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Dr. Margaret Bell Fischer, MD, FAAP

Claimed Profile
Accepting New Patients
Specializes in: Internal Medicine (Adult Medicine), Cardiac Electrophysiology (Heart Rhythm) and Pediatric Cardiology
University of Toledo College of Medicine
Professional interests include: bicuspid aortic valve disease, aortic aneurysm, sleep disorders, and more.
3020 Hamaker Court Suite 502
Fairfax, VA 22031

Dr. Margaret Bell Fischer, MD, FAAP is an internist in Fairfax, VA specializing in internal medicine (adult medicine), cardiac electrophysiology (heart rhythm) and pediatric cardiology. She graduated from University of Toledo College of Medicine. Dr. Margaret Bell Fischer, MD, FAAP is affiliated with MedStar Georgetown University Hospital, Reston Hospital Center, Virginia Hospital Center, Frederick Health, HCA Virginia, MedStar Washington Hospital Center, MedStar Health and MedStar Southern Maryland Hospital Center.

View Doctor's Full Profile (703) 208-7257

Office Locations

3020 Hamaker Court Suite 502
Fairfax, VA 22031
(703) 208-7257
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1733 HOWELL ROAD
HAGERSTOWN, MD 21740
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Frederick Health

163 Thomas Johnson Drive Suite E
Frederick, MD 21702
(202) 877-7685
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MedStar Southern Maryland Hospital Center

1733 Howell Road
Hagerstown, MD 21742
1-855-374-5342
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Some issues Dr. Margaret Bell Fischer, MD, FAAP can help you with:

Cardiac Resynchronization Therapy (CRT)

A cardiac resynchronization therapy device, also known as a CRT or biventricular pacemaker, is a kind of pacemaker that can help the heart work more effectively. In certain kinds of heart failure, the ventricles, or larger chambers in the heart, stop working together. When they are no longer in synch, the heart can't pump enough blood to meet the body's needs. CRT can help keep the heartbeat regular and the ventricles contracting at the same time.

Just as with a standard pacemaker, a biventricular pacemaker consists of a small battery pack and electrical leads, or small wires that conduct electricity to the heart. CRT pacemakers have two or three leads, placed in the upper and lower chambers of the heart. The device measures the contractions of the heart, and if the heart begins to beat out of time it will send small, rhythmic pulses of electricity to resynchronize (hence the name 'cardiac resynchronization therapy) the contractions. This allows the heart to pump blood to the rest of the body more efficiently. Sometimes a CRT is combined with a different kind of device called an implantable cardioverter-defibrillator or ICD, which uses a higher burst of energy to restart the heart if it stops suddenly.

When a biventricular pacemaker is inserted, the wire leads are usually placed via a small incision near the shoulder, then threaded through a vein to the heart. The battery pack is placed under the skin of the chest near the collarbone. Once everything is in place, the leads are connected to the battery, and the CRT can begin helping the heart beat correctly.

It is normal to experience swelling and discomfort as the incisions from surgery heal. It takes time for the heart to adjust to the pacemaker, so vigorous activity should be kept to a minimum for the first few weeks. Strong magnetic fields may affect how the CRT functions, so patients may be advised to avoid them. As patients heart begins to pump blood more effectively, they should soon begin to feel stronger and less fatigued.

Heart Attack

A heart attack is a serious medical event that happens when the blood supplying oxygen to the heart is cut off, usually because of a blockage in an artery. This results in damage or death of part of the heart muscle. The heart can heal, but like any part of the body that was injured it leaves a scar. This scar tissue does not contract effectively, so the ability of the heart to pump is lowered after a heart attack.

A heart attack, sometimes called a myocardial infarction, can happen without warning. However there are certain factors that raise the risk of heart attack. Some of these are:

  • Age
  • Gender (most heart attack sufferers are male)
  • A family history of heart attacks
  • Smoking
  • Obesity
  • High cholesterol
  • High blood pressure
  • Diabetes
  • Unhealthy lifestyle choices (lack of exercise, poor diet, too much alcohol or stress)

Heart attacks typically feel like pain or pressure in the chest that can radiate out to the back, arm, or jaw. Some other symptoms can include fatigue or weakness, shortness of breath, sweating, and nausea.

Treatment aims to increase blood flow to the heart muscle by opening up blocked blood vessels. Medications are sometimes used to dissolve clots in the arteries. Aspirin and other medications such as Plavix can thin the blood and make clots less likely to form. Dilators can widen blood vessels to make room for more blood to flow. Doctors can also use a procedure called catheterization to look at the blood vessels around the heart directly, place stents, or widen vessels using angioplasty. In extreme cases bypass surgery can be used to help blood flow better. After recovery, it is important to lead a healthy lifestyle and take any prescribed medications in order to protect the heart.

Heart Problems

The heart is one of the most important organs in the body. This smooth muscle expands and contracts rhythmically an entire lifetime, pumping blood to the lungs and then to every other cell in the body. When heart problems occur, it becomes difficult for the body to get the nutrients and oxygen it needs via the blood. So while there are a variety of illnesses and disorders that affect the heart, most of them cause weakness, exhaustion and shortness of breath. The most common heart conditions include heart disease, angina, arrhythmia, and valve disorders.

Heart disease is the leading cause of death in the United States for both men and women. This includes coronary artery disease, heart attacks, congestive heart failure, and congenital heart disease. Some conditions, such as genetics, cannot be controlled. But there are many other things one can do to lower their risk for heart disease. Controlling high blood pressure and cholesterol levels, reducing or stopping smoking, exercising more and losing weight if needed, and eating a diet low in sodium can all protect the heart.

Angina is a squeezing type of chest pain that happens when the muscles around the heart don't get enough oxygen. It can be regular or infrequent. Usually, angina is caused by coronary heart disease. However, not all chest pain is angina. Chest pain can also be caused by a lung infection or panic attack, for example, so it is important to have any sudden pain checked.

Arrhythmia is the word for when the heart beats too fast, too slow, or irregularly with skipped beats. It can feel frightening, and depending on the type it can be dangerous, but in most cases arrhythmia is not serious and can be treated. It is very common, especially in older adults.

Heart valve problems can happen in any one of the the heart's four valves that keep blood flowing where it needs to go. Babies can be born with problems in their heart valves, or valves can be damaged by infections. The valves can stiffen and become less mobile, or they can stop closing properly and 'leak' when the heart beats. Valve problems can usually be repaired surgically.

Noteworthy Medicare Patient Procedures Performed by Dr. Margaret Bell Fischer, MD, FAAP in 2023

Click on any procedure below to see further details on volume and pricing among Medicare patients.

Top 5%

By Volume:

extremity venogram

In 2023, Dr. Margaret Bell Fischer, MD, FAAP performed more extremity venogram procedures for Medicare patients than 95% of providers in related specialties within Virginia.

Top 25%

By Volume:

angiogram
cardiac device implantation
minimally invasive procedures
permanent transvenous pacemaker implantation
permanent transvenous pacemaker replacement

In 2012, Dr. Margaret Bell Fischer, MD, FAAP performed more angiogram (angiography), cardiac device implantation, minimally invasive procedures, permanent transvenous pacemaker implantation, and permanent transvenous pacemaker replacement procedures for Medicare patients than 75% of providers in related specialties within Virginia.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Margaret Bell Fischer, MD, FAAP treated as an internist in Fairfax, VA during 2012 were cardiac procedures, hospital care, inpatient care and ambulatory monitoring.

Volume of procedures performed by Dr. Margaret Bell Fischer, MD, FAAP for Medicare patients.

ambulatory monitoring 43
cardiac procedures 91
diagnostic procedures 11
doctor visit 743
hospital care 87
implant surgery 37
implantable cardioverter-defibrillator (ICD) replacement 17
inpatient care 87
minimally invasive procedures 37

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Margaret Bell Fischer, MD, FAAP treated as an internist in Fairfax, VA during 2013 were hospital care and inpatient care.

Volume of procedures performed by Dr. Margaret Bell Fischer, MD, FAAP for Medicare patients.

hospital care 725
inpatient care 725

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Margaret Bell Fischer, MD, FAAP.

Gender
Male 130
Female 176
Ethnicity
Non-Hispanic White 293
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 75
From 75 to 84 110
85 and over 88
Less than 65 33

Conditions of Medicare patients treated by Dr. Margaret Bell Fischer, MD, FAAP in 2013

Hypertension 75
High Cholesterol 71
Stroke 14
Ischemic Heart Disease 54
Depression 41
Chronic Kidney Disease 51
Asthma 14
Osteoperosis 15
Atrial Fibrilation 28
Heart Failure 41
Chronic Obstructive Pulmonary Disease 33
Diabetes 42
Dementia 29
Cancer 13

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Margaret Bell Fischer, MD, FAAP treated as an internist in Fairfax, VA during 2014 were hospital care, inpatient care and outpatient care.

Volume of procedures performed by Dr. Margaret Bell Fischer, MD, FAAP for Medicare patients.

hospital care 1029
inpatient care 992
outpatient care 37

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Margaret Bell Fischer, MD, FAAP.

Gender
Male 179
Female 252
Ethnicity
Non-Hispanic White 415
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 107
From 75 to 84 139
85 and over 123
Less than 65 62

Conditions of Medicare patients treated by Dr. Margaret Bell Fischer, MD, FAAP in 2014

Hypertension 75
High Cholesterol 75
Stroke 16
Ischemic Heart Disease 58
Depression 42
Chronic Kidney Disease 53
Asthma 14
Osteoperosis 14
Atrial Fibrilation 31
Heart Failure 46
Chronic Obstructive Pulmonary Disease 29
Diabetes 46
Dementia 21
Cancer 17

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Margaret Bell Fischer, MD, FAAP treated as an internist in Fairfax, VA during 2015 were hospital care and inpatient care.

Volume of procedures performed by Dr. Margaret Bell Fischer, MD, FAAP for Medicare patients.

doctor visit 68
hospital care 286
inpatient care 286

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Margaret Bell Fischer, MD, FAAP.

Gender
Male 230
Female 248
Ethnicity
Non-Hispanic White 368
Black 68
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 164
From 75 to 84 154
85 and over 108
Less than 65 52

Conditions of Medicare patients treated by Dr. Margaret Bell Fischer, MD, FAAP in 2015

Hypertension 75
High Cholesterol 75
Stroke 16
Ischemic Heart Disease 72
Depression 30
Chronic Kidney Disease 55
Asthma 25
Osteoperosis 8
Atrial Fibrilation 47
Heart Failure 55
Chronic Obstructive Pulmonary Disease 33
Diabetes 48
Dementia 15
Cancer 15

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Margaret Bell Fischer, MD, FAAP treated as an internist in Fairfax, VA during 2016 were minimally invasive procedures, implant surgery, cardiac procedures and hospital care.

Volume of procedures performed by Dr. Margaret Bell Fischer, MD, FAAP for Medicare patients.

cardiac procedures 28
doctor visit 124
hospital care 20
implant surgery 28
inpatient care 20
minimally invasive procedures 28

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Margaret Bell Fischer, MD, FAAP.

Gender
Male 160
Female 117
Ethnicity
Non-Hispanic White 206
Black 43
Hispanic 0
Asian 13
Other 0
Native American 0
Age
From 65 to 74 104
From 75 to 84 97
85 and over 56
Less than 65 20

Conditions of Medicare patients treated by Dr. Margaret Bell Fischer, MD, FAAP in 2016

Hypertension 75
High Cholesterol 75
Stroke 13
Ischemic Heart Disease 68
Depression 17
Chronic Kidney Disease 45
Asthma 21
Osteoperosis 5
Atrial Fibrilation 58
Heart Failure 53
Chronic Obstructive Pulmonary Disease 17
Diabetes 42
Dementia 13
Cancer 15

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Margaret Bell Fischer, MD, FAAP treated as an internist in Fairfax, VA during 2017 were minimally invasive procedures, hospital care, inpatient care and cardiac procedures.

Volume of procedures performed by Dr. Margaret Bell Fischer, MD, FAAP for Medicare patients.

ablation 14
cardiac procedures 46
cardioversion 13
catheterization 14
diagnostic procedures 14
doctor visit 179
hospital care 49
implant surgery 32
inpatient care 49
minimally invasive procedures 60

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Margaret Bell Fischer, MD, FAAP.

Gender
Male 266
Female 198
Ethnicity
Non-Hispanic White 344
Black 61
Hispanic 0
Asian 30
Other 0
Native American 0
Age
From 65 to 74 154
From 75 to 84 195
85 and over 92
Less than 65 23

Conditions of Medicare patients treated by Dr. Margaret Bell Fischer, MD, FAAP in 2017

Hypertension 75
High Cholesterol 75
Stroke 13
Ischemic Heart Disease 69
Depression 18
Chronic Kidney Disease 44
Asthma 11
Osteoperosis 9
Atrial Fibrilation 55
Heart Failure 54
Chronic Obstructive Pulmonary Disease 17
Diabetes 37
Dementia 16
Cancer 12

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Margaret Bell Fischer, MD, FAAP treated as an internist in Fairfax, VA during 2018 were minimally invasive procedures, cardiac procedures, hospital care and implant surgery.

Volume of procedures performed by Dr. Margaret Bell Fischer, MD, FAAP for Medicare patients.

ablation 15
cardiac procedures 115
cardioversion 11
catheterization 15
diagnostic procedures 15
doctor visit 235
hospital care 108
implant surgery 84
implantable cardioverter-defibrillator (ICD) replacement 18
inpatient care 84
minimally invasive procedures 130
ultrasound (sonogram) 16

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Margaret Bell Fischer, MD, FAAP.

Gender
Male 252
Female 197
Ethnicity
Non-Hispanic White 312
Black 97
Hispanic 0
Asian 19
Other 0
Native American 0
Age
From 65 to 74 165
From 75 to 84 161
85 and over 89
Less than 65 34

Conditions of Medicare patients treated by Dr. Margaret Bell Fischer, MD, FAAP in 2018

Hypertension 75
High Cholesterol 75
Stroke 15
Ischemic Heart Disease 69
Depression 18
Chronic Kidney Disease 47
Asthma 10
Osteoperosis 7
Atrial Fibrilation 58
Heart Failure 54
Chronic Obstructive Pulmonary Disease 20
Diabetes 37
Dementia 18
Cancer 15

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Margaret Bell Fischer, MD, FAAP treated as an internist in Fairfax, VA during 2019 were minimally invasive procedures, cardiac procedures, hospital care and implant surgery.

Volume of procedures performed by Dr. Margaret Bell Fischer, MD, FAAP for Medicare patients.

ablation 40
cardiac procedures 139
cardioversion 20
catheterization 40
diagnostic procedures 40
doctor visit 361
hospital care 111
implant surgery 65
implantable cardioverter-defibrillator (ICD) replacement 19
inpatient care 48
minimally invasive procedures 179
outpatient care 26
ultrasound (sonogram) 34

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Margaret Bell Fischer, MD, FAAP.

Gender
Male 175
Female 148
Ethnicity
Non-Hispanic White 234
Black 53
Hispanic 0
Asian 14
Other 0
Native American 0
Age
From 65 to 74 113
From 75 to 84 121
85 and over 65
Less than 65 24

Conditions of Medicare patients treated by Dr. Margaret Bell Fischer, MD, FAAP in 2019

Hypertension 75
High Cholesterol 75
Stroke 11
Ischemic Heart Disease 63
Depression 20
Chronic Kidney Disease 41
Asthma 9
Osteoperosis 7
Atrial Fibrilation 55
Heart Failure 46
Chronic Obstructive Pulmonary Disease 24
Diabetes 40
Dementia 18
Cancer 14

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Margaret Bell Fischer, MD, FAAP treated as an internist in Fairfax, VA during 2020 were hospital care, minimally invasive procedures, cardiac procedures and inpatient care.

Volume of procedures performed by Dr. Margaret Bell Fischer, MD, FAAP for Medicare patients.

ablation 22
cardiac procedures 95
catheterization 22
diagnostic procedures 22
doctor visit 373
hospital care 134
implant surgery 48
inpatient care 85
minimally invasive procedures 117
ultrasound (sonogram) 25
vascular procedures 36

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Margaret Bell Fischer, MD, FAAP.

Gender
Male 171
Female 136
Ethnicity
Non-Hispanic White 253
Black 31
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 123
From 75 to 84 125
85 and over 0
Less than 65 0

Conditions of Medicare patients treated by Dr. Margaret Bell Fischer, MD, FAAP in 2020

Hypertension 75
High Cholesterol 75
Stroke 11
Ischemic Heart Disease 63
Depression 19
Chronic Kidney Disease 39
Asthma 9
Osteoperosis 6
Atrial Fibrilation 54
Heart Failure 47
Chronic Obstructive Pulmonary Disease 19
Diabetes 35
Dementia 16
Cancer 14

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Margaret Bell Fischer, MD, FAAP treated as an internist in Fairfax, VA during 2021 were minimally invasive procedures, cardiac procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Margaret Bell Fischer, MD, FAAP for Medicare patients.

ablation 44
cardiac procedures 135
cardioversion 21
catheterization 44
diagnostic procedures 44
doctor visit 415
hospital care 123
implant surgery 52
implantable cardioverter-defibrillator (ICD) replacement 13
inpatient care 60
minimally invasive procedures 179
ultrasound (sonogram) 39
vascular procedures 58

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Margaret Bell Fischer, MD, FAAP.

Gender
Male 190
Female 178
Ethnicity
Non-Hispanic White 281
Black 50
Hispanic 14
Asian 0
Other 0
Native American 0
Age
From 65 to 74 138
From 75 to 84 134
85 and over 70
Less than 65 26

Conditions of Medicare patients treated by Dr. Margaret Bell Fischer, MD, FAAP in 2021

Hypertension 75
High Cholesterol 75
Stroke 13
Ischemic Heart Disease 64
Depression 20
Chronic Kidney Disease 47
Asthma 11
Osteoperosis 9
Atrial Fibrilation 56
Heart Failure 47
Chronic Obstructive Pulmonary Disease 22
Diabetes 38
Dementia 14
Cancer 12

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Margaret Bell Fischer, MD, FAAP treated as an internist in Fairfax, VA during 2022 were hospital care, minimally invasive procedures, cardiac procedures and inpatient care.

Volume of procedures performed by Dr. Margaret Bell Fischer, MD, FAAP for Medicare patients.

ablation 32
cardiac procedures 99
cardioversion 20
catheterization 32
diagnostic procedures 32
doctor visit 447
hospital care 184
implant surgery 67
implantable cardioverter-defibrillator (ICD) replacement 28
inpatient care 75
minimally invasive procedures 162
outpatient care 12
revision surgery 18
vascular procedures 72

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Margaret Bell Fischer, MD, FAAP.

Gender
Male 223
Female 207
Ethnicity
Non-Hispanic White 360
Black 40
Hispanic 0
Asian 0
Other 14
Native American 0
Age
From 65 to 74 166
From 75 to 84 168
85 and over 72
Less than 65 24

Conditions of Medicare patients treated by Dr. Margaret Bell Fischer, MD, FAAP in 2022

Hypertension 75
High Cholesterol 75
Stroke 15
Ischemic Heart Disease 53
Depression 22
Chronic Kidney Disease 32
Asthma 14
Osteoperosis 11
Atrial Fibrilation 65
Heart Failure 41
Chronic Obstructive Pulmonary Disease 19
Diabetes 40
Dementia 8
Cancer 14

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Margaret Bell Fischer, MD, FAAP treated as an internist in Fairfax, VA during 2023 were minimally invasive procedures, cardiac procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Margaret Bell Fischer, MD, FAAP for Medicare patients.

ablation 30
cardiac procedures 96
cardioversion 17
catheterization 30
diagnostic procedures 30
doctor visit 422
hospital care 78
implant surgery 66
implantable cardioverter-defibrillator (ICD) replacement 17
inpatient care 78
minimally invasive procedures 126
vascular procedures 43

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Margaret Bell Fischer, MD, FAAP.

Gender
Male 233
Female 224
Ethnicity
Non-Hispanic White 380
Black 46
Hispanic 0
Asian 0
Other 15
Native American 0
Age
From 65 to 74 154
From 75 to 84 198
85 and over 82
Less than 65 23

Conditions of Medicare patients treated by Dr. Margaret Bell Fischer, MD, FAAP in 2023

Hypertension 75
High Cholesterol 75
Stroke 19
Ischemic Heart Disease 55
Depression 26
Chronic Kidney Disease 34
Asthma 14
Osteoperosis 13
Atrial Fibrilation 65
Heart Failure 41
Chronic Obstructive Pulmonary Disease 18
Diabetes 37
Dementia 9
Cancer 17

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Volume of procedures performed by Dr. Margaret Bell Fischer, MD, FAAP for Medicare patients.

The highest averages for the top procedures that Dr. Margaret Bell Fischer, MD, FAAP treated as an internist in Fairfax, VA were hospital care, inpatient care, minimally invasive procedures and cardiac procedures.

ablation 28
ambulatory monitoring 43
cardiac procedures 93
cardioversion 17
catheterization 28
diagnostic procedures 26
doctor visit 336
hospital care 244
implant surgery 53
implantable cardioverter-defibrillator (ICD) replacement 18
inpatient care 215
minimally invasive procedures 113
outpatient care 25
revision surgery 18
ultrasound (sonogram) 28
vascular procedures 52

Average Medicare Patient Data From 2012 - 2023

Information about Medicare patients treated by Dr. Margaret Bell Fischer, MD, FAAP.

Gender
Male 184
Female 173
Ethnicity
Black / African American 40
Asian / Pacific Islander 6
Non-Hispanic White 287
Hispanic 1
Native American / Alaskan Native 0
Other 2
Age
75 to 84 133
85 and over 70
Less than 65 26
65 to 74 121

Average of Total of Conditions of Medicare patients treated by Dr. Margaret Bell Fischer, MD, FAAP From 2012 - 2023

The highest averages of the most common conditions of Medicare patients that Dr. Margaret Bell Fischer, MD, FAAP treated were high cholesterol, hypertension, ischemic heart disease and atrial fibrilation.

Hypertension 68
High Cholesterol 68
Stroke 13
Ischemic Heart Disease 57
Depression 22
Chronic Kidney Disease 40
Asthma 12
Osteoporosis 8
Heart Failure 43
Chronic Obstructive Pulmonary Disease 20
Diabetes 36
Atrial Fibrillation 47
Cancer 13
Dementia 14

Education & Training

Dr. Margaret Bell Fischer, MD, FAAP graduated from University of Toledo College of Medicine. She completed residency at Cardinal Glennon Children's Medical Center. She is certified by the Pediatric Cardiology - American Board of Pediatrics Internal Medicine - American Board of Internal Medicine and has a state license in Pennsylvania.

Medical School: University of Toledo College of Medicine

Residency: Cardinal Glennon Children's Medical Center (1990)

Board Certification: Pediatric Cardiology - American Board of Pediatrics Internal Medicine - American Board of Internal Medicine

Licensed In: Pennsylvania

Affiliations & Hospitals

Dr. Margaret Bell Fischer, MD, FAAP is associated with these hospitals and organizations:

MedStar Georgetown University Hospital
Reston Hospital Center
Virginia Hospital Center
Frederick Health
HCA Virginia
MedStar Washington Hospital Center
MedStar Health
MedStar Southern Maryland Hospital Center

Insurance Information

Please note: Insurance information may change at any time, and the provider may accept your insurance plan even if it is not listed below. Please contact the provider's office to confirm that your insurance is accepted.

Dr. Margaret Bell Fischer, MD, FAAP appears to accept the following insurance providers: MultiPlan, Optimum Choice, Optima Health, MAMSI, Magellan Health Services, United Healthcare Choice Plus, United Healthcare Choice, First Health PPO, Blue Choice, Great-West Healthcare, TRICARE, Coventry, TRICARE Reserve Select, Anthem, Aetna Managed Choice POS, Beech Street PPO, Aetna HMO, Kaiser Permanente, CIGNA PPO, CIGNA EPO, Aetna Medicare PPO, Aetna Medicare PFFS, CIGNA Indemnity, AmeriHealth, AARP, Medicare Advantage, TriWest, Coventry National Network PPO, Highmark, Amerigroup, United Healthcare, Medicaid, Humana, Cigna, Sentara Health Plans, WellPoint, United Healthcare Community Plan (AmeriChoice), Humana Medicare Advantage PPO, Blue Cross and Blue Shield of Michigan, CIGNA PPO Plus, HealthyBlue PPO, Aetna Premier 200PD, MedStar Family Choice - Maryland Health Choice, CareFirst NASCO, Private Fee-for-Service Plans (PFFS), M.D. IPA Preferred (POS), CareFirst Maryland Indemnity or PPO, IH-PPO, DC/MD SHOP QHP Small Business Plans, Aetna Advantage 6350PD, CareFirst EPO, MedStar Family Choice DC Healthy Families, Optimum Choice Preferred (POS), Medicare Direct, OCI Direct (HMO), Alterwood Advanatge HMO & DSNP Plans, Aetna Open Choice (PPO), OA Plus, CareFirst Administrators, United Student Resources, IH-Network Only Plus, IH-POS, Aetna Classic 5000, Aetna Signature Administrator PPO/TPA, Healthy Blue (HMO, POS), CareFirst Community Health Plan of Maryland, IH-POS Plus, Jai Medical Systems - Maryland Health Choice, CareFirst Maryland Point of Service Plan, Aetna HMO-Open Access/Select OA/HealthFund/Health Network Option OA, Health Services for Children with Special Needs, Choice POS II, CareFirst Blue Card Program, Choice Fund PPO, IH-EPO Plus, Aetna VA Exchange, Aetna Managed Choice Open Access (POS), CareFirst BlueCross BlueShield Advantage Core/Enhanced, Aetna Better Health of Virginia, Aetna Worker's Compensation Network, Options PPO Cardiac Global, Uniformed Services Family Health Plan, Aetna Advantage 5750, IH-Open HMO Option, HumanaChoice Honor's plan PPO, Aetna Basic, CareFirst FEP Blue Focus, Optimum Choice & Optimum Choice Preferred (POS) Cardiac Global, MedStar Family Choice DC Healthcare Alliance, Core Essential (HMO), IH-Open EPO Plus, IH-Open POS Plus, Johns Hopkins Advantage MD PLUS PPO, Select HMO/HealthFund/Health Network, MD IPA (HMO) & MD IPA Preferred Cardiac Global, CareFirst Blue Preferred PPO, Aetna Elect Choice/ Open Access (POS), IH-Open HMO, Aetna Advantage 6350, Erickson Advantage Plans, M.D. IPA (HMO), POS OA, Aetna Elect Choice/ EPO (Aetna Health Fund), Aetna Quality Point of Service (POS), IH-Open POS II, Johns Hopkins Advantage MD HMO, Aetna Classic 5000PD, CareFirst Dual Prime HMO-SNP, Priority Partners - Maryland Health Choice, Aetna Student Health Insurance, Private Health Care Systems (PPO), Choice POS, Lasso Healthcare - Medicare Medical Savings Account, IH-Indemnity, CareFirst MedStar PPO, CareFirst (NCA) Indemnity, Aetna Traditional Choice (PPO), United Medicare Private Fee-for-Service (PFFS) plans, IH-HMO, IH-Open Network Only Plus, HumanaChoice PPO, CareFirst Federal Employee Program (Std. & Basic PPO), Johns Hopkins Advantage MD PPO, Medicare FFS, Maryland Physicians Care MCO, Veterans Affairs Community Care Network, Advantra Platinum (PPO), Aetna Better Health of Maryland, BCBS Out-of-State Medicare Plans (Blue Advantage), Employee Health Plan, Choice POS II Open Access, Navigate, Police and Fire Clinic, Network OA, Aetna Classic 3500 and CareFirst MedStar Select PPO.

Insurance Accepted by Provider includes:

According to our sources, Dr. Margaret Bell Fischer, MD, FAAP accepts the following insurance providers:

MultiPlan
Optimum Choice
Optima Health
MAMSI
Magellan Health Services
United Healthcare Choice Plus
United Healthcare Choice
First Health PPO
Blue Choice
Great-West Healthcare
TRICARE
Coventry
TRICARE Reserve Select
Anthem
Aetna Managed Choice POS
Beech Street PPO
Aetna HMO
Kaiser Permanente
CIGNA PPO
CIGNA EPO
Aetna Medicare PPO
Aetna Medicare PFFS
CIGNA Indemnity
AmeriHealth
AARP
Medicare Advantage
TriWest
Coventry National Network PPO
Highmark
Amerigroup
United Healthcare
Medicaid
Humana
Cigna
Sentara Health Plans
WellPoint
United Healthcare Community Plan (AmeriChoice)
Humana Medicare Advantage PPO
Blue Cross and Blue Shield of Michigan
CIGNA PPO Plus
HealthyBlue PPO
Aetna Premier 200PD
MedStar Family Choice - Maryland Health Choice
CareFirst NASCO
Private Fee-for-Service Plans (PFFS)
M.D. IPA Preferred (POS)
CareFirst Maryland Indemnity or PPO
IH-PPO
DC/MD SHOP QHP Small Business Plans
Aetna Advantage 6350PD
CareFirst EPO
MedStar Family Choice DC Healthy Families
Optimum Choice Preferred (POS)
Medicare Direct
OCI Direct (HMO)
Alterwood Advanatge HMO & DSNP Plans
Aetna Open Choice (PPO)
OA Plus
CareFirst Administrators
United Student Resources
IH-Network Only Plus
IH-POS
Aetna Classic 5000
Aetna Signature Administrator PPO/TPA
Healthy Blue (HMO, POS)
CareFirst Community Health Plan of Maryland
IH-POS Plus
Jai Medical Systems - Maryland Health Choice
CareFirst Maryland Point of Service Plan
Aetna HMO-Open Access/Select OA/HealthFund/Health Network Option OA
Health Services for Children with Special Needs
Choice POS II
CareFirst Blue Card Program
Choice Fund PPO
IH-EPO Plus
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Navigate
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Ratings & Reviews

Dr. Margaret Bell Fischer, MD, FAAP has an exceptional overall rating with an average of 4.9 out of 5 stars based on 1227 ratings. We collect ratings and reviews of Dr. Margaret Bell Fischer, MD, FAAP from all over the web to help you find the right in Fairfax, VA. 

4.9
Overall Rating
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Reviews Left On DocSpot
Overall Rating: 5.0 2018-03-23 
I first met Dr. Fischer in the ER due to bradycardia. My first impression of Dr. Fischer was very very good! She had a warm and kind personality. Rooted in years of experience I knew I was in good hands. The solution was to have a pacemaker implant. Dr. Fischer would be my surgeon. I couldn't have been happier! She did an amazing job! Her entire team  walked me through each step and made adjustments as I recovered. There's no words to describe Dr. Fischer and her team besides they're angels/Godsent. I highly recommend her practice. Thank you Dr. Fischer, Sarah, Jim, Sarah, and the entire staff!
Reviews From Around The Web
Overall Rating: 5.0 2024-10-16
Patient verified via Press Ganey
An outstanding job by the doctor, Dr. Fischer. She made sure I understood everything that we discussed asked for my input was very grateful that I brought paperwork with me. And will make every effort to have my procedure done as soon as possible.
Overall Rating: 5.0 2024-03-20
Patient verified via Press Ganey
I very much appreciate being consulted and respected for being well informed about my condition, and being included on my diagnosis and treatment.
Overall Rating: 5.0 2025-03-25
Patient verified via Press Ganey
Dr. Fischer did a WONDERFUL job explaining my condition and treatment. Dr. Fischer should be given an "excellent" rating (above very good)!
Overall Rating: 5.0 2024-05-23
Patient verified via Press Ganey
Dr. Fischer in my opinion has gone beyond what she needed to do. She shows caring and compassion at all times. I recommend her to others.
Overall Rating: 5.0 2024-05-16
Patient verified via Press Ganey
Dr. Fischer listens and responds to questions in an excellent manner. I'm extremely satisfied with het care
Overall Rating: 5.0 2023-08-18
Patient verified via Press Ganey
Dr Fischer very thorough, knowledgeable, patient, kind, listens well, explains well, highly recommend her.
Overall Rating: 5.0 2025-09-27
Patient verified via Press Ganey
Detailed explanations and repeated chances for me to ask more questions
Overall Rating: 5.0 2023-10-20
Patient verified via Press Ganey
Dr Fisher was the FIRST actual Dr that took the time to listen to me.
Overall Rating: 5.0 2025-05-22
Patient verified via Press Ganey
MD explained everything to me with good detail. She was very caring.

To see all 1227 reviews for Dr. Margaret Bell Fischer, MD, FAAP, view their full profile.

General Payments

These charts describe general payments received by Dr. Margaret Bell Fischer, MD, FAAP. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

Payments by Company
Abbott Laboratories $4,526 ENSITE PRECISION
$2,273 		Ensite Cardiac Mapping System
$1,838 		Tendril
$79 		Ensite
$75 		TactiCath Quartz CFA Catheter
$37 		Other
$224
Medtronic Vascular, Inc. $1,640 Amplia MRI
$218 		Capsure
$217 		Claria MRI
$168 		Azure
$130 		Arctic Front
$127 		Other
$780
Biosense Webster, Inc. $1,598 Carto 3 System
$1,020 		Carto 3
$415 		Confidense
$109 		CartoSound
$54
St. Jude Medical, Inc. $1,217 CardioMEMS HF System
$1,107 		Unify Assura
$91 		Electrophysiology
$19
BIOTRONIK INC. $1,067 Bradycardia products
$802 		Setrox
$139 		Solia
$15 		Astron
$10
$100
Other $2,302 Micra
$726 		XARELTO
$219 		Pradaxa
$127 		OPTIMIZER
$120 		X4 CRTD
$100 		Other
$1,011
Types of Payments
Food and Beverage $6,374
Travel and Lodging $5,923
Entertainment $37
Education $16

Biography

Dr. Margaret Fischer is a specialist in pediatric cardiology and cardiac electrophysiology (heart rhythm). Her areas of expertise include rheumatic heart disease, heart tumor, and sick sinus syndrome. Dr. Fischer's patients gave her an average rating of 5.0 stars (out of 5). She usually is in-network for Anthem, Blue California, and Coventry, as well as other insurance carriers. She graduated from the University of Toledo College of Medicine. For her residency, Dr. Fischer trained at Cleveland Clinic, Cardinal Glennon Children's Medical Center, and a hospital affiliated with Baylor College of Medicine. Dr. Fischer's hospital/clinic affiliations include Frederick Health, MedStar Georgetown University Hospital, and MedStar Southern Maryland Hospital Center. Dr. Fischer has an open panel in Hagerstown, MD according to Doctor.com.

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