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Dr. Jeffrey N. Posner, MD

(Dr. Jeffrey Posner, M.D.)

(No ratings)

Specializes in: Adult Nephrology
Stony Brook University Medical Center, School of Medicine (1980)
Professional interests include: venous thrombosis, percutaneous nephrolithotomy (PCNL), nephrotic syndrome, and more.
9000 Franklin Square Drive
Baltimore, MD 21237

Dr. Jeffrey N. Posner, MD is a nephrologist in Lutherville Timonium, MD specializing in adult nephrology. He graduated from Stony Brook University Medical Center, School of Medicine in 1980 and has 46 years of experience. Dr. Jeffrey N. Posner, MD is affiliated with University of Maryland Medical System, MedStar Franklin Square Medical Center, GBMC Healthcare, MedStar Health and MedStar Union Memorial Hospital.

View Doctor's Full Profile (443) 777-7000

Office Locations

University of Maryland Medical System

1205 York Road Suite 26
Lutherville Timonium, MD 21093
(410) 532-1640
(410) 321-5787
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University of Maryland Medical System

1589 Sulphur Spring Road Suite 109
Baltimore, MD 21227
(410) 536-5400
(410) 737-2168
open_in_new
201 E University Parkway
Baltimore, MD 21218
open_in_new
25 Crossroads Drive Suite 205
Owings Mills, MD 21117
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MedStar Union Memorial Hospital

9000 Franklin Square Drive
Baltimore, MD 21237
(443) 777-7000
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Some issues Dr. Jeffrey N. Posner, MD can help you with:

Anemia

Anemia is the most common blood disorder. It occurs when the body does not have enough red blood cells to carry oxygen to the tissues. Blood loss, insufficient red blood cell production, and red blood cell destruction are the three main causes of anemia. These issues may arise from such conditions as iron deficiency, heavy periods, ulcers, kidney disease, as well as some forms of cancer.

An individual with anemia will have the following symptoms: shortness of breath, weakness, dizziness, cold hands or feet, paleness, and irritability. Anemia is diagnosed when blood tests show low counts for hemoglobin, which is the protein responsible for carrying oxygen to different tissues throughout the body.

Treatments for anemia are dependent on the kind of anemia an individual has. For example, iron supplementation may correct iron deficiency anemia. For anemia caused by chronic kidney failure, chemotherapy treatments, and HIV/AIDS, a group of medications called erythropoiesis-stimulating agents may be prescribed.

Kidney Stones

Kidney stones are hard deposits that form in the kidneys, made up of minerals that are normally present in urine. They can vary in size, from as small as a grain of sand to as large as a nickel, occasionally even larger. Sometimes they lodge in the kidney, and sometimes they break free and make their way out through the urinary tract, which can be extremely painful.

Kidney stones can be smooth or jagged and are yellow to brown in color. They are mostly comprised of the minerals calcium, oxalate, and phosphorus. Examining the stones to see what they are made of can show what caused the stone to be formed in the first place. For example, a stone made of mostly calcium, which is the most common type, can happen any time the urine becomes too concentrated due to dehydration or a blockage in the kidney. A uric acid stone forms when acid levels in the urine get too high, usually due to excessive consumption of animal protein such as meat and fish. A struvite stone is a sign of certain infections, and a cystine stone can be due to a genetic disorder that raises the risk of kidney stones.

The most common symptom of kidney stones is pain, either in the back or lower abdomen, or severe pain when urinating. There may also be blood in the urine. Treatment for kidney stones depends on how large the stone is. Very small stones can pass out of the body on their own, and they do not require treatment other than drinking adequate water and taking pain killers. Larger stones need to be broken apart and removed. The main treatment options are:

  • Shock wave lithotripsy, which uses sound wave vibrations to break apart the stone
  • Percutaneous nephrolithotomy, or the use of a very tiny tool (like a wire inserted through the back) to break apart and remove the stone
  • Ureteroscopy, a thin tube inserted through the urethra and bladder to the stone, where tiny tools can grasp the stone and remove

People who have had one kidney stone are at risk of developing another. To reduce this risk, patients are given instructions specific to the type of stone they developed. Generally the instructions will include drinking more water to dilute the urine, but it may also involve lowering sodium intake or eating less meat.

Nutrition Counseling

Food is one of the most basic resources the human body uses for growth and energy, tied intricately to well-being. Not only can diet affect health, but certain conditions can affect how the body processes food. Nutrition is the study of this complex interaction, and when patients seek the advice of an expert to help them manage food in their life, it is called nutrition counseling.

At the most basic level, nutrition counseling can be simply a talk with a family physician. Doctors receive training in nutrition as part of their education, and they are generally qualified to make recommendations about diet for their patients. Some doctors take a professional interest in nutrition and become experts by taking extra classes or studying nutrition in their practice. In general, however, complex nutrition guidance will be referred to a nutrition specialist, generally a dietitian.

Registered dietitians are nutrition experts that have passed specific higher education, accreditation, and internship requirements. They may work in hospitals, nursing facilities, or private practices to provide nutrition therapy and advise patients about their health and diet. Like dietitians, nutritionists also work to counsel patients about food and health. Some nutritionists have degrees in nutrition or food science, but the title 'nutritionist' is not protected by law. In the United States, anyone is allowed to call themselves a nutritionist, regardless of their education level.

Nutrition counseling can be useful for anyone who is looking to get to a healthy weight, manage a chronic illness through diet, or simply lead a healthier lifestyle. Some examples of issues that benefit from nutrition counseling include:

  • Obesity
  • Eating disorders
  • High cholesterol
  • High blood pressure
  • Food allergies
  • Kidney disease
  • Digestive disorders, such as irritable bowel syndrome
  • Cancer
  • Pregnancy or lactation
  • Participation in competitive sports

During a nutrition counseling appointment, the provider -- doctor, nutritionist, or dietitian -- typically will look over a the patient's medical history and talk to them about their current diet, their goals, what kinds of food they like, and any problems that they are currently struggling with in their health or diet. Then the specialist will help the patient set food goals and create a customized plan to help them meet their nutritional needs. Nutrition specialists may also offer classes, workshops, cooking demonstrations, and more. Their role is not to lecture the patient about what one should be eating, but to offer education and resources to make eating healthy foods easier.

Noteworthy Medicare Patient Procedures Performed by Dr. Jeffrey N. Posner, MD in 2023

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

Top 5%

By Volume:

creatinine urine test
lab tests

By Affordability:

creatinine test
creatinine urine test
kidney function tests
urinalysis

In 2023, among providers in related specialties within Maryland, Dr. Jeffrey N. Posner, MD performed more creatinine urine test, and lab tests procedures for Medicare patients than 95% of them and he also had a list price for creatinine test, creatinine urine test, kidney function tests, and urinalysis that was lower than the list prices billed to Medicare by 95% of them. Actual amounts paid by patients can vary widely depending on a number of factors, including insurance coverage. A lower list price, however, might mean lower fees when paying without insurance.

Top 25%

By Volume:

dialysis
flu shot

By Affordability:

flu shot
flu vaccine
lab tests
urine tests

In 2012, among providers in related specialties within Maryland, Dr. Jeffrey N. Posner, MD performed more dialysis, and flu shot procedures for Medicare patients than 75% of them and he also had a list price for flu shot, flu vaccine, lab tests, and urine tests that was lower than the list prices billed to Medicare by 75% of them. Actual amounts paid by patients can vary widely depending on a number of factors, including insurance coverage. A lower list price, however, might mean lower fees when paying without insurance.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Jeffrey N. Posner, MD treated as a nephrologist in Lutherville Timonium, MD during 2012 were hospital care, inpatient care, lab tests and dialysis.

Volume of procedures performed by Dr. Jeffrey N. Posner, MD for Medicare patients.

dialysis 325
doctor visit 742
hemofiltration 37
hospital care 910
inpatient care 910
lab tests 343

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Jeffrey N. Posner, MD treated as a nephrologist in Lutherville Timonium, MD during 2013 were hospital care, inpatient care, lab tests and dialysis.

Volume of procedures performed by Dr. Jeffrey N. Posner, MD for Medicare patients.

dialysis 242
doctor visit 810
hospital care 940
inpatient care 940
lab tests 737
preventive care 31
vaccines 31

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Jeffrey N. Posner, MD.

Gender
Male 393
Female 387
Ethnicity
Non-Hispanic White 485
Black 278
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 259
From 75 to 84 257
85 and over 135
Less than 65 129

Conditions of Medicare patients treated by Dr. Jeffrey N. Posner, MD in 2013

Hypertension 75
High Cholesterol 74
Stroke 11
Ischemic Heart Disease 60
Depression 26
Chronic Kidney Disease 75
Asthma 10
Osteoperosis 9
Atrial Fibrilation 19
Heart Failure 46
Chronic Obstructive Pulmonary Disease 24
Diabetes 57
Dementia 18
Cancer 17

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Jeffrey N. Posner, MD treated as a nephrologist in Lutherville Timonium, MD during 2014 were hospital care, inpatient care, lab tests and dialysis.

Volume of procedures performed by Dr. Jeffrey N. Posner, MD for Medicare patients.

dialysis 261
doctor visit 778
hospital care 964
inpatient care 964
lab tests 864
preventive care 15
vaccines 15

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Jeffrey N. Posner, MD.

Gender
Male 435
Female 402
Ethnicity
Non-Hispanic White 518
Black 293
Hispanic 0
Asian 0
Other 15
Native American 0
Age
From 65 to 74 270
From 75 to 84 258
85 and over 174
Less than 65 135

Conditions of Medicare patients treated by Dr. Jeffrey N. Posner, MD in 2014

Hypertension 75
High Cholesterol 75
Stroke 11
Ischemic Heart Disease 58
Depression 26
Chronic Kidney Disease 75
Asthma 10
Osteoperosis 7
Atrial Fibrilation 23
Heart Failure 50
Chronic Obstructive Pulmonary Disease 21
Diabetes 55
Dementia 17
Cancer 15

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Jeffrey N. Posner, MD treated as a nephrologist in Lutherville Timonium, MD during 2015 were hospital care, inpatient care, lab tests and dialysis.

Volume of procedures performed by Dr. Jeffrey N. Posner, MD for Medicare patients.

dialysis 302
doctor visit 799
hospital care 938
inpatient care 938
lab tests 703
preventive care 19
vaccines 19

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Jeffrey N. Posner, MD.

Gender
Male 934
Female 816
Ethnicity
Non-Hispanic White 1084
Black 622
Hispanic 0
Asian 0
Other 22
Native American 0
Age
From 65 to 74 548
From 75 to 84 584
85 and over 308
Less than 65 310

Conditions of Medicare patients treated by Dr. Jeffrey N. Posner, MD in 2015

Hypertension 75
High Cholesterol 75
Stroke 11
Ischemic Heart Disease 62
Depression 31
Chronic Kidney Disease 75
Asthma 19
Osteoperosis 8
Atrial Fibrilation 22
Heart Failure 51
Chronic Obstructive Pulmonary Disease 24
Diabetes 59
Dementia 18
Cancer 13

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Jeffrey N. Posner, MD treated as a nephrologist in Lutherville Timonium, MD during 2016 were hospital care, inpatient care, lab tests and dialysis.

Volume of procedures performed by Dr. Jeffrey N. Posner, MD for Medicare patients.

dialysis 321
doctor visit 772
hemofiltration 34
hospital care 964
inpatient care 964
lab tests 724
preventive care 23
vaccines 23

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Jeffrey N. Posner, MD.

Gender
Male 441
Female 392
Ethnicity
Non-Hispanic White 499
Black 307
Hispanic 0
Asian 0
Other 11
Native American 0
Age
From 65 to 74 282
From 75 to 84 275
85 and over 133
Less than 65 143

Conditions of Medicare patients treated by Dr. Jeffrey N. Posner, MD in 2016

Hypertension 75
High Cholesterol 75
Stroke 9
Ischemic Heart Disease 56
Depression 30
Chronic Kidney Disease 75
Asthma 26
Osteoperosis 9
Atrial Fibrilation 18
Heart Failure 47
Chronic Obstructive Pulmonary Disease 23
Diabetes 58
Dementia 20
Cancer 16

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Jeffrey N. Posner, MD treated as a nephrologist in Lutherville Timonium, MD during 2017 were lab tests, hospital care, inpatient care and dialysis.

Volume of procedures performed by Dr. Jeffrey N. Posner, MD for Medicare patients.

dialysis 316
doctor visit 768
hemofiltration 62
hospital care 826
inpatient care 826
lab tests 835

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Jeffrey N. Posner, MD.

Gender
Male 480
Female 399
Ethnicity
Non-Hispanic White 520
Black 321
Hispanic 0
Asian 0
Other 16
Native American 0
Age
From 65 to 74 297
From 75 to 84 298
85 and over 132
Less than 65 152

Conditions of Medicare patients treated by Dr. Jeffrey N. Posner, MD in 2017

Hypertension 75
High Cholesterol 73
Stroke 11
Ischemic Heart Disease 62
Depression 28
Chronic Kidney Disease 75
Asthma 9
Osteoperosis 9
Atrial Fibrilation 20
Heart Failure 49
Chronic Obstructive Pulmonary Disease 22
Diabetes 61
Dementia 21
Cancer 14

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Jeffrey N. Posner, MD treated as a nephrologist in Lutherville Timonium, MD during 2018 were hospital care, inpatient care, lab tests and dialysis.

Volume of procedures performed by Dr. Jeffrey N. Posner, MD for Medicare patients.

dialysis 297
doctor visit 624
hemofiltration 44
hospital care 952
inpatient care 952
lab tests 746
preventive care 28
vaccines 28

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Jeffrey N. Posner, MD.

Gender
Male 465
Female 433
Ethnicity
Non-Hispanic White 495
Black 361
Hispanic 0
Asian 0
Other 20
Native American 0
Age
From 65 to 74 289
From 75 to 84 271
85 and over 165
Less than 65 173

Conditions of Medicare patients treated by Dr. Jeffrey N. Posner, MD in 2018

Hypertension 75
High Cholesterol 75
Stroke 11
Ischemic Heart Disease 61
Depression 30
Chronic Kidney Disease 75
Asthma 9
Osteoperosis 11
Atrial Fibrilation 20
Heart Failure 47
Chronic Obstructive Pulmonary Disease 22
Diabetes 60
Dementia 22
Cancer 15

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Jeffrey N. Posner, MD treated as a nephrologist in Lutherville Timonium, MD during 2019 were hospital care, inpatient care, lab tests and dialysis.

Volume of procedures performed by Dr. Jeffrey N. Posner, MD for Medicare patients.

dialysis 343
doctor visit 689
hemofiltration 37
hospital care 866
inpatient care 866
lab tests 844
preventive care 13
vaccines 13

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Jeffrey N. Posner, MD.

Gender
Male 492
Female 412
Ethnicity
Non-Hispanic White 506
Black 353
Hispanic 0
Asian 0
Other 21
Native American 0
Age
From 65 to 74 293
From 75 to 84 284
85 and over 161
Less than 65 166

Conditions of Medicare patients treated by Dr. Jeffrey N. Posner, MD in 2019

Hypertension 75
High Cholesterol 75
Stroke 13
Ischemic Heart Disease 59
Depression 31
Chronic Kidney Disease 75
Asthma 11
Osteoperosis 9
Atrial Fibrilation 22
Heart Failure 52
Chronic Obstructive Pulmonary Disease 24
Diabetes 60
Dementia 20
Cancer 14

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Jeffrey N. Posner, MD treated as a nephrologist in Lutherville Timonium, MD during 2020 were hospital care, inpatient care, lab tests and dialysis.

Volume of procedures performed by Dr. Jeffrey N. Posner, MD for Medicare patients.

dialysis 214
doctor visit 559
hemofiltration 26
hospital care 741
inpatient care 741
lab tests 571

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Jeffrey N. Posner, MD.

Gender
Male 437
Female 376
Ethnicity
Non-Hispanic White 453
Black 318
Hispanic 0
Asian 0
Other 21
Native American 0
Age
From 65 to 74 283
From 75 to 84 256
85 and over 127
Less than 65 147

Conditions of Medicare patients treated by Dr. Jeffrey N. Posner, MD in 2020

Hypertension 75
High Cholesterol 75
Stroke 11
Ischemic Heart Disease 58
Depression 30
Chronic Kidney Disease 75
Asthma 8
Osteoperosis 9
Atrial Fibrilation 21
Heart Failure 46
Chronic Obstructive Pulmonary Disease 18
Diabetes 60
Dementia 23
Cancer 14

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Jeffrey N. Posner, MD treated as a nephrologist in Lutherville Timonium, MD during 2021 were hospital care, inpatient care, lab tests and dialysis.

Volume of procedures performed by Dr. Jeffrey N. Posner, MD for Medicare patients.

dialysis 278
doctor visit 483
hemofiltration 36
hospital care 774
inpatient care 774
lab tests 590
preventive care 15
vaccines 15

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Jeffrey N. Posner, MD.

Gender
Male 406
Female 365
Ethnicity
Non-Hispanic White 433
Black 294
Hispanic 0
Asian 0
Other 25
Native American 0
Age
From 65 to 74 250
From 75 to 84 270
85 and over 108
Less than 65 143

Conditions of Medicare patients treated by Dr. Jeffrey N. Posner, MD in 2021

Hypertension 75
High Cholesterol 75
Stroke 12
Ischemic Heart Disease 61
Depression 30
Chronic Kidney Disease 75
Asthma 9
Osteoperosis 10
Atrial Fibrilation 20
Heart Failure 51
Chronic Obstructive Pulmonary Disease 20
Diabetes 61
Dementia 22
Cancer 15

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Jeffrey N. Posner, MD treated as a nephrologist in Lutherville Timonium, MD during 2022 were lab tests, hospital care, inpatient care and dialysis.

Volume of procedures performed by Dr. Jeffrey N. Posner, MD for Medicare patients.

dialysis 300
doctor visit 582
hemofiltration 44
hospital care 646
inpatient care 646
lab tests 760

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Jeffrey N. Posner, MD.

Gender
Male 403
Female 330
Ethnicity
Non-Hispanic White 421
Black 267
Hispanic 0
Asian 0
Other 31
Native American 0
Age
From 65 to 74 248
From 75 to 84 275
85 and over 112
Less than 65 98

Conditions of Medicare patients treated by Dr. Jeffrey N. Posner, MD in 2022

Hypertension 75
High Cholesterol 75
Stroke 18
Ischemic Heart Disease 48
Depression 29
Chronic Kidney Disease 75
Asthma 12
Osteoperosis 13
Atrial Fibrilation 33
Heart Failure 42
Chronic Obstructive Pulmonary Disease 22
Diabetes 58
Dementia 12
Cancer 22

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Jeffrey N. Posner, MD for Medicare patients.

The highest averages for the top procedures that Dr. Jeffrey N. Posner, MD treated as a nephrologist in Lutherville Timonium, MD were hospital care, inpatient care, lab tests and dialysis.

dialysis 290
doctor visit 691
hemofiltration 40
hospital care 865
inpatient care 865
lab tests 701
preventive care 20
vaccines 20

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Jeffrey N. Posner, MD.

Gender
Female 392
Male 444
Ethnicity
Black / African American 310
Asian / Pacific Islander 0
Non-Hispanic White 492
Hispanic 0
Native American / Alaskan Native 0
Other 16
Age
85 and over 141
75 to 84 275
Less than 65 145
65 to 74 274

Average of Total of Conditions of Medicare patients treated by Dr. Jeffrey N. Posner, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Jeffrey N. Posner, MD treated were chronic kidney disease, high cholesterol, hypertension and diabetes.

Hypertension 68
High Cholesterol 67
Stroke 10
Ischemic Heart Disease 53
Depression 26
Chronic Kidney Disease 68
Asthma 11
Osteoporosis 8
Heart Failure 43
Chronic Obstructive Pulmonary Disease 20
Diabetes 53
Atrial Fibrillation 19
Dementia 17
Cancer 14

Education & Training

Dr. Jeffrey N. Posner, MD graduated from Stony Brook University Medical Center, School of Medicine in 1980. He completed residency at University of Maryland Medical Center. He is certified by the American Board of Internal Medicine - Nephrology, American Board of Internal Medicine - Internal Medicine and has a state license in Maryland.

Medical School: Stony Brook University Medical Center, School of Medicine (1980)

Residency: University of Maryland Medical Center (1983)

Board Certification: American Board of Internal Medicine - Nephrology, American Board of Internal Medicine - Internal Medicine (1986)

Licensed In: Maryland

Affiliations & Hospitals

Dr. Jeffrey N. Posner, MD is associated with these hospitals and organizations:

University of Maryland Medical System
MedStar Franklin Square Medical Center
GBMC Healthcare
MedStar Health
MedStar Union Memorial Hospital

Ratings & Reviews

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General Payments

These charts describe general payments received by Dr. Jeffrey N. Posner, MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

Payments by Company
Baxter Healthcare $383 Renal - Non Product Related
$237 		Baxter
$101 		Gambro - Accute
$45
Otsuka America Pharmaceutical, Inc. $313 JYNARQUE
$217 		SAMSCA
$96
AstraZeneca Pharmaceuticals LP $211 LOKELMA
$211
Genentech USA, Inc. $124
$124
Alexion Pharmaceuticals, Inc. $114 SOLIRIS
$114
Other $250 DALIRESP
$105 		Auryxia
$58 		ACTHAR
$41 		System One
$20 		Velphoro
$12 		Other
$13
Types of Payments
Food and Beverage $1,287
Education $108

Biography

Dr. Jeffrey Posner's specialty is adult nephrology. He obtained his medical school training at Stony Brook University Medical Center, School of Medicine and performed his residency at the University of Maryland Medical Center. Dr. Posner's clinical interests include laser lithotripsy, renal artery thrombosis, and type 2 diabetes. He is conversant in Russian. He is affiliated with the University of Maryland Medical System, GBMC Healthcare, and MedStar Franklin Square Medical Center.

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