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Dr. John Ian McNeil, MD

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Specializes in: Adult Infectious Disease

Howard University College of Medicine (1989)

Professional interests include: immunization (preventive vaccines), bone marrow biopsy, malaria, and more.

12126 Heritage Park Circle
Silver Spring, MD 20906

(301) 460-6664

Dr. John Ian McNeil, MD is an adult infectious disease specialist in Silver Spring, MD specializing in adult infectious disease. He graduated from Howard University College of Medicine in 1989 and has 37 years of experience. Dr. John Ian McNeil, MD is affiliated with MedStar Montgomery Medical Center, Holy Cross Health and MedStar Health.

Office Locations

Holy Cross Health

12126 Heritage Park Circle
Silver Spring, MD 20906

(301) 460-6664

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18101 Prince Philip Drive
Olney, MD 20832

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Some issues Dr. John Ian McNeil, MD can help you with:

Urinary Tract Infection (UTI)

A urinary tract infection, or UTI, happens when bacteria enter the body through the opening where urine is normally released. The bacteria infect the lining of the urethra and bladder, turning them red and inflamed. This causes pain in the abdomen or pelvic area, a burning sensation during urination, a sense of urgency about going to the bathroom, frequent urination, and urine that smells bad and looks cloudy, or even contains traces of blood. If the urinary tract infection is severe, it may travel all the way to the kidneys, a more serious kind of UTI called pyelonephritis. Patients with this kidney infection might have blood in their urine, feel back pain, and develop a fever.

Urinary tract infections are extremely common: 12% of all men and 40-50% of all women will have a urinary tract infection during their lifetime. They are more common in women because women have shorter urethras, so bacteria have a shorter distance to travel from the outside of the body to the bladder and cause an infection. Some people also have urethras that are an unusual shape or have an obstruction in the urethra that makes getting a UTI more likely. Also, certain chronic illnesses like diabetes weaken the immune system, so any bacteria in the body are more likely to cause an infection.

A urinary tract infection can be diagnosed very quickly by a doctor. A sample of urine can be examined under a microscope for the presence of bacteria or white blood cells. There are also diagnostic strips that can be used to test a urine sample without the need for a microscope. Once a diagnosis is made, treatment is a course of oral antibiotics, and most patients feel better within just a few days. There are some things that patients can do themselves to help reduce the risk of getting a urinary tract infection in the future. Stay well hydrated, wipe from front to back after going to the bathroom, wear breathable cotton undergarments, and don't hold it in when patients feel the urge to go.

Noteworthy Medicare Patient Procedures Performed by Dr. John Ian McNeil, MD in 2023

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

Top 5%

By Volume:

inpatient hospital care

By Affordability:

hospital care

inpatient care

inpatient hospital care

In 2023, among providers in related specialties within Maryland, Dr. John Ian McNeil, MD performed more inpatient hospital care (for patient admitted to hospital) procedures for Medicare patients than 95% of them and he also had a list price for hospital care, inpatient care, and inpatient hospital care (for patient admitted to hospital) 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 Affordability:

In 2012, Dr. John Ian McNeil, MD had a list price for flu shot, flu vaccine, immunization (preventive vaccines), and vaccines that was lower than the list prices billed to Medicare by 75% of providers in related specialties within Maryland. 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. John Ian McNeil, MD treated as an adult infectious disease specialist in Silver Spring, MD during 2012 were hospital care, inpatient care, blood draw and preventive care.

Volume of procedures performed by Dr. John Ian McNeil, MD for Medicare patients.

blood draw	172
doctor visit	516
hospital care	2482
inpatient care	2482
preventive care	17
vaccines	17

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. John Ian McNeil, MD treated as an adult infectious disease specialist in Silver Spring, MD during 2013 were hospital care, inpatient care, blood draw and preventive care.

Volume of procedures performed by Dr. John Ian McNeil, MD for Medicare patients.

blood draw	190
doctor visit	654
hospital care	2188
inpatient care	2188
lab tests	18
preventive care	28
vaccines	28

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. John Ian McNeil, MD.

**Gender**
Male	394
Female	460

**Ethnicity**
Non-Hispanic White	572
Black	196
Hispanic	33
Asian	34
Other	0
Native American	0

**Age**
From 65 to 74	232
From 75 to 84	260
85 and over	245
Less than 65	117

Conditions of Medicare patients treated by Dr. John Ian McNeil, MD in 2013

Hypertension	75
High Cholesterol	69
Stroke	11
Ischemic Heart Disease	46
Depression	30
Chronic Kidney Disease	49
Asthma	10
Osteoperosis	14
Atrial Fibrilation	21
Heart Failure	40
Chronic Obstructive Pulmonary Disease	23
Diabetes	44
Dementia	33
Cancer	17

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. John Ian McNeil, MD treated as an adult infectious disease specialist in Silver Spring, MD during 2014 were hospital care, inpatient care, blood draw and preventive care.

Volume of procedures performed by Dr. John Ian McNeil, MD for Medicare patients.

blood draw	159
doctor visit	640
hospital care	2443
inpatient care	2443
preventive care	39
vaccines	39

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. John Ian McNeil, MD.

**Gender**
Male	464
Female	550

**Ethnicity**
Non-Hispanic White	645
Black	244
Hispanic	63
Asian	38
Other	24
Native American	0

**Age**
From 65 to 74	262
From 75 to 84	290
85 and over	296
Less than 65	166

Conditions of Medicare patients treated by Dr. John Ian McNeil, MD in 2014

Hypertension	75
High Cholesterol	66
Stroke	12
Ischemic Heart Disease	44
Depression	32
Chronic Kidney Disease	51
Asthma	10
Osteoperosis	12
Atrial Fibrilation	18
Heart Failure	39
Chronic Obstructive Pulmonary Disease	23
Diabetes	46
Dementia	35
Cancer	17

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. John Ian McNeil, MD treated as an adult infectious disease specialist in Silver Spring, MD during 2015 were hospital care, inpatient care and blood draw.

Volume of procedures performed by Dr. John Ian McNeil, MD for Medicare patients.

blood draw	131
doctor visit	499
hospital care	2516
inpatient care	2516

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. John Ian McNeil, MD.

**Gender**
Male	916
Female	1000

**Ethnicity**
Non-Hispanic White	1184
Black	490
Hispanic	112
Asian	82
Other	48
Native American	0

**Age**
From 65 to 74	510
From 75 to 84	562
85 and over	532
Less than 65	312

Conditions of Medicare patients treated by Dr. John Ian McNeil, MD in 2015

Hypertension	75
High Cholesterol	68
Stroke	13
Ischemic Heart Disease	46
Depression	35
Chronic Kidney Disease	56
Asthma	18
Osteoperosis	12
Atrial Fibrilation	25
Heart Failure	39
Chronic Obstructive Pulmonary Disease	23
Diabetes	51
Dementia	35
Cancer	15

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. John Ian McNeil, MD treated as an adult infectious disease specialist in Silver Spring, MD during 2016 were hospital care, inpatient care, blood draw and preventive care.

Volume of procedures performed by Dr. John Ian McNeil, MD for Medicare patients.

blood draw	165
doctor visit	588
hospital care	2414
inpatient care	2414
preventive care	39
vaccines	39

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. John Ian McNeil, MD.

**Gender**
Male	453
Female	499

**Ethnicity**
Non-Hispanic White	573
Black	254
Hispanic	55
Asian	48
Other	0
Native American	0

**Age**
From 65 to 74	273
From 75 to 84	302
85 and over	239
Less than 65	138

Conditions of Medicare patients treated by Dr. John Ian McNeil, MD in 2016

Hypertension	75
High Cholesterol	72
Stroke	14
Ischemic Heart Disease	49
Depression	38
Chronic Kidney Disease	58
Asthma	26
Osteoperosis	10
Atrial Fibrilation	24
Heart Failure	39
Chronic Obstructive Pulmonary Disease	23
Diabetes	55
Dementia	35
Cancer	15

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. John Ian McNeil, MD treated as an adult infectious disease specialist in Silver Spring, MD during 2017 were hospital care, inpatient care, blood draw and nursing home care.

Volume of procedures performed by Dr. John Ian McNeil, MD for Medicare patients.

blood draw	64
doctor visit	654
hospital care	3039
inpatient care	3039
nursing home care	48
preventive care	43
vaccines	43

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. John Ian McNeil, MD.

**Gender**
Male	521
Female	626

**Ethnicity**
Non-Hispanic White	707
Black	286
Hispanic	70
Asian	54
Other	30
Native American	0

**Age**
From 65 to 74	349
From 75 to 84	343
85 and over	299
Less than 65	156

Conditions of Medicare patients treated by Dr. John Ian McNeil, MD in 2017

Hypertension	75
High Cholesterol	65
Stroke	14
Ischemic Heart Disease	51
Depression	42
Chronic Kidney Disease	62
Asthma	11
Osteoperosis	11
Atrial Fibrilation	24
Heart Failure	41
Chronic Obstructive Pulmonary Disease	24
Diabetes	53
Dementia	38
Cancer	16

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. John Ian McNeil, MD treated as an adult infectious disease specialist in Silver Spring, MD during 2018 were hospital care, inpatient care and nursing home care.

Volume of procedures performed by Dr. John Ian McNeil, MD for Medicare patients.

doctor visit	611
hospital care	2608
inpatient care	2608
nursing home care	73

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. John Ian McNeil, MD.

**Gender**
Male	509
Female	581

**Ethnicity**
Non-Hispanic White	699
Black	259
Hispanic	68
Asian	43
Other	21
Native American	0

**Age**
From 65 to 74	309
From 75 to 84	307
85 and over	336
Less than 65	138

Conditions of Medicare patients treated by Dr. John Ian McNeil, MD in 2018

Hypertension	75
High Cholesterol	71
Stroke	15
Ischemic Heart Disease	48
Depression	41
Chronic Kidney Disease	61
Asthma	9
Osteoperosis	11
Atrial Fibrilation	23
Heart Failure	35
Chronic Obstructive Pulmonary Disease	22
Diabetes	47
Dementia	37
Cancer	16

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. John Ian McNeil, MD treated as an adult infectious disease specialist in Silver Spring, MD during 2019 were hospital care, inpatient care and nursing home care.

Volume of procedures performed by Dr. John Ian McNeil, MD for Medicare patients.

doctor visit	916
hospital care	2716
inpatient care	2716
nursing home care	57

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. John Ian McNeil, MD.

**Gender**
Male	532
Female	603

**Ethnicity**
Non-Hispanic White	671
Black	269
Hispanic	96
Asian	67
Other	32
Native American	0

**Age**
From 65 to 74	327
From 75 to 84	354
85 and over	316
Less than 65	138

Conditions of Medicare patients treated by Dr. John Ian McNeil, MD in 2019

Hypertension	75
High Cholesterol	73
Stroke	14
Ischemic Heart Disease	46
Depression	43
Chronic Kidney Disease	60
Asthma	11
Osteoperosis	13
Atrial Fibrilation	22
Heart Failure	36
Chronic Obstructive Pulmonary Disease	20
Diabetes	45
Dementia	37
Cancer	15

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. John Ian McNeil, MD treated as an adult infectious disease specialist in Silver Spring, MD during 2020 were hospital care, inpatient care and outpatient care.

Volume of procedures performed by Dr. John Ian McNeil, MD for Medicare patients.

doctor visit	660
hospital care	2656
inpatient care	2621
outpatient care	35

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. John Ian McNeil, MD.

**Gender**
Male	525
Female	556

**Ethnicity**
Non-Hispanic White	617
Black	282
Hispanic	78
Asian	67
Other	37
Native American	0

**Age**
From 65 to 74	333
From 75 to 84	348
85 and over	274
Less than 65	126

Conditions of Medicare patients treated by Dr. John Ian McNeil, MD in 2020

Hypertension	75
High Cholesterol	75
Stroke	13
Ischemic Heart Disease	49
Depression	39
Chronic Kidney Disease	60
Asthma	10
Osteoperosis	11
Atrial Fibrilation	16
Heart Failure	32
Chronic Obstructive Pulmonary Disease	17
Diabetes	47
Dementia	38
Cancer	14

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. John Ian McNeil, MD treated as an adult infectious disease specialist in Silver Spring, MD during 2021 were hospital care, inpatient care and outpatient care.

Volume of procedures performed by Dr. John Ian McNeil, MD for Medicare patients.

doctor visit	828
hospital care	2687
inpatient care	2623
outpatient care	64

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. John Ian McNeil, MD.

**Gender**
Male	509
Female	610

**Ethnicity**
Non-Hispanic White	662
Black	272
Hispanic	88
Asian	58
Other	0
Native American	0

**Age**
From 65 to 74	329
From 75 to 84	375
85 and over	278
Less than 65	137

Conditions of Medicare patients treated by Dr. John Ian McNeil, MD in 2021

Hypertension	75
High Cholesterol	73
Stroke	11
Ischemic Heart Disease	51
Depression	39
Chronic Kidney Disease	56
Asthma	10
Osteoperosis	12
Atrial Fibrilation	17
Heart Failure	33
Chronic Obstructive Pulmonary Disease	18
Diabetes	44
Dementia	35
Cancer	16

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. John Ian McNeil, MD treated as an adult infectious disease specialist in Silver Spring, MD during 2022 were hospital care and inpatient care.

Volume of procedures performed by Dr. John Ian McNeil, MD for Medicare patients.

doctor visit	963
hospital care	2481
inpatient care	2481

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. John Ian McNeil, MD.

**Gender**
Male	546
Female	604

**Ethnicity**
Non-Hispanic White	689
Black	289
Hispanic	78
Asian	51
Other	0
Native American	0

**Age**
From 65 to 74	356
From 75 to 84	413
85 and over	271
Less than 65	110

Conditions of Medicare patients treated by Dr. John Ian McNeil, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	21
Ischemic Heart Disease	39
Depression	38
Chronic Kidney Disease	43
Asthma	12
Osteoperosis	17
Atrial Fibrilation	31
Heart Failure	33
Chronic Obstructive Pulmonary Disease	21
Diabetes	43
Dementia	30
Cancer	19

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. John Ian McNeil, MD for Medicare patients.

The highest averages for the top procedures that Dr. John Ian McNeil, MD treated as an adult infectious disease specialist in Silver Spring, MD were hospital care, inpatient care, blood draw and nursing home care.

blood draw	146
doctor visit	684
hospital care	2566
inpatient care	2557
lab tests	18
nursing home care	59
outpatient care	49
preventive care	33
vaccines	33

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. John Ian McNeil, MD.

**Gender**
Male	488
Female	553

**Ethnicity**
Black / African American	258
Asian / Pacific Islander	49
Non-Hispanic White	638
Native American / Alaskan Native	0
Hispanic	67
Other	17

**Age**
75 to 84	323
85 and over	280
Less than 65	139
65 to 74	298

Average of Total of Conditions of Medicare patients treated by Dr. John Ian McNeil, MD From 2012 - 2022

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

Hypertension	68
High Cholesterol	64
Stroke	12
Ischemic Heart Disease	42
Depression	34
Chronic Kidney Disease	50
Asthma	11
Osteoporosis	11
Heart Failure	33
Chronic Obstructive Pulmonary Disease	19
Diabetes	43
Atrial Fibrillation	20
Dementia	32
Cancer	14

Education & Training

Dr. John Ian McNeil, MD graduated from Howard University College of Medicine in 1989. He completed residency at Washington Hospital Center. He is certified by the Internal Medicine, American Board of Internal Medicine and has a state license in Maryland.

Medical School: Howard University College of Medicine (1989)

Residency: Washington Hospital Center (1992)

Board Certification: Internal Medicine, American Board of Internal Medicine (1996)

Licensed In: Maryland

Affiliations & Hospitals

Dr. John Ian McNeil, MD is associated with these hospitals and organizations:

MedStar Montgomery Medical Center

Holy Cross Health

MedStar Health

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General Payments

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

**Payments by Company**
Gilead Sciences, Inc.	$697 $697
Janssen Products, LP	$480 PREZCOBIX $280	PREZISTA $100	Symtuza $100
Janssen Biotech, Inc.	$150 Symtuza $47	Odefsey $38	JULUCA $36	COMPLERA $30
Janssen Pharmaceuticals, Inc	$101 INVOKANA $81	XARELTO $20
Novo Nordisk Inc	$58 Victoza $41	NovoLog $17
Other	$203 ZERBAXA $46	CABENUVA $30	Anti-Bacterial $27	BYSTOLIC $26	Symfi Lo $22	Other $53

**Types of Payments**
Food and Beverage	$1,301
Education	$388

Biography

Dr. John McNeil is an adult infectious disease specialist in Olney, MD and Silver Spring, MD. His areas of expertise include the following: osteomyelitis, penile disorders, and histoplasmosis. He graduated from Howard University College of Medicine and then he performed his residency at Washington Hospital Center. Dr. McNeil's hospital/clinic affiliations include Holy Cross Health and MedStar Montgomery Medical Center. He has an open panel in Silver Spring, MD according to Holy Cross Health.