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Dr. John Gambrill JR., MD

(Dr. John Gambrill Jr., MD)

(No ratings)

Specializes in: Ophthalmology (Eye Disease)

University of Maryland School of Medicine

1838 Greenetree Road Suite 250
Baltimore, MD 21208

(410) 486-7264

Dr. John Gambrill JR., MD is an ophthalmologist in Baltimore, MD specializing in ophthalmology (eye disease). He graduated from University of Maryland School of Medicine. Dr. John Gambrill JR., MD is affiliated with GBMC Healthcare.

Office Locations

1838 Greenetree Road Suite 250
Baltimore, MD 21208

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715 Maiden Choice Lane
Catonsville, MD 21228

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Noteworthy Medicare Patient Procedures Performed by Dr. John Gambrill JR., MD in 2023

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

Top 25%

By Affordability:

eye procedures

In 2012, Dr. John Gambrill JR., MD had a list price for eye procedures 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 Gambrill JR., MD treated as an ophthalmologist in Baltimore, MD during 2012 were eye procedures and ultrasound (sonogram).

Volume of procedures performed by Dr. John Gambrill JR., MD for Medicare patients.

doctor visit	33
eye procedures	2031
ultrasound (sonogram)	134

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. John Gambrill JR., MD treated as an ophthalmologist in Baltimore, MD during 2013 were eye procedures and ultrasound (sonogram).

Volume of procedures performed by Dr. John Gambrill JR., MD for Medicare patients.

doctor visit	221
eye procedures	1805
ultrasound (sonogram)	105

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. John Gambrill JR., MD.

**Gender**
Male	268
Female	561

**Ethnicity**
Non-Hispanic White	197
Black	611
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	413
From 75 to 84	283
85 and over	89
Less than 65	44

Conditions of Medicare patients treated by Dr. John Gambrill JR., MD in 2013

Hypertension	75
High Cholesterol	70
Stroke	4
Ischemic Heart Disease	32
Depression	10
Chronic Kidney Disease	22
Asthma	8
Osteoperosis	5
Atrial Fibrilation	7
Heart Failure	13
Chronic Obstructive Pulmonary Disease	7
Diabetes	51
Dementia	9
Cancer	14

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. John Gambrill JR., MD treated as an ophthalmologist in Baltimore, MD during 2014 were eye procedures and ultrasound (sonogram).

Volume of procedures performed by Dr. John Gambrill JR., MD for Medicare patients.

doctor visit	131
eye procedures	1897
ultrasound (sonogram)	72

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. John Gambrill JR., MD.

**Gender**
Male	276
Female	550

**Ethnicity**
Non-Hispanic White	190
Black	615
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	415
From 75 to 84	280
85 and over	87
Less than 65	44

Conditions of Medicare patients treated by Dr. John Gambrill JR., MD in 2014

Hypertension	75
High Cholesterol	67
Stroke	4
Ischemic Heart Disease	31
Depression	11
Chronic Kidney Disease	22
Asthma	7
Osteoperosis	5
Atrial Fibrilation	6
Heart Failure	12
Chronic Obstructive Pulmonary Disease	8
Diabetes	52
Dementia	8
Cancer	13

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. John Gambrill JR., MD treated as an ophthalmologist in Baltimore, MD during 2015 were eye procedures and ultrasound (sonogram).

Volume of procedures performed by Dr. John Gambrill JR., MD for Medicare patients.

doctor visit	33
eye procedures	1894
ultrasound (sonogram)	34

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. John Gambrill JR., MD.

**Gender**
Male	568
Female	1180

**Ethnicity**
Non-Hispanic White	350
Black	1356
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	890
From 75 to 84	574
85 and over	200
Less than 65	84

Conditions of Medicare patients treated by Dr. John Gambrill JR., MD in 2015

Hypertension	75
High Cholesterol	67
Stroke	4
Ischemic Heart Disease	29
Depression	12
Chronic Kidney Disease	24
Asthma	10
Osteoperosis	5
Atrial Fibrilation	6
Heart Failure	12
Chronic Obstructive Pulmonary Disease	8
Diabetes	51
Dementia	9
Cancer	13

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. John Gambrill JR., MD treated as an ophthalmologist in Baltimore, MD during 2016 were eye procedures and ultrasound (sonogram).

Volume of procedures performed by Dr. John Gambrill JR., MD for Medicare patients.

eye procedures	1863
ultrasound (sonogram)	52

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. John Gambrill JR., MD.

**Gender**
Male	281
Female	603

**Ethnicity**
Non-Hispanic White	185
Black	676
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	468
From 75 to 84	271
85 and over	103
Less than 65	42

Conditions of Medicare patients treated by Dr. John Gambrill JR., MD in 2016

Hypertension	75
High Cholesterol	64
Stroke	6
Ischemic Heart Disease	26
Depression	11
Chronic Kidney Disease	30
Asthma	13
Osteoperosis	6
Atrial Fibrilation	7
Heart Failure	11
Chronic Obstructive Pulmonary Disease	8
Diabetes	49
Dementia	9
Cancer	14

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. John Gambrill JR., MD treated as an ophthalmologist in Baltimore, MD during 2017 were eye procedures and ultrasound (sonogram).

Volume of procedures performed by Dr. John Gambrill JR., MD for Medicare patients.

eye procedures	1823
ultrasound (sonogram)	41

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. John Gambrill JR., MD.

**Gender**
Male	275
Female	607

**Ethnicity**
Non-Hispanic White	180
Black	677
Hispanic	0
Asian	12
Other	0
Native American	0

**Age**
From 65 to 74	453
From 75 to 84	278
85 and over	104
Less than 65	47

Conditions of Medicare patients treated by Dr. John Gambrill JR., MD in 2017

Hypertension	75
High Cholesterol	60
Stroke	5
Ischemic Heart Disease	24
Depression	14
Chronic Kidney Disease	32
Asthma	9
Osteoperosis	6
Atrial Fibrilation	6
Heart Failure	10
Chronic Obstructive Pulmonary Disease	6
Diabetes	49
Dementia	10
Cancer	15

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. John Gambrill JR., MD treated as an ophthalmologist in Baltimore, MD during 2018 were eye procedures.

Volume of procedures performed by Dr. John Gambrill JR., MD for Medicare patients.

eye procedures	1658

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. John Gambrill JR., MD.

**Gender**
Male	268
Female	589

**Ethnicity**
Non-Hispanic White	170
Black	660
Hispanic	0
Asian	11
Other	0
Native American	0

**Age**
From 65 to 74	429
From 75 to 84	287
85 and over	96
Less than 65	45

Conditions of Medicare patients treated by Dr. John Gambrill JR., MD in 2018

Hypertension	75
High Cholesterol	75
Stroke	5
Ischemic Heart Disease	24
Depression	15
Chronic Kidney Disease	35
Asthma	8
Osteoperosis	6
Atrial Fibrilation	6
Heart Failure	10
Chronic Obstructive Pulmonary Disease	7
Diabetes	50
Dementia	10
Cancer	16

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. John Gambrill JR., MD treated as an ophthalmologist in Baltimore, MD during 2019 were eye procedures.

Volume of procedures performed by Dr. John Gambrill JR., MD for Medicare patients.

eye procedures	1653

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. John Gambrill JR., MD.

**Gender**
Male	261
Female	563

**Ethnicity**
Non-Hispanic White	150
Black	651
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	402
From 75 to 84	288
85 and over	97
Less than 65	37

Conditions of Medicare patients treated by Dr. John Gambrill JR., MD in 2019

Hypertension	75
High Cholesterol	75
Stroke	5
Ischemic Heart Disease	23
Depression	17
Chronic Kidney Disease	37
Asthma	8
Osteoperosis	7
Atrial Fibrilation	7
Heart Failure	10
Chronic Obstructive Pulmonary Disease	6
Diabetes	51
Dementia	8
Cancer	13

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. John Gambrill JR., MD treated as an ophthalmologist in Baltimore, MD during 2020 were eye procedures.

Volume of procedures performed by Dr. John Gambrill JR., MD for Medicare patients.

eye procedures	1237

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. John Gambrill JR., MD.

**Gender**
Male	212
Female	474

**Ethnicity**
Non-Hispanic White	120
Black	545
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	349
From 75 to 84	227
85 and over	81
Less than 65	29

Conditions of Medicare patients treated by Dr. John Gambrill JR., MD in 2020

Hypertension	75
High Cholesterol	75
Stroke	3
Ischemic Heart Disease	22
Depression	14
Chronic Kidney Disease	36
Asthma	8
Osteoperosis	5
Atrial Fibrilation	5
Heart Failure	9
Chronic Obstructive Pulmonary Disease	5
Diabetes	50
Dementia	7
Cancer	15

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. John Gambrill JR., MD treated as an ophthalmologist in Baltimore, MD during 2021 were eye procedures.

Volume of procedures performed by Dr. John Gambrill JR., MD for Medicare patients.

doctor visit	287
eye procedures	881

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. John Gambrill JR., MD.

**Gender**
Male	185
Female	426

**Ethnicity**
Non-Hispanic White	100
Black	488
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	317
From 75 to 84	203
85 and over	63
Less than 65	28

Conditions of Medicare patients treated by Dr. John Gambrill JR., MD in 2021

Hypertension	75
High Cholesterol	75
Stroke	4
Ischemic Heart Disease	21
Depression	16
Chronic Kidney Disease	39
Asthma	10
Osteoperosis	6
Atrial Fibrilation	6
Heart Failure	8
Chronic Obstructive Pulmonary Disease	5
Diabetes	49
Dementia	7
Cancer	14

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. John Gambrill JR., MD treated as an ophthalmologist in Baltimore, MD during 2022 were eye procedures.

Volume of procedures performed by Dr. John Gambrill JR., MD for Medicare patients.

doctor visit	455
eye procedures	829

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. John Gambrill JR., MD.

**Gender**
Male	181
Female	409

**Ethnicity**
Non-Hispanic White	98
Black	473
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	295
From 75 to 84	209
85 and over	62
Less than 65	24

Conditions of Medicare patients treated by Dr. John Gambrill JR., MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	6
Ischemic Heart Disease	16
Depression	14
Chronic Kidney Disease	27
Asthma	12
Osteoperosis	10
Atrial Fibrilation	9
Heart Failure	6
Chronic Obstructive Pulmonary Disease	7
Diabetes	48
Dementia	4
Cancer	18

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. John Gambrill JR., MD treated as an ophthalmologist in Baltimore, MD during 2023 were eye procedures.

Volume of procedures performed by Dr. John Gambrill JR., MD for Medicare patients.

doctor visit	447
eye procedures	814

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. John Gambrill JR., MD.

**Gender**
Male	184
Female	399

**Ethnicity**
Non-Hispanic White	95
Black	467
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	275
From 75 to 84	221
85 and over	66
Less than 65	21

Conditions of Medicare patients treated by Dr. John Gambrill JR., MD in 2023

Hypertension	75
High Cholesterol	75
Stroke	8
Ischemic Heart Disease	17
Depression	16
Chronic Kidney Disease	30
Asthma	13
Osteoperosis	9
Atrial Fibrilation	9
Heart Failure	7
Chronic Obstructive Pulmonary Disease	9
Diabetes	51
Dementia	5
Cancer	18

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Volume of procedures performed by Dr. John Gambrill JR., MD for Medicare patients.

The highest averages for the top procedures that Dr. John Gambrill JR., MD treated as an ophthalmologist in Baltimore, MD were eye procedures and ultrasound (sonogram).

doctor visit	229
eye procedures	1532
ultrasound (sonogram)	73

Average Medicare Patient Data From 2012 - 2023

Information about Medicare patients treated by Dr. John Gambrill JR., MD.

**Gender**
Female	530
Male	246

**Ethnicity**
Black / African American	601
Asian / Pacific Islander	1
Non-Hispanic White	152
Hispanic	0
Native American / Alaskan Native	0
Other	0

**Age**
85 and over	87
75 to 84	260
Less than 65	37
65 to 74	392

Average of Total of Conditions of Medicare patients treated by Dr. John Gambrill JR., MD From 2012 - 2023

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

Hypertension	68
High Cholesterol	64
Stroke	4
Ischemic Heart Disease	22
Depression	12
Chronic Kidney Disease	27
Asthma	8
Osteoporosis	5
Heart Failure	9
Chronic Obstructive Pulmonary Disease	6
Diabetes	45
Atrial Fibrillation	6
Dementia	7
Cancer	13

Education & Training

Dr. John Gambrill JR., MD graduated from University of Maryland School of Medicine. He completed residency at University of Maryland Medical Center. He has a state license in Maryland.

Medical School: University of Maryland School of Medicine

Residency: University of Maryland Medical Center

Licensed In: Maryland

Affiliations & Hospitals

Dr. John Gambrill JR., MD is associated with these hospitals and organizations:

GBMC Healthcare

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General Payments

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

**Payments by Company**
Allergan Inc.	$849 LUMIGAN $455	RESTASIS $183	COMBIGAN $105	BOTOX $12	LINZESS $12	Other $83
GlaxoSmithKline, LLC.	$502 ANORO $207	BREO $164	INCRUSE $119	ARNUITY $13
AstraZeneca Pharmaceuticals LP	$416 FARXIGA $189	BYDUREON $108	BYDUREON WEEKLY $90	BYDUREON PEN $16	$14
SANOFI-AVENTIS U.S. LLC	$345 TOUJEO $100	HYPERLIPIDEMIA - DISEASE $89	PRALUENT $37	FABRAZYME $25	$94
Merck Sharp & Dohme Corporation	$279 JANUMET XR $98	PNEUMOVAX 23 $53	GARDASIL9 $39	BELSOMRA $27	GARDASIL 9 $14	Other $48
Other	$2,548 Rhopressa $194	Vascepa $147	Ozempic $143	COMBIGAN $125	Rocklatan $120	Other $1,820

**Types of Payments**
Food and Beverage	$4,839
Gift	$100

Biography

Dr. John Gambrill sees patients in Catonsville, MD and Baltimore, MD. His medical specialty is ophthalmology (eye disease). He attended medical school at the University of Maryland School of Medicine. His medical residency was performed at the University of Maryland Medical Center. Dr. Gambrill is professionally affiliated with GBMC Healthcare.