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Home > ME Providers > Ophthalmologists

Dr. Gregory George Gensheimer, MD

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Specializes in: Ophthalmology (Eye Disease)

University of Rochester School of Medicine and Dentistry (1977)

130 Centre Street
Bath, ME 04530

(207) 443-6626

Dr. Gregory George Gensheimer, MD is an ophthalmologist in Bath, ME specializing in ophthalmology (eye disease). He graduated from University of Rochester School of Medicine and Dentistry in 1977 and has 49 years of experience. Dr. Gregory George Gensheimer, MD is affiliated with MaineHealth, MaineHealth Mid Coast Hospital, MaineHealth Lincoln Hospital, MaineHealth Pen Bay Hospital, MaineHealth Accountable Care Organization and MaineHealth Waldo Hospital.

Office Locations

MaineHealth Waldo Hospital

130 Centre Street
Bath, ME 04530

(207) 443-6626

(207) 443-8142

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MaineHealth Waldo Hospital

22 Station Avenue Suite 2a
Brunswick, ME 04011

(207) 729-7971

(207) 810-2374

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8 Mason Street
Brunswick, ME 04011

(207) 729-7971

(207) 725-7910

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Noteworthy Medicare Patient Procedures Performed by Dr. Gregory George Gensheimer, MD in 2023

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

Top 10%

By Affordability:

visual field test

In 2023, Dr. Gregory George Gensheimer, MD had a list price for visual field test that was lower than the list prices billed to Medicare by 90% of providers in related specialties within Maine. 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:

eye tests

scanning computerized ophthalmic diagnostic imaging

SCODI of the posterior segment

In 2012, Dr. Gregory George Gensheimer, MD had a list price for eye tests, scanning computerized ophthalmic diagnostic imaging (SCODI), and SCODI of the posterior segment (SCODI-P) that was lower than the list prices billed to Medicare by 75% of providers in related specialties within Maine. 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. Gregory George Gensheimer, MD treated as an ophthalmologist in Bath, ME during 2012 were eye procedures, capsulotomy and laser treatment.

Volume of procedures performed by Dr. Gregory George Gensheimer, MD for Medicare patients.

capsulotomy	40
doctor visit	132
eye procedures	2122
laser treatment	40

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Gregory George Gensheimer, MD treated as an ophthalmologist in Bath, ME during 2013 were eye procedures, capsulotomy and laser treatment.

Volume of procedures performed by Dr. Gregory George Gensheimer, MD for Medicare patients.

capsulotomy	38
doctor visit	94
eye procedures	2184
laser treatment	38

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory George Gensheimer, MD.

**Gender**
Male	365
Female	630

**Ethnicity**
Non-Hispanic White	981
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	350
From 75 to 84	373
85 and over	239
Less than 65	33

Conditions of Medicare patients treated by Dr. Gregory George Gensheimer, MD in 2013

Hypertension	64
High Cholesterol	52
Stroke	4
Ischemic Heart Disease	24
Depression	17
Chronic Kidney Disease	15
Asthma	5
Osteoperosis	9
Atrial Fibrilation	13
Heart Failure	9
Chronic Obstructive Pulmonary Disease	10
Diabetes	29
Dementia	5
Cancer	11

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Gregory George Gensheimer, MD treated as an ophthalmologist in Bath, ME during 2014 were eye procedures, capsulotomy and laser treatment.

Volume of procedures performed by Dr. Gregory George Gensheimer, MD for Medicare patients.

capsulotomy	49
doctor visit	99
eye procedures	2248
laser treatment	49

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory George Gensheimer, MD.

**Gender**
Male	388
Female	623

**Ethnicity**
Non-Hispanic White	986
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	353
From 75 to 84	386
85 and over	234
Less than 65	38

Conditions of Medicare patients treated by Dr. Gregory George Gensheimer, MD in 2014

Hypertension	59
High Cholesterol	49
Stroke	4
Ischemic Heart Disease	26
Depression	19
Chronic Kidney Disease	17
Asthma	5
Osteoperosis	8
Atrial Fibrilation	14
Heart Failure	10
Chronic Obstructive Pulmonary Disease	11
Diabetes	29
Dementia	6
Cancer	11

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Gregory George Gensheimer, MD treated as an ophthalmologist in Bath, ME during 2015 were eye procedures, capsulotomy and laser treatment.

Volume of procedures performed by Dr. Gregory George Gensheimer, MD for Medicare patients.

capsulotomy	48
doctor visit	95
eye procedures	2046
laser treatment	48

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory George Gensheimer, MD.

**Gender**
Male	658
Female	1162

**Ethnicity**
Non-Hispanic White	1766
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	608
From 75 to 84	710
85 and over	444
Less than 65	58

Conditions of Medicare patients treated by Dr. Gregory George Gensheimer, MD in 2015

Hypertension	60
High Cholesterol	50
Stroke	4
Ischemic Heart Disease	24
Depression	19
Chronic Kidney Disease	18
Asthma	7
Osteoperosis	8
Atrial Fibrilation	13
Heart Failure	11
Chronic Obstructive Pulmonary Disease	9
Diabetes	28
Dementia	6
Cancer	11

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Gregory George Gensheimer, MD treated as an ophthalmologist in Bath, ME during 2016 were eye procedures, capsulotomy and laser treatment.

Volume of procedures performed by Dr. Gregory George Gensheimer, MD for Medicare patients.

capsulotomy	46
doctor visit	138
eye procedures	1976
laser treatment	46

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory George Gensheimer, MD.

**Gender**
Male	349
Female	578

**Ethnicity**
Non-Hispanic White	898
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	328
From 75 to 84	347
85 and over	219
Less than 65	33

Conditions of Medicare patients treated by Dr. Gregory George Gensheimer, MD in 2016

Hypertension	63
High Cholesterol	49
Stroke	4
Ischemic Heart Disease	24
Depression	20
Chronic Kidney Disease	20
Asthma	13
Osteoperosis	7
Atrial Fibrilation	14
Heart Failure	11
Chronic Obstructive Pulmonary Disease	12
Diabetes	29
Dementia	8
Cancer	10

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Gregory George Gensheimer, MD treated as an ophthalmologist in Bath, ME during 2017 were eye procedures, capsulotomy and laser treatment.

Volume of procedures performed by Dr. Gregory George Gensheimer, MD for Medicare patients.

capsulotomy	17
doctor visit	37
eye procedures	1897
laser treatment	17

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory George Gensheimer, MD.

**Gender**
Male	320
Female	556

**Ethnicity**
Non-Hispanic White	845
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	292
From 75 to 84	342
85 and over	211
Less than 65	31

Conditions of Medicare patients treated by Dr. Gregory George Gensheimer, MD in 2017

Hypertension	60
High Cholesterol	40
Stroke	4
Ischemic Heart Disease	25
Depression	21
Chronic Kidney Disease	21
Asthma	7
Osteoperosis	9
Atrial Fibrilation	14
Heart Failure	10
Chronic Obstructive Pulmonary Disease	10
Diabetes	27
Dementia	7
Cancer	11

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Gregory George Gensheimer, MD treated as an ophthalmologist in Bath, ME during 2018 were eye procedures, capsulotomy and laser treatment.

Volume of procedures performed by Dr. Gregory George Gensheimer, MD for Medicare patients.

capsulotomy	19
eye procedures	1260
laser treatment	19

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory George Gensheimer, MD.

**Gender**
Male	217
Female	383

**Ethnicity**
Non-Hispanic White	578
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	171
From 75 to 84	261
85 and over	148
Less than 65	20

Conditions of Medicare patients treated by Dr. Gregory George Gensheimer, MD in 2018

Hypertension	60
High Cholesterol	50
Stroke	4
Ischemic Heart Disease	25
Depression	19
Chronic Kidney Disease	24
Asthma	5
Osteoperosis	8
Atrial Fibrilation	15
Heart Failure	11
Chronic Obstructive Pulmonary Disease	12
Diabetes	31
Dementia	8
Cancer	11

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Gregory George Gensheimer, MD treated as an ophthalmologist in Bath, ME during 2019 were eye procedures, capsulotomy and laser treatment.

Volume of procedures performed by Dr. Gregory George Gensheimer, MD for Medicare patients.

capsulotomy	15
eye procedures	863
laser treatment	15

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory George Gensheimer, MD.

**Gender**
Male	157
Female	279

**Ethnicity**
Non-Hispanic White	414
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	118
From 75 to 84	196
85 and over	111
Less than 65	11

Conditions of Medicare patients treated by Dr. Gregory George Gensheimer, MD in 2019

Hypertension	54
High Cholesterol	42
Stroke	3
Ischemic Heart Disease	28
Depression	19
Chronic Kidney Disease	21
Asthma	5
Osteoperosis	9
Atrial Fibrilation	12
Heart Failure	11
Chronic Obstructive Pulmonary Disease	9
Diabetes	30
Dementia	8
Cancer	8

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Gregory George Gensheimer, MD treated as an ophthalmologist in Bath, ME during 2020 were eye procedures.

Volume of procedures performed by Dr. Gregory George Gensheimer, MD for Medicare patients.

eye procedures	651

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory George Gensheimer, MD.

**Gender**
Male	138
Female	206

**Ethnicity**
Non-Hispanic White	326
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	0
From 75 to 84	159
85 and over	96
Less than 65	0

Conditions of Medicare patients treated by Dr. Gregory George Gensheimer, MD in 2020

Hypertension	52
High Cholesterol	49
Stroke	4
Ischemic Heart Disease	28
Depression	22
Chronic Kidney Disease	22
Asthma	5
Osteoperosis	7
Atrial Fibrilation	13
Heart Failure	10
Chronic Obstructive Pulmonary Disease	10
Diabetes	26
Dementia	7
Cancer	9

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Gregory George Gensheimer, MD treated as an ophthalmologist in Bath, ME during 2021 were eye procedures, capsulotomy and laser treatment.

Volume of procedures performed by Dr. Gregory George Gensheimer, MD for Medicare patients.

capsulotomy	17
doctor visit	375
eye procedures	483
laser treatment	17

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory George Gensheimer, MD.

**Gender**
Male	155
Female	281

**Ethnicity**
Non-Hispanic White	413
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	106
From 75 to 84	199
85 and over	116
Less than 65	15

Conditions of Medicare patients treated by Dr. Gregory George Gensheimer, MD in 2021

Hypertension	58
High Cholesterol	45
Stroke	4
Ischemic Heart Disease	27
Depression	23
Chronic Kidney Disease	25
Asthma	6
Osteoperosis	6
Atrial Fibrilation	12
Heart Failure	9
Chronic Obstructive Pulmonary Disease	9
Diabetes	27
Dementia	8
Cancer	8

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Gregory George Gensheimer, MD treated as an ophthalmologist in Bath, ME during 2022 were eye procedures.

Volume of procedures performed by Dr. Gregory George Gensheimer, MD for Medicare patients.

doctor visit	287
eye procedures	518

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory George Gensheimer, MD.

**Gender**
Male	150
Female	231

**Ethnicity**
Non-Hispanic White	366
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	95
From 75 to 84	172
85 and over	102
Less than 65	12

Conditions of Medicare patients treated by Dr. Gregory George Gensheimer, MD in 2022

Hypertension	69
High Cholesterol	65
Stroke	9
Ischemic Heart Disease	18
Depression	19
Chronic Kidney Disease	14
Asthma	7
Osteoperosis	13
Atrial Fibrilation	20
Heart Failure	9
Chronic Obstructive Pulmonary Disease	12
Diabetes	26
Dementia	4
Cancer	18

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Gregory George Gensheimer, MD treated as an ophthalmologist in Bath, ME during 2023 were eye procedures.

Volume of procedures performed by Dr. Gregory George Gensheimer, MD for Medicare patients.

doctor visit	184
eye procedures	333

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory George Gensheimer, MD.

**Gender**
Male	106
Female	156

**Ethnicity**
Non-Hispanic White	244
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	0
From 75 to 84	120
85 and over	75
Less than 65	0

Conditions of Medicare patients treated by Dr. Gregory George Gensheimer, MD in 2023

Hypertension	68
High Cholesterol	66
Stroke	6
Ischemic Heart Disease	24
Depression	19
Chronic Kidney Disease	16
Asthma	7
Osteoperosis	19
Atrial Fibrilation	20
Heart Failure	12
Chronic Obstructive Pulmonary Disease	13
Diabetes	29
Dementia	6
Cancer	13

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Volume of procedures performed by Dr. Gregory George Gensheimer, MD for Medicare patients.

The highest averages for the top procedures that Dr. Gregory George Gensheimer, MD treated as an ophthalmologist in Bath, ME were eye procedures, capsulotomy and laser treatment.

capsulotomy	32
doctor visit	160
eye procedures	1381
laser treatment	32

Average Medicare Patient Data From 2012 - 2023

Information about Medicare patients treated by Dr. Gregory George Gensheimer, MD.

**Gender**
Male	250
Female	423

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	651
Hispanic	0
Native American / Alaskan Native	0
Other	0

**Age**
75 to 84	272
85 and over	166
Less than 65	20
65 to 74	201

Average of Total of Conditions of Medicare patients treated by Dr. Gregory George Gensheimer, MD From 2012 - 2023

The highest averages of the most common conditions of Medicare patients that Dr. Gregory George Gensheimer, MD treated were hypertension, high cholesterol, diabetes and ischemic heart disease.

Hypertension	55
High Cholesterol	46
Stroke	4
Ischemic Heart Disease	22
Depression	18
Chronic Kidney Disease	17
Asthma	6
Osteoporosis	8
Heart Failure	9
Chronic Obstructive Pulmonary Disease	9
Diabetes	25
Atrial Fibrillation	13
Cancer	10
Dementia	6

Education & Training

Dr. Gregory George Gensheimer, MD graduated from University of Rochester School of Medicine and Dentistry in 1977. He completed residency at Wills Eye Institute. He is certified by the Board Certification: Ophthalmology and has a state license in Maine.

Medical School: University of Rochester School of Medicine and Dentistry (1977)

Residency: Wills Eye Institute (1981)

Board Certification: Board Certification: Ophthalmology (1982)

Licensed In: Maine

Affiliations & Hospitals

Dr. Gregory George Gensheimer, MD is associated with these hospitals and organizations:

MaineHealth

MaineHealth Mid Coast Hospital

MaineHealth Lincoln Hospital

MaineHealth Pen Bay Hospital

MaineHealth Accountable Care Organization

MaineHealth Waldo Hospital

Ratings & Reviews

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General Payments

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

**Payments by Company**
Abbott Laboratories	$148 Optics $148
Allergan Inc.	$122 $122
Johnson & Johnson Surgical Vision, Inc.	$102 Tecnis IOL $102
Carl Zeiss Meditec, Inc.	$55 CIRRUS photo 800 Instrument $27	Cirrus HD OCT High Definition Optical Coherence Tomographer $27
Bausch and Lomb Inc.	$50 ENVISTA $50
Other	$33 Ilevro $17	CataractEquipment $16

**Types of Payments**
Food and Beverage	$509

Biography

Dr. Gregory Gensheimer is an ophthalmology (eye disease) specialist. He attended the University of Rochester School of Medicine and Dentistry for medical school and subsequently trained at Wills Eye Institute for residency. He is professionally affiliated with MaineHealth.

Select Year:

Dr. Gregory George Gensheimer, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Gregory George Gensheimer, MD in 2023

By Affordability:

By Affordability:

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

2013 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory George Gensheimer, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory George Gensheimer, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory George Gensheimer, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory George Gensheimer, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory George Gensheimer, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory George Gensheimer, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory George Gensheimer, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory George Gensheimer, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory George Gensheimer, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory George Gensheimer, MD in 2022

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

2023 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory George Gensheimer, MD in 2023

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Average Medicare Patient Data From 2012 - 2023

Average of Total of Conditions of Medicare patients treated by Dr. Gregory George Gensheimer, MD From 2012 - 2023

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Biography

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