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Home > MI Providers > Retina Specialists

Dr. Grant Michael Comer, MD, MS

(Dr. Grant Comer, MD)

(502 Ratings)

Specializes in: Vitreoretinal Diseases (Retina and Vitreous)

Indiana University School of Medicine (2001)

1000 Wall Street Elevator B Floor 2
Ann Arbor, MI 48105

(734) 764-4190

Dr. Grant Michael Comer, MD, MS is a retina specialist in Ann Arbor, MI specializing in vitreoretinal diseases (retina and vitreous). He graduated from Indiana University School of Medicine in 2001 and has 25 years of experience. Dr. Grant Michael Comer, MD, MS is affiliated with The Regents of the University of Michigan and University of Michigan Health.

Office Locations

University of Michigan Health

1000 Wall Street Elevator B Floor 2
Ann Arbor, MI 48105

(734) 763-5874

(734) 232-0865

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7500 Challis Road Entrance 1, Level 2
Brighton, MI 48116

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Noteworthy Medicare Patient Procedures Performed by Dr. Grant Michael Comer, MD, MS in 2023

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

Top 10%

By Volume:

SCODI of the posterior segment

In 2023, Dr. Grant Michael Comer, MD, MS performed more SCODI of the posterior segment (SCODI-P) procedures for Medicare patients than 90% of providers in related specialties within Michigan.

Top 25%

By Volume:

eye procedures

injections

In 2012, Dr. Grant Michael Comer, MD, MS performed more eye procedures, and injections procedures for Medicare patients than 75% of providers in related specialties within Michigan.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Grant Michael Comer, MD, MS treated as a retina specialist in Ann Arbor, MI during 2012 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Grant Michael Comer, MD, MS for Medicare patients.

diagnostic imaging	28
doctor visit	1022
eye procedures	1642
injections	851
photocoagulation	13
ultrasound (sonogram)	28

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Grant Michael Comer, MD, MS treated as a retina specialist in Ann Arbor, MI during 2013 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Grant Michael Comer, MD, MS for Medicare patients.

diagnostic imaging	22
doctor visit	863
eye procedures	1551
injections	875
ultrasound (sonogram)	22

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Grant Michael Comer, MD, MS.

**Gender**
Male	230
Female	324

**Ethnicity**
Non-Hispanic White	501
Black	24
Hispanic	0
Asian	11
Other	0
Native American	0

**Age**
From 65 to 74	171
From 75 to 84	182
85 and over	144
Less than 65	57

Conditions of Medicare patients treated by Dr. Grant Michael Comer, MD, MS in 2013

Hypertension	63
High Cholesterol	48
Stroke	5
Ischemic Heart Disease	37
Depression	16
Chronic Kidney Disease	24
Asthma	5
Osteoperosis	7
Atrial Fibrilation	11
Heart Failure	18
Chronic Obstructive Pulmonary Disease	12
Diabetes	41
Dementia	8
Cancer	8

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Grant Michael Comer, MD, MS treated as a retina specialist in Ann Arbor, MI during 2014 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Grant Michael Comer, MD, MS for Medicare patients.

diagnostic imaging	18
doctor visit	815
eye procedures	1626
injections	898
ultrasound (sonogram)	18

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Grant Michael Comer, MD, MS.

**Gender**
Male	229
Female	301

**Ethnicity**
Non-Hispanic White	482
Black	20
Hispanic	0
Asian	13
Other	0
Native American	0

**Age**
From 65 to 74	168
From 75 to 84	185
85 and over	121
Less than 65	56

Conditions of Medicare patients treated by Dr. Grant Michael Comer, MD, MS in 2014

Hypertension	62
High Cholesterol	49
Stroke	5
Ischemic Heart Disease	40
Depression	18
Chronic Kidney Disease	23
Asthma	6
Osteoperosis	7
Atrial Fibrilation	12
Heart Failure	20
Chronic Obstructive Pulmonary Disease	13
Diabetes	39
Dementia	7
Cancer	9

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Grant Michael Comer, MD, MS treated as a retina specialist in Ann Arbor, MI during 2015 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Grant Michael Comer, MD, MS for Medicare patients.

diagnostic imaging	27
doctor visit	991
eye procedures	2700
injections	1117
ultrasound (sonogram)	27

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Grant Michael Comer, MD, MS.

**Gender**
Male	750
Female	950

**Ethnicity**
Non-Hispanic White	1532
Black	100
Hispanic	0
Asian	26
Other	0
Native American	0

**Age**
From 65 to 74	530
From 75 to 84	578
85 and over	416
Less than 65	176

Conditions of Medicare patients treated by Dr. Grant Michael Comer, MD, MS in 2015

Hypertension	70
High Cholesterol	52
Stroke	6
Ischemic Heart Disease	43
Depression	21
Chronic Kidney Disease	27
Asthma	12
Osteoperosis	7
Atrial Fibrilation	13
Heart Failure	20
Chronic Obstructive Pulmonary Disease	16
Diabetes	43
Dementia	11
Cancer	9

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Grant Michael Comer, MD, MS treated as a retina specialist in Ann Arbor, MI during 2016 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Grant Michael Comer, MD, MS for Medicare patients.

diagnostic imaging	29
doctor visit	282
eye procedures	3154
injections	1005
ultrasound (sonogram)	29

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Grant Michael Comer, MD, MS.

**Gender**
Male	325
Female	405

**Ethnicity**
Non-Hispanic White	658
Black	42
Hispanic	0
Asian	16
Other	0
Native American	0

**Age**
From 65 to 74	267
From 75 to 84	220
85 and over	169
Less than 65	74

Conditions of Medicare patients treated by Dr. Grant Michael Comer, MD, MS in 2016

Hypertension	69
High Cholesterol	51
Stroke	5
Ischemic Heart Disease	37
Depression	18
Chronic Kidney Disease	32
Asthma	16
Osteoperosis	8
Atrial Fibrilation	12
Heart Failure	19
Chronic Obstructive Pulmonary Disease	13
Diabetes	40
Dementia	12
Cancer	9

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Grant Michael Comer, MD, MS treated as a retina specialist in Ann Arbor, MI during 2017 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Grant Michael Comer, MD, MS for Medicare patients.

diagnostic imaging	40
doctor visit	340
eye procedures	2845
injections	933
ultrasound (sonogram)	40

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Grant Michael Comer, MD, MS.

**Gender**
Male	247
Female	346

**Ethnicity**
Non-Hispanic White	537
Black	31
Hispanic	0
Asian	11
Other	0
Native American	0

**Age**
From 65 to 74	212
From 75 to 84	174
85 and over	148
Less than 65	59

Conditions of Medicare patients treated by Dr. Grant Michael Comer, MD, MS in 2017

Hypertension	70
High Cholesterol	46
Stroke	5
Ischemic Heart Disease	38
Depression	24
Chronic Kidney Disease	36
Asthma	9
Osteoperosis	8
Atrial Fibrilation	12
Heart Failure	20
Chronic Obstructive Pulmonary Disease	13
Diabetes	38
Dementia	11
Cancer	11

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Grant Michael Comer, MD, MS treated as a retina specialist in Ann Arbor, MI during 2018 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Grant Michael Comer, MD, MS for Medicare patients.

diagnostic imaging	21
doctor visit	303
eye procedures	3009
injections	907
photocoagulation	20
ultrasound (sonogram)	21

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Grant Michael Comer, MD, MS.

**Gender**
Male	264
Female	352

**Ethnicity**
Non-Hispanic White	551
Black	26
Hispanic	0
Asian	18
Other	0
Native American	0

**Age**
From 65 to 74	218
From 75 to 84	210
85 and over	132
Less than 65	56

Conditions of Medicare patients treated by Dr. Grant Michael Comer, MD, MS in 2018

Hypertension	70
High Cholesterol	51
Stroke	6
Ischemic Heart Disease	37
Depression	21
Chronic Kidney Disease	35
Asthma	8
Osteoperosis	9
Atrial Fibrilation	12
Heart Failure	21
Chronic Obstructive Pulmonary Disease	12
Diabetes	35
Dementia	9
Cancer	9

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Grant Michael Comer, MD, MS treated as a retina specialist in Ann Arbor, MI during 2019 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Grant Michael Comer, MD, MS for Medicare patients.

diagnostic imaging	29
doctor visit	319
eye procedures	3025
injections	905
ultrasound (sonogram)	29

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Grant Michael Comer, MD, MS.

**Gender**
Male	257
Female	354

**Ethnicity**
Non-Hispanic White	543
Black	32
Hispanic	0
Asian	0
Other	14
Native American	0

**Age**
From 65 to 74	229
From 75 to 84	198
85 and over	116
Less than 65	68

Conditions of Medicare patients treated by Dr. Grant Michael Comer, MD, MS in 2019

Hypertension	66
High Cholesterol	55
Stroke	6
Ischemic Heart Disease	37
Depression	23
Chronic Kidney Disease	34
Asthma	8
Osteoperosis	9
Atrial Fibrilation	12
Heart Failure	21
Chronic Obstructive Pulmonary Disease	12
Diabetes	38
Dementia	9
Cancer	8

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Grant Michael Comer, MD, MS treated as a retina specialist in Ann Arbor, MI during 2020 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Grant Michael Comer, MD, MS for Medicare patients.

diagnostic imaging	25
doctor visit	218
eye procedures	2540
injections	822
ultrasound (sonogram)	25

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Grant Michael Comer, MD, MS.

**Gender**
Male	257
Female	359

**Ethnicity**
Non-Hispanic White	550
Black	30
Hispanic	0
Asian	0
Other	18
Native American	0

**Age**
From 65 to 74	238
From 75 to 84	192
85 and over	134
Less than 65	52

Conditions of Medicare patients treated by Dr. Grant Michael Comer, MD, MS in 2020

Hypertension	63
High Cholesterol	48
Stroke	3
Ischemic Heart Disease	33
Depression	21
Chronic Kidney Disease	35
Asthma	6
Osteoperosis	7
Atrial Fibrilation	10
Heart Failure	18
Chronic Obstructive Pulmonary Disease	7
Diabetes	38
Dementia	10
Cancer	8

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Grant Michael Comer, MD, MS treated as a retina specialist in Ann Arbor, MI during 2021 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Grant Michael Comer, MD, MS for Medicare patients.

diagnostic imaging	14
doctor visit	794
eye procedures	2221
injections	890
ultrasound (sonogram)	14

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Grant Michael Comer, MD, MS.

**Gender**
Male	237
Female	371

**Ethnicity**
Non-Hispanic White	558
Black	23
Hispanic	0
Asian	0
Other	11
Native American	0

**Age**
From 65 to 74	219
From 75 to 84	215
85 and over	127
Less than 65	47

Conditions of Medicare patients treated by Dr. Grant Michael Comer, MD, MS in 2021

Hypertension	68
High Cholesterol	52
Stroke	6
Ischemic Heart Disease	36
Depression	22
Chronic Kidney Disease	37
Asthma	7
Osteoperosis	10
Atrial Fibrilation	11
Heart Failure	21
Chronic Obstructive Pulmonary Disease	9
Diabetes	38
Dementia	12
Cancer	9

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Grant Michael Comer, MD, MS treated as a retina specialist in Ann Arbor, MI during 2022 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Grant Michael Comer, MD, MS for Medicare patients.

diagnostic imaging	27
doctor visit	741
eye procedures	2094
injections	811
ultrasound (sonogram)	27

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Grant Michael Comer, MD, MS.

**Gender**
Male	241
Female	361

**Ethnicity**
Non-Hispanic White	554
Black	20
Hispanic	0
Asian	0
Other	17
Native American	0

**Age**
From 65 to 74	222
From 75 to 84	223
85 and over	107
Less than 65	50

Conditions of Medicare patients treated by Dr. Grant Michael Comer, MD, MS in 2022

Hypertension	75
High Cholesterol	64
Stroke	9
Ischemic Heart Disease	27
Depression	19
Chronic Kidney Disease	28
Asthma	12
Osteoperosis	12
Atrial Fibrilation	18
Heart Failure	17
Chronic Obstructive Pulmonary Disease	14
Diabetes	36
Dementia	7
Cancer	13

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Grant Michael Comer, MD, MS for Medicare patients.

The highest averages for the top procedures that Dr. Grant Michael Comer, MD, MS treated as a retina specialist in Ann Arbor, MI were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

diagnostic imaging	25
doctor visit	608
eye procedures	2400
injections	910
photocoagulation	16
ultrasound (sonogram)	25

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Grant Michael Comer, MD, MS.

**Gender**
Male	276
Female	374

**Ethnicity**
Black / African American	31
Asian / Pacific Islander	8
Non-Hispanic White	587
Hispanic	0
Native American / Alaskan Native	0
Other	5

**Age**
75 to 84	216
85 and over	146
Less than 65	63
65 to 74	224

Average of Total of Conditions of Medicare patients treated by Dr. Grant Michael Comer, MD, MS From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Grant Michael Comer, MD, MS treated were hypertension, high cholesterol, diabetes and ischemic heart disease.

Hypertension	61
High Cholesterol	46
Stroke	5
Ischemic Heart Disease	33
Depression	18
Chronic Kidney Disease	28
Asthma	8
Osteoporosis	7
Heart Failure	17
Chronic Obstructive Pulmonary Disease	11
Diabetes	35
Atrial Fibrillation	11
Cancer	8
Dementia	8

Education & Training

Dr. Grant Michael Comer, MD, MS graduated from Indiana University School of Medicine in 2001. He completed residency at Indiana University Affiliated Hospitals. He is certified by the Board Certification: Ophthalmology and has a state license in Michigan.

Medical School: Indiana University School of Medicine (2001)

Residency: Indiana University Affiliated Hospitals (2005)

Board Certification: Board Certification: Ophthalmology

Licensed In: Michigan

Affiliations & Hospitals

Dr. Grant Michael Comer, MD, MS is associated with these hospitals and organizations:

The Regents of the University of Michigan

University of Michigan Health

Ratings & Reviews

Dr. Grant Michael Comer, MD, MS has an exceptional overall rating with an average of 5.0 out of 5 stars based on 502 ratings. We collect ratings and reviews of Dr. Grant Michael Comer, MD, MS from all over the web to help you find the right in Ann Arbor, MI.

Overall Rating

(502 Ratings)

Leave a Review

Research Payments

Dr. Grant Michael Comer, MD, MS has received 6 research payments totaling $6,391.

Biography

Dr. Grant Comer is a specialist in vitreoretinal diseases (retina and vitreous). Dr. Comer's patients gave him an average rating of 5.0 stars (out of 5). He is affiliated with the University of Michigan Health. After attending Indiana University School of Medicine, he completed his residency training at a hospital affiliated with Indiana University.

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Dr. Grant Michael Comer, MD, MS

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Grant Michael Comer, MD, MS in 2023

By Volume:

By Volume:

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. Grant Michael Comer, MD, MS in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Grant Michael Comer, MD, MS in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Grant Michael Comer, MD, MS in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Grant Michael Comer, MD, MS in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Grant Michael Comer, MD, MS in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Grant Michael Comer, MD, MS in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Grant Michael Comer, MD, MS in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Grant Michael Comer, MD, MS in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Grant Michael Comer, MD, MS in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Grant Michael Comer, MD, MS in 2022

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Average Medicare Patient Data From 2012 - 2022

Average of Total of Conditions of Medicare patients treated by Dr. Grant Michael Comer, MD, MS From 2012 - 2022

Education & Training

Affiliations & Hospitals

Ratings & Reviews

Research Payments

Biography

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