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Home > MI Providers > Retina Specialists
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Dr. Grant Michael Comer, MD, MS

(Dr. Grant Comer, MD)
Specializes in: Vitreoretinal Diseases (Retina and Vitreous)
Indiana University School of Medicine (2001)
1000 Wall Street Elevator B Floor 2
Ann Arbor, MI 48105

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.

View Doctor's Full Profile (734) 764-4190

Office Locations

University of Michigan Health

1000 Wall Street Elevator B Floor 2
Ann Arbor, MI 48105
(734) 763-5874
(734) 232-0865
open_in_new
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 2013, 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

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

The most common conditions of Medicare patients that Dr. Grant Michael Comer, MD, MS treated during 2013 were hypertension, high cholesterol, diabetes and ischemic heart disease.

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

The most common conditions of Medicare patients that Dr. Grant Michael Comer, MD, MS treated during 2014 were hypertension, high cholesterol, ischemic heart disease and diabetes.

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

The most common conditions of Medicare patients that Dr. Grant Michael Comer, MD, MS treated during 2015 were hypertension, high cholesterol, diabetes and ischemic heart disease.

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

The most common conditions of Medicare patients that Dr. Grant Michael Comer, MD, MS treated during 2016 were hypertension, high cholesterol, diabetes and ischemic heart disease.

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

The most common conditions of Medicare patients that Dr. Grant Michael Comer, MD, MS treated during 2017 were hypertension, high cholesterol, diabetes and ischemic heart disease.

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

The most common conditions of Medicare patients that Dr. Grant Michael Comer, MD, MS treated during 2018 were hypertension, high cholesterol, ischemic heart disease and chronic kidney disease.

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

The most common conditions of Medicare patients that Dr. Grant Michael Comer, MD, MS treated during 2019 were hypertension, high cholesterol, diabetes and ischemic heart disease.

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

The most common conditions of Medicare patients that Dr. Grant Michael Comer, MD, MS treated during 2020 were hypertension, high cholesterol, diabetes and chronic kidney disease.

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

The most common conditions of Medicare patients that Dr. Grant Michael Comer, MD, MS treated during 2021 were hypertension, high cholesterol, diabetes and chronic kidney disease.

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

The most common conditions of Medicare patients that Dr. Grant Michael Comer, MD, MS treated during 2022 were hypertension, high cholesterol, diabetes and chronic kidney disease.

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

2023 Medicare Procedure Volume

The top procedures that Dr. Grant Michael Comer, MD, MS treated as a retina specialist in Ann Arbor, MI during 2023 were eye procedures and injections.

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

doctor visit 698
eye procedures 2128
injections 840

2023 Medicare Patient Data

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

Gender
Male 229
Female 352
Ethnicity
Non-Hispanic White 527
Black 20
Hispanic 0
Asian 0
Other 21
Native American 0
Age
From 65 to 74 222
From 75 to 84 227
85 and over 98
Less than 65 34

Conditions of Medicare patients treated by Dr. Grant Michael Comer, MD, MS in 2023

The most common conditions of Medicare patients that Dr. Grant Michael Comer, MD, MS treated during 2023 were hypertension, high cholesterol, diabetes and chronic kidney disease.

Hypertension 74
High Cholesterol 67
Stroke 9
Ischemic Heart Disease 26
Depression 21
Chronic Kidney Disease 26
Asthma 12
Osteoperosis 18
Atrial Fibrilation 18
Heart Failure 16
Chronic Obstructive Pulmonary Disease 13
Diabetes 35
Dementia 8
Cancer 13

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2013 - 2023

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 578
eye procedures 2444
injections 909
photocoagulation 20
ultrasound (sonogram) 25

Average Medicare Patient Data From 2013 - 2023

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

Gender
Male 296
Female 406
Ethnicity
Black / African American 33
Asian / Pacific Islander 8
Non-Hispanic White 635
Hispanic 0
Native American / Alaskan Native 0
Other 7
Age
85 and over 155
75 to 84 236
Less than 65 66
65 to 74 245

Average of Total of Conditions of Medicare patients treated by Dr. Grant Michael Comer, MD, MS From 2013 - 2023

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 68
High Cholesterol 53
Stroke 5
Ischemic Heart Disease 35
Depression 20
Chronic Kidney Disease 30
Asthma 9
Osteoporosis 9
Heart Failure 19
Chronic Obstructive Pulmonary Disease 12
Diabetes 38
Atrial Fibrillation 12
Cancer 9
Dementia 9

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. 

5
Overall Rating
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Research Payments

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

Biography

Dr. Grant Comer specializes in vitreoretinal diseases (retina and vitreous) and practices in Ann Arbor, MI and Brighton, MI. Patient ratings for Dr. Comer average 5.0 stars (out of 5). He studied medicine at Indiana University School of Medicine. He trained at a hospital affiliated with Indiana University for residency. Dr. Comer is professionally affiliated with the University of Michigan Health.

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