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Home > MA Providers > Retina Specialists

Dr. Gregory R. Blaha, PHD, MD

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Specializes in: Vitreoretinal Diseases (Retina and Vitreous)

1 Essex Center Drive
Peabody, MA 01960

(978) 538-4400

Dr. Gregory R. Blaha, PHD, MD is a retina specialist in Peabody, MA specializing in vitreoretinal diseases (retina and vitreous).

Office Locations

1 Essex Center Drive
Peabody, MA 01960

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Noteworthy Medicare Patient Procedures Performed by Dr. Gregory R. Blaha, PHD, MD in 2023

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

Top 5%

By Affordability:

ophthalmic biometry

In 2023, Dr. Gregory R. Blaha, PHD, MD had a list price for ophthalmic biometry that was lower than the list prices billed to Medicare by 95% of providers in related specialties within Massachusetts. 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 10%

By Volume:

SCODI of the posterior segment

By Affordability:

comprehensive eye exam

intravitreal drug injection

intravitreal injection

scanning computerized ophthalmic diagnostic imaging

SCODI of the posterior segment

In 2023, among providers in related specialties within Massachusetts, Dr. Gregory R. Blaha, PHD, MD performed more SCODI of the posterior segment (SCODI-P) procedures for Medicare patients than 90% of them and he also had a list price for comprehensive eye exam, intravitreal drug injection, intravitreal injection, 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 90% 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 Volume:

eye procedures

intravitreal drug injection

By Affordability:

intraocular injection

ophthalmic ultrasound

In 2012, among providers in related specialties within Massachusetts, Dr. Gregory R. Blaha, PHD, MD performed more eye procedures, and intravitreal drug injection procedures for Medicare patients than 75% of them and he also had a list price for eye exam, eye injection, eye tests, fundus photography, intraocular injection, and ophthalmic ultrasound that was lower than the list prices billed to Medicare by 75% 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.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Gregory R. Blaha, PHD, MD treated as a retina specialist in Peabody, MA during 2012 were eye procedures and injections.

Volume of procedures performed by Dr. Gregory R. Blaha, PHD, MD for Medicare patients.

doctor visit	1744
eye procedures	3519
injections	1245

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Gregory R. Blaha, PHD, MD treated as a retina specialist in Peabody, MA during 2013 were eye procedures, injections, photocoagulation and prophylaxis (preventive treatment).

Volume of procedures performed by Dr. Gregory R. Blaha, PHD, MD for Medicare patients.

diagnostic imaging	13
doctor visit	1808
eye procedures	3760
injections	1308
photocoagulation	15
prophylaxis (preventive treatment)	15
ultrasound (sonogram)	13

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory R. Blaha, PHD, MD.

**Gender**
Male	324
Female	452

**Ethnicity**
Non-Hispanic White	741
Black	0
Hispanic	11
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	238
From 75 to 84	271
85 and over	225
Less than 65	42

Conditions of Medicare patients treated by Dr. Gregory R. Blaha, PHD, MD in 2013

Hypertension	72
High Cholesterol	61
Stroke	5
Ischemic Heart Disease	39
Depression	20
Chronic Kidney Disease	30
Asthma	8
Osteoperosis	10
Atrial Fibrilation	19
Heart Failure	20
Chronic Obstructive Pulmonary Disease	14
Diabetes	37
Dementia	10
Cancer	12

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Gregory R. Blaha, PHD, MD treated as a retina specialist in Peabody, MA during 2014 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Gregory R. Blaha, PHD, MD for Medicare patients.

diagnostic imaging	16
doctor visit	1746
eye procedures	3942
injections	1349
ultrasound (sonogram)	16

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory R. Blaha, PHD, MD.

**Gender**
Male	380
Female	489

**Ethnicity**
Non-Hispanic White	828
Black	0
Hispanic	14
Asian	12
Other	0
Native American	0

**Age**
From 65 to 74	261
From 75 to 84	306
85 and over	247
Less than 65	55

Conditions of Medicare patients treated by Dr. Gregory R. Blaha, PHD, MD in 2014

Hypertension	69
High Cholesterol	55
Stroke	4
Ischemic Heart Disease	36
Depression	18
Chronic Kidney Disease	29
Asthma	8
Osteoperosis	10
Atrial Fibrilation	17
Heart Failure	19
Chronic Obstructive Pulmonary Disease	13
Diabetes	34
Dementia	11
Cancer	12

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Gregory R. Blaha, PHD, MD treated as a retina specialist in Peabody, MA during 2015 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Gregory R. Blaha, PHD, MD for Medicare patients.

diagnostic imaging	18
doctor visit	1388
eye procedures	3251
injections	1087
ultrasound (sonogram)	18

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory R. Blaha, PHD, MD.

**Gender**
Male	664
Female	956

**Ethnicity**
Non-Hispanic White	1546
Black	0
Hispanic	26
Asian	0
Other	24
Native American	0

**Age**
From 65 to 74	504
From 75 to 84	580
85 and over	458
Less than 65	78

Conditions of Medicare patients treated by Dr. Gregory R. Blaha, PHD, MD in 2015

Hypertension	68
High Cholesterol	57
Stroke	6
Ischemic Heart Disease	34
Depression	18
Chronic Kidney Disease	32
Asthma	11
Osteoperosis	10
Atrial Fibrilation	18
Heart Failure	19
Chronic Obstructive Pulmonary Disease	13
Diabetes	33
Dementia	10
Cancer	11

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Gregory R. Blaha, PHD, MD treated as a retina specialist in Peabody, MA during 2016 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Gregory R. Blaha, PHD, MD for Medicare patients.

diagnostic imaging	17
doctor visit	1473
eye procedures	3477
injections	1135
ultrasound (sonogram)	17

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory R. Blaha, PHD, MD.

**Gender**
Male	357
Female	528

**Ethnicity**
Non-Hispanic White	841
Black	0
Hispanic	15
Asian	0
Other	13
Native American	0

**Age**
From 65 to 74	269
From 75 to 84	321
85 and over	254
Less than 65	41

Conditions of Medicare patients treated by Dr. Gregory R. Blaha, PHD, MD in 2016

Hypertension	71
High Cholesterol	56
Stroke	5
Ischemic Heart Disease	32
Depression	20
Chronic Kidney Disease	35
Asthma	15
Osteoperosis	11
Atrial Fibrilation	17
Heart Failure	20
Chronic Obstructive Pulmonary Disease	13
Diabetes	33
Dementia	11
Cancer	11

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Gregory R. Blaha, PHD, MD treated as a retina specialist in Peabody, MA during 2017 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Gregory R. Blaha, PHD, MD for Medicare patients.

diagnostic imaging	18
doctor visit	1371
eye procedures	3578
injections	1129
photocoagulation	11
prophylaxis (preventive treatment)	11
ultrasound (sonogram)	18

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory R. Blaha, PHD, MD.

**Gender**
Male	362
Female	525

**Ethnicity**
Non-Hispanic White	837
Black	0
Hispanic	16
Asian	0
Other	19
Native American	0

**Age**
From 65 to 74	284
From 75 to 84	312
85 and over	251
Less than 65	40

Conditions of Medicare patients treated by Dr. Gregory R. Blaha, PHD, MD in 2017

Hypertension	70
High Cholesterol	45
Stroke	6
Ischemic Heart Disease	32
Depression	21
Chronic Kidney Disease	38
Asthma	8
Osteoperosis	12
Atrial Fibrilation	16
Heart Failure	19
Chronic Obstructive Pulmonary Disease	14
Diabetes	31
Dementia	12
Cancer	12

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Gregory R. Blaha, PHD, MD treated as a retina specialist in Peabody, MA during 2018 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Gregory R. Blaha, PHD, MD for Medicare patients.

capsulotomy	11
diagnostic imaging	16
doctor visit	1423
eye procedures	3743
injections	1110
laser treatment	11
ultrasound (sonogram)	16

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory R. Blaha, PHD, MD.

**Gender**
Male	384
Female	515

**Ethnicity**
Non-Hispanic White	843
Black	0
Hispanic	15
Asian	0
Other	25
Native American	0

**Age**
From 65 to 74	285
From 75 to 84	324
85 and over	250
Less than 65	40

Conditions of Medicare patients treated by Dr. Gregory R. Blaha, PHD, MD in 2018

Hypertension	74
High Cholesterol	57
Stroke	4
Ischemic Heart Disease	30
Depression	21
Chronic Kidney Disease	40
Asthma	8
Osteoperosis	10
Atrial Fibrilation	16
Heart Failure	18
Chronic Obstructive Pulmonary Disease	15
Diabetes	32
Dementia	9
Cancer	14

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Gregory R. Blaha, PHD, MD treated as a retina specialist in Peabody, MA during 2019 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Gregory R. Blaha, PHD, MD for Medicare patients.

capsulotomy	16
diagnostic imaging	35
doctor visit	1530
eye procedures	3920
injections	1190
laser treatment	16
photocoagulation	14
prophylaxis (preventive treatment)	14
ultrasound (sonogram)	35

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory R. Blaha, PHD, MD.

**Gender**
Male	405
Female	558

**Ethnicity**
Non-Hispanic White	913
Black	0
Hispanic	11
Asian	0
Other	25
Native American	0

**Age**
From 65 to 74	306
From 75 to 84	348
85 and over	267
Less than 65	42

Conditions of Medicare patients treated by Dr. Gregory R. Blaha, PHD, MD in 2019

Hypertension	69
High Cholesterol	57
Stroke	7
Ischemic Heart Disease	31
Depression	23
Chronic Kidney Disease	38
Asthma	7
Osteoperosis	13
Atrial Fibrilation	16
Heart Failure	20
Chronic Obstructive Pulmonary Disease	12
Diabetes	30
Dementia	11
Cancer	12

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Gregory R. Blaha, PHD, MD treated as a retina specialist in Peabody, MA during 2020 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Gregory R. Blaha, PHD, MD for Medicare patients.

diagnostic imaging	20
doctor visit	1049
eye procedures	2931
injections	990
ultrasound (sonogram)	20

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory R. Blaha, PHD, MD.

**Gender**
Male	366
Female	534

**Ethnicity**
Non-Hispanic White	853
Black	0
Hispanic	13
Asian	0
Other	22
Native American	0

**Age**
From 65 to 74	278
From 75 to 84	316
85 and over	268
Less than 65	38

Conditions of Medicare patients treated by Dr. Gregory R. Blaha, PHD, MD in 2020

Hypertension	64
High Cholesterol	53
Stroke	6
Ischemic Heart Disease	29
Depression	22
Chronic Kidney Disease	38
Asthma	8
Osteoperosis	13
Atrial Fibrilation	15
Heart Failure	17
Chronic Obstructive Pulmonary Disease	12
Diabetes	29
Dementia	11
Cancer	12

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Gregory R. Blaha, PHD, MD treated as a retina specialist in Peabody, MA during 2021 were eye procedures, injections, capsulotomy and laser treatment.

Volume of procedures performed by Dr. Gregory R. Blaha, PHD, MD for Medicare patients.

capsulotomy	18
diagnostic imaging	12
doctor visit	1225
eye procedures	3468
injections	1079
laser treatment	18
ultrasound (sonogram)	12

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory R. Blaha, PHD, MD.

**Gender**
Male	355
Female	520

**Ethnicity**
Non-Hispanic White	829
Black	0
Hispanic	0
Asian	0
Other	25
Native American	0

**Age**
From 65 to 74	286
From 75 to 84	322
85 and over	235
Less than 65	32

Conditions of Medicare patients treated by Dr. Gregory R. Blaha, PHD, MD in 2021

Hypertension	67
High Cholesterol	57
Stroke	7
Ischemic Heart Disease	29
Depression	23
Chronic Kidney Disease	38
Asthma	7
Osteoperosis	14
Atrial Fibrilation	14
Heart Failure	18
Chronic Obstructive Pulmonary Disease	11
Diabetes	31
Dementia	11
Cancer	12

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Gregory R. Blaha, PHD, MD treated as a retina specialist in Peabody, MA during 2022 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Gregory R. Blaha, PHD, MD for Medicare patients.

capsulotomy	13
diagnostic imaging	25
doctor visit	1239
eye procedures	3539
injections	1054
laser treatment	13
ultrasound (sonogram)	25

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory R. Blaha, PHD, MD.

**Gender**
Male	358
Female	533

**Ethnicity**
Non-Hispanic White	844
Black	0
Hispanic	0
Asian	0
Other	28
Native American	0

**Age**
From 65 to 74	285
From 75 to 84	348
85 and over	229
Less than 65	29

Conditions of Medicare patients treated by Dr. Gregory R. Blaha, PHD, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	10
Ischemic Heart Disease	24
Depression	20
Chronic Kidney Disease	31
Asthma	10
Osteoperosis	19
Atrial Fibrilation	21
Heart Failure	17
Chronic Obstructive Pulmonary Disease	16
Diabetes	32
Dementia	7
Cancer	17

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Gregory R. Blaha, PHD, MD treated as a retina specialist in Peabody, MA during 2023 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Gregory R. Blaha, PHD, MD for Medicare patients.

capsulotomy	11
diagnostic imaging	12
doctor visit	1366
eye procedures	3711
injections	1199
laser treatment	11
ultrasound (sonogram)	12

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory R. Blaha, PHD, MD.

**Gender**
Male	367
Female	571

**Ethnicity**
Non-Hispanic White	889
Black	0
Hispanic	0
Asian	0
Other	31
Native American	0

**Age**
From 65 to 74	313
From 75 to 84	355
85 and over	234
Less than 65	36

Conditions of Medicare patients treated by Dr. Gregory R. Blaha, PHD, MD in 2023

Hypertension	74
High Cholesterol	73
Stroke	10
Ischemic Heart Disease	24
Depression	19
Chronic Kidney Disease	31
Asthma	12
Osteoperosis	20
Atrial Fibrilation	18
Heart Failure	15
Chronic Obstructive Pulmonary Disease	16
Diabetes	29
Dementia	7
Cancer	18

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Volume of procedures performed by Dr. Gregory R. Blaha, PHD, MD for Medicare patients.

The highest averages for the top procedures that Dr. Gregory R. Blaha, PHD, MD treated as a retina specialist in Peabody, MA were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

capsulotomy	13
diagnostic imaging	18
doctor visit	1446
eye procedures	3569
injections	1156
laser treatment	13
photocoagulation	13
prophylaxis (preventive treatment)	13
ultrasound (sonogram)	18

Average Medicare Patient Data From 2012 - 2023

Information about Medicare patients treated by Dr. Gregory R. Blaha, PHD, MD.

**Gender**
Female	515
Male	360

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	1
Non-Hispanic White	830
Native American / Alaskan Native	0
Hispanic	10
Other	17

**Age**
75 to 84	316
85 and over	243
Less than 65	39
65 to 74	275

Average of Total of Conditions of Medicare patients treated by Dr. Gregory R. Blaha, PHD, MD From 2012 - 2023

The highest averages of the most common conditions of Medicare patients that Dr. Gregory R. Blaha, PHD, MD treated were hypertension, high cholesterol, chronic kidney disease and diabetes.

Hypertension	64
High Cholesterol	53
Stroke	5
Ischemic Heart Disease	28
Depression	18
Chronic Kidney Disease	31
Asthma	8
Osteoporosis	11
Heart Failure	16
Chronic Obstructive Pulmonary Disease	12
Diabetes	29
Atrial Fibrillation	15
Dementia	9
Cancer	11

Education & Training

He has a state license in Massachusetts.

Licensed In: Massachusetts

Ratings & Reviews

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General Payments

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

**Payments by Company**
Regeneron Pharmaceuticals, Inc.	$13,522 EYLEA aflibercept injection $7,047	EYLEA (aflibercept) Injection $6,107	EYLEA HD $136	Eylea $107	$124
Beaver-Visitec International, Inc.	$1,350 $1,350
Alimera Sciences, Inc.	$1,097 ILUVIEN $1,097
Regeneron Healthcare Solutions, Inc.	$989 EYLEA (aflibercept) Injection $887	EYLEA aflibercept injection $101
Genentech USA, Inc.	$490 LUCENTIS $374	VABYSMO $115
Other	$2,205 Constellation $276	VitreoretinalEquipment $124	BUPARLISIB $122	LUCENTIS $116	Vitreoretinal Equipment $111	Other $1,456

**Types of Payments**
Consulting Fee	$13,723
Food and Beverage	$3,630
Travel and Lodging	$2,192
Education	$106

Research Payments

Dr. Gregory R. Blaha, PHD, MD has received 21 research payments totaling $75,758.

Biography

Dr. Gregory Blaha is a medical specialist in vitreoretinal diseases (retina and vitreous). Dr. Blaha attended medical school at the University of Pennsylvania School of Medicine.

Select Year:

Dr. Gregory R. Blaha, PHD, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Gregory R. Blaha, PHD, MD in 2023

By Affordability:

By Volume:

By Affordability:

By Volume:

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 R. Blaha, PHD, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory R. Blaha, PHD, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory R. Blaha, PHD, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory R. Blaha, PHD, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory R. Blaha, PHD, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory R. Blaha, PHD, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory R. Blaha, PHD, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory R. Blaha, PHD, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory R. Blaha, PHD, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory R. Blaha, PHD, MD in 2022

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

2023 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory R. Blaha, PHD, 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 R. Blaha, PHD, MD From 2012 - 2023

Education & Training

Ratings & Reviews

General Payments

Research Payments

Biography

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