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Dr. Gregory M. Haffner, MD

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(Dr. Gregory Haffner, M.D.)

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Specializes in: Vitreoretinal Diseases (Retina and Vitreous)

National University of Ireland Galway, School of Medicine

Professional interests include: retina surgery

1445 East Putnam Avenue
Old Greenwich, CT 06870

(203) 698-8880

Dr. Gregory M. Haffner, MD is a retina specialist in Old Greenwich, CT specializing in vitreoretinal diseases (retina and vitreous). He graduated from National University of Ireland Galway, School of Medicine. Dr. Gregory M. Haffner, MD is affiliated with Yale New Haven Health, Hartford Healthcare and Integrated Care Partners.

Office Locations

Yale New Haven Health

1445 East Putnam Avenue
Old Greenwich, CT 06870

(203) 698-8880

(203) 698-9178

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Yale New Haven Health

162 Kings Highway North
Westport, CT 06880

(203) 222-7474

(203) 221-1591

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Yale New Haven Health

2200 Whitney Avenue Suite 300
Hamden, CT 06518

(203) 288-2470

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Noteworthy Medicare Patient Procedures Performed by Dr. Gregory M. Haffner, MD in 2023

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

Top 5%

By Volume:

SCODI of the posterior segment

In 2023, Dr. Gregory M. Haffner, MD performed more SCODI of the posterior segment (SCODI-P) procedures for Medicare patients than 95% of providers in related specialties within Connecticut.

Top 10%

By Volume:

eye procedures

intravitreal drug injection

In 2023, Dr. Gregory M. Haffner, MD performed more eye procedures, and intravitreal drug injection procedures for Medicare patients than 90% of providers in related specialties within Connecticut.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Gregory M. Haffner, MD treated as a retina specialist in Old Greenwich, CT during 2012 were eye procedures, injections, photocoagulation and diagnostic imaging.

Volume of procedures performed by Dr. Gregory M. Haffner, MD for Medicare patients.

diagnostic imaging	98
doctor visit	677
eye procedures	6695
injections	1469
photocoagulation	107
prophylaxis (preventive treatment)	18
ultrasound (sonogram)	98

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Gregory M. Haffner, MD treated as a retina specialist in Old Greenwich, CT during 2013 were eye procedures, injections, photocoagulation and diagnostic imaging.

Volume of procedures performed by Dr. Gregory M. Haffner, MD for Medicare patients.

diagnostic imaging	54
doctor visit	773
eye procedures	6328
injections	1380
photocoagulation	79
ultrasound (sonogram)	54

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory M. Haffner, MD.

**Gender**
Male	588
Female	801

**Ethnicity**
Non-Hispanic White	1246
Black	56
Hispanic	58
Asian	15
Other	0
Native American	0

**Age**
From 65 to 74	383
From 75 to 84	478
85 and over	456
Less than 65	72

Conditions of Medicare patients treated by Dr. Gregory M. Haffner, MD in 2013

Hypertension	74
High Cholesterol	60
Stroke	6
Ischemic Heart Disease	36
Depression	16
Chronic Kidney Disease	23
Asthma	5
Osteoperosis	10
Atrial Fibrilation	16
Heart Failure	21
Chronic Obstructive Pulmonary Disease	14
Diabetes	37
Dementia	12
Cancer	11

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Gregory M. Haffner, MD treated as a retina specialist in Old Greenwich, CT during 2014 were eye procedures, injections, photocoagulation and diagnostic imaging.

Volume of procedures performed by Dr. Gregory M. Haffner, MD for Medicare patients.

diagnostic imaging	58
doctor visit	518
eye procedures	6780
injections	1402
photocoagulation	74
ultrasound (sonogram)	58

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory M. Haffner, MD.

**Gender**
Male	454
Female	645

**Ethnicity**
Non-Hispanic White	965
Black	55
Hispanic	44
Asian	0
Other	21
Native American	0

**Age**
From 65 to 74	316
From 75 to 84	353
85 and over	369
Less than 65	61

Conditions of Medicare patients treated by Dr. Gregory M. Haffner, MD in 2014

Hypertension	74
High Cholesterol	60
Stroke	6
Ischemic Heart Disease	35
Depression	16
Chronic Kidney Disease	23
Asthma	6
Osteoperosis	9
Atrial Fibrilation	17
Heart Failure	21
Chronic Obstructive Pulmonary Disease	12
Diabetes	36
Dementia	11
Cancer	12

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Gregory M. Haffner, MD treated as a retina specialist in Old Greenwich, CT during 2015 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Gregory M. Haffner, MD for Medicare patients.

diagnostic imaging	62
doctor visit	380
eye procedures	6557
injections	1408
photocoagulation	61
prophylaxis (preventive treatment)	12
ultrasound (sonogram)	62

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory M. Haffner, MD.

**Gender**
Male	904
Female	1178

**Ethnicity**
Non-Hispanic White	1818
Black	102
Hispanic	86
Asian	28
Other	48
Native American	0

**Age**
From 65 to 74	632
From 75 to 84	622
85 and over	708
Less than 65	120

Conditions of Medicare patients treated by Dr. Gregory M. Haffner, MD in 2015

Hypertension	70
High Cholesterol	59
Stroke	4
Ischemic Heart Disease	33
Depression	17
Chronic Kidney Disease	27
Asthma	9
Osteoperosis	9
Atrial Fibrilation	16
Heart Failure	23
Chronic Obstructive Pulmonary Disease	11
Diabetes	36
Dementia	11
Cancer	11

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Gregory M. Haffner, MD treated as a retina specialist in Old Greenwich, CT during 2016 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Gregory M. Haffner, MD for Medicare patients.

diagnostic imaging	47
doctor visit	321
eye procedures	6608
injections	1589
photocoagulation	30
ultrasound (sonogram)	47

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory M. Haffner, MD.

**Gender**
Male	418
Female	571

**Ethnicity**
Non-Hispanic White	861
Black	51
Hispanic	42
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	287
From 75 to 84	316
85 and over	331
Less than 65	55

Conditions of Medicare patients treated by Dr. Gregory M. Haffner, MD in 2016

Hypertension	71
High Cholesterol	56
Stroke	5
Ischemic Heart Disease	32
Depression	17
Chronic Kidney Disease	31
Asthma	16
Osteoperosis	10
Atrial Fibrilation	16
Heart Failure	21
Chronic Obstructive Pulmonary Disease	13
Diabetes	35
Dementia	13
Cancer	11

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Gregory M. Haffner, MD treated as a retina specialist in Old Greenwich, CT during 2017 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Gregory M. Haffner, MD for Medicare patients.

diagnostic imaging	34
doctor visit	1135
eye procedures	4965
injections	1459
photocoagulation	14
ultrasound (sonogram)	34

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory M. Haffner, MD.

**Gender**
Male	372
Female	511

**Ethnicity**
Non-Hispanic White	766
Black	43
Hispanic	41
Asian	11
Other	22
Native American	0

**Age**
From 65 to 74	237
From 75 to 84	298
85 and over	301
Less than 65	47

Conditions of Medicare patients treated by Dr. Gregory M. Haffner, MD in 2017

Hypertension	70
High Cholesterol	48
Stroke	6
Ischemic Heart Disease	32
Depression	18
Chronic Kidney Disease	32
Asthma	7
Osteoperosis	11
Atrial Fibrilation	16
Heart Failure	21
Chronic Obstructive Pulmonary Disease	13
Diabetes	35
Dementia	12
Cancer	12

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Gregory M. Haffner, MD treated as a retina specialist in Old Greenwich, CT during 2018 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Gregory M. Haffner, MD for Medicare patients.

diagnostic imaging	31
doctor visit	1210
eye procedures	4824
injections	1392
photocoagulation	28
prophylaxis (preventive treatment)	14
ultrasound (sonogram)	31

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory M. Haffner, MD.

**Gender**
Male	351
Female	485

**Ethnicity**
Non-Hispanic White	718
Black	45
Hispanic	38
Asian	11
Other	24
Native American	0

**Age**
From 65 to 74	229
From 75 to 84	268
85 and over	287
Less than 65	52

Conditions of Medicare patients treated by Dr. Gregory M. Haffner, MD in 2018

Hypertension	73
High Cholesterol	61
Stroke	6
Ischemic Heart Disease	33
Depression	21
Chronic Kidney Disease	34
Asthma	7
Osteoperosis	10
Atrial Fibrilation	16
Heart Failure	24
Chronic Obstructive Pulmonary Disease	13
Diabetes	35
Dementia	14
Cancer	13

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Gregory M. Haffner, MD treated as a retina specialist in Old Greenwich, CT during 2019 were eye procedures, injections, photocoagulation and diagnostic imaging.

Volume of procedures performed by Dr. Gregory M. Haffner, MD for Medicare patients.

diagnostic imaging	14
doctor visit	1144
eye procedures	4364
injections	1287
photocoagulation	21
ultrasound (sonogram)	14

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory M. Haffner, MD.

**Gender**
Male	335
Female	445

**Ethnicity**
Non-Hispanic White	671
Black	37
Hispanic	42
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	217
From 75 to 84	249
85 and over	267
Less than 65	47

Conditions of Medicare patients treated by Dr. Gregory M. Haffner, MD in 2019

Hypertension	72
High Cholesterol	61
Stroke	6
Ischemic Heart Disease	32
Depression	22
Chronic Kidney Disease	33
Asthma	7
Osteoperosis	11
Atrial Fibrilation	15
Heart Failure	22
Chronic Obstructive Pulmonary Disease	13
Diabetes	34
Dementia	13
Cancer	11

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Gregory M. Haffner, MD treated as a retina specialist in Old Greenwich, CT during 2020 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Gregory M. Haffner, MD for Medicare patients.

diagnostic imaging	55
doctor visit	825
eye procedures	3805
injections	1160
ultrasound (sonogram)	55

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory M. Haffner, MD.

**Gender**
Male	299
Female	390

**Ethnicity**
Non-Hispanic White	587
Black	32
Hispanic	36
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	194
From 75 to 84	219
85 and over	234
Less than 65	42

Conditions of Medicare patients treated by Dr. Gregory M. Haffner, MD in 2020

Hypertension	68
High Cholesterol	63
Stroke	5
Ischemic Heart Disease	32
Depression	20
Chronic Kidney Disease	34
Asthma	6
Osteoperosis	12
Atrial Fibrilation	15
Heart Failure	22
Chronic Obstructive Pulmonary Disease	11
Diabetes	37
Dementia	13
Cancer	12

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Gregory M. Haffner, MD treated as a retina specialist in Old Greenwich, CT during 2021 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Gregory M. Haffner, MD for Medicare patients.

diagnostic imaging	42
doctor visit	656
eye procedures	4068
injections	1241
ultrasound (sonogram)	42

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory M. Haffner, MD.

**Gender**
Male	317
Female	435

**Ethnicity**
Non-Hispanic White	647
Black	36
Hispanic	0
Asian	0
Other	31
Native American	0

**Age**
From 65 to 74	221
From 75 to 84	248
85 and over	249
Less than 65	34

Conditions of Medicare patients treated by Dr. Gregory M. Haffner, MD in 2021

Hypertension	72
High Cholesterol	66
Stroke	6
Ischemic Heart Disease	33
Depression	20
Chronic Kidney Disease	33
Asthma	8
Osteoperosis	13
Atrial Fibrilation	14
Heart Failure	19
Chronic Obstructive Pulmonary Disease	10
Diabetes	32
Dementia	13
Cancer	11

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Gregory M. Haffner, MD treated as a retina specialist in Old Greenwich, CT during 2022 were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Gregory M. Haffner, MD for Medicare patients.

diagnostic imaging	32
doctor visit	443
eye procedures	4482
injections	1441
photocoagulation	11
prophylaxis (preventive treatment)	11
ultrasound (sonogram)	32

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory M. Haffner, MD.

**Gender**
Male	320
Female	449

**Ethnicity**
Non-Hispanic White	674
Black	28
Hispanic	0
Asian	0
Other	29
Native American	0

**Age**
From 65 to 74	215
From 75 to 84	258
85 and over	263
Less than 65	33

Conditions of Medicare patients treated by Dr. Gregory M. Haffner, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	28
Depression	17
Chronic Kidney Disease	24
Asthma	10
Osteoperosis	18
Atrial Fibrilation	21
Heart Failure	19
Chronic Obstructive Pulmonary Disease	14
Diabetes	29
Dementia	9
Cancer	16

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Gregory M. Haffner, MD for Medicare patients.

The highest averages for the top procedures that Dr. Gregory M. Haffner, MD treated as a retina specialist in Old Greenwich, CT were eye procedures, injections, diagnostic imaging and ultrasound (sonogram).

diagnostic imaging	47
doctor visit	734
eye procedures	5406
injections	1384
photocoagulation	47
prophylaxis (preventive treatment)	13
ultrasound (sonogram)	47

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Gregory M. Haffner, MD.

**Gender**
Male	396
Female	537

**Ethnicity**
Black / African American	44
Asian / Pacific Islander	5
Non-Hispanic White	813
Native American / Alaskan Native	0
Hispanic	35
Other	15

**Age**
75 to 84	300
85 and over	315
Less than 65	51
65 to 74	266

Average of Total of Conditions of Medicare patients treated by Dr. Gregory M. Haffner, MD From 2012 - 2022

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

Hypertension	65
High Cholesterol	55
Stroke	5
Ischemic Heart Disease	29
Depression	16
Chronic Kidney Disease	26
Asthma	7
Osteoporosis	10
Heart Failure	19
Chronic Obstructive Pulmonary Disease	11
Diabetes	31
Atrial Fibrillation	14
Dementia	11
Cancer	10

Education & Training

Dr. Gregory M. Haffner, MD graduated from National University of Ireland Galway, School of Medicine. He completed residency at Yale-New Haven Hospital. He has a state license in Connecticut.

Medical School: National University of Ireland Galway, School of Medicine

Residency: Yale-New Haven Hospital

Licensed In: Connecticut

Affiliations & Hospitals

Dr. Gregory M. Haffner, MD is associated with these hospitals and organizations:

Yale New Haven Health

Hartford Healthcare

Integrated Care Partners

Insurance Information

Please note: Insurance information may change at any time, and the provider may accept your insurance plan even if it is not listed below. Please contact the provider's office to confirm that your insurance is accepted.

Dr. Gregory M. Haffner, MD appears to accept the following insurance providers: CorVel, Great-West Healthcare, WellCare, Evercare, MultiPlan, United Healthcare, Aetna, Oxford Health Plans, Coventry, Cigna, Anthem, ConnectiCare, Focus Health Solutions, Prime Health, First Health, Private Healthcare Systems (PHCS), CarePartners of Connecticut, Senior Whole Health, Health Direct, HMC/ Northeast Healthcare, Colonial Cooperative Care, BCBS Medicare, Inc., Medspan Commercial, Health Connecticut, Health New England, Healthy Connecticut, Connecticare Commercial, Essence Healthcare, Medspan Medicare, Connecticare Medicare, Community Health Network of Connecticut and Northeast Health Direct.

Insurance Accepted by Provider includes:

According to our sources, Dr. Gregory M. Haffner, MD accepts the following insurance providers:

CorVel

Great-West Healthcare

WellCare

Evercare

MultiPlan

United Healthcare

Aetna

Oxford Health Plans

Coventry

Cigna

Anthem

ConnectiCare

Focus Health Solutions

Prime Health

First Health

Private Healthcare Systems (PHCS)

CarePartners of Connecticut

Senior Whole Health

Health Direct

HMC/ Northeast Healthcare

Colonial Cooperative Care

BCBS Medicare

Inc.

Medspan Commercial

Health Connecticut

Health New England

Healthy Connecticut

Connecticare Commercial

Essence Healthcare

Medspan Medicare

Connecticare Medicare

Community Health Network of Connecticut

Northeast Health Direct

Ratings & Reviews

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General Payments

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

**Payments by Company**
Genentech USA, Inc.	$420 LUCENTIS $236	VABYSMO $169	SUSVIMO $14
Regeneron Healthcare Solutions, Inc.	$370 Eylea $241	EYLEA aflibercept injection $54	EYLEA (aflibercept) Injection $51	EYLEA HD $23
Novartis Pharmaceuticals Corporation	$255 brolucizumab $56	BEOVU $46	$153
Allergan Inc.	$127 OZURDEX $127
AbbVie, Inc.	$119 Humira $119
Other	$242 ACTHAR $108	Cimerli $31	EPI-SENSE GUIDED COAGULATION SYSTEM WITH VISITRAX $25	OZURDEX $24	ILUVIEN $22	Other $32

**Types of Payments**
Food and Beverage	$1,487
Education	$45

Biography

Dr. Gregory Haffner is a vitreoretinal diseases (retina and vitreous) specialist in Hamden, CT, Westport, CT, and Old Greenwich, CT. After attending National University of Ireland Galway, School of Medicine, he completed his residency training at Yale-New Haven Hospital. Areas of particular interest for Dr. Haffner include retina surgery. He seems to honor Anthem, ConnectiCare, and Blue California, as well as other insurance carriers. Dr. Haffner's hospital/clinic affiliations include Hartford Healthcare and Yale New Haven Health. Yale New Haven Health reports that he is accepting new patients at his office in Hamden, CT.