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Dr. Jonathan A. Hammond JR., MD

Accepting New Patients

(1 Rating)

Specializes in: Cardiac Surgery

Harvard Medical School

Professional interests include: heart valve surgery, pacemaker, heart transplant, and more.

85 SEYMOUR STREET SUITE 919
HARTFORD, CT 06106

(860) 696-5520

Dr. Jonathan A. Hammond JR., MD is a cardiac surgeon in HARTFORD, CT specializing in cardiac surgery. He graduated from Harvard Medical School. Dr. Jonathan A. Hammond JR., MD is affiliated with Hartford Hospital, Hartford Healthcare, The Hospital of Central Connecticut Integrated Care Partners and Hartford HealthCare Medical Group.

Office Locations

85 SEYMOUR STREET SUITE 919
HARTFORD, CT 06106

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In The News

“Dr. Jonathan A. Hammond, surgical director of Hartford's heart transplant program, said he was happy with his program's improvement.”—"No Transplant Data Improvement", Los Angeles Times, July 2006

“But those insurers now guide patients to larger centers elsewhere, including Boston and even New York, said Dr. Jonathan A. Hammond, surgical director of its heart transplant program.”—"Feds Ignore Transplant Site Standards", Los Angeles Times, June 2006

“Every year, there are about 7,500 people in the United States on waiting lists for new hearts, and only about 2,500 receive transplants, largely because of a donor shortage, said Dr. Jonathan...”—"EXPERIMENTAL TRANSPLANT LEAVES PATIENT 1HEARTS OPERATION THAT HAS WORKED ON DOGS MIGHT BE TRIED ON HUMANS IN 6 MONTHS.", The Morning Call, July 2000

Noteworthy Medicare Patient Procedures Performed by Dr. Jonathan A. Hammond JR., MD in 2023

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

Top 25%

By Volume:

heart surgery

In 2012, Dr. Jonathan A. Hammond JR., MD performed more heart surgery procedures for Medicare patients than 75% of providers in related specialties within Connecticut.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Jonathan A. Hammond JR., MD treated as a cardiac surgeon in HARTFORD, CT during 2012 were cardiac procedures, thoracic (chest) surgery procedures, open surgery and bypass surgery.

Volume of procedures performed by Dr. Jonathan A. Hammond JR., MD for Medicare patients.

bypass surgery	24
cardiac procedures	117
doctor visit	34
implant surgery	11
minimally invasive procedures	11
open surgery	48
thoracic (chest) surgery procedures	48

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Jonathan A. Hammond JR., MD treated as a cardiac surgeon in HARTFORD, CT during 2013 were cardiac procedures, thoracic (chest) surgery procedures, open surgery and bypass surgery.

Volume of procedures performed by Dr. Jonathan A. Hammond JR., MD for Medicare patients.

bypass surgery	42
cardiac procedures	124
doctor visit	29
open surgery	84
thoracic (chest) surgery procedures	84

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Jonathan A. Hammond JR., MD.

**Gender**
Male	78
Female	37

**Ethnicity**
Non-Hispanic White	102
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	53
From 75 to 84	38
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Jonathan A. Hammond JR., MD in 2013

Hypertension	75
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	75
Depression	28
Chronic Kidney Disease	53
Asthma	10
Osteoperosis	0
Atrial Fibrilation	57
Heart Failure	68
Chronic Obstructive Pulmonary Disease	36
Diabetes	46
Dementia	0
Cancer	14

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Jonathan A. Hammond JR., MD treated as a cardiac surgeon in HARTFORD, CT during 2014 were cardiac procedures, thoracic (chest) surgery procedures, open surgery and bypass surgery.

Volume of procedures performed by Dr. Jonathan A. Hammond JR., MD for Medicare patients.

bypass surgery	37
cardiac procedures	120
doctor visit	31
open surgery	74
thoracic (chest) surgery procedures	74

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Jonathan A. Hammond JR., MD.

**Gender**
Male	70
Female	53

**Ethnicity**
Non-Hispanic White	105
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	47
From 75 to 84	36
85 and over	19
Less than 65	21

Conditions of Medicare patients treated by Dr. Jonathan A. Hammond JR., MD in 2014

Hypertension	75
High Cholesterol	75
Stroke	10
Ischemic Heart Disease	75
Depression	30
Chronic Kidney Disease	49
Asthma	11
Osteoperosis	9
Atrial Fibrilation	57
Heart Failure	70
Chronic Obstructive Pulmonary Disease	22
Diabetes	51
Dementia	11
Cancer	15

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Jonathan A. Hammond JR., MD treated as a cardiac surgeon in HARTFORD, CT during 2015 were cardiac procedures, thoracic (chest) surgery procedures, open surgery and bypass surgery.

Volume of procedures performed by Dr. Jonathan A. Hammond JR., MD for Medicare patients.

ablation	11
bypass surgery	40
cardiac procedures	158
doctor visit	35
implant surgery	11
minimally invasive procedures	11
open surgery	91
thoracic (chest) surgery procedures	91

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Jonathan A. Hammond JR., MD.

**Gender**
Male	204
Female	80

**Ethnicity**
Non-Hispanic White	238
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	116
From 75 to 84	96
85 and over	38
Less than 65	34

Conditions of Medicare patients treated by Dr. Jonathan A. Hammond JR., MD in 2015

Hypertension	75
High Cholesterol	75
Stroke	11
Ischemic Heart Disease	75
Depression	26
Chronic Kidney Disease	53
Asthma	18
Osteoperosis	0
Atrial Fibrilation	54
Heart Failure	75
Chronic Obstructive Pulmonary Disease	25
Diabetes	51
Dementia	14
Cancer	13

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Jonathan A. Hammond JR., MD treated as a cardiac surgeon in HARTFORD, CT during 2016 were cardiac procedures, thoracic (chest) surgery procedures, open surgery and bypass surgery.

Volume of procedures performed by Dr. Jonathan A. Hammond JR., MD for Medicare patients.

bypass surgery	28
cardiac procedures	86
doctor visit	32
open surgery	56
thoracic (chest) surgery procedures	56

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Jonathan A. Hammond JR., MD.

**Gender**
Male	66
Female	42

**Ethnicity**
Non-Hispanic White	86
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	42
From 75 to 84	32
85 and over	17
Less than 65	17

Conditions of Medicare patients treated by Dr. Jonathan A. Hammond JR., MD in 2016

Hypertension	75
High Cholesterol	75
Stroke	18
Ischemic Heart Disease	75
Depression	25
Chronic Kidney Disease	60
Asthma	27
Osteoperosis	0
Atrial Fibrilation	47
Heart Failure	70
Chronic Obstructive Pulmonary Disease	23
Diabetes	41
Dementia	19
Cancer	10

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Jonathan A. Hammond JR., MD treated as a cardiac surgeon in HARTFORD, CT during 2017 were cardiac procedures, thoracic (chest) surgery procedures, open surgery and bypass surgery.

Volume of procedures performed by Dr. Jonathan A. Hammond JR., MD for Medicare patients.

bypass surgery	43
cardiac procedures	142
doctor visit	40
open surgery	86
thoracic (chest) surgery procedures	86

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Jonathan A. Hammond JR., MD.

**Gender**
Male	86
Female	35

**Ethnicity**
Non-Hispanic White	103
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	54
From 75 to 84	42
85 and over	12
Less than 65	13

Conditions of Medicare patients treated by Dr. Jonathan A. Hammond JR., MD in 2017

Hypertension	75
High Cholesterol	75
Stroke	12
Ischemic Heart Disease	75
Depression	35
Chronic Kidney Disease	71
Asthma	18
Osteoperosis	0
Atrial Fibrilation	57
Heart Failure	74
Chronic Obstructive Pulmonary Disease	29
Diabetes	43
Dementia	17
Cancer	12

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Jonathan A. Hammond JR., MD treated as a cardiac surgeon in HARTFORD, CT during 2018 were thoracic (chest) surgery procedures, open surgery, cardiac procedures and bypass surgery.

Volume of procedures performed by Dr. Jonathan A. Hammond JR., MD for Medicare patients.

bypass surgery	36
cardiac procedures	72
doctor visit	25
open surgery	72
thoracic (chest) surgery procedures	72

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Jonathan A. Hammond JR., MD.

**Gender**
Male	60
Female	22

**Ethnicity**
Non-Hispanic White	65
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	36
From 75 to 84	29
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Jonathan A. Hammond JR., MD in 2018

Hypertension	75
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	75
Depression	33
Chronic Kidney Disease	70
Asthma	15
Osteoperosis	0
Atrial Fibrilation	45
Heart Failure	70
Chronic Obstructive Pulmonary Disease	33
Diabetes	56
Dementia	16
Cancer	0

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Jonathan A. Hammond JR., MD treated as a cardiac surgeon in HARTFORD, CT during 2019 were cardiac procedures, thoracic (chest) surgery procedures, open surgery and bypass surgery.

Volume of procedures performed by Dr. Jonathan A. Hammond JR., MD for Medicare patients.

bypass surgery	32
cardiac procedures	88
doctor visit	33
open surgery	64
thoracic (chest) surgery procedures	64

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Jonathan A. Hammond JR., MD.

**Gender**
Male	65
Female	31

**Ethnicity**
Non-Hispanic White	76
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	39
From 75 to 84	29
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Jonathan A. Hammond JR., MD in 2019

Hypertension	75
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	75
Depression	31
Chronic Kidney Disease	68
Asthma	0
Osteoperosis	0
Atrial Fibrilation	47
Heart Failure	66
Chronic Obstructive Pulmonary Disease	27
Diabetes	55
Dementia	0
Cancer	14

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Jonathan A. Hammond JR., MD treated as a cardiac surgeon in HARTFORD, CT during 2020 were thoracic (chest) surgery procedures, open surgery, cardiac procedures and bypass surgery.

Volume of procedures performed by Dr. Jonathan A. Hammond JR., MD for Medicare patients.

bypass surgery	18
cardiac procedures	36
doctor visit	16
open surgery	36
thoracic (chest) surgery procedures	36

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Jonathan A. Hammond JR., MD.

**Gender**
Male	42
Female	25

**Ethnicity**
Non-Hispanic White	52
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	26
From 75 to 84	27
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Jonathan A. Hammond JR., MD in 2020

Hypertension	75
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	75
Depression	34
Chronic Kidney Disease	75
Asthma	0
Osteoperosis	0
Atrial Fibrilation	37
Heart Failure	75
Chronic Obstructive Pulmonary Disease	0
Diabetes	45
Dementia	16
Cancer	0

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Jonathan A. Hammond JR., MD treated as a cardiac surgeon in HARTFORD, CT during 2021 were cardiac procedures, thoracic (chest) surgery procedures, open surgery and bypass surgery.

Volume of procedures performed by Dr. Jonathan A. Hammond JR., MD for Medicare patients.

bypass surgery	32
cardiac procedures	88
doctor visit	24
open surgery	64
thoracic (chest) surgery procedures	64

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Jonathan A. Hammond JR., MD.

**Gender**
Male	56
Female	27

**Ethnicity**
Non-Hispanic White	72
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	37
From 75 to 84	22
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Jonathan A. Hammond JR., MD in 2021

Hypertension	75
High Cholesterol	75
Stroke	13
Ischemic Heart Disease	75
Depression	27
Chronic Kidney Disease	73
Asthma	13
Osteoperosis	0
Atrial Fibrilation	40
Heart Failure	69
Chronic Obstructive Pulmonary Disease	25
Diabetes	53
Dementia	16
Cancer	16

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Jonathan A. Hammond JR., MD treated as a cardiac surgeon in HARTFORD, CT during 2022 were thoracic (chest) surgery procedures, open surgery, cardiac procedures and bypass surgery.

Volume of procedures performed by Dr. Jonathan A. Hammond JR., MD for Medicare patients.

bypass surgery	19
cardiac procedures	38
doctor visit	20
open surgery	38
thoracic (chest) surgery procedures	38

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Jonathan A. Hammond JR., MD.

**Gender**
Male	44
Female	11

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

**Age**
From 65 to 74	29
From 75 to 84	14
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Jonathan A. Hammond JR., MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	20
Ischemic Heart Disease	75
Depression	27
Chronic Kidney Disease	47
Asthma	0
Osteoperosis	0
Atrial Fibrilation	69
Heart Failure	58
Chronic Obstructive Pulmonary Disease	0
Diabetes	49
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Jonathan A. Hammond JR., MD for Medicare patients.

The highest averages for the top procedures that Dr. Jonathan A. Hammond JR., MD treated as a cardiac surgeon in HARTFORD, CT were cardiac procedures, thoracic (chest) surgery procedures, open surgery and bypass surgery.

ablation	11
bypass surgery	31
cardiac procedures	97
doctor visit	29
implant surgery	11
minimally invasive procedures	11
open surgery	64
thoracic (chest) surgery procedures	64

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Jonathan A. Hammond JR., MD.

**Gender**
Male	70
Female	33

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	85
Native American / Alaskan Native	0
Hispanic	0
Other	0

**Age**
75 to 84	33
85 and over	7
Less than 65	7
65 to 74	43

Average of Total of Conditions of Medicare patients treated by Dr. Jonathan A. Hammond JR., MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Jonathan A. Hammond JR., MD treated were high cholesterol, hypertension, ischemic heart disease and heart failure.

Hypertension	68
High Cholesterol	68
Stroke	7
Ischemic Heart Disease	68
Depression	26
Chronic Kidney Disease	56
Asthma	10
Osteoporosis	0
Heart Failure	63
Chronic Obstructive Pulmonary Disease	20
Diabetes	44
Atrial Fibrillation	46
Dementia	9
Cancer	8

Education & Training

Dr. Jonathan A. Hammond JR., MD graduated from Harvard Medical School. He completed residency at Hartford Hospital. He has a state license in Connecticut.

Medical School: Harvard Medical School

Residency: Hartford Hospital

Licensed In: Connecticut

Affiliations & Hospitals

Dr. Jonathan A. Hammond JR., MD is associated with these hospitals and organizations:

Hartford Hospital

Hartford Healthcare

The Hospital of Central Connecticut Integrated Care Partners

Hartford HealthCare Medical Group

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. Jonathan A. Hammond JR., 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, Colonial Cooperative Care, BCBS Medicare, Inc., Health Connecticut, Health New England, Healthy Connecticut, Connecticare Commercial, Essence Healthcare, Connecticare Medicare, Community Health Network of Connecticut and Northeast Health Direct.

Insurance Accepted by Provider includes:

According to our sources, Dr. Jonathan A. Hammond JR., 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

Colonial Cooperative Care

BCBS Medicare

Inc.

Health Connecticut

Health New England

Healthy Connecticut

Connecticare Commercial

Essence Healthcare

Connecticare Medicare

Community Health Network of Connecticut

Northeast Health Direct

Ratings & Reviews

Dr. Jonathan A. Hammond JR., MD has an exceptional overall rating with an average of 5.0 out of 5 stars based on 1 ratings. We collect ratings and reviews of Dr. Jonathan A. Hammond JR., MD from all over the web to help you find the right in HARTFORD, CT.

Overall Rating

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General Payments

These charts describe general payments received by Dr. Jonathan A. Hammond JR., MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
HeartWare, Inc.	$11,989 HeartWare Ventricular Assist System $11,989
Abbott Laboratories	$8,199 HeartMate 3 Left Ventricular Assist Device $5,895	Circulatory Support $1,247	CardioMEMS HF System $242	Epic Stented Tissue Valve $183	HeartMate 3 Left Ventricular Dev $182	Other $450
St. Jude Medical, Inc.	$2,401 HeartMate PHP $1,259	Vascular $629	Epic Stented Tissue Valve $385	Structural Heart $127
AtriCure, Inc.	$1,796 ATRICURE SYNERGY ABLATION SYSTEM $862	Cardiovascular $747	OLL2, OSL2, ASU2, ASB3 $115	COBRA FUSION 150 $47	EMR2, EML2 $24
Edwards Lifesciences Corporation	$1,637 Pericardial Heart Valves $488	Heart Valve Repair $117	Pericardial Heart Valve $105	$927
Other	$5,397 HeartMate II $1,570	HeartWare HVAD $1,460	Impella $704	COR KNOT $250	On-X $216	Other $1,196

**Types of Payments**
Travel and Lodging	$14,311
Food and Beverage	$11,329
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$5,775
Education	$5

Research Payments

Dr. Jonathan A. Hammond JR., MD has received 1 research payments totaling $5,000.

Biography

Dr. Jonathan Hammond is a Hartford, CT physician who specializes in cardiac surgery. His areas of clinical interest consist of heart transplant, heart bypass surgery (CABG), and heart valve surgery. Dr. Hammond usually is in-network for Anthem, ConnectiCare, and Blue California, as well as other insurance carriers. He attended Harvard Medical School and subsequently trained at Hartford Hospital for residency. His hospital/clinic affiliations include UConn Health and Hartford Hospital. He welcomes new patients at his office inHartford, CT as reported by Hartford Healthcare.

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Dr. Jonathan A. Hammond JR., MD

Office Locations

In The News

Noteworthy Medicare Patient Procedures Performed by Dr. Jonathan A. Hammond JR., MD in 2023

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. Jonathan A. Hammond JR., MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Jonathan A. Hammond JR., MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Jonathan A. Hammond JR., MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Jonathan A. Hammond JR., MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Jonathan A. Hammond JR., MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Jonathan A. Hammond JR., MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Jonathan A. Hammond JR., MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Jonathan A. Hammond JR., MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Jonathan A. Hammond JR., MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Jonathan A. Hammond JR., MD 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. Jonathan A. Hammond JR., MD From 2012 - 2022

Education & Training

Affiliations & Hospitals

Insurance Information

Ratings & Reviews

General Payments

Research Payments

Biography

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