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Dr. Nathan Alfons Kruger, MD, FACC

Accepting New Patients

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Specializes in: Adult Cardiology

Professional interests include: electrocardiogram (EKG), heart failure

111 Goose Lane Suite 2400
Guilford, CT 06437

(203) 747-7300

Dr. Nathan Alfons Kruger, MD, FACC is a cardiologist in Guilford, CT specializing in adult cardiology. Dr. Nathan Alfons Kruger, MD, FACC is affiliated with Yale Medicine and Yale New Haven Health.

Office Locations

111 Goose Lane Suite 2400
Guilford, CT 06437

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Yale New Haven Health

2 Devine Street Suite 1
North Haven, CT 06473

(203) 865-8614

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325 Boston Post Road Suite 1c
Orange, CT 06477

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Noteworthy Medicare Patient Procedures Performed by Dr. Nathan Alfons Kruger, MD, FACC in 2023

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

Top 10%

By Volume:

myocardial perfusion SPECT

nuclear scan

In 2023, Dr. Nathan Alfons Kruger, MD, FACC performed more myocardial perfusion SPECT, and nuclear scan procedures for Medicare patients than 90% of providers in related specialties within Connecticut.

Top 25%

By Volume:

cardiac stress testing

cardiac procedures

Doppler echocardiography

echocardiogram

ultrasound

By Affordability:

cardiac imaging

In 2012, among providers in related specialties within Connecticut, Dr. Nathan Alfons Kruger, MD, FACC performed more cardiac (heart) stress testing, cardiac procedures, Doppler echocardiography, echocardiogram (echo), and ultrasound (sonogram) procedures for Medicare patients than 75% of them and he also had a list price for cardiac imaging 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. Nathan Alfons Kruger, MD, FACC treated as a cardiologist in Guilford, CT during 2012 were hospital care, inpatient care, cardiac procedures and ultrasound (sonogram).

Volume of procedures performed by Dr. Nathan Alfons Kruger, MD, FACC for Medicare patients.

ambulatory monitoring	48
cardiac procedures	419
doctor visit	639
hospital care	516
inpatient care	516
lab tests	105
nuclear scan	100
stress testing	185
ultrasound (sonogram)	205

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Nathan Alfons Kruger, MD, FACC treated as a cardiologist in Guilford, CT during 2013 were cardiac procedures, hospital care, inpatient care and stress testing.

Volume of procedures performed by Dr. Nathan Alfons Kruger, MD, FACC for Medicare patients.

ambulatory monitoring	18
cardiac procedures	451
doctor visit	821
hospital care	417
inpatient care	417
lab tests	18
nuclear scan	160
stress testing	240
ultrasound (sonogram)	193

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Nathan Alfons Kruger, MD, FACC.

**Gender**
Male	491
Female	503

**Ethnicity**
Non-Hispanic White	865
Black	82
Hispanic	28
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	324
From 75 to 84	352
85 and over	240
Less than 65	78

Conditions of Medicare patients treated by Dr. Nathan Alfons Kruger, MD, FACC in 2013

Hypertension	75
High Cholesterol	67
Stroke	8
Ischemic Heart Disease	58
Depression	21
Chronic Kidney Disease	36
Asthma	8
Osteoperosis	9
Atrial Fibrilation	34
Heart Failure	42
Chronic Obstructive Pulmonary Disease	20
Diabetes	34
Dementia	13
Cancer	15

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Nathan Alfons Kruger, MD, FACC treated as a cardiologist in Guilford, CT during 2014 were cardiac procedures, hospital care, inpatient care and ultrasound (sonogram).

Volume of procedures performed by Dr. Nathan Alfons Kruger, MD, FACC for Medicare patients.

cardiac procedures	414
doctor visit	1218
hospital care	289
inpatient care	289
nuclear scan	132
stress testing	202
ultrasound (sonogram)	235

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Nathan Alfons Kruger, MD, FACC.

**Gender**
Male	478
Female	510

**Ethnicity**
Non-Hispanic White	848
Black	71
Hispanic	29
Asian	0
Other	25
Native American	0

**Age**
From 65 to 74	377
From 75 to 84	316
85 and over	215
Less than 65	80

Conditions of Medicare patients treated by Dr. Nathan Alfons Kruger, MD, FACC in 2014

Hypertension	75
High Cholesterol	66
Stroke	10
Ischemic Heart Disease	57
Depression	24
Chronic Kidney Disease	37
Asthma	9
Osteoperosis	7
Atrial Fibrilation	33
Heart Failure	40
Chronic Obstructive Pulmonary Disease	21
Diabetes	32
Dementia	13
Cancer	13

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Nathan Alfons Kruger, MD, FACC treated as a cardiologist in Guilford, CT during 2015 were cardiac procedures, hospital care, inpatient care and stress testing.

Volume of procedures performed by Dr. Nathan Alfons Kruger, MD, FACC for Medicare patients.

cardiac procedures	471
doctor visit	1283
hospital care	303
inpatient care	303
nuclear scan	160
stress testing	248
ultrasound (sonogram)	245

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Nathan Alfons Kruger, MD, FACC.

**Gender**
Male	1032
Female	1092

**Ethnicity**
Non-Hispanic White	1836
Black	154
Hispanic	56
Asian	0
Other	52
Native American	0

**Age**
From 65 to 74	744
From 75 to 84	752
85 and over	456
Less than 65	172

Conditions of Medicare patients treated by Dr. Nathan Alfons Kruger, MD, FACC in 2015

Hypertension	75
High Cholesterol	69
Stroke	9
Ischemic Heart Disease	57
Depression	24
Chronic Kidney Disease	36
Asthma	16
Osteoperosis	10
Atrial Fibrilation	31
Heart Failure	37
Chronic Obstructive Pulmonary Disease	21
Diabetes	32
Dementia	11
Cancer	15

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Nathan Alfons Kruger, MD, FACC treated as a cardiologist in Guilford, CT during 2016 were cardiac procedures, ultrasound (sonogram), stress testing and hospital care.

Volume of procedures performed by Dr. Nathan Alfons Kruger, MD, FACC for Medicare patients.

cardiac procedures	569
doctor visit	1438
hospital care	232
inpatient care	232
nuclear scan	181
stress testing	285
ultrasound (sonogram)	307

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Nathan Alfons Kruger, MD, FACC.

**Gender**
Male	551
Female	562

**Ethnicity**
Non-Hispanic White	962
Black	68
Hispanic	41
Asian	19
Other	23
Native American	0

**Age**
From 65 to 74	425
From 75 to 84	397
85 and over	218
Less than 65	73

Conditions of Medicare patients treated by Dr. Nathan Alfons Kruger, MD, FACC in 2016

Hypertension	75
High Cholesterol	68
Stroke	6
Ischemic Heart Disease	54
Depression	19
Chronic Kidney Disease	35
Asthma	22
Osteoperosis	10
Atrial Fibrilation	27
Heart Failure	32
Chronic Obstructive Pulmonary Disease	18
Diabetes	33
Dementia	12
Cancer	14

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Nathan Alfons Kruger, MD, FACC treated as a cardiologist in Guilford, CT during 2017 were cardiac procedures, ultrasound (sonogram), stress testing and hospital care.

Volume of procedures performed by Dr. Nathan Alfons Kruger, MD, FACC for Medicare patients.

cardiac procedures	559
doctor visit	1458
hospital care	228
inpatient care	228
nuclear scan	168
stress testing	283
ultrasound (sonogram)	308

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Nathan Alfons Kruger, MD, FACC.

**Gender**
Male	582
Female	599

**Ethnicity**
Non-Hispanic White	1008
Black	83
Hispanic	41
Asian	19
Other	30
Native American	0

**Age**
From 65 to 74	471
From 75 to 84	400
85 and over	222
Less than 65	88

Conditions of Medicare patients treated by Dr. Nathan Alfons Kruger, MD, FACC in 2017

Hypertension	75
High Cholesterol	60
Stroke	7
Ischemic Heart Disease	52
Depression	23
Chronic Kidney Disease	38
Asthma	10
Osteoperosis	9
Atrial Fibrilation	28
Heart Failure	32
Chronic Obstructive Pulmonary Disease	18
Diabetes	31
Dementia	11
Cancer	13

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Nathan Alfons Kruger, MD, FACC treated as a cardiologist in Guilford, CT during 2018 were cardiac procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. Nathan Alfons Kruger, MD, FACC for Medicare patients.

cardiac procedures	572
doctor visit	1259
hospital care	284
inpatient care	284
nuclear scan	147
stress testing	221
ultrasound (sonogram)	392

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Nathan Alfons Kruger, MD, FACC.

**Gender**
Male	598
Female	663

**Ethnicity**
Non-Hispanic White	1095
Black	70
Hispanic	44
Asian	21
Other	31
Native American	0

**Age**
From 65 to 74	444
From 75 to 84	488
85 and over	235
Less than 65	94

Conditions of Medicare patients treated by Dr. Nathan Alfons Kruger, MD, FACC in 2018

Hypertension	75
High Cholesterol	70
Stroke	8
Ischemic Heart Disease	53
Depression	22
Chronic Kidney Disease	37
Asthma	11
Osteoperosis	10
Atrial Fibrilation	29
Heart Failure	33
Chronic Obstructive Pulmonary Disease	17
Diabetes	30
Dementia	12
Cancer	14

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Nathan Alfons Kruger, MD, FACC treated as a cardiologist in Guilford, CT during 2019 were cardiac procedures, ultrasound (sonogram), stress testing and hospital care.

Volume of procedures performed by Dr. Nathan Alfons Kruger, MD, FACC for Medicare patients.

cardiac procedures	552
doctor visit	1066
hospital care	156
inpatient care	156
nuclear scan	138
stress testing	218
ultrasound (sonogram)	361

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Nathan Alfons Kruger, MD, FACC.

**Gender**
Male	709
Female	668

**Ethnicity**
Non-Hispanic White	1203
Black	66
Hispanic	40
Asian	17
Other	51
Native American	0

**Age**
From 65 to 74	526
From 75 to 84	514
85 and over	247
Less than 65	90

Conditions of Medicare patients treated by Dr. Nathan Alfons Kruger, MD, FACC in 2019

Hypertension	75
High Cholesterol	73
Stroke	7
Ischemic Heart Disease	54
Depression	25
Chronic Kidney Disease	38
Asthma	10
Osteoperosis	10
Atrial Fibrilation	28
Heart Failure	31
Chronic Obstructive Pulmonary Disease	16
Diabetes	31
Dementia	0
Cancer	14

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Nathan Alfons Kruger, MD, FACC treated as a cardiologist in Guilford, CT during 2020 were cardiac procedures, ultrasound (sonogram), stress testing and nuclear scan.

Volume of procedures performed by Dr. Nathan Alfons Kruger, MD, FACC for Medicare patients.

cardiac procedures	435
doctor visit	795
hospital care	13
inpatient care	13
nuclear scan	130
stress testing	150
ultrasound (sonogram)	305

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Nathan Alfons Kruger, MD, FACC.

**Gender**
Male	707
Female	584

**Ethnicity**
Non-Hispanic White	1116
Black	58
Hispanic	43
Asian	19
Other	55
Native American	0

**Age**
From 65 to 74	470
From 75 to 84	487
85 and over	246
Less than 65	88

Conditions of Medicare patients treated by Dr. Nathan Alfons Kruger, MD, FACC in 2020

Hypertension	75
High Cholesterol	75
Stroke	6
Ischemic Heart Disease	54
Depression	23
Chronic Kidney Disease	40
Asthma	11
Osteoperosis	10
Atrial Fibrilation	28
Heart Failure	33
Chronic Obstructive Pulmonary Disease	16
Diabetes	31
Dementia	11
Cancer	15

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Nathan Alfons Kruger, MD, FACC treated as a cardiologist in Guilford, CT during 2021 were cardiac procedures, ultrasound (sonogram), stress testing and nuclear scan.

Volume of procedures performed by Dr. Nathan Alfons Kruger, MD, FACC for Medicare patients.

cardiac procedures	519
doctor visit	973
hospital care	61
inpatient care	61
nuclear scan	135
stress testing	159
ultrasound (sonogram)	384

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Nathan Alfons Kruger, MD, FACC.

**Gender**
Male	842
Female	762

**Ethnicity**
Non-Hispanic White	1394
Black	72
Hispanic	63
Asian	17
Other	58
Native American	0

**Age**
From 65 to 74	575
From 75 to 84	600
85 and over	296
Less than 65	133

Conditions of Medicare patients treated by Dr. Nathan Alfons Kruger, MD, FACC in 2021

Hypertension	75
High Cholesterol	75
Stroke	7
Ischemic Heart Disease	53
Depression	24
Chronic Kidney Disease	41
Asthma	12
Osteoperosis	11
Atrial Fibrilation	28
Heart Failure	34
Chronic Obstructive Pulmonary Disease	16
Diabetes	32
Dementia	12
Cancer	15

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Nathan Alfons Kruger, MD, FACC treated as a cardiologist in Guilford, CT during 2022 were cardiac procedures, ultrasound (sonogram), stress testing and nuclear scan.

Volume of procedures performed by Dr. Nathan Alfons Kruger, MD, FACC for Medicare patients.

cardiac procedures	477
doctor visit	809
hospital care	55
inpatient care	55
nuclear scan	128
stress testing	145
ultrasound (sonogram)	349

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Nathan Alfons Kruger, MD, FACC.

**Gender**
Male	814
Female	741

**Ethnicity**
Non-Hispanic White	1380
Black	69
Hispanic	34
Asian	16
Other	56
Native American	0

**Age**
From 65 to 74	548
From 75 to 84	642
85 and over	261
Less than 65	104

Conditions of Medicare patients treated by Dr. Nathan Alfons Kruger, MD, FACC in 2022

Hypertension	75
High Cholesterol	75
Stroke	11
Ischemic Heart Disease	46
Depression	24
Chronic Kidney Disease	28
Asthma	16
Osteoperosis	16
Atrial Fibrilation	41
Heart Failure	34
Chronic Obstructive Pulmonary Disease	21
Diabetes	30
Dementia	9
Cancer	22

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Nathan Alfons Kruger, MD, FACC for Medicare patients.

The highest averages for the top procedures that Dr. Nathan Alfons Kruger, MD, FACC treated as a cardiologist in Guilford, CT were cardiac procedures, ultrasound (sonogram), hospital care and inpatient care.

ambulatory monitoring	33
cardiac procedures	494
doctor visit	1069
hospital care	232
inpatient care	232
lab tests	61
nuclear scan	143
stress testing	212
ultrasound (sonogram)	298

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Nathan Alfons Kruger, MD, FACC.

**Gender**
Female	607
Male	618

**Ethnicity**
Black / African American	72
Asian / Pacific Islander	11
Non-Hispanic White	1064
Native American / Alaskan Native	0
Hispanic	38
Other	34

**Age**
85 and over	239
75 to 84	449
Less than 65	90
65 to 74	445

Average of Total of Conditions of Medicare patients treated by Dr. Nathan Alfons Kruger, MD, FACC From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Nathan Alfons Kruger, MD, FACC treated were hypertension, high cholesterol, ischemic heart disease and chronic kidney disease.

Hypertension	68
High Cholesterol	63
Stroke	7
Ischemic Heart Disease	48
Depression	20
Chronic Kidney Disease	33
Asthma	11
Osteoporosis	9
Heart Failure	31
Chronic Obstructive Pulmonary Disease	16
Diabetes	28
Atrial Fibrillation	27
Dementia	9
Cancer	13

Education & Training

He completed residency at Yale-New Haven Hospital. He has a state license in Connecticut.

Residency: Yale-New Haven Hospital

Licensed In: Connecticut

Affiliations & Hospitals

Dr. Nathan Alfons Kruger, MD, FACC is associated with these hospitals and organizations:

Yale Medicine

Yale New Haven Health

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. Nathan Alfons Kruger, MD, FACC appears to accept the following insurance providers: CorVel, Great-West Healthcare, WellCare, MultiPlan, Community Care Network (CCN), United Healthcare, Aetna, Oxford Health Plans, Medicare, Consumer Health Network, Medicaid, Humana, Cigna, Anthem, ConnectiCare, Focus Health Solutions, Prime Health, First Health, Private Healthcare Systems (PHCS), TRICARE - HEALTH NET FEDERAL, COMPWORKS, HEALTHCARE VALUE MANAGEMENT, MANAGED COMP, TRICARE/CHAMPUS, HUSKY and PREFERRED HEALTH WORKS.

Insurance Accepted by Provider includes:

According to our sources, Dr. Nathan Alfons Kruger, MD, FACC accepts the following insurance providers:

CorVel

Great-West Healthcare

WellCare

MultiPlan

Community Care Network (CCN)

United Healthcare

Aetna

Oxford Health Plans

Medicare

Consumer Health Network

Medicaid

Humana

Cigna

Anthem

ConnectiCare

Focus Health Solutions

Prime Health

First Health

Private Healthcare Systems (PHCS)

TRICARE - HEALTH NET FEDERAL

COMPWORKS

HEALTHCARE VALUE MANAGEMENT

MANAGED COMP

TRICARE/CHAMPUS

HUSKY

PREFERRED HEALTH WORKS

Ratings & Reviews

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General Payments

These charts describe general payments received by Dr. Nathan Alfons Kruger, MD, FACC. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
AstraZeneca Pharmaceuticals LP	$24 $24

**Types of Payments**
Education	$24

Biography

Dr. Nathan Kruger works as an adult cardiology. Dr. Kruger's areas of expertise include nuclear cardiology, heart failure, and electrocardiogram (EKG). He seems to honor several insurance carriers, including Anthem, ConnectiCare, and Blue California. After attending New York Medical College for medical school, he completed his residency training at Yale-New Haven Hospital. Dr. Kruger's hospital/clinic affiliations include Yale Medicine and Yale New Haven Health. Yale New Haven Health reports that he is accepting new patients at his office in North Haven, CT.

Select Year:

Dr. Nathan Alfons Kruger, MD, FACC

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Nathan Alfons Kruger, MD, FACC in 2023

By Volume:

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. Nathan Alfons Kruger, MD, FACC in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Nathan Alfons Kruger, MD, FACC in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Nathan Alfons Kruger, MD, FACC in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Nathan Alfons Kruger, MD, FACC in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Nathan Alfons Kruger, MD, FACC in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Nathan Alfons Kruger, MD, FACC in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Nathan Alfons Kruger, MD, FACC in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Nathan Alfons Kruger, MD, FACC in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Nathan Alfons Kruger, MD, FACC in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Nathan Alfons Kruger, MD, FACC 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. Nathan Alfons Kruger, MD, FACC From 2012 - 2022

Education & Training

Affiliations & Hospitals

Insurance Information

Ratings & Reviews

General Payments

Biography

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