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Dr. Michael C. Ruddy, MD

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Specializes in: Nephrology (Kidney Disease)

UMDNJ-New Jersey Medical School (1974)

Professional interests include: polycystic kidney disease, renal artery stenosis, hyperaldosteronism, and more.

88 Princeton - Hightstown Road Suite 203
Princeton Junction, NJ 08550

(609) 750-7330

Dr. Michael C. Ruddy, MD is a nephrologist in Princeton Junction, NJ specializing in nephrology (kidney disease). He graduated from UMDNJ-New Jersey Medical School in 1974 and has 52 years of experience. Dr. Michael C. Ruddy, MD is affiliated with RWJBarnabas Health, Robert Wood Johnson University Hospital (RWJUH) and PRINCETON HYPERTENSION-NEPHROLOGY ASSOCIATES L L C.

Office Locations

88 Princeton - Hightstown Road Suite 203
Princeton Junction, NJ 08550

(609) 750-7330

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Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Michael C. Ruddy, MD treated as a nephrologist in Princeton Junction, NJ during 2012 were hospital care, inpatient care, lab tests and dialysis.

Volume of procedures performed by Dr. Michael C. Ruddy, MD for Medicare patients.

dialysis	18
doctor visit	983
hospital care	808
inpatient care	808
lab tests	28

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Michael C. Ruddy, MD treated as a nephrologist in Princeton Junction, NJ during 2013 were hospital care, inpatient care and lab tests.

Volume of procedures performed by Dr. Michael C. Ruddy, MD for Medicare patients.

doctor visit	964
hospital care	737
inpatient care	737
lab tests	22

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael C. Ruddy, MD.

**Gender**
Male	315
Female	300

**Ethnicity**
Non-Hispanic White	521
Black	40
Hispanic	0
Asian	29
Other	0
Native American	0

**Age**
From 65 to 74	176
From 75 to 84	216
85 and over	183
Less than 65	40

Conditions of Medicare patients treated by Dr. Michael C. Ruddy, MD in 2013

Hypertension	75
High Cholesterol	75
Stroke	13
Ischemic Heart Disease	59
Depression	27
Chronic Kidney Disease	75
Asthma	10
Osteoperosis	13
Atrial Fibrilation	26
Heart Failure	44
Chronic Obstructive Pulmonary Disease	20
Diabetes	52
Dementia	25
Cancer	18

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Michael C. Ruddy, MD treated as a nephrologist in Princeton Junction, NJ during 2014 were hospital care and inpatient care.

Volume of procedures performed by Dr. Michael C. Ruddy, MD for Medicare patients.

doctor visit	964
hospital care	845
inpatient care	845

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael C. Ruddy, MD.

**Gender**
Male	327
Female	324

**Ethnicity**
Non-Hispanic White	541
Black	45
Hispanic	21
Asian	31
Other	13
Native American	0

**Age**
From 65 to 74	203
From 75 to 84	216
85 and over	191
Less than 65	41

Conditions of Medicare patients treated by Dr. Michael C. Ruddy, MD in 2014

Hypertension	75
High Cholesterol	75
Stroke	12
Ischemic Heart Disease	55
Depression	26
Chronic Kidney Disease	75
Asthma	9
Osteoperosis	11
Atrial Fibrilation	25
Heart Failure	44
Chronic Obstructive Pulmonary Disease	16
Diabetes	48
Dementia	22
Cancer	14

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Michael C. Ruddy, MD treated as a nephrologist in Princeton Junction, NJ during 2015 were hospital care and inpatient care.

Volume of procedures performed by Dr. Michael C. Ruddy, MD for Medicare patients.

doctor visit	974
hospital care	589
inpatient care	589

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael C. Ruddy, MD.

**Gender**
Male	640
Female	590

**Ethnicity**
Non-Hispanic White	1028
Black	76
Hispanic	42
Asian	52
Other	32
Native American	0

**Age**
From 65 to 74	408
From 75 to 84	424
85 and over	334
Less than 65	64

Conditions of Medicare patients treated by Dr. Michael C. Ruddy, MD in 2015

Hypertension	75
High Cholesterol	75
Stroke	15
Ischemic Heart Disease	55
Depression	25
Chronic Kidney Disease	75
Asthma	11
Osteoperosis	9
Atrial Fibrilation	23
Heart Failure	41
Chronic Obstructive Pulmonary Disease	15
Diabetes	48
Dementia	20
Cancer	17

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Michael C. Ruddy, MD treated as a nephrologist in Princeton Junction, NJ during 2016 were hospital care and inpatient care.

Volume of procedures performed by Dr. Michael C. Ruddy, MD for Medicare patients.

doctor visit	1065
hospital care	225
inpatient care	225

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael C. Ruddy, MD.

**Gender**
Male	229
Female	224

**Ethnicity**
Non-Hispanic White	383
Black	29
Hispanic	15
Asian	15
Other	11
Native American	0

**Age**
From 65 to 74	165
From 75 to 84	160
85 and over	111
Less than 65	17

Conditions of Medicare patients treated by Dr. Michael C. Ruddy, MD in 2016

Hypertension	75
High Cholesterol	75
Stroke	12
Ischemic Heart Disease	52
Depression	23
Chronic Kidney Disease	75
Asthma	19
Osteoperosis	8
Atrial Fibrilation	19
Heart Failure	33
Chronic Obstructive Pulmonary Disease	14
Diabetes	47
Dementia	15
Cancer	19

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Michael C. Ruddy, MD treated as a nephrologist in Princeton Junction, NJ during 2017 were hospital care and inpatient care.

Volume of procedures performed by Dr. Michael C. Ruddy, MD for Medicare patients.

doctor visit	913
hospital care	195
inpatient care	195

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael C. Ruddy, MD.

**Gender**
Male	219
Female	206

**Ethnicity**
Non-Hispanic White	351
Black	26
Hispanic	16
Asian	18
Other	14
Native American	0

**Age**
From 65 to 74	148
From 75 to 84	163
85 and over	89
Less than 65	25

Conditions of Medicare patients treated by Dr. Michael C. Ruddy, MD in 2017

Hypertension	75
High Cholesterol	75
Stroke	11
Ischemic Heart Disease	52
Depression	24
Chronic Kidney Disease	75
Asthma	12
Osteoperosis	10
Atrial Fibrilation	21
Heart Failure	36
Chronic Obstructive Pulmonary Disease	13
Diabetes	46
Dementia	16
Cancer	16

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Michael C. Ruddy, MD treated as a nephrologist in Princeton Junction, NJ during 2018 were hospital care and inpatient care.

Volume of procedures performed by Dr. Michael C. Ruddy, MD for Medicare patients.

doctor visit	761
hospital care	219
inpatient care	219

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael C. Ruddy, MD.

**Gender**
Male	218
Female	186

**Ethnicity**
Non-Hispanic White	335
Black	24
Hispanic	17
Asian	17
Other	11
Native American	0

**Age**
From 65 to 74	150
From 75 to 84	142
85 and over	91
Less than 65	21

Conditions of Medicare patients treated by Dr. Michael C. Ruddy, MD in 2018

Hypertension	75
High Cholesterol	75
Stroke	11
Ischemic Heart Disease	52
Depression	28
Chronic Kidney Disease	75
Asthma	9
Osteoperosis	10
Atrial Fibrilation	22
Heart Failure	35
Chronic Obstructive Pulmonary Disease	13
Diabetes	41
Dementia	17
Cancer	16

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Michael C. Ruddy, MD treated as a nephrologist in Princeton Junction, NJ during 2019 were hospital care and inpatient care.

Volume of procedures performed by Dr. Michael C. Ruddy, MD for Medicare patients.

doctor visit	783
hospital care	238
inpatient care	238

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael C. Ruddy, MD.

**Gender**
Male	231
Female	185

**Ethnicity**
Non-Hispanic White	337
Black	23
Hispanic	12
Asian	27
Other	17
Native American	0

**Age**
From 65 to 74	143
From 75 to 84	159
85 and over	89
Less than 65	25

Conditions of Medicare patients treated by Dr. Michael C. Ruddy, MD in 2019

Hypertension	75
High Cholesterol	75
Stroke	12
Ischemic Heart Disease	50
Depression	25
Chronic Kidney Disease	75
Asthma	7
Osteoperosis	7
Atrial Fibrilation	20
Heart Failure	38
Chronic Obstructive Pulmonary Disease	14
Diabetes	47
Dementia	17
Cancer	15

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Michael C. Ruddy, MD treated as a nephrologist in Princeton Junction, NJ during 2020 were hospital care and inpatient care.

Volume of procedures performed by Dr. Michael C. Ruddy, MD for Medicare patients.

doctor visit	630
hospital care	163
inpatient care	163

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael C. Ruddy, MD.

**Gender**
Male	203
Female	144

**Ethnicity**
Non-Hispanic White	282
Black	17
Hispanic	0
Asian	25
Other	0
Native American	0

**Age**
From 65 to 74	119
From 75 to 84	137
85 and over	73
Less than 65	18

Conditions of Medicare patients treated by Dr. Michael C. Ruddy, MD in 2020

Hypertension	75
High Cholesterol	75
Stroke	12
Ischemic Heart Disease	47
Depression	23
Chronic Kidney Disease	75
Asthma	8
Osteoperosis	9
Atrial Fibrilation	19
Heart Failure	36
Chronic Obstructive Pulmonary Disease	12
Diabetes	46
Dementia	17
Cancer	15

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Michael C. Ruddy, MD treated as a nephrologist in Princeton Junction, NJ during 2021 were hospital care and inpatient care.

Volume of procedures performed by Dr. Michael C. Ruddy, MD for Medicare patients.

doctor visit	682
hospital care	150
inpatient care	150

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael C. Ruddy, MD.

**Gender**
Male	216
Female	140

**Ethnicity**
Non-Hispanic White	290
Black	24
Hispanic	0
Asian	18
Other	0
Native American	0

**Age**
From 65 to 74	121
From 75 to 84	141
85 and over	74
Less than 65	20

Conditions of Medicare patients treated by Dr. Michael C. Ruddy, MD in 2021

Hypertension	75
High Cholesterol	75
Stroke	10
Ischemic Heart Disease	49
Depression	23
Chronic Kidney Disease	75
Asthma	8
Osteoperosis	10
Atrial Fibrilation	19
Heart Failure	38
Chronic Obstructive Pulmonary Disease	11
Diabetes	45
Dementia	16
Cancer	18

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Michael C. Ruddy, MD treated as a nephrologist in Princeton Junction, NJ during 2022 were hospital care and inpatient care.

Volume of procedures performed by Dr. Michael C. Ruddy, MD for Medicare patients.

doctor visit	555
hospital care	104
inpatient care	104

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael C. Ruddy, MD.

**Gender**
Male	176
Female	145

**Ethnicity**
Non-Hispanic White	255
Black	23
Hispanic	0
Asian	0
Other	18
Native American	0

**Age**
From 65 to 74	99
From 75 to 84	135
85 and over	72
Less than 65	15

Conditions of Medicare patients treated by Dr. Michael C. Ruddy, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	18
Ischemic Heart Disease	35
Depression	21
Chronic Kidney Disease	75
Asthma	11
Osteoperosis	13
Atrial Fibrilation	31
Heart Failure	29
Chronic Obstructive Pulmonary Disease	15
Diabetes	43
Dementia	8
Cancer	19

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Michael C. Ruddy, MD for Medicare patients.

The highest averages for the top procedures that Dr. Michael C. Ruddy, MD treated as a nephrologist in Princeton Junction, NJ were hospital care, inpatient care, lab tests and dialysis.

dialysis	18
doctor visit	843
hospital care	388
inpatient care	388
lab tests	25

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Michael C. Ruddy, MD.

**Gender**
Male	252
Female	222

**Ethnicity**
Black / African American	29
Asian / Pacific Islander	21
Non-Hispanic White	393
Native American / Alaskan Native	0
Hispanic	11
Other	10

**Age**
75 to 84	172
85 and over	118
Less than 65	26
65 to 74	157

Average of Total of Conditions of Medicare patients treated by Dr. Michael C. Ruddy, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Michael C. Ruddy, MD treated were chronic kidney disease, high cholesterol, hypertension and ischemic heart disease.

Hypertension	68
High Cholesterol	68
Stroke	11
Ischemic Heart Disease	46
Depression	22
Chronic Kidney Disease	68
Asthma	9
Osteoporosis	9
Heart Failure	34
Chronic Obstructive Pulmonary Disease	13
Diabetes	42
Atrial Fibrillation	20
Dementia	15
Cancer	15

Education & Training

Dr. Michael C. Ruddy, MD graduated from UMDNJ-New Jersey Medical School in 1974. He completed residency at Robert Wood Johnson University Hospital. He is certified by the Board certifications: Internal Medicine and has a state license in New Jersey.

Medical School: UMDNJ-New Jersey Medical School (1974)

Residency: Robert Wood Johnson University Hospital

Board Certification: Board certifications: Internal Medicine (1977)

Licensed In: New Jersey

Affiliations & Hospitals

Dr. Michael C. Ruddy, MD is associated with these hospitals and organizations:

RWJBarnabas Health

Robert Wood Johnson University Hospital (RWJUH)

PRINCETON HYPERTENSION-NEPHROLOGY ASSOCIATES L L C

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General Payments

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

**Payments by Company**
Otsuka America Pharmaceutical, Inc.	$229 JYNARQUE $229
Relypsa, Inc.	$159 VELTASSA $159
Fresenius USA Marketing, Inc.	$73 Velphoro $32	Dialyzers $24	KORSUVA $17
Aurinia Pharma U.S., Inc.	$48 LUPKYNIS $48
Amgen Inc.	$42 Parsabiv $25	Sensipar $16
Other	$230 Compression $38	TARPEYO $33	VELTASSA $25	Kerendia $22	KORSUVA $19	Other $92

**Types of Payments**
Food and Beverage	$767
Education	$14

Research Payments

Dr. Michael C. Ruddy, MD has received 3 research payments totaling $5,806.

Biography

Dr. Michael Ruddy's specialty is nephrology (kidney disease). Dr. Ruddy attended UMDNJ-Robert Wood Johnson Medical School and UMDNJ-New Jersey Medical School and then went on to complete his residency at Robert Wood Johnson University Hospital. His clinical interests include renal artery stenosis, polycystic kidney disease, and proteinuria (protein in urine). He has received the distinction of Recognized annually in Philadelphia magazine's Top Docs issue from through. He is professionally affiliated with Robert Wood Johnson University Hospital (RWJUH). Dr. Ruddy welcomes new patients at his office inPrinceton Junction, NJ as reported by Penn Medicine.