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Home > AZ Providers > Hospitalists

Dr. Rahool S. Karnik, MD

Accepting New Patients

(4 Ratings)

Specializes in: Hospital Medicine (Hospitalist), Adult Cardiology and Adult Critical Care

Tufts University School of Medicine (2002)

18700 N 64th Drive Suite 201
Glendale, AZ 85308

1-888-310-7258

Dr. Rahool S. Karnik, MD is a hospitalist in Glendale, AZ specializing in hospital medicine (hospitalist), adult cardiology and adult critical care. He graduated from Tufts University School of Medicine in 2002 and has 24 years of experience. Dr. Rahool S. Karnik, MD is affiliated with Deer Valley Medical Center, Scottsdale Thompson Peak Medical Center, Scottsdale Shea Medical Center, Scottsdale Osborn Medical Center, Sonoran Crossing Medical Center, Honor Health and John C Lincoln Medical Center.

Office Locations

18700 N 64th Drive Suite 201
Glendale, AZ 85308

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26900 N Lake Pleasant Parkway Suite 210
Peoria, AZ 85383

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Noteworthy Medicare Patient Procedures Performed by Dr. Rahool S. Karnik, MD in 2023

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

Top 5%

By Volume:

inpatient hospital care

In 2023, Dr. Rahool S. Karnik, MD performed more inpatient hospital care (for patient admitted to hospital) procedures for Medicare patients than 95% of providers in related specialties within Arizona.

Top 25%

By Volume:

stress EKG

By Affordability:

cardiac stress testing

cardiac imaging

stress testing

In 2012, among providers in related specialties within Arizona, Dr. Rahool S. Karnik, MD performed more stress EKG procedures for Medicare patients than 75% of them and he also had a list price for cardiac (heart) stress testing, cardiac imaging, and stress testing 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. Rahool S. Karnik, MD treated as a hospitalist in Glendale, AZ during 2012 were hospital care, inpatient care, ultrasound (sonogram) and cardiac procedures.

Volume of procedures performed by Dr. Rahool S. Karnik, MD for Medicare patients.

abdominal imaging	38
blood draw	121
cardiac procedures	338
doctor visit	653
hospital care	765
inpatient care	765
lab tests	123
minimally invasive procedures	11
nuclear scan	40
pelvic imaging	38
stress testing	108
ultrasound (sonogram)	357
vascular procedures	127

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Rahool S. Karnik, MD treated as a hospitalist in Glendale, AZ during 2013 were hospital care, inpatient care, cardiac procedures and ultrasound (sonogram).

Volume of procedures performed by Dr. Rahool S. Karnik, MD for Medicare patients.

abdominal imaging	19
blood draw	74
cardiac procedures	454
doctor visit	808
hospital care	920
inpatient care	920
lab tests	74
minimally invasive procedures	22
nuclear scan	52
pelvic imaging	19
stress testing	135
ultrasound (sonogram)	406
vascular procedures	87

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Rahool S. Karnik, MD.

**Gender**
Male	454
Female	451

**Ethnicity**
Non-Hispanic White	810
Black	26
Hispanic	31
Asian	22
Other	0
Native American	0

**Age**
From 65 to 74	393
From 75 to 84	292
85 and over	146
Less than 65	74

Conditions of Medicare patients treated by Dr. Rahool S. Karnik, MD in 2013

Hypertension	75
High Cholesterol	75
Stroke	14
Ischemic Heart Disease	60
Depression	25
Chronic Kidney Disease	45
Asthma	14
Osteoperosis	12
Atrial Fibrilation	34
Heart Failure	33
Chronic Obstructive Pulmonary Disease	28
Diabetes	38
Dementia	16
Cancer	14

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Rahool S. Karnik, MD treated as a hospitalist in Glendale, AZ during 2014 were hospital care, inpatient care, cardiac procedures and ultrasound (sonogram).

Volume of procedures performed by Dr. Rahool S. Karnik, MD for Medicare patients.

blood draw	96
cardiac procedures	539
doctor visit	923
hospital care	959
inpatient care	959
lab tests	96
nuclear scan	70
stress testing	168
ultrasound (sonogram)	472
vascular procedures	101

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Rahool S. Karnik, MD.

**Gender**
Male	446
Female	428

**Ethnicity**
Non-Hispanic White	776
Black	25
Hispanic	42
Asian	15
Other	0
Native American	0

**Age**
From 65 to 74	376
From 75 to 84	262
85 and over	159
Less than 65	77

Conditions of Medicare patients treated by Dr. Rahool S. Karnik, MD in 2014

Hypertension	75
High Cholesterol	75
Stroke	12
Ischemic Heart Disease	63
Depression	25
Chronic Kidney Disease	44
Asthma	13
Osteoperosis	11
Atrial Fibrilation	35
Heart Failure	37
Chronic Obstructive Pulmonary Disease	28
Diabetes	39
Dementia	17
Cancer	14

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Rahool S. Karnik, MD treated as a hospitalist in Glendale, AZ during 2015 were hospital care, inpatient care, ultrasound (sonogram) and cardiac procedures.

Volume of procedures performed by Dr. Rahool S. Karnik, MD for Medicare patients.

abdominal imaging	25
blood draw	157
cardiac procedures	431
doctor visit	1034
hospital care	880
inpatient care	880
lab tests	158
nuclear scan	59
pelvic imaging	25
stress testing	146
ultrasound (sonogram)	437
vascular procedures	152

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Rahool S. Karnik, MD.

**Gender**
Male	826
Female	754

**Ethnicity**
Non-Hispanic White	1380
Black	42
Hispanic	94
Asian	42
Other	0
Native American	0

**Age**
From 65 to 74	702
From 75 to 84	484
85 and over	260
Less than 65	134

Conditions of Medicare patients treated by Dr. Rahool S. Karnik, MD in 2015

Hypertension	75
High Cholesterol	75
Stroke	15
Ischemic Heart Disease	61
Depression	23
Chronic Kidney Disease	48
Asthma	19
Osteoperosis	10
Atrial Fibrilation	34
Heart Failure	37
Chronic Obstructive Pulmonary Disease	25
Diabetes	39
Dementia	17
Cancer	14

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Rahool S. Karnik, MD treated as a hospitalist in Glendale, AZ during 2016 were hospital care, inpatient care, ultrasound (sonogram) and cardiac procedures.

Volume of procedures performed by Dr. Rahool S. Karnik, MD for Medicare patients.

abdominal imaging	36
blood draw	222
cardiac procedures	401
doctor visit	1199
hospital care	1017
inpatient care	1017
lab tests	223
minimally invasive procedures	14
nuclear scan	42
pelvic imaging	36
stress testing	119
ultrasound (sonogram)	468
vascular procedures	186

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Rahool S. Karnik, MD.

**Gender**
Male	423
Female	383

**Ethnicity**
Non-Hispanic White	702
Black	25
Hispanic	44
Asian	14
Other	0
Native American	0

**Age**
From 65 to 74	359
From 75 to 84	270
85 and over	122
Less than 65	55

Conditions of Medicare patients treated by Dr. Rahool S. Karnik, MD in 2016

Hypertension	75
High Cholesterol	75
Stroke	13
Ischemic Heart Disease	63
Depression	22
Chronic Kidney Disease	49
Asthma	31
Osteoperosis	10
Atrial Fibrilation	37
Heart Failure	38
Chronic Obstructive Pulmonary Disease	26
Diabetes	40
Dementia	20
Cancer	15

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Rahool S. Karnik, MD treated as a hospitalist in Glendale, AZ during 2017 were hospital care, inpatient care, lab tests and ultrasound (sonogram).

Volume of procedures performed by Dr. Rahool S. Karnik, MD for Medicare patients.

abdominal imaging	33
blood draw	466
cardiac procedures	490
doctor visit	1809
hospital care	1040
inpatient care	1040
lab tests	696
nuclear scan	36
pelvic imaging	33
stress testing	134
ultrasound (sonogram)	551
vascular procedures	195

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Rahool S. Karnik, MD.

**Gender**
Male	461
Female	443

**Ethnicity**
Non-Hispanic White	798
Black	28
Hispanic	37
Asian	18
Other	0
Native American	0

**Age**
From 65 to 74	405
From 75 to 84	304
85 and over	131
Less than 65	64

Conditions of Medicare patients treated by Dr. Rahool S. Karnik, MD in 2017

Hypertension	75
High Cholesterol	71
Stroke	12
Ischemic Heart Disease	62
Depression	23
Chronic Kidney Disease	49
Asthma	10
Osteoperosis	10
Atrial Fibrilation	37
Heart Failure	38
Chronic Obstructive Pulmonary Disease	26
Diabetes	38
Dementia	18
Cancer	12

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Rahool S. Karnik, MD treated as a hospitalist in Glendale, AZ during 2018 were hospital care, inpatient care, ultrasound (sonogram) and cardiac procedures.

Volume of procedures performed by Dr. Rahool S. Karnik, MD for Medicare patients.

abdominal imaging	38
cardiac procedures	552
doctor visit	1938
hospital care	1188
inpatient care	1188
lab tests	151
nuclear scan	27
pelvic imaging	38
stress testing	150
ultrasound (sonogram)	657
vascular procedures	255

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Rahool S. Karnik, MD.

**Gender**
Male	502
Female	476

**Ethnicity**
Non-Hispanic White	880
Black	16
Hispanic	40
Asian	0
Other	22
Native American	0

**Age**
From 65 to 74	425
From 75 to 84	344
85 and over	152
Less than 65	57

Conditions of Medicare patients treated by Dr. Rahool S. Karnik, MD in 2018

Hypertension	75
High Cholesterol	75
Stroke	13
Ischemic Heart Disease	59
Depression	27
Chronic Kidney Disease	49
Asthma	10
Osteoperosis	12
Atrial Fibrilation	38
Heart Failure	39
Chronic Obstructive Pulmonary Disease	26
Diabetes	37
Dementia	19
Cancer	15

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Rahool S. Karnik, MD treated as a hospitalist in Glendale, AZ during 2019 were hospital care, inpatient care, ultrasound (sonogram) and cardiac procedures.

Volume of procedures performed by Dr. Rahool S. Karnik, MD for Medicare patients.

abdominal imaging	69
cardiac procedures	572
doctor visit	1541
hospital care	1176
inpatient care	1176
lab tests	194
minimally invasive procedures	14
nuclear scan	26
pelvic imaging	69
stress testing	152
ultrasound (sonogram)	750
vascular procedures	330

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Rahool S. Karnik, MD.

**Gender**
Male	480
Female	456

**Ethnicity**
Non-Hispanic White	853
Black	16
Hispanic	40
Asian	0
Other	16
Native American	0

**Age**
From 65 to 74	427
From 75 to 84	330
85 and over	143
Less than 65	36

Conditions of Medicare patients treated by Dr. Rahool S. Karnik, MD in 2019

Hypertension	75
High Cholesterol	75
Stroke	11
Ischemic Heart Disease	57
Depression	25
Chronic Kidney Disease	49
Asthma	10
Osteoperosis	12
Atrial Fibrilation	34
Heart Failure	34
Chronic Obstructive Pulmonary Disease	24
Diabetes	36
Dementia	16
Cancer	13

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Rahool S. Karnik, MD treated as a hospitalist in Glendale, AZ during 2020 were hospital care, inpatient care, cardiac procedures and stress testing.

Volume of procedures performed by Dr. Rahool S. Karnik, MD for Medicare patients.

cardiac procedures	476
doctor visit	1525
hospital care	955
inpatient care	955
lab tests	226
stress testing	273
ultrasound (sonogram)	238
vascular procedures	35

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Rahool S. Karnik, MD.

**Gender**
Male	588
Female	507

**Ethnicity**
Non-Hispanic White	971
Black	17
Hispanic	47
Asian	19
Other	25
Native American	16

**Age**
From 65 to 74	501
From 75 to 84	376
85 and over	170
Less than 65	48

Conditions of Medicare patients treated by Dr. Rahool S. Karnik, MD in 2020

Hypertension	75
High Cholesterol	75
Stroke	10
Ischemic Heart Disease	60
Depression	22
Chronic Kidney Disease	50
Asthma	11
Osteoperosis	9
Atrial Fibrilation	32
Heart Failure	36
Chronic Obstructive Pulmonary Disease	21
Diabetes	36
Dementia	15
Cancer	14

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Rahool S. Karnik, MD treated as a hospitalist in Glendale, AZ during 2021 were hospital care, inpatient care, cardiac procedures and stress testing.

Volume of procedures performed by Dr. Rahool S. Karnik, MD for Medicare patients.

cardiac procedures	461
cardioversion	13
doctor visit	1437
hospital care	934
inpatient care	934
lab tests	114
stress testing	299
ultrasound (sonogram)	162

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Rahool S. Karnik, MD.

**Gender**
Male	602
Female	519

**Ethnicity**
Non-Hispanic White	999
Black	16
Hispanic	55
Asian	0
Other	31
Native American	0

**Age**
From 65 to 74	483
From 75 to 84	440
85 and over	156
Less than 65	42

Conditions of Medicare patients treated by Dr. Rahool S. Karnik, MD in 2021

Hypertension	75
High Cholesterol	75
Stroke	10
Ischemic Heart Disease	62
Depression	21
Chronic Kidney Disease	47
Asthma	10
Osteoperosis	12
Atrial Fibrilation	32
Heart Failure	29
Chronic Obstructive Pulmonary Disease	18
Diabetes	35
Dementia	14
Cancer	11

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Rahool S. Karnik, MD treated as a hospitalist in Glendale, AZ during 2022 were hospital care, inpatient care, cardiac procedures and stress testing.

Volume of procedures performed by Dr. Rahool S. Karnik, MD for Medicare patients.

cardiac procedures	473
cardioversion	17
doctor visit	1281
hospital care	758
inpatient care	758
minimally invasive procedures	18
stress testing	278
ultrasound (sonogram)	195

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Rahool S. Karnik, MD.

**Gender**
Male	477
Female	489

**Ethnicity**
Non-Hispanic White	864
Black	0
Hispanic	47
Asian	16
Other	21
Native American	0

**Age**
From 65 to 74	414
From 75 to 84	414
85 and over	123
Less than 65	15

Conditions of Medicare patients treated by Dr. Rahool S. Karnik, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	15
Ischemic Heart Disease	52
Depression	20
Chronic Kidney Disease	32
Asthma	13
Osteoperosis	17
Atrial Fibrilation	38
Heart Failure	26
Chronic Obstructive Pulmonary Disease	21
Diabetes	33
Dementia	8
Cancer	16

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Rahool S. Karnik, MD for Medicare patients.

The highest averages for the top procedures that Dr. Rahool S. Karnik, MD treated as a hospitalist in Glendale, AZ were inpatient care, hospital care, cardiac procedures and ultrasound (sonogram).

abdominal imaging	36
blood draw	189
cardiac procedures	471
cardioversion	15
doctor visit	1286
hospital care	962
inpatient care	962
lab tests	205
minimally invasive procedures	15
nuclear scan	44
pelvic imaging	36
stress testing	178
ultrasound (sonogram)	426
vascular procedures	163

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Rahool S. Karnik, MD.

**Gender**
Male	478
Female	446

**Ethnicity**
Black / African American	19
Asian / Pacific Islander	13
Non-Hispanic White	821
Native American / Alaskan Native	1
Hispanic	43
Other	10

**Age**
75 to 84	319
85 and over	142
Less than 65	54
65 to 74	407

Average of Total of Conditions of Medicare patients treated by Dr. Rahool S. Karnik, MD From 2012 - 2022

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

Hypertension	68
High Cholesterol	67
Stroke	11
Ischemic Heart Disease	54
Depression	21
Chronic Kidney Disease	42
Asthma	12
Osteoporosis	10
Heart Failure	31
Chronic Obstructive Pulmonary Disease	22
Diabetes	33
Atrial Fibrillation	31
Dementia	14
Cancer	12

Education & Training

Dr. Rahool S. Karnik, MD graduated from Tufts University School of Medicine in 2002. He completed residency at University of California College of Medicine. He is certified by the American Board of Internal Medicine: Cardiovascular Disease and has a state license in Arizona.

Medical School: Tufts University School of Medicine (2002)

Residency: University of California College of Medicine (2005)

Board Certification: American Board of Internal Medicine: Cardiovascular Disease

Licensed In: Arizona

Affiliations & Hospitals

Dr. Rahool S. Karnik, MD is associated with these hospitals and organizations:

Deer Valley Medical Center

Scottsdale Thompson Peak Medical Center

Scottsdale Shea Medical Center

Scottsdale Osborn Medical Center

Sonoran Crossing Medical Center

Honor Health

John C Lincoln Medical Center

Ratings & Reviews

Dr. Rahool S. Karnik, MD has an exceptional overall rating with an average of 5.0 out of 5 stars based on 4 ratings. We collect ratings and reviews of Dr. Rahool S. Karnik, MD from all over the web to help you find the right in Glendale, AZ.

Overall Rating

(4 Ratings)

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Reviews From Around The Web

Overall Rating: 5.0 2025-10-22

Patient verified via Press Ganey

I absolutely adore Dr. Karnik. He is so caring and has the most amazing personality! I feel very fortunate to call him my cardiologist.

Overall Rating: 5.0 2025-10-20

Patient verified via Press Ganey

Dr Karnik is outstanding! I know I am always in good hands with him.

Overall Rating: 5.0 2025-11-07

Patient verified via Press Ganey

Happy I didn't loose him.

Overall Rating: 5.0 2025-10-20

Patient verified via Press Ganey

Excellent

General Payments

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

**Payments by Company**
BIOTRONIK INC.	$5,693 Bradycardia products $4,131	Solia $125	BioMonitor $120	Eluna $112	Iperia $110	Other $1,094
Boston Scientific Corporation	$4,218 GENERAL THERAPIES $1,844	GENERAL - BRADY GENERATORS $764	WATCHMAN $627	THE LATITUDE PATIENT MANAGEMENT SYSTEM $342	Brady Generator $193	Other $447
Abbott Laboratories	$3,816 Confirm Rx $1,104	CardioMEMS HF System $945	Vascular $388	Quadra Allure MP RF CRT Pacemkr $297	Quartet CRT Lead $222	Other $859
St. Jude Medical, Inc.	$3,380 Electrophysiology $2,869	Unify Assura $150	Fortify Assura and Ellipse $127	CardioMEMS HF System $122	CRM $112
Medtronic Vascular, Inc.	$2,436 Implantable Cardioverter Defibrillators - ICDs $1,007	CoreValve Evolut $470	Amplia MRI $240	Cardiac Resynchronization Therapy - CRT $190	STENTS $95	Other $435
Other	$11,585 ELIQUIS $1,330	ENTRESTO $910	BRILINTA $859	Repatha $790	Carto 3 System $707	Other $6,989

**Types of Payments**
Food and Beverage	$24,938
Travel and Lodging	$4,988
Compensation for serving as faculty or as a speaker for a non-accredited and noncertified continuing education program	$800
Education	$401

Research Payments

Dr. Rahool S. Karnik, MD has received 1 research payments totaling $4,693.

Biography

Dr. Rahool Karnik practices adult critical care, adult cardiology, and hospital medicine (hospitalist) in Phoenix, AZ, Glendale, AZ, and Peoria, AZ. Dr. Karnik's patients gave him an average rating of 5.0 stars (out of 5). He is a graduate of Tufts University School of Medicine. His hospital/clinic affiliations include Scottsdale Osborn Medical Center, Scottsdale Shea Medical Center, and Deer Valley Medical Center. Dr. Karnik has an open panel in Glendale, AZ according to Doctor.com.