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Dr. John Y. Hess, MD

(4 Ratings)

Specializes in: Adult Cardiology

2220 Lynn Road 201
Thousand Oaks, CA 91360

(805) 494-9494

Dr. John Y. Hess, MD is a cardiologist in Thousand Oaks, CA specializing in adult cardiology.

Office Locations

2220 Lynn Road 201
Thousand Oaks, CA 91360

(805) 494-9494

(805) 374-9994

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In The News

“I would hope to think that the lack of competition wouldn't allow for complacency to set in," said Dr. John Hess, a cardiologist who practices at Westlake and Los Robles.”—"Doctors Criticize Plan for Merger of Hospitals as a Monopoly : Medicine: Some physicians say that if the chain that owns Los Robles takes over Westlake facility, it would eliminate competition and lower the standard of care.", Los Angeles Times, May 1995

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. John Y. Hess, MD treated as a cardiologist in Thousand Oaks, CA during 2012 were cardiac procedures, stress testing, ultrasound (sonogram) and nuclear scan.

Volume of procedures performed by Dr. John Y. Hess, MD for Medicare patients.

ambulatory monitoring	111
cardiac procedures	1140
catheterization	14
diagnostic procedures	14
doctor visit	2236
hospital care	198
inpatient care	198
minimally invasive procedures	14
nuclear scan	290
stress testing	736
ultrasound (sonogram)	510
vascular procedures	231

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. John Y. Hess, MD treated as a cardiologist in Thousand Oaks, CA during 2013 were cardiac procedures, stress testing, ultrasound (sonogram) and nuclear scan.

Volume of procedures performed by Dr. John Y. Hess, MD for Medicare patients.

ambulatory monitoring	99
cardiac procedures	1186
catheterization	22
diagnostic procedures	22
doctor visit	2297
hospital care	311
inpatient care	297
minimally invasive procedures	22
nuclear scan	323
stress testing	746
ultrasound (sonogram)	552
vascular procedures	268

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. John Y. Hess, MD.

**Gender**
Male	436
Female	446

**Ethnicity**
Non-Hispanic White	837
Black	0
Hispanic	16
Asian	13
Other	0
Native American	0

**Age**
From 65 to 74	374
From 75 to 84	338
85 and over	152
Less than 65	18

Conditions of Medicare patients treated by Dr. John Y. Hess, MD in 2013

Hypertension	74
High Cholesterol	75
Stroke	7
Ischemic Heart Disease	75
Depression	14
Chronic Kidney Disease	19
Asthma	8
Osteoperosis	11
Atrial Fibrilation	21
Heart Failure	22
Chronic Obstructive Pulmonary Disease	11
Diabetes	27
Dementia	10
Cancer	14

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. John Y. Hess, MD treated as a cardiologist in Thousand Oaks, CA during 2014 were cardiac procedures, stress testing, ultrasound (sonogram) and nuclear scan.

Volume of procedures performed by Dr. John Y. Hess, MD for Medicare patients.

ambulatory monitoring	74
cardiac procedures	1209
catheterization	20
diagnostic procedures	20
doctor visit	2302
hospital care	190
inpatient care	190
minimally invasive procedures	20
nuclear scan	316
stress testing	777
ultrasound (sonogram)	579
vascular procedures	267

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. John Y. Hess, MD.

**Gender**
Male	462
Female	447

**Ethnicity**
Non-Hispanic White	856
Black	0
Hispanic	20
Asian	16
Other	0
Native American	0

**Age**
From 65 to 74	373
From 75 to 84	353
85 and over	170
Less than 65	13

Conditions of Medicare patients treated by Dr. John Y. Hess, MD in 2014

Hypertension	75
High Cholesterol	75
Stroke	7
Ischemic Heart Disease	75
Depression	15
Chronic Kidney Disease	21
Asthma	9
Osteoperosis	11
Atrial Fibrilation	21
Heart Failure	23
Chronic Obstructive Pulmonary Disease	12
Diabetes	27
Dementia	10
Cancer	12

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. John Y. Hess, MD treated as a cardiologist in Thousand Oaks, CA during 2015 were cardiac procedures, stress testing, ultrasound (sonogram) and hospital care.

Volume of procedures performed by Dr. John Y. Hess, MD for Medicare patients.

ambulatory monitoring	48
cardiac procedures	1213
catheterization	25
diagnostic procedures	25
doctor visit	2578
hospital care	362
inpatient care	362
minimally invasive procedures	25
nuclear scan	315
stress testing	728
ultrasound (sonogram)	567
vascular procedures	206

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. John Y. Hess, MD.

**Gender**
Male	942
Female	908

**Ethnicity**
Non-Hispanic White	1728
Black	0
Hispanic	36
Asian	38
Other	0
Native American	0

**Age**
From 65 to 74	796
From 75 to 84	678
85 and over	352
Less than 65	24

Conditions of Medicare patients treated by Dr. John Y. Hess, MD in 2015

Hypertension	75
High Cholesterol	75
Stroke	7
Ischemic Heart Disease	75
Depression	15
Chronic Kidney Disease	22
Asthma	14
Osteoperosis	10
Atrial Fibrilation	21
Heart Failure	22
Chronic Obstructive Pulmonary Disease	14
Diabetes	29
Dementia	10
Cancer	15

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. John Y. Hess, MD treated as a cardiologist in Thousand Oaks, CA during 2016 were cardiac procedures, stress testing, ultrasound (sonogram) and hospital care.

Volume of procedures performed by Dr. John Y. Hess, MD for Medicare patients.

ambulatory monitoring	48
cardiac procedures	1235
catheterization	15
diagnostic procedures	15
doctor visit	2800
hospital care	481
inpatient care	481
minimally invasive procedures	15
nuclear scan	310
stress testing	741
ultrasound (sonogram)	556
vascular procedures	172

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. John Y. Hess, MD.

**Gender**
Male	509
Female	495

**Ethnicity**
Non-Hispanic White	918
Black	0
Hispanic	29
Asian	26
Other	0
Native American	0

**Age**
From 65 to 74	442
From 75 to 84	375
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. John Y. Hess, MD in 2016

Hypertension	75
High Cholesterol	75
Stroke	6
Ischemic Heart Disease	75
Depression	16
Chronic Kidney Disease	28
Asthma	19
Osteoperosis	10
Atrial Fibrilation	24
Heart Failure	22
Chronic Obstructive Pulmonary Disease	16
Diabetes	29
Dementia	10
Cancer	14

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. John Y. Hess, MD treated as a cardiologist in Thousand Oaks, CA during 2017 were cardiac procedures, stress testing, ultrasound (sonogram) and hospital care.

Volume of procedures performed by Dr. John Y. Hess, MD for Medicare patients.

ambulatory monitoring	33
cardiac procedures	1084
catheterization	19
diagnostic procedures	19
doctor visit	2575
hospital care	332
inpatient care	332
minimally invasive procedures	19
nuclear scan	280
stress testing	679
ultrasound (sonogram)	549
vascular procedures	217

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. John Y. Hess, MD.

**Gender**
Male	486
Female	489

**Ethnicity**
Non-Hispanic White	895
Black	0
Hispanic	26
Asian	0
Other	28
Native American	0

**Age**
From 65 to 74	400
From 75 to 84	385
85 and over	178
Less than 65	12

Conditions of Medicare patients treated by Dr. John Y. Hess, MD in 2017

Hypertension	75
High Cholesterol	46
Stroke	6
Ischemic Heart Disease	68
Depression	17
Chronic Kidney Disease	30
Asthma	11
Osteoperosis	10
Atrial Fibrilation	23
Heart Failure	20
Chronic Obstructive Pulmonary Disease	14
Diabetes	28
Dementia	9
Cancer	13

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. John Y. Hess, MD treated as a cardiologist in Thousand Oaks, CA during 2018 were cardiac procedures, stress testing, ultrasound (sonogram) and nuclear scan.

Volume of procedures performed by Dr. John Y. Hess, MD for Medicare patients.

ambulatory monitoring	11
cardiac procedures	1173
doctor visit	2536
hospital care	176
inpatient care	176
nuclear scan	302
stress testing	738
ultrasound (sonogram)	699
vascular procedures	260

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. John Y. Hess, MD.

**Gender**
Male	524
Female	517

**Ethnicity**
Non-Hispanic White	948
Black	0
Hispanic	29
Asian	0
Other	32
Native American	0

**Age**
From 65 to 74	429
From 75 to 84	419
85 and over	182
Less than 65	11

Conditions of Medicare patients treated by Dr. John Y. Hess, MD in 2018

Hypertension	75
High Cholesterol	75
Stroke	7
Ischemic Heart Disease	68
Depression	17
Chronic Kidney Disease	30
Asthma	11
Osteoperosis	11
Atrial Fibrilation	22
Heart Failure	18
Chronic Obstructive Pulmonary Disease	13
Diabetes	30
Dementia	9
Cancer	12

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. John Y. Hess, MD treated as a cardiologist in Thousand Oaks, CA during 2019 were cardiac procedures, stress testing, ultrasound (sonogram) and nuclear scan.

Volume of procedures performed by Dr. John Y. Hess, MD for Medicare patients.

cardiac procedures	1223
doctor visit	2663
hospital care	245
inpatient care	245
nuclear scan	339
sleep study	117
stress testing	799
ultrasound (sonogram)	746
vascular procedures	304

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. John Y. Hess, MD.

**Gender**
Male	507
Female	484

**Ethnicity**
Non-Hispanic White	902
Black	0
Hispanic	29
Asian	0
Other	34
Native American	0

**Age**
From 65 to 74	388
From 75 to 84	408
85 and over	184
Less than 65	11

Conditions of Medicare patients treated by Dr. John Y. Hess, MD in 2019

Hypertension	75
High Cholesterol	75
Stroke	7
Ischemic Heart Disease	67
Depression	19
Chronic Kidney Disease	31
Asthma	9
Osteoperosis	11
Atrial Fibrilation	22
Heart Failure	18
Chronic Obstructive Pulmonary Disease	13
Diabetes	28
Dementia	10
Cancer	13

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. John Y. Hess, MD treated as a cardiologist in Thousand Oaks, CA during 2020 were cardiac procedures, ultrasound (sonogram), stress testing and vascular procedures.

Volume of procedures performed by Dr. John Y. Hess, MD for Medicare patients.

cardiac procedures	717
doctor visit	1927
hospital care	52
inpatient care	52
nuclear scan	173
sleep study	11
stress testing	445
ultrasound (sonogram)	501
vascular procedures	189

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. John Y. Hess, MD.

**Gender**
Male	409
Female	426

**Ethnicity**
Non-Hispanic White	756
Black	0
Hispanic	25
Asian	0
Other	29
Native American	0

**Age**
From 65 to 74	314
From 75 to 84	360
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. John Y. Hess, MD in 2020

Hypertension	75
High Cholesterol	75
Stroke	6
Ischemic Heart Disease	62
Depression	18
Chronic Kidney Disease	29
Asthma	8
Osteoperosis	14
Atrial Fibrilation	21
Heart Failure	20
Chronic Obstructive Pulmonary Disease	14
Diabetes	27
Dementia	9
Cancer	13

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2020

Volume of procedures performed by Dr. John Y. Hess, MD for Medicare patients.

The highest averages for the top procedures that Dr. John Y. Hess, MD treated as a cardiologist in Thousand Oaks, CA were cardiac procedures, stress testing, ultrasound (sonogram) and nuclear scan.

ambulatory monitoring	60
cardiac procedures	1131
catheterization	19
diagnostic procedures	19
doctor visit	2434
hospital care	260
inpatient care	259
minimally invasive procedures	19
nuclear scan	294
sleep study	64
stress testing	709
ultrasound (sonogram)	584
vascular procedures	234

Average Medicare Patient Data From 2012 - 2020

Information about Medicare patients treated by Dr. John Y. Hess, MD.

**Gender**
Male	475
Female	468

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	10
Non-Hispanic White	871
Native American / Alaskan Native	0
Hispanic	23
Other	13

**Age**
75 to 84	368
85 and over	135
Less than 65	9
65 to 74	390

Average of Total of Conditions of Medicare patients treated by Dr. John Y. Hess, MD From 2012 - 2020

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

Hypertension	66
High Cholesterol	63
Stroke	5
Ischemic Heart Disease	62
Depression	14
Chronic Kidney Disease	23
Asthma	9
Osteoporosis	9
Heart Failure	18
Chronic Obstructive Pulmonary Disease	11
Diabetes	25
Atrial Fibrillation	19
Dementia	8
Cancer	11

Education & Training

He has a state license in California.

Licensed In: California

Ratings & Reviews

Dr. John Y. Hess, MD has a high overall rating with an average of 3.75 out of 5 stars based on 4 ratings. We collect ratings and reviews of Dr. John Y. Hess, MD from all over the web to help you find the right in Thousand Oaks, CA.

3.75

Overall Rating

(4 Ratings)

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General Payments

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

**Payments by Company**
Amgen Inc.	$780 Repatha $752	$27
Medtronic Vascular, Inc.	$665 Azure $104	Claria MRI $100	Cardiac Monitors - Insertable $90	Cardiac Resynchronization Therapy - CRT $74	Visia AF $61	Other $236
Abbott Laboratories	$556 Fortify Assura $151	Mitra Clip system $102	Accent Pacemaker $99	Connectivity and Remote care $93	Assurity Pacemaker $62	Other $49
Novartis Pharmaceuticals Corporation	$365 ENTRESTO $365
Amarin Pharma Inc.	$335 Vascepa $335
Other	$2,441 XARELTO $291	ELIQUIS $224	BRILINTA $168	Bradycardia products $140	Edwards SAPIEN 3 Transcatheter Heart Valve $125	Other $1,494

**Types of Payments**
Food and Beverage	$4,933
Education	$209

Biography

Dr. John Hess works as an adult cardiology. The average patient rating for Dr. Hess is 3.5 stars (out of 5).

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Dr. John Y. Hess, MD

Office Locations

In The News

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. John Y. Hess, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Y. Hess, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Y. Hess, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Y. Hess, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Y. Hess, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Y. Hess, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Y. Hess, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Y. Hess, MD in 2020

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2020

Average Medicare Patient Data From 2012 - 2020

Average of Total of Conditions of Medicare patients treated by Dr. John Y. Hess, MD From 2012 - 2020

Education & Training

Ratings & Reviews

General Payments

Biography

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