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Dr. William Norman Hamstra, MD, DO

(5 Ratings)

Specializes in: General Surgery

Ohio State University College of Medicine

7373 West Lane
Stockton, CA 95210

(209) 476-2000

Dr. William Norman Hamstra, MD, DO is a general surgeon in San Ramon, CA specializing in general surgery. He graduated from Ohio State University College of Medicine. Dr. William Norman Hamstra, MD, DO is affiliated with Dignity Health and St Joseph's Medical Center Stockton/Behavioral Health.

Office Locations

2305 Camino Ramon Suite 217
San Ramon, CA 94583

(925) 447-0660

(925) 443-7506

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4601 Dale Road
Modesto, CA 95356

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St Joseph's Medical Center Stockton/Behavioral Health

7373 West Lane
Stockton, CA 95210

(209) 476-2000

(209) 476-5108

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In The News

“Bill's family extend their gratitude to his oncologist at California Pacific Medical Center, David Minor, M.D. for his positive support and for keeping Bill among the small minority who win the...”—"William Francis Adams", East Bay Times, May 2014

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. William Norman Hamstra, MD, DO treated as a general surgeon in San Ramon, CA during 2012 were hospital care and inpatient care.

Volume of procedures performed by Dr. William Norman Hamstra, MD, DO for Medicare patients.

doctor visit	92
hospital care	95
inpatient care	95

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. William Norman Hamstra, MD, DO treated as a general surgeon in San Ramon, CA during 2013 were hospital care and inpatient care.

Volume of procedures performed by Dr. William Norman Hamstra, MD, DO for Medicare patients.

doctor visit	48
hospital care	53
inpatient care	53

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. William Norman Hamstra, MD, DO.

**Gender**
Male	39
Female	45

**Ethnicity**
Non-Hispanic White	67
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	35
From 75 to 84	23
85 and over	13
Less than 65	13

Conditions of Medicare patients treated by Dr. William Norman Hamstra, MD, DO in 2013

Hypertension	74
High Cholesterol	64
Stroke	0
Ischemic Heart Disease	31
Depression	21
Chronic Kidney Disease	30
Asthma	17
Osteoperosis	0
Atrial Fibrilation	25
Heart Failure	21
Chronic Obstructive Pulmonary Disease	0
Diabetes	25
Dementia	14
Cancer	27

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. William Norman Hamstra, MD, DO treated as a general surgeon in San Ramon, CA during 2014 were hospital care and inpatient care.

Volume of procedures performed by Dr. William Norman Hamstra, MD, DO for Medicare patients.

doctor visit	90
hospital care	18
inpatient care	18

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. William Norman Hamstra, MD, DO.

**Gender**
Male	34
Female	43

**Ethnicity**
Non-Hispanic White	62
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	36
From 75 to 84	26
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. William Norman Hamstra, MD, DO in 2014

Hypertension	69
High Cholesterol	66
Stroke	0
Ischemic Heart Disease	23
Depression	18
Chronic Kidney Disease	26
Asthma	0
Osteoperosis	0
Atrial Fibrilation	14
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	32
Dementia	0
Cancer	19

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. William Norman Hamstra, MD, DO treated as a general surgeon in San Ramon, CA during 2015 were hospital care and inpatient care.

Volume of procedures performed by Dr. William Norman Hamstra, MD, DO for Medicare patients.

doctor visit	77
hospital care	115
inpatient care	115

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. William Norman Hamstra, MD, DO.

**Gender**
Male	86
Female	100

**Ethnicity**
Non-Hispanic White	132
Black	0
Hispanic	0
Asian	22
Other	0
Native American	0

**Age**
From 65 to 74	78
From 75 to 84	60
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. William Norman Hamstra, MD, DO in 2015

Hypertension	71
High Cholesterol	46
Stroke	0
Ischemic Heart Disease	26
Depression	26
Chronic Kidney Disease	25
Asthma	17
Osteoperosis	0
Atrial Fibrilation	13
Heart Failure	13
Chronic Obstructive Pulmonary Disease	0
Diabetes	27
Dementia	13
Cancer	18

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

Volume of procedures performed by Dr. William Norman Hamstra, MD, DO for Medicare patients.

doctor visit	69

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. William Norman Hamstra, MD, DO.

**Gender**
Male	42
Female	29

**Age**
From 65 to 74	35
From 75 to 84	22
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. William Norman Hamstra, MD, DO in 2016

Hypertension	73
High Cholesterol	65
Stroke	0
Ischemic Heart Disease	24
Depression	18
Chronic Kidney Disease	39
Asthma	17
Osteoperosis	0
Atrial Fibrilation	20
Heart Failure	17
Chronic Obstructive Pulmonary Disease	0
Diabetes	25
Dementia	15
Cancer	0

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

Volume of procedures performed by Dr. William Norman Hamstra, MD, DO for Medicare patients.

doctor visit	56

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. William Norman Hamstra, MD, DO.

**Gender**
Male	28
Female	21

**Age**
From 65 to 74	23
From 75 to 84	15
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. William Norman Hamstra, MD, DO in 2017

Hypertension	63
High Cholesterol	45
Stroke	0
Ischemic Heart Disease	0
Depression	0
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2017

Volume of procedures performed by Dr. William Norman Hamstra, MD, DO for Medicare patients.

The highest averages for the top procedures that Dr. William Norman Hamstra, MD, DO treated as a general surgeon in San Ramon, CA were hospital care and inpatient care.

doctor visit	72
hospital care	70
inpatient care	70

Average Medicare Patient Data From 2012 - 2017

Information about Medicare patients treated by Dr. William Norman Hamstra, MD, DO.

**Gender**
Male	38
Female	39

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	3
Non-Hispanic White	43
Native American / Alaskan Native	0
Hispanic	0
Other	0

**Age**
75 to 84	24
85 and over	2
Less than 65	2
65 to 74	34

Average of Total of Conditions of Medicare patients treated by Dr. William Norman Hamstra, MD, DO From 2012 - 2017

The highest averages of the most common conditions of Medicare patients that Dr. William Norman Hamstra, MD, DO treated were hypertension, high cholesterol, chronic kidney disease and diabetes.

Hypertension	58
High Cholesterol	47
Stroke	0
Ischemic Heart Disease	17
Depression	13
Chronic Kidney Disease	20
Asthma	8
Osteoporosis	0
Heart Failure	8
Chronic Obstructive Pulmonary Disease	0
Diabetes	18
Atrial Fibrillation	12
Dementia	7
Cancer	10

Education & Training

Dr. William Norman Hamstra, MD, DO graduated from Ohio State University College of Medicine. He completed residency at Riverside Osteopathic Hospital, Trenton. He is certified by the Am Os Bd Surgery General and has a state license in California.

Medical School: Ohio State University College of Medicine

Residency: Riverside Osteopathic Hospital, Trenton

Board Certification: Am Os Bd Surgery General

Licensed In: California

Affiliations & Hospitals

Dr. William Norman Hamstra, MD, DO is associated with these hospitals and organizations:

Dignity Health

St Joseph's Medical Center Stockton/Behavioral Health

Ratings & Reviews

Dr. William Norman Hamstra, MD, DO has an exceptional overall rating with an average of 5.0 out of 5 stars based on 5 ratings. We collect ratings and reviews of Dr. William Norman Hamstra, MD, DO from all over the web to help you find the right in San Ramon, CA.

Overall Rating

(5 Ratings)

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General Payments

These charts describe general payments received by Dr. William Norman Hamstra, MD, DO. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Intuitive Surgical, Inc.	$10,154 Da Vinci Surgical System $10,154
Intuitive Surgical Operations, Inc.	$5,670 Da Vinci Surgical System $5,670
Auris Health, Inc.	$2,900 Monarch $2,900
Ethicon Inc.	$1,584 Endoscopy# Endocutters $1,015	Energy# Harmonic $356	Mesh $213
Ethicon US, LLC	$1,016 Endoscopy: Endocutters $824	Synthetics $116	Sutures $47	Biologics $11	Band $11	Other $7
Other	$1,612 STRATTICE $443	Energy# Harmonic $213	AlloDerm $192	Ovitex $160	BIO-A Tissue Reinforcement $135	Other $469

**Types of Payments**
Education	$7,000
Travel and Lodging	$5,665
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$5,000
Food and Beverage	$2,821
Consulting Fee	$2,450

Biography

Dr. William Hamstra specializes in general surgery and practices in San Ramon, CA, Stockton, CA, and Modesto, CA. Dr. Hamstra attended Oklahoma State University Center for Health Sciences, College of Osteopathic Medicine and Ohio State University College of Medicine for medical school and subsequently trained at Riverside Osteopathic Hospital, Trenton for residency. He is rated highly by his patients. He is affiliated with Dignity Health. Dignity Health reports that he is closed to new patients at this time.