Procedure Volume Patient Data Patient Conditions Reviews General Payments Back to Top

Home > CA Providers > Bariatric Surgeons

Dr. Keith Ryan Scharf, DO

(15 Ratings)

Specializes in: Bariatric Surgery and General Surgery

Lake Erie College of Osteopathic Medicine

Professional interests include: ventral hernia, robotic surgery, endoscopy, and more.

11175 Campus Street Coleman Pavilion Room 21111
Loma Linda, CA 92350

(909) 558-4286

Dr. Keith Ryan Scharf, DO is a bariatric surgeon in Loma Linda, CA specializing in bariatric surgery and general surgery. He graduated from Lake Erie College of Osteopathic Medicine. Dr. Keith Ryan Scharf, DO is affiliated with Loma Linda University Health, U.S. Department of Veterans Affairs, Loma Linda University Medical Center East Campus, Loma Linda University Professional Office Building - Murrieta, Loma Linda University Faculty Medical Clinics, Loma Linda University Medical Center, Loma Linda University Children's Hospital and Loma Linda University Surgical Hospital.

Office Locations

11175 Campus Street Coleman Pavilion Room 21111
Loma Linda, CA 92350

(909) 558-4286

(909) 558-0236

open_in_new

11234 Anderson Street
Loma Linda, CA 92354

open_in_new

11370 Anderson Street Suite 2100
Loma Linda, CA 92354

open_in_new

25333 Barton Road
Loma Linda, CA 92354

open_in_new

26780 Barton Road
Redlands, CA 92373

open_in_new

28078 Baxter Road Suite 510
Murrieta, CA 92563

open_in_new

3350 La Jolla Village Drive San Diego Vahcs (664)
San Diego, CA 92161

open_in_new

Some issues Dr. Keith Ryan Scharf, DO can help you with:

Colectomy (Colon Resection)

Colectomy is surgery to remove all or part of the colon, or the longest part of the large intestine. The colon may be affected by diseases such as cancer or inflammatory bowel disease. In a colectomy, all or part of the colon that is infected, blocked, or cancerous is removed.

A colectomy may be performed by laparoscopic or open surgery. A laparoscopic colectomy requires several small cuts on the abdomen, and uses a thin tube with a camera, called a laparoscope. Laparoscopic colectomies are less invasive than open procedures. For some individuals, a laparoscopic colectomy may not be possible, and instead an open colectomy is performed. In an open colectomy, a large incision is made on the abdomen. Open colectomies typically require longer recovery periods.

After the incisions are made, a portion of the colon is removed, and the remaining ends of the colon are attached to each other in a procedure called anastomosis. Waste can continue to travel through the body as normal. However, in some situations, it may be necessary for the end of the colon to be attached to an opening in the abdomen, called a stoma. This procedure is called an ostomy. Types of ostomies include:

Colostomy, in which the remaining portion of the colon is attached to the abdominal opening.
Ileostomy, in which the small intestine is attached to the abdominal opening.

An ostomy bag will be attached to the skin to collect waste. If the entire colon is removed, either an ileostomy is performed, or the small intestine is connected to the anus and waste may pass through as normal.

Stomas may be permanent or temporary. If the stoma is temporary, the ends of the colon will be rejoined in a later procedure. Temporary stomas are generally used to allow time for the colon to heal following surgery.

A colectomy may take between one and four hours. Following the procedure, patients will need to consume a liquid and low fiber diet before gradually returning to their normal diet. Patients will need to stay in the hospital for three to seven days for monitoring. Full recovery and return to normal activity may take anywhere from a few weeks to several months.

Gallbladder Removal Surgery (Cholecystectomy)

The gallbladder is a small, pear-shaped organ on the right side of the upper abdomen, underneath the liver. Its purpose is to store bile, which is used to digest fat. Occasionally, the gallbladder can develop mineral stones, called gallstones. If they are large enough, gallstones can block the ducts in the gallbladder and cause swelling and infection. Gallstones can be treated with lifestyle changes and medication, but sometimes this is not enough. In these cases, it is best to remove the gallbladder before it can cause more serious problems. The surgical removal of the gallbladder is called a cholecystectomy.

Today, most gallbladder surgeries are done laparoscopically. Four tiny incisions are made in the abdomen, and small tools are inserted through these tiny incisions to perform the surgery. Because the incisions are much smaller, recovery time is much faster with this type of surgery. Patients are usually discharged from the hospital the same day. Sometimes, open surgery is used to remove a gallbladder. In this type of surgery, a cut about six inches long is made in the upper right abdomen. After the gallbladder is removed, it is sutured or stapled closed. With open surgery, patients usually stay in the hospital for two to three days to recover before they are discharged.

Gallbladder removal, like any surgery, carries some risks, such as bleeding, infection, or the development of blood clots. Doctors will tell patients how to minimize their risk for complications. After surgery, patients are advised to avoid strenuous activity for several days. They should not soak in a bath until their sutures or staples have been removed. Patients should wash hands before touching the area around the incision. It will take a couple of days until patients feel like themselves again and a few weeks until their scar has healed and faded.

Weight Loss Surgery (Bariatric Surgery)

Bariatric or weight-loss surgery is a surgical procedure performed to help significantly obese patients lose weight when more traditional methods, such as dieting and exercise, have not helped. Depending on the type, these surgeries change the gastrointestinal tract to limit how much food can be eaten and also change how food is absorbed by the body. Of the various bariatric surgeries available, the most common is gastric bypass.

By far the most common of the gastric bypass surgeries is called Roux-en-Y. During this surgery, part of the stomach and small intestine are detached from the gastrointestinal tract, in order to make the tract smaller. The surgeon divides the stomach into two parts. The working stomach, at the end of the esophagus, is now tiny - only the size of a walnut. This makes patients feel full after eating a small amount of food. Then the small intestine is also divided, and after bypassing a section of the small intestine to reduce food absorption, the intestine is attached to the small stomach pouch. The patient now has a working stomach and intestine like before, only much smaller.

Because gastric bypass is used to treat extreme obesity, it can reduce the risk of some of the problems associated with obesity. Gastric bypass can help treat or reduce the risk for such conditions as heart disease, high blood pressure, sleep apnea, and type 2 diabetes. However, it is a major surgery and also carries risks itself. Any surgery can lead to infection, bleeding, or blood clots, and weight loss surgery in particular carries risks of leaks in the gastrointestinal system, malnutrition, bowel obstructions, and vomiting.

Typically patients are considered candidates for gastric bypass surgery if they have a BMI greater than 40, or sometimes if they have a BMI between 35 and 40 but are suffering from obesity-related illnesses such as diabetes. The outlook is generally good, with most patients losing between 50-75% of their excess weight in 1-2 years. However, patients must follow strict diet guidelines so that the stomach can heal, starting with no food at all, then followed by a liquid diet for some time. For many severely obese patients who have tried strict diets before without success, gastric bypass surgery is the tool that allows them to finally achieve their weight loss and health goals.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Keith Ryan Scharf, DO treated as a bariatric surgeon in Loma Linda, CA during 2012 were hospital care and inpatient care.

Volume of procedures performed by Dr. Keith Ryan Scharf, DO for Medicare patients.

doctor visit	14
hospital care	13
inpatient care	13

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Keith Ryan Scharf, DO treated as a bariatric surgeon in Loma Linda, CA during 2013 were hospital care and inpatient care.

Volume of procedures performed by Dr. Keith Ryan Scharf, DO for Medicare patients.

doctor visit	75
hospital care	11
inpatient care	11

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Keith Ryan Scharf, DO.

**Gender**
Male	43
Female	62

**Ethnicity**
Non-Hispanic White	69
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	41
From 75 to 84	0
85 and over	0
Less than 65	38

Conditions of Medicare patients treated by Dr. Keith Ryan Scharf, DO in 2013

Hypertension	68
High Cholesterol	50
Stroke	0
Ischemic Heart Disease	37
Depression	31
Chronic Kidney Disease	26
Asthma	26
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	24
Chronic Obstructive Pulmonary Disease	23
Diabetes	43
Dementia	10
Cancer	0

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Keith Ryan Scharf, DO treated as a bariatric surgeon in Loma Linda, CA during 2014 were removal of lesion (e.g. growth), minimally invasive procedures, diagnostic procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Keith Ryan Scharf, DO for Medicare patients.

diagnostic procedures	12
doctor visit	139
gastrointestinal procedures	12
minimally invasive procedures	12
removal of lesion (e.g. growth)	12

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Keith Ryan Scharf, DO.

**Gender**
Male	54
Female	86

**Ethnicity**
Non-Hispanic White	82
Black	0
Hispanic	35
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	55
From 75 to 84	0
85 and over	0
Less than 65	56

Conditions of Medicare patients treated by Dr. Keith Ryan Scharf, DO in 2014

Hypertension	73
High Cholesterol	53
Stroke	0
Ischemic Heart Disease	32
Depression	33
Chronic Kidney Disease	26
Asthma	18
Osteoperosis	9
Atrial Fibrilation	13
Heart Failure	31
Chronic Obstructive Pulmonary Disease	17
Diabetes	44
Dementia	11
Cancer	0

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

Volume of procedures performed by Dr. Keith Ryan Scharf, DO for Medicare patients.

doctor visit	151

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Keith Ryan Scharf, DO.

**Gender**
Male	126
Female	162

**Ethnicity**
Non-Hispanic White	170
Black	0
Hispanic	62
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	128
From 75 to 84	0
85 and over	0
Less than 65	100

Conditions of Medicare patients treated by Dr. Keith Ryan Scharf, DO in 2015

Hypertension	75
High Cholesterol	53
Stroke	0
Ischemic Heart Disease	31
Depression	31
Chronic Kidney Disease	30
Asthma	19
Osteoperosis	0
Atrial Fibrilation	12
Heart Failure	22
Chronic Obstructive Pulmonary Disease	16
Diabetes	38
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Keith Ryan Scharf, DO treated as a bariatric surgeon in Loma Linda, CA during 2016 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Keith Ryan Scharf, DO for Medicare patients.

diagnostic procedures	22
doctor visit	132
gastrointestinal procedures	33
minimally invasive procedures	33
removal of lesion (e.g. growth)	22
weight management	11

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Keith Ryan Scharf, DO.

**Gender**
Male	51
Female	80

**Ethnicity**
Non-Hispanic White	70
Black	0
Hispanic	35
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	63
From 75 to 84	0
85 and over	0
Less than 65	49

Conditions of Medicare patients treated by Dr. Keith Ryan Scharf, DO in 2016

Hypertension	75
High Cholesterol	48
Stroke	0
Ischemic Heart Disease	30
Depression	30
Chronic Kidney Disease	37
Asthma	26
Osteoperosis	10
Atrial Fibrilation	10
Heart Failure	28
Chronic Obstructive Pulmonary Disease	16
Diabetes	42
Dementia	0
Cancer	9

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Keith Ryan Scharf, DO treated as a bariatric surgeon in Loma Linda, CA during 2017 were removal of lesion (e.g. growth), minimally invasive procedures, diagnostic procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Keith Ryan Scharf, DO for Medicare patients.

diagnostic procedures	14
doctor visit	127
gastrointestinal procedures	14
minimally invasive procedures	14
removal of lesion (e.g. growth)	14

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Keith Ryan Scharf, DO.

**Gender**
Male	38
Female	69

**Ethnicity**
Non-Hispanic White	71
Black	0
Hispanic	21
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	52
From 75 to 84	0
85 and over	0
Less than 65	42

Conditions of Medicare patients treated by Dr. Keith Ryan Scharf, DO in 2017

Hypertension	72
High Cholesterol	43
Stroke	0
Ischemic Heart Disease	30
Depression	34
Chronic Kidney Disease	42
Asthma	18
Osteoperosis	0
Atrial Fibrilation	10
Heart Failure	37
Chronic Obstructive Pulmonary Disease	13
Diabetes	42
Dementia	0
Cancer	13

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Keith Ryan Scharf, DO treated as a bariatric surgeon in Loma Linda, CA during 2018 were removal of lesion (e.g. growth), minimally invasive procedures, diagnostic procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Keith Ryan Scharf, DO for Medicare patients.

diagnostic procedures	21
doctor visit	139
gastrointestinal procedures	21
minimally invasive procedures	21
removal of lesion (e.g. growth)	21

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Keith Ryan Scharf, DO.

**Gender**
Male	41
Female	76

**Ethnicity**
Non-Hispanic White	68
Black	22
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	46
From 75 to 84	0
85 and over	0
Less than 65	55

Conditions of Medicare patients treated by Dr. Keith Ryan Scharf, DO in 2018

Hypertension	75
High Cholesterol	51
Stroke	0
Ischemic Heart Disease	35
Depression	42
Chronic Kidney Disease	39
Asthma	21
Osteoperosis	13
Atrial Fibrilation	9
Heart Failure	36
Chronic Obstructive Pulmonary Disease	18
Diabetes	43
Dementia	0
Cancer	16

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

Volume of procedures performed by Dr. Keith Ryan Scharf, DO for Medicare patients.

doctor visit	104

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Keith Ryan Scharf, DO.

**Gender**
Male	42
Female	68

**Ethnicity**
Non-Hispanic White	70
Black	0
Hispanic	24
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	54
From 75 to 84	0
85 and over	0
Less than 65	42

Conditions of Medicare patients treated by Dr. Keith Ryan Scharf, DO in 2019

Hypertension	74
High Cholesterol	52
Stroke	0
Ischemic Heart Disease	34
Depression	32
Chronic Kidney Disease	32
Asthma	18
Osteoperosis	10
Atrial Fibrilation	0
Heart Failure	28
Chronic Obstructive Pulmonary Disease	14
Diabetes	43
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

Volume of procedures performed by Dr. Keith Ryan Scharf, DO for Medicare patients.

doctor visit	60

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Keith Ryan Scharf, DO.

**Gender**
Male	30
Female	49

**Ethnicity**
Non-Hispanic White	40
Black	0
Hispanic	21
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	36
From 75 to 84	0
85 and over	0
Less than 65	27

Conditions of Medicare patients treated by Dr. Keith Ryan Scharf, DO in 2020

Hypertension	73
High Cholesterol	52
Stroke	0
Ischemic Heart Disease	25
Depression	33
Chronic Kidney Disease	33
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	22
Chronic Obstructive Pulmonary Disease	0
Diabetes	37
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

Volume of procedures performed by Dr. Keith Ryan Scharf, DO for Medicare patients.

doctor visit	44

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Keith Ryan Scharf, DO.

**Gender**
Male	26
Female	38

**Ethnicity**
Non-Hispanic White	33
Black	0
Hispanic	19
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	24
From 75 to 84	0
85 and over	0
Less than 65	28

Conditions of Medicare patients treated by Dr. Keith Ryan Scharf, DO in 2021

Hypertension	70
High Cholesterol	55
Stroke	0
Ischemic Heart Disease	25
Depression	36
Chronic Kidney Disease	30
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	25
Chronic Obstructive Pulmonary Disease	0
Diabetes	39
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

Volume of procedures performed by Dr. Keith Ryan Scharf, DO for Medicare patients.

doctor visit	28

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Keith Ryan Scharf, DO.

**Gender**
Male	17
Female	33

**Ethnicity**
Non-Hispanic White	23
Black	0
Hispanic	15
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	21
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Keith Ryan Scharf, DO in 2022

Hypertension	75
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	24
Depression	36
Chronic Kidney Disease	30
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	26
Chronic Obstructive Pulmonary Disease	0
Diabetes	50
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

Volume of procedures performed by Dr. Keith Ryan Scharf, DO for Medicare patients.

doctor visit	59

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Keith Ryan Scharf, DO.

**Gender**
Male	34
Female	31

**Ethnicity**
Non-Hispanic White	33
Black	0
Hispanic	17
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	33
From 75 to 84	0
85 and over	0
Less than 65	18

Conditions of Medicare patients treated by Dr. Keith Ryan Scharf, DO in 2023

Hypertension	75
High Cholesterol	72
Stroke	0
Ischemic Heart Disease	32
Depression	29
Chronic Kidney Disease	34
Asthma	23
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	25
Chronic Obstructive Pulmonary Disease	18
Diabetes	49
Dementia	0
Cancer	17

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Volume of procedures performed by Dr. Keith Ryan Scharf, DO for Medicare patients.

The highest averages for the top procedures that Dr. Keith Ryan Scharf, DO treated as a bariatric surgeon in Loma Linda, CA were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

diagnostic procedures	17
doctor visit	89
gastrointestinal procedures	20
hospital care	12
inpatient care	12
minimally invasive procedures	20
removal of lesion (e.g. growth)	17
weight management	11

Average Medicare Patient Data From 2012 - 2023

Information about Medicare patients treated by Dr. Keith Ryan Scharf, DO.

**Gender**
Male	41
Female	62

**Ethnicity**
Black / African American	1
Asian / Pacific Islander	0
Non-Hispanic White	60
Hispanic	20
Native American / Alaskan Native	0
Other	0

**Age**
75 to 84	0
85 and over	0
Less than 65	37
65 to 74	46

Average of Total of Conditions of Medicare patients treated by Dr. Keith Ryan Scharf, DO From 2012 - 2023

The highest averages of the most common conditions of Medicare patients that Dr. Keith Ryan Scharf, DO treated were hypertension, high cholesterol, diabetes and depression.

Hypertension	67
High Cholesterol	50
Stroke	0
Ischemic Heart Disease	27
Depression	30
Chronic Kidney Disease	29
Asthma	14
Osteoporosis	3
Heart Failure	25
Chronic Obstructive Pulmonary Disease	11
Diabetes	39
Atrial Fibrillation	4
Cancer	4
Dementia	1

Education & Training

Dr. Keith Ryan Scharf, DO graduated from Lake Erie College of Osteopathic Medicine. He completed residency at Loma Linda University Medical Center. He is certified by the American Board of Surgery, General Surgery and has a state license in California.

Medical School: Lake Erie College of Osteopathic Medicine

Residency: Loma Linda University Medical Center

Board Certification: American Board of Surgery, General Surgery

Licensed In: California

Affiliations & Hospitals

Dr. Keith Ryan Scharf, DO is associated with these hospitals and organizations:

Loma Linda University Health

U.S. Department of Veterans Affairs

Loma Linda University Medical Center East Campus

Loma Linda University Professional Office Building - Murrieta

Loma Linda University Faculty Medical Clinics

Loma Linda University Medical Center

Loma Linda University Children's Hospital

Loma Linda University Surgical Hospital

Ratings & Reviews

Dr. Keith Ryan Scharf, DO has an exceptional overall rating with an average of 4.87 out of 5 stars based on 15 ratings. We collect ratings and reviews of Dr. Keith Ryan Scharf, DO from all over the web to help you find the right in Loma Linda, CA.

4.87

Overall Rating

(15 Ratings)

Leave a Review

General Payments

These charts describe general payments received by Dr. Keith Ryan Scharf, DO. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Intuitive Surgical, Inc.	$16,977 Da Vinci Surgical System $16,977
Covidien LP	$11,167 Sonicision $3,150	LigaSure $190	iDrive $98	Signia $47	$7,683
W. L. Gore & Associates, Inc.	$3,185 BIO-A Tissue Reinforcement $1,271	SEAMGUARD Bioabsorbable Staple Line Reinforcement $679	SEAMGUARD Bioabsorbable Staple $567	SYNECOR Biomaterial $551	GORE SEAMGUARD Bioabsorbable Staple Line Reinforce $52	Other $64
Ethicon Inc.	$1,786 LINX Reflux Management System $1,683	Mesh $49	Sutures $39	Endoscopy Endocutters $8	$6
Ethicon US, LLC	$1,568 STRATAFIX $241	Echelon Flex $150	Biosurgicals $134	Endoscopy Other $112	Energy Harmonic $107	Other $824
Other	$1,017 Orbera $258	Sonicision $217	Endo Stapling $171	Signia $161	Saxenda $98	Other $111

**Types of Payments**
Education	$16,000
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$9,450
Food and Beverage	$7,263
Travel and Lodging	$2,971
Consulting Fee	$15

Biography

Dr. Keith Scharf is a general surgery and bariatric surgery specialist in Loma Linda, CA, Murrieta, CA, and Redlands, CA. After attending Lake Erie College of Osteopathic Medicine for medical school, he completed his residency training at Loma Linda University Medical Center. These areas are among his clinical interests: surgical repair, achalasia, and gallbladder problems. Patient ratings for Dr. Scharf average 5.0 stars (out of 5). His professional affiliations include Loma Linda University Health and U.S. Department of Veterans Affairs.