California Bariatric & General Surgery Associates

(866) 405-4359

Experience counts when it comes to complex bariatric surgery. With more than 1,000 laparoscopic roux-en-y gastric bypasses completed, the surgeons at California Bariatric and General Surgery Associates have performed the most bariatric procedures in the Los Angeles area.

Their specialists have served variously on the teaching staff at USC and Huntington Memorial Hospital, and currently one of their surgeons is the director of the Bariatric Center of Excellence at Arcadia Methodist Hospital.

Click the following links to jump to each surgeon's profile or scroll down the page to review them all:

• Troy LaMar, MD, FACS
• Bengt Pehrsson, MD, FACS
• Asok Doraiswamy, MD

To schedule a consultation or free seminar and learn more about your weight loss surgery options, please complete and submit the email form below or contact the office toll-free at (866) 405-4359.

Troy LaMar, MD, FACS

Dr. Troy LaMar was born and raised in Madison, Wisconsin. He attended the University of Southern California, receiving a bachelor's degree in psychology in 1986. He returned home for medical school, earning his M.D. at the University of Wisconsin-Madison in 1992.

Dr. Troy LaMar completed his general surgery residency at Huntington Memorial Hospital in California, in 1997. He then joined California Bariatric and General Surgery Associates in 1998.

In addition to his private practice, Dr. Troy LaMar is on the teaching staff at Huntington Memorial. His special areas of interest include bariatric surgery, advanced laparoscopic surgery, and hernia surgery.

To schedule a consultation or free seminar with Dr. LaMar and learn more about your weight loss surgery options, please complete and submit the email form below or contact the office toll-free at (866) 405-4359.

Bengt Pehrsson, MD, FACS

Born in Stockholm, Sweden, Dr. Bengt Pehrsson received his medical degree at the University of Munich in West Germany. Upon completion of his general medical training, he was accepted to the residency program at Tulane University in New Orleans, Louisiana. He did his training primarily at what was then known at Charity Hospital in the heart of the city. After his 5 years of general residency he continued with his education receiving an additional year of training in Colon/Rectal surgery as a Fellow at the Alton Ochsner Foundation in New Orleans.

A member of the Boards of both General Surgery and Colon/Rectal Surgery, he began practicing in the San Gabriel Valley in 1982. He maintains active membership in the American College of Surgeons, SAGES, the American Society of Bariatric Surgeons, American Society of Gastroenterology and Society of colon and Rectal Surgeons.

With his extensive training and experiences in general and colon/rectal surgery, he became an early advocate of Bariatric surgery, specifically with Roux-en-Y Gastric Bypass. Performing these procedures since 1991, they were initially all preformed as open surgical cases but now they are done almost exclusively laparoscopic. With his vast training and year of experience in this procedure he is the only surgeon in the San Gabriel Valley performing laparoscopic revisions of Bariatric surgery.

During the past 14 years he has traveled extensively on the West Coast speaking to groups about Bariatric surgery and obesity. An early advocate for weight loss surgeries, he is the Medical Director of the Bariatric Surgery Program at Methodist Hospital in Arcadia, California.

An avid fisherman, he and his wife Denise reside in the San Gabriel Valley. They have two children, both currently attending University.

To schedule consultation or free seminar with Dr. Pehrsson and learn more about your weight loss surgery options, please complete and submit the email form below or contact the office toll-free at (866) 405-4359.

Asok Doraiswamy, MD

Dr. Asok Doraiswamy grew up in Corvallis, Oregon.

He attended Marquette University in Milwaukee Wisconsin where he received his bachelors degree in biology in 1997. He attended medical school at Saint Louis University and went on to complete his general surgery training at the University of California Davis in 2006.

Before joining California Bariatric and General Surgery Associates, Dr. Doraiswamy completed a year long fellowship in advanced laparoscopic and bariatric surgery at Cedars Sinai Medical Center. His specific areas of interest include bariatric surgery, antireflux surgery, and advanced laparoscopy .

To schedule a consultation or free seminar with Dr. Doraiswamy and learn more about your weight loss surgery options, please complete and submit the email form below or contact the office toll-free at (866) 405-4359.

Email Drs. LaMar, Pehrsson & Doraiswamy

Email Drs. LaMar, Pehrsson or Doraiswamy by completing the form below and clicking "Send Email" (your information will only be used to respond to this inquiry).

Dr. LaMar's website: California Bariatric & General Surgery Associates