Loading provider…
Loading provider…
Gastroenterology Physician in Los Angeles, CA
NPI: 1215158829Primary Practice Location
RONALD REAGAN UCLA MEDICAL CENTER
757 Westwood Plz, Los Angeles, CA
Primary Employer
UCLA Medical Plaza
uclahealth.org
HQ Phone
Get MD Stephen's Phone Numberphone_androidMobile
Get MD Stephen's MobileLooking to connect with more Physicians?
Dmand AI gives you access to real-time firmographics, buying signals, org charts, and decision-makers - helping your GTM teams prioritize accounts, personalize outreach with AI-driven automation, and close deals faster.
Get Started for Freearrow_outwardCA State Medical License
2010 - 2026
PA State Medical License
2007 - 2012
CA State Medical License

American Board of Internal Medicine
Gastroenterology
University of Pennsylvania Health System
Chief Residency • Internal Medicine
2010 - 2011
Residency • Internal Medicine
2007 - 2010
UCLA Medical Center
Fellowship • 2014 - 2015
2014 - 2015
UCLA David Geffen School of Medicine/UCLA Medical Center
Fellowship • Gastroenterology
2011 - 2014
Tufts University School Of Medicine
medicine.tufts.edu
Medical School
Until 2007
Harvard University
B.A. • Biochemical Sciences
1999 - 2003
| # | Procedure Code (CPT®/HCPCS II) | Procedure Patients | Procedure Volume |
|---|---|---|---|
| 1 | 91110Imaging of digestive tract done from the inside of the digestive tract | 114 | 119 |
| 2 | 99232Subsequent hospital inpatient care, typically 25 minutes per day | 90 | 135 |
| 3 | 99222Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 54 | 55 |
| 4 | 43259Ultrasound examination of esophagus, stomach and/or upper small bowel using an endoscope | 48 | 50 |
| 5 | 43242Ultrasound guided needle aspiration or biopsy of esophagus, stomach, and/or upper small bowel using an endoscope | 43 | 44 |
Current Practice of Duodenoscope Reprocessing.
Authors: Venkataraman Muthusamy
Journal: Curr Gastroenterol Rep
Authors: Alireza Sedarat, Harman Rahal, Timothy Donahue, Dean Ehrlich, Nimah Ather, Oscar Hines, Rabindra Watson, Venkataraman Muthusamy
Journal: J Gastrointest Surg
Publication Date: 2019-12-10
Digital PCR Improves Mutation Analysis in Pancreas Fine Needle Aspiration Biopsy Specimens.
Authors: Alireza Sedarat, Colin Court, Rabindra Watson, Venkataraman Muthusamy, James Tomlinson, David Braxton
Journal: PLoS One
Publication Date: 2017-01-26