Pediatric Gastroenterology in Los Angeles, California
Data updated monthly · Last refresh September 2026
46 Pediatric Gastroenterology providers practice in Los Angeles, and 52% received drug or device company payments in 2025. Listings are drawn from federal public records and are not endorsements.
Pediatric Gastroenterology providers in Los Angeles
Listed alphabetically. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.
Dr. Alvin ChanLos Angeles, CA · No drug or device payments recorded (2025) ·
(310) 825-0867 Dr. Ardath Yamaga, MDLos Angeles, CA · No drug or device payments recorded (2025) ·
(323) 669-2181 Dr. Beth Carter, MDLos Angeles, CA · $39 in drug and device payments (2025) ·
(888) 631-2452 Dr. Blake RosenthalLos Angeles, CA · $297 in drug and device payments (2025) ·
(323) 361-7798 Dr. Chuan Hao Lin, MDLos Angeles, CA · $15 in drug and device payments (2025) ·
(323) 669-2181 Dr. David Ziring, M.D.Los Angeles, CA · $48,865 in drug and device payments (2025) ·
(310) 206-6134 Dr. Elaheh Vahabnezhad, M.D.Los Angeles, CA · No drug or device payments recorded (2025) ·
(310) 825-0867 Dr. Emily Whang, M.D.Los Angeles, CA · No drug or device payments recorded (2025) ·
(310) 206-6134 Dr. Frank Sinatra, MDLos Angeles, CA · $34 in drug and device payments (2025) ·
(323) 669-2181 Dr. Frederick Watanabe, MDLos Angeles, CA · No drug or device payments recorded (2025) ·
(323) 783-4011 Dr. Hillel Naon, MDLos Angeles, CA · $70 in drug and device payments (2025) ·
(323) 361-2181 Dr. Janice Bitong, M.D.Los Angeles, CA · No drug or device payments recorded (2025) ·
(310) 825-0867 Dr. Jaya Punati, MDLos Angeles, CA · No drug or device payments recorded (2025) ·
(323) 361-5924 Dr. Jessica Deas, MDLos Angeles, CA · No drug or device payments recorded (2025) ·
(323) 660-2450 Dr. Johanna Ascher Bartlett, M.D.Los Angeles, CA · $19 in drug and device payments (2025) ·
(323) 361-2181 Dr. Jorge Vargas, M.D.Los Angeles, CA · No drug or device payments recorded (2025) ·
(310) 206-6136 Dr. Kattayoun Kordy, MDLos Angeles, CA · No drug or device payments recorded (2025) ·
(323) 660-2450 Dr. Keith Hazleton, MD, PHDLos Angeles, CA · $33 in drug and device payments (2025) ·
(323) 660-2450 Dr. Kimberly Silva, M.D.Los Angeles, CA · $120 in drug and device payments (2025) ·
(310) 825-0867 Dr. Laura Wozniak, M.D.Los Angeles, CA · No drug or device payments recorded (2025) ·
(310) 423-6082 Dr. Mallory ChavannesLos Angeles, CA · $22,774 in drug and device payments (2025) ·
(438) 395-1651 Dr. Marjorie-anne Manchandia, M.D.Los Angeles, CA · $34 in drug and device payments (2025) ·
(310) 825-0867 Dr. Martin Gilbert, MDLos Angeles, CA · No drug or device payments recorded (2025) ·
(323) 783-4011 Dr. Martin Martin, M.D.Los Angeles, CA · No drug or device payments recorded (2025) ·
(310) 206-3952 Dr. Marvin Ament, M.D.Los Angeles, CA · $38 in drug and device payments (2025) ·
(310) 206-3952 Dr. Michelle Binod, MD, MPHLos Angeles, CA · No drug or device payments recorded (2025) ·
(323) 660-2450 Dr. Michelle Pietzak, M.D.Los Angeles, CA · No drug or device payments recorded (2025) ·
(323) 361-2181 Dr. Omar Alharbi, M.D.Los Angeles, CA · $1,350 in drug and device payments (2025) ·
(323) 361-2181 Dr. Parastou Khalessi Hosseini, DOLos Angeles, CA · No drug or device payments recorded (2025) ·
(323) 660-2450 Dr. Prashanthi Kandavel, M.D.Los Angeles, CA · $54 in drug and device payments (2025) ·
(323) 361-2181 Dr. Quin Liu, M.D.Los Angeles, CA · $354 in drug and device payments (2025) · Telehealth ·
(323) 361-5924 Dr. Rebecca Winderman, MDLos Angeles, CA · No drug or device payments recorded (2025) ·
(917) 671-8142 Dr. Robert Venick, M.D.Los Angeles, CA · $4,840 in drug and device payments (2025) ·
(310) 206-6134 Dr. Rohit Kohli, MBBS, MSLos Angeles, CA · $9,596 in drug and device payments (2025) ·
(323) 361-4100 Dr. Roy Nattiv, MDLos Angeles, CA · $508 in drug and device payments (2025) ·
(310) 844-1194 Dr. Rula Harb, MDLos Angeles, CA · $145 in drug and device payments (2025) ·
(323) 669-2181 Dr. Russell Merritt, MDLos Angeles, CA · No drug or device payments recorded (2025) ·
(323) 361-5704 Dr. Saumya Pathak, M.D.Los Angeles, CA · No drug or device payments recorded (2025) ·
(310) 206-6134 Dr. Shervin Rabizadeh, M.D.Los Angeles, CA · No drug or device payments recorded (2025) ·
(310) 423-7100 Dr. Shreena Patel, MDLos Angeles, CA · $49 in drug and device payments (2025) ·
(888) 631-2452 Dr. Shruti Nabar, MDLos Angeles, CA · $298 in drug and device payments (2025) ·
(323) 660-2450 Dr. Sonia Michail, MDLos Angeles, CA · $54 in drug and device payments (2025) ·
(323) 361-5924 Dr. Steven Kim, DOLos Angeles, CA · $394 in drug and device payments (2025) ·
(323) 783-4976 Dr. Suzanne Mcdiarmid, M.D.Los Angeles, CA · No drug or device payments recorded (2025) ·
(310) 825-0867 Dr. Vrinda Bhardwaj, M.D.Los Angeles, CA · $48 in drug and device payments (2025) ·
(323) 361-6642 Dr. Yuhua ZhengLos Angeles, CA · No drug or device payments recorded (2025) ·
(323) 361-4456 Common questions
How many Pediatric Gastroenterology providers are in Los Angeles, California?There are 46 Pediatric Gastroenterology providers with active NPI records practicing in Los Angeles, according to federal NPPES data refreshed monthly.
How many Pediatric Gastroenterology providers in Los Angeles received drug or device company payments?24 of 46 (52%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.
Where does this data come from?Provider records come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.
All specialties in Los Angeles Pediatric Gastroenterology across California