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Anesthesiology in Riverside, California

Data updated monthly · Last refresh September 2026

55 Anesthesiology providers practice in Riverside, and 27% received drug or device company payments in 2025. Listings are drawn from federal public records and are not endorsements.

Anesthesiology providers in Riverside

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. Alamelu Nagappan, MD
Riverside, CA · No drug or device payments recorded (2025) · (951) 782-3801
Dr. Alex Nhan
Riverside, CA · No drug or device payments recorded (2025) · (951) 788-3000
Dr. Angel Jose Vaca, M.D.
Riverside, CA · No drug or device payments recorded (2025) · (951) 686-3575
Dr. Anthony Gonzales, M.D.
Riverside, CA · No drug or device payments recorded (2025) · (951) 688-7270
Dr. Anthony Ma, MD
Riverside, CA · No drug or device payments recorded (2025) · (909) 353-2000
Dr. Ashish Sinha, MD
Riverside, CA · $360 in drug and device payments (2025) · (951) 788-3000
Dr. Ayman Ads, M.D.
Riverside, CA · $34 in drug and device payments (2025) · (951) 688-7270
Dr. Babar Iqbal, MD
Riverside, CA · No drug or device payments recorded (2025) · (951) 729-9822
Dr. Barbara Brar, MD
Riverside, CA · $238 in drug and device payments (2025) · (951) 686-3575
Dr. Bennett Martin, MD
Riverside, CA · $14 in drug and device payments (2025) · (951) 686-3575
Dr. Bruce Holmblad, MD
Riverside, CA · No drug or device payments recorded (2025) · (951) 686-3575
Dr. Christopher Stalker, M.D.
Riverside, CA · No drug or device payments recorded (2025) · (951) 534-5303
Dr. David Baloga, MD
Riverside, CA · $1,588 in drug and device payments (2025) · (951) 686-3575
Dr. David Hirst, MD
Riverside, CA · No drug or device payments recorded (2025) · (951) 686-3575
Dr. Denny Le, M.D.
Riverside, CA · $22 in drug and device payments (2025) · (951) 788-3000
Dr. Edwin Liu, DO
Riverside, CA · $105 in drug and device payments (2025) · (951) 788-3000
Dr. Gerardo Labasan, MD
Riverside, CA · No drug or device payments recorded (2025) · (951) 686-3575
Dr. Gregory Choe, MD
Riverside, CA · No drug or device payments recorded (2025) · (909) 353-2000
Dr. Harvinder Ramsingh, MD
Riverside, CA · No drug or device payments recorded (2025) · (951) 686-3575
Dr. James Cabral
Riverside, CA · No drug or device payments recorded (2025) · (951) 788-3000
Dr. James Mcdonald, MD
Riverside, CA · No drug or device payments recorded (2025) · (951) 686-3575
Dr. Jason Cunnan, MD
Riverside, CA · No drug or device payments recorded (2025) · (951) 686-3575
Dr. Jeffrey Barczak, D.O.
Riverside, CA · $592 in drug and device payments (2025) · (949) 572-8398
Dr. Jonathan Shen, DO
Riverside, CA · No drug or device payments recorded (2025) · (951) 353-3690
Dr. Joseph Imarah, MD
Riverside, CA · No drug or device payments recorded (2025) · (909) 353-2000
Dr. Kaye Dabbs-moyer, M.D.
Riverside, CA · No drug or device payments recorded (2025) · (951) 688-7270
Dr. Keith Smith, DO
Riverside, CA · No drug or device payments recorded (2025) · (909) 353-2000
Dr. Lawrence Robinson, MD
Riverside, CA · No drug or device payments recorded (2025) · (951) 686-3575
Dr. Long Xu, MD
Riverside, CA · No drug or device payments recorded (2025) · (951) 686-3575
Dr. Marwa Sidani
Riverside, CA · No drug or device payments recorded (2025) · (951) 788-3000
Dr. Matthew Dupper
Riverside, CA · No drug or device payments recorded (2025) · (951) 686-3575
Dr. Michael Buchan, MD
Riverside, CA · No drug or device payments recorded (2025) · (951) 686-3575
Dr. Michael Lavallee, MD
Riverside, CA · No drug or device payments recorded (2025) · (909) 353-2000
Dr. Mukesh Gupta, M.D.
Riverside, CA · $128 in drug and device payments (2025) · (951) 781-3945
Dr. Nadim Haddad, MD
Riverside, CA · No drug or device payments recorded (2025) · (951) 683-6370
Dr. Neel Pandya, M.D.
Riverside, CA · No drug or device payments recorded (2025) · (951) 688-2211
Dr. Ngoc Pham, MD
Riverside, CA · No drug or device payments recorded (2025) · (951) 686-3575
Dr. Norma Dominguez, D.O.
Riverside, CA · No drug or device payments recorded (2025) · (951) 782-5110
Dr. Parul Patel, M.D.
Riverside, CA · No drug or device payments recorded (2025) · Telehealth · (951) 686-3579
Dr. Peter Cheng, DO
Riverside, CA · $41 in drug and device payments (2025) · (909) 353-2000
Dr. Quang Tran, D.O.
Riverside, CA · $21 in drug and device payments (2025) · (951) 688-2211
Dr. Rashid Awan, MD
Riverside, CA · No drug or device payments recorded (2025) · Telehealth · (951) 577-0501
Dr. Richard Harris, M.D.
Riverside, CA · No drug or device payments recorded (2025) · (951) 688-7270
Dr. Roger Nicosia, MD
Riverside, CA · No drug or device payments recorded (2025) · (951) 782-3801
Dr. Ronald Lazar, M.D.
Riverside, CA · No drug or device payments recorded (2025) · (951) 782-5110
Dr. Ronghuan Liu, MD
Riverside, CA · $123 in drug and device payments (2025) · (951) 686-3575
Dr. Seongmin Lee, MD
Riverside, CA · No drug or device payments recorded (2025) · (951) 788-3000
Dr. Shankar Sundaram
Riverside, CA · $107 in drug and device payments (2025) · (951) 688-7270
Dr. Sima Firouzbakhsh, MD
Riverside, CA · No drug or device payments recorded (2025) · (909) 353-2000
Dr. Tammy Lee, D.O.
Riverside, CA · No drug or device payments recorded (2025) · (941) 202-1940

Common questions

How many Anesthesiology providers are in Riverside, California?

There are 55 Anesthesiology providers with active NPI records practicing in Riverside, according to federal NPPES data refreshed monthly.

How many Anesthesiology providers in Riverside received drug or device company payments?

15 of 55 (27%) 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 Riverside Anesthesiology across California

Try a city like Tucson, a zip like 85016, or a specialty like psychiatry. For a doctor by name, use the full search.
Sources: NPPES (CMS), Doctors and Clinicians national files, CMS Open Payments 2025. Updated monthly. Records are public federal data and are not verified credentials, licensure checks, or endorsements. This directory is informational and not medical advice. How we build this directory.