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Infectious Disease in Los Angeles, California

Data updated monthly · Last refresh September 2026

145 Infectious Disease providers practice in Los Angeles, and 36% received drug or device company payments in 2025. Listings are drawn from federal public records and are not endorsements.

Infectious Disease 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. Patricia Samuels, MD
Los Angeles, CA · $53 in drug and device payments (2025) · (213) 999-7714
Dr. Paul Adamson, MD, MPH
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 206-7663
Dr. Paula Gaut, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 967-1884
Dr. Paul Allyn
Los Angeles, CA · No drug or device payments recorded (2025) · Telehealth · (310) 206-7663
Dr. Paul Holtom, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 442-5100
Dr. Paul Janoian
Los Angeles, CA · No drug or device payments recorded (2025) · Telehealth · (310) 825-7375
Dr. Peter Geiseler, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 442-5100
Dr. Peter Ruane, MD
Los Angeles, CA · $2,646 in drug and device payments (2025) · Telehealth · (323) 954-1072
Dr. Peter Sim, M.D.
Los Angeles, CA · $250 in drug and device payments (2025) · (323) 442-5100
Dr. Peter Wolfe, M.D.
Los Angeles, CA · $2,642 in drug and device payments (2025) · (323) 954-1072
Dr. Phillip Zakowski, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · Telehealth · (310) 358-2300
Dr. Phyllis Guze, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 268-3125
Dr. Pryce Gaynor, M.D.
Los Angeles, CA · $169 in drug and device payments (2025) · Telehealth · (310) 481-4242
Dr. Quen Cheng
Los Angeles, CA · No drug or device payments recorded (2025) · Telehealth · (310) 206-7663
Dr. Rachel Baden, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 409-7414
Dr. Rachel Civen
Los Angeles, CA · No drug or device payments recorded (2025) · (213) 250-8653
Dr. Rachel Zabner Spielberger, M.D.
Los Angeles, CA · $33 in drug and device payments (2025) · Telehealth · (310) 358-2300
Dr. Randy Feldman, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · Telehealth · (310) 855-1960
Dr. Raphael Landovitz, MD
Los Angeles, CA · $26,158 in drug and device payments (2025) · (310) 557-2273
Dr. Rebecca Linfield, MD
Los Angeles, CA · No drug or device payments recorded (2025) · Telehealth · (310) 206-7663
Dr. Reid Goodman
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 409-7556
Dr. Richard Sokolov, MD
Los Angeles, CA · $251 in drug and device payments (2025) · Telehealth · (310) 358-5530
Dr. Risa Hoffman, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 206-7663
Dr. Robert Larsen
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 226-2170
Dr. Saahir Khan, M.D., PH.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 442-5100
Dr. Salam Alkasspooles, MD
Los Angeles, CA · $203 in drug and device payments (2025) · (310) 207-0020
Dr. Scott Lawler, PA
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 993-7400
Dr. Seema Mehta Steinke, M.D.. M.SC.
Los Angeles, CA · $57 in drug and device payments (2025) · Telehealth · (310) 206-7663
Dr. Seth Judson, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 206-7663
Dr. Shaker Itani, M.D.
Los Angeles, CA · $85 in drug and device payments (2025) · (323) 442-5100
Dr. Shakuntala Swaminathan, MD
Los Angeles, CA · $44 in drug and device payments (2025) · (323) 954-1788
Dr. Sheree Poitier, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (213) 288-7837
Dr. Stephen Marer, MD
Los Angeles, CA · No drug or device payments recorded (2025) · Telehealth · (323) 442-5100
Dr. Stephen Puentes, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 846-4219
Dr. Steven Hwang, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (213) 675-7781
Dr. Sun Park, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · Telehealth · (323) 442-5100
Dr. Tara Vijayan, MD.
Los Angeles, CA · No drug or device payments recorded (2025) · Telehealth · (310) 825-7225
Dr. Thaidra Gaufin, MD
Los Angeles, CA · No drug or device payments recorded (2025) · Telehealth · (323) 442-5100
Dr. Timothy Brewer, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 206-7663
Dr. Tomiko Stein, MD, MPH
Los Angeles, CA · $110 in drug and device payments (2025) · Telehealth · (323) 783-4798
Dr. Townson Tsai, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (323) 783-4011
Dr. William George, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 268-4290
Dr. William Schwartzman, M.D.
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 268-3015
Dr. Winnie Huang, MD
Los Angeles, CA · $477 in drug and device payments (2025) · (323) 857-2000
Dr. Zachary Rubin, MD
Los Angeles, CA · No drug or device payments recorded (2025) · (310) 206-7663

Conditions Infectious Disease providers in Los Angeles, California commonly treat

Patients often search by condition rather than specialty. These are conditions typically managed by Infectious Disease providers. Individual practices vary, so confirm with the provider before booking.

Common questions

How many Infectious Disease providers are in Los Angeles, California?

There are 145 Infectious Disease providers with active NPI records practicing in Los Angeles, according to federal NPPES data refreshed monthly.

How many Infectious Disease providers in Los Angeles received drug or device company payments?

52 of 145 (36%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.

What conditions do Infectious Disease providers in Los Angeles treat?

Infectious Disease providers in Los Angeles commonly treat long COVID, HIV care, Lyme disease, recurrent infections, travel medicine and related conditions. Individual practices vary, so confirm with the provider before booking.

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 Infectious Disease 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.