Infectious Disease Specialists in California
Data updated monthly · Last refresh October 2026
1,121 Infectious Disease providers practice in California, including 322 (29%) offering telehealth. The largest concentration is in Los Angeles. Profiles include federal Open Payments records of money received from drug and device companies in 2025. Listings are drawn from federal public records and are not endorsements.
1,121providers
322telehealth
Los Angelestop city
Infectious Disease by city in California
Choose a city to see providers there.
Infectious Disease providers in California
Listed by city, largest first. 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. Philip Robinson, MDNewport Beach, CA · No drug or device payments recorded (2025) ·
(949) 650-9155 Dr. Susan Allen, MDNewport Beach, CA · No drug or device payments recorded (2025) · Telehealth ·
(949) 645-9100 Dr. Thrissawan Sungkapalee, M.D.Newport Beach, CA · $1,056 in drug and device payments (2025) · Telehealth ·
(949) 515-3590 Dr. Vinicius Klee Lopes, M.D.Newport Beach, CA · $1,017 in drug and device payments (2025) · Telehealth ·
(949) 515-3590 Dr. Belen Matias, M.D.Northridge, CA · No drug or device payments recorded (2025) ·
(818) 363-0110 Dr. Edwin Yellin, MDNorthridge, CA · No drug or device payments recorded (2025) ·
(818) 772-2163 Dr. Kenneth Fife, M.D.Novato, CA · No drug or device payments recorded (2025) ·
(317) 457-2214 Dr. Shilpa Marwaha, MDNovato, CA · No drug or device payments recorded (2025) ·
(415) 899-7400 Dr. Alex PelliccioneOakland, CA · No drug or device payments recorded (2025) · Telehealth ·
(510) 752-1000 Dr. Angela Talley, MDOakland, CA · No drug or device payments recorded (2025) ·
(510) 285-9271 Dr. Catherine Pearson, MDOakland, CA · No drug or device payments recorded (2025) ·
(510) 238-5400 Dr. Elizabeth Anderson, MDOakland, CA · No drug or device payments recorded (2025) ·
(510) 752-1000 Dr. Howard Edelstein, MDOakland, CA · $17 in drug and device payments (2025) · Telehealth ·
(510) 437-4323 Dr. Joseph Marzouk, M.D.Oakland, CA · No drug or device payments recorded (2025) ·
(510) 874-1415 Dr. Mark Lee, M.D.Oakland, CA · $204 in drug and device payments (2025) ·
(510) 874-1415 Dr. Neelima Kethineni, M.D.Oakland, CA · No drug or device payments recorded (2025) ·
(510) 204-8290 Dr. Nupur Gupta, D.O.Oakland, CA · No drug or device payments recorded (2025) ·
(510) 869-8400 Dr. Richard Karp, MD, MPHOakland, CA · No drug or device payments recorded (2025) ·
(510) 267-7834 Dr. Sally Slome, MDOakland, CA · No drug or device payments recorded (2025) ·
(510) 752-1000 Dr. Scott Weisenberg, M.D.Oakland, CA · No drug or device payments recorded (2025) · Telehealth ·
(510) 465-6700 Dr. Yenjean Hwang, M.D.Oakland, CA · $286 in drug and device payments (2025) · Telehealth ·
(510) 869-8400 Dr. Anastasia Weiland, MDOrange, CA · No drug or device payments recorded (2025) ·
(800) 465-3203 Dr. Catherine Diamond, MDOrange, CA · No drug or device payments recorded (2025) · Telehealth ·
(714) 456-8978 Dr. Coleen Cunningham, M.D.Orange, CA · No drug or device payments recorded (2025) ·
(714) 880-7812 Dr. Donald N Forthal, MDOrange, CA · No drug or device payments recorded (2025) · Telehealth ·
(714) 456-8978 Dr. Edward Jones-lopez, MDOrange, CA · No drug or device payments recorded (2025) · Telehealth ·
(714) 456-8888 Dr. Emily Blodget, MD, MB, BCH, BAOOrange, CA · $313 in drug and device payments (2025) · Telehealth ·
(714) 880-7812 Dr. Hannah Nam, M.D.Orange, CA · $34 in drug and device payments (2025) · Telehealth ·
(714) 456-8000 Dr. Kamryn Plechot, PHARM.D.Orange, CA · No drug or device payments recorded (2025) ·
(714) 509-2131 Dr. Lauri Thrupp, MDOrange, CA · No drug or device payments recorded (2025) ·
(714) 456-5477 Dr. Peter Heseltine, MD, FACPOrange, CA · No drug or device payments recorded (2025) · Telehealth ·
(714) 773-6702 Dr. Robert Armen, M.D.Orange, CA · No drug or device payments recorded (2025) ·
(714) 289-7171 Dr. Rosa Andrade, MDOrange, CA · No drug or device payments recorded (2025) · Telehealth ·
(714) 456-7720 Dr. Sean Jung, MDOrange, CA · No drug or device payments recorded (2025) · Telehealth ·
(714) 456-7890 Dr. Shruti Gohil, M.D., M.P.H.Orange, CA · No drug or device payments recorded (2025) ·
(714) 456-7016 Dr. Steven Park, MDOrange, CA · No drug or device payments recorded (2025) · Telehealth ·
(714) 456-8068 Dr. Susan Huang, MDOrange, CA · No drug or device payments recorded (2025) ·
(714) 880-7812 Dr. Theodore Pak, MD, PHDOrange, CA · No drug or device payments recorded (2025) ·
(714) 456-8888 Dr. Thomas C Cesario, MDOrange, CA · No drug or device payments recorded (2025) · Telehealth ·
(714) 456-8978 Dr. Tulika Singh, M.D., M.S., AAHIVSOrange, CA · $106,023 in drug and device payments (2025) ·
(714) 456-8888 Dr. David Perlada, M.D.Orinda, CA · No drug or device payments recorded (2025) ·
(925) 254-3805 Dr. Bachir Younes, M.D. , M.P.H.Palm Desert, CA · $650 in drug and device payments (2025) ·
(760) 636-1336 Dr. Dona El-khoury, MDPalm Desert, CA · $83 in drug and device payments (2025) ·
(760) 636-1336 Dr. Ann Stapleton, MDPalm Springs, CA · No drug or device payments recorded (2025) · Telehealth ·
(760) 834-7930 Dr. Christina VuPalm Springs, CA · $447 in drug and device payments (2025) ·
(760) 314-8558 Dr. Cyril Gaultier, MDPalm Springs, CA · $74,039 in drug and device payments (2025) ·
(760) 834-7930 Conditions Infectious Disease providers in 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.
- Long COVID
- HIV care
- Lyme disease
- Recurrent infections
- Travel medicine
Common questions
How many Infectious Disease providers are in California?There are 1,121 Infectious Disease providers with active NPI records practicing in California, according to federal NPPES data refreshed monthly.
Do Infectious Disease providers in California offer telehealth?Yes. 322 of the 1,121 Infectious Disease providers in California (about 29%) report offering telehealth services in CMS data.
Which cities in California have the most Infectious Disease providers?Los Angeles (145), San Francisco (108), San Diego (76) have the highest concentration of Infectious Disease providers in California.
How many Infectious Disease providers in California received drug or device company payments?419 of 1,121 Infectious Disease providers in California (37%) 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 California treat?Infectious Disease providers 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 counts and profiles 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.
Do most Infectious Disease Specialists in California work in independent practices or large health systems?Among 717 Infectious Disease Specialists in California enrolled in Medicare, 26% bill through a solo or small practice with fewer than 10 clinicians, 7% through a mid-size group of 10 to 99, and 68% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
Which hospitals do Infectious Disease Specialists in California work at?According to CMS facility affiliation records, the California hospitals where the most Infectious Disease Specialists hold privileges are Stanford Health Care in Stanford; UCSF Medical Center in San Francisco; Ronald Reagan UCLA Medical Center in Los Angeles.
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