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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 in Los Angeles145 providers
Infectious Disease in San Francisco108 providers
Infectious Disease in San Diego76 providers
Infectious Disease in Stanford58 providers
Infectious Disease in Sacramento56 providers
Infectious Disease in Torrance26 providers
Infectious Disease in Orange23 providers
Infectious Disease in Fresno20 providers
Infectious Disease in Loma Linda18 providers
Infectious Disease in Walnut Creek18 providers
Infectious Disease in Long Beach17 providers
Infectious Disease in Pasadena16 providers
Infectious Disease in Palo Alto15 providers
Infectious Disease in La Jolla15 providers
Infectious Disease in Santa Monica14 providers
Infectious Disease in San Jose14 providers
Infectious Disease in Oakland13 providers
Infectious Disease in Newport Beach13 providers
Infectious Disease in Bakersfield11 providers
Infectious Disease in Pomona10 providers
Infectious Disease in San Mateo9 providers
Infectious Disease in Santa Ana9 providers
Infectious Disease in Santa Barbara9 providers
Infectious Disease in Modesto8 providers

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. William Mackenzie, M.D.
Mather, CA · No drug or device payments recorded (2025) · (916) 843-7107
Dr. Marc Gurwith, M.D.
Menlo Park, CA · No drug or device payments recorded (2025) · (650) 823-1548
Dr. Marnie Elizaga, MD
Menlo Park, CA · No drug or device payments recorded (2025) · (650) 854-4984
Dr. Arthur Tolentino
Merced, CA · No drug or device payments recorded (2025) · (209) 564-3120
Dr. Nicolas Delapena, M.D.
Merced, CA · $595 in drug and device payments (2025) · (209) 722-1205
Dr. Steven Porter, M.D., PH.D.
Mill Valley, CA · No drug or device payments recorded (2025) · (415) 388-1052
Dr. Tom Chiang, M.D.
Mission Hills, CA · $12,933 in drug and device payments (2025) · Telehealth · (818) 365-9531
Dr. Amrita Kaur, D.O.
Modesto, CA · No drug or device payments recorded (2025) · Telehealth · (209) 550-4703
Dr. Manjit Dhillon, MD
Modesto, CA · $66 in drug and device payments (2025) · (209) 488-3728
Dr. Megan Sidana
Modesto, CA · $38 in drug and device payments (2025) · Telehealth · (209) 550-4703
Dr. Navneet Gill, M.D.
Modesto, CA · $170 in drug and device payments (2025) · (209) 248-7345
Dr. Razeq Shetab, M.D.
Modesto, CA · No drug or device payments recorded (2025) · (209) 578-1200
Dr. Salahuddin Bibi, M.D.
Modesto, CA · No drug or device payments recorded (2025) · (209) 524-1211
Dr. Thi Shwe, M.D.
Modesto, CA · $26 in drug and device payments (2025) · Telehealth · (209) 521-6097
Dr. Zarchi Sumon, M.D.
Modesto, CA · No drug or device payments recorded (2025) · (209) 735-6800
Dr. Mitchell Kushner, M.D.
Monrovia, CA · No drug or device payments recorded (2025) · (626) 256-1638
Dr. Leo Li, MD
Montebello, CA · No drug or device payments recorded (2025) · (818) 475-8014
Dr. Charmaine Peters, MD, MS
Monterey, CA · $291 in drug and device payments (2025) · (831) 242-8645
Dr. David Keller, MD
Monterey, CA · $56 in drug and device payments (2025) · Telehealth · (831) 333-3040
Dr. Geraldine Taplin, M.D
Monterey, CA · No drug or device payments recorded (2025) · (831) 771-1444
Dr. Martha Blum, MD
Monterey, CA · No drug or device payments recorded (2025) · Telehealth · (831) 330-3040
Dr. Pina Wong, MD
Monterey Park, CA · No drug or device payments recorded (2025) · (626) 308-0747
Dr. Tommy Lu, M.D.
Monterey Park, CA · No drug or device payments recorded (2025) · (951) 929-6260
Dr. Arunmozhi Aravagiri-do, MD
Moreno Valley, CA · No drug or device payments recorded (2025) · (951) 486-4000
Dr. Bruce Weng
Moreno Valley, CA · $244 in drug and device payments (2025) · (951) 486-4000
Dr. Made Sutjita, M.D.
Moreno Valley, CA · No drug or device payments recorded (2025) · (951) 486-5700
Dr. Andreas Kogelnik, M.D., PH.D.
Mountain View, CA · $30 in drug and device payments (2025) · (650) 691-8933
Dr. Ashley Styczynski, M.D.
Mountain View, CA · No drug or device payments recorded (2025) · (650) 934-7599
Dr. Aung Lin, DO
Mountain View, CA · $353 in drug and device payments (2025) · Telehealth · (650) 934-7599
Dr. Carol Kemper, MD
Mountain View, CA · No drug or device payments recorded (2025) · (650) 934-7599
Dr. Daniel Chelliah, MD
Mountain View, CA · $69 in drug and device payments (2025) · Telehealth · (650) 934-7599
Dr. Daniel Shin, M.D.
Mountain View, CA · $12 in drug and device payments (2025) · Telehealth · (650) 934-7599
Dr. Kristin Razzeca, M.D.
Mountain View, CA · No drug or device payments recorded (2025) · (650) 934-7599
Dr. Michele Tang, M.D.
Mountain View, CA · $275 in drug and device payments (2025) · (650) 934-7000
Dr. Emily Kim
Murrieta, CA · $2,221 in drug and device payments (2025) · Telehealth · (951) 679-5811
Dr. Thuan Le, M.D.
Murrieta, CA · $21,494 in drug and device payments (2025) · Telehealth · (951) 679-5811
Dr. Karen Smith, MD, MPH
Napa, CA · No drug or device payments recorded (2025) · (707) 253-4566
Dr. Antonio Cabinian, M.D.
National City, CA · $50 in drug and device payments (2025) · (619) 470-7000
Dr. Felisa Velesrubio, MD
National City, CA · No drug or device payments recorded (2025) · (619) 869-1296
Dr. Ellsworth Pryor, M.D
Newhall, CA · No drug or device payments recorded (2025) · (661) 255-8544
Dr. Wendy Clough, M.D.
Newhall, CA · $22 in drug and device payments (2025) · (661) 255-8544
Dr. Anjali Vora, M.D.
Newport Beach, CA · $698 in drug and device payments (2025) · Telehealth · (949) 515-3590
Dr. Bonnie Bock, MD
Newport Beach, CA · $110 in drug and device payments (2025) · (949) 645-9010
Dr. Douglas Cable, MD
Newport Beach, CA · No drug or device payments recorded (2025) · (949) 574-2628
Dr. Jae Shin, M.D.
Newport Beach, CA · $916 in drug and device payments (2025) · Telehealth · (949) 515-3590
Dr. Jeanne Spudick, D.O.
Newport Beach, CA · No drug or device payments recorded (2025) · (949) 640-4501
Dr. Joshua Chen, D.O.
Newport Beach, CA · $1,038 in drug and device payments (2025) · Telehealth · (949) 515-3590
Dr. Katherine Malkasian, M.D.
Newport Beach, CA · No drug or device payments recorded (2025) · (949) 644-1943
Dr. Khaing Myint
Newport Beach, CA · $2,593 in drug and device payments (2025) · Telehealth · (949) 375-6527
Dr. Martin Fee, MD
Newport Beach, CA · No drug or device payments recorded (2025) · Telehealth · (949) 791-3001

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.

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.

Related reading on HealthcareDiscovery.AI

Infectious Disease in all 50 states Search all 1,121 in the directory Ask Zach for help choosing

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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. Are you a Infectious Disease in California? Get featured.