Internal Medicine Doctors in California
Data updated monthly · Last refresh October 2026
17,715 Internal Medicine providers practice in California, including 4,245 (24%) 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.
17,715providers
4,245telehealth
Los Angelestop city
Internal Medicine by city in California
Choose a city to see providers there.
Internal Medicine 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. Manuel Manrique Chavez, MD Dr. Mehul Sonawala, M.D.Pomona, CA · $135 in drug and device payments (2025) · Telehealth ·
(909) 620-7769 Dr. Monica Wong, M.D.Pomona, CA · No drug or device payments recorded (2025) ·
(909) 868-0235 Dr. Nandini Gowda, M.D.Pomona, CA · No drug or device payments recorded (2025) ·
(909) 623-6116 Dr. Nitin Chilakamarri, M.D. Dr. Parveen Virani, MDPomona, CA · No drug or device payments recorded (2025) ·
(909) 620-7200 Dr. Praveena Jeereddi, MDPomona, CA · No drug or device payments recorded (2025) ·
(909) 620-7200 Dr. Redemption Geronimo, MDPomona, CA · $225 in drug and device payments (2025) · Telehealth ·
(909) 447-8585 Dr. Rishu Marwaha, MDPomona, CA · $45 in drug and device payments (2025) · Telehealth ·
(909) 620-4373 Dr. Sachi Kaneko, DOPomona, CA · No drug or device payments recorded (2025) ·
(909) 469-5589 Dr. Sarah Cadman, M.D.Pomona, CA · No drug or device payments recorded (2025) ·
(909) 398-1550 Dr. Thuan Pham, MDPomona, CA · No drug or device payments recorded (2025) ·
(909) 595-1221 Dr. Uzma Waraich, M.D.Pomona, CA · $155 in drug and device payments (2025) · Telehealth ·
(909) 620-4373 Dr. Veronique Hourany, M.D. Dr. Alaleh Sareh, MD.Porter Ranch, CA · No drug or device payments recorded (2025) · Telehealth ·
(818) 403-2420 Dr. Fredrick Russo, MD.Porter Ranch, CA · No drug or device payments recorded (2025) ·
(818) 403-2420 Dr. Jeff Borenstein, MDPorter Ranch, CA · No drug or device payments recorded (2025) · Telehealth ·
(818) 271-2400 Dr. Jyotsna Sharma, M.B.B.SPorter Ranch, CA · No drug or device payments recorded (2025) · Telehealth ·
(818) 271-2400 Dr. Michael Nelson, MD.Porter Ranch, CA · $104 in drug and device payments (2025) · Telehealth ·
(818) 403-2420 Dr. Michelle Emi, M.D.Porter Ranch, CA · No drug or device payments recorded (2025) ·
(818) 271-2400 Dr. Nona Ahankoob, M.D.Porter Ranch, CA · No drug or device payments recorded (2025) · Telehealth ·
(818) 403-2400 Dr. Renata Selak Stankovic, M.D.Porter Ranch, CA · No drug or device payments recorded (2025) · Telehealth ·
(818) 271-2400 Dr. Richard Landers, MDPorter Ranch, CA · No drug or device payments recorded (2025) ·
(818) 403-2420 Dr. Salima Thobani, MDPorter Ranch, CA · $36 in drug and device payments (2025) ·
(310) 570-8337 Dr. Sam Mubara, MDPorter Ranch, CA · No drug or device payments recorded (2025) ·
(818) 363-2852 Dr. Vindeep BhandariPorter Ranch, CA · No drug or device payments recorded (2025) ·
(818) 271-2400 Dr. Akashdeep Khahera, M.D.Porterville, CA · No drug or device payments recorded (2025) ·
(559) 784-1110 Dr. Alla Liberstein, M.D.Porterville, CA · $49 in drug and device payments (2025) ·
(559) 854-7001 Dr. Antonio Durazo, M.D.Porterville, CA · No drug or device payments recorded (2025) · Telehealth ·
(559) 781-8080 Dr. Austin Rifkin, MDPorterville, CA · No drug or device payments recorded (2025) ·
(559) 784-1110 Dr. Bennett Bird, DOPorterville, CA · No drug or device payments recorded (2025) ·
(559) 784-1110 Dr. Brett Mullin, M.D.Porterville, CA · No drug or device payments recorded (2025) ·
(559) 791-3880 Dr. Cynthia Jones, M.D.Porterville, CA · No drug or device payments recorded (2025) ·
(559) 781-7242 Dr. Firas Alhalaibeh, M.DPorterville, CA · No drug or device payments recorded (2025) ·
(559) 616-1757 Dr. Ghufran Quresh, MDPorterville, CA · $25 in drug and device payments (2025) ·
(559) 788-6156 Dr. Hanh Hoang, M.D.Porterville, CA · No drug or device payments recorded (2025) ·
(559) 782-3900 Dr. Iqbal Bal, M.D.Porterville, CA · No drug or device payments recorded (2025) ·
(559) 784-2316 Dr. Jasvir Gill, MDPorterville, CA · No drug or device payments recorded (2025) ·
(559) 784-1110 Dr. John Cabrera, MDPorterville, CA · $233 in drug and device payments (2025) ·
(559) 784-1110 Dr. Kannappan Mohan, MDPorterville, CA · $280 in drug and device payments (2025) ·
(559) 781-6655 Dr. Karrie Lau, D.O.Porterville, CA · No drug or device payments recorded (2025) ·
(559) 791-3880 Dr. Leevaneigh Reghunathan, M.D.Porterville, CA · No drug or device payments recorded (2025) ·
(559) 784-1110 Dr. Mario Argueta Turcios, MDPorterville, CA · No drug or device payments recorded (2025) ·
(559) 784-1110 Dr. Maryann Pagulayan-sy, M.D.Porterville, CA · No drug or device payments recorded (2025) · Telehealth ·
(559) 781-7980 Dr. Matthew Sette, MDPorterville, CA · No drug or device payments recorded (2025) ·
(559) 784-1110 Dr. Mustafa Alsharafi, MDPorterville, CA · $25 in drug and device payments (2025) ·
(559) 788-6156 Dr. Nellya Kandkhorova, MDPorterville, CA · No drug or device payments recorded (2025) ·
(559) 781-7242 Dr. Raafat Hana, M.DPorterville, CA · No drug or device payments recorded (2025) ·
(559) 784-2316 Dr. Rakesh Jindal, M.D.Porterville, CA · No drug or device payments recorded (2025) ·
(559) 781-3931 Conditions Internal Medicine providers in California commonly treat
Patients often search by condition rather than specialty. These are conditions typically managed by Internal Medicine providers. Individual practices vary, so confirm with the provider before booking.
- High blood pressure
- Type 2 diabetes
- High cholesterol
- Preventive care
- Chronic disease management
Common questions
How many Internal Medicine providers are in California?There are 17,715 Internal Medicine providers with active NPI records practicing in California, according to federal NPPES data refreshed monthly.
Do Internal Medicine providers in California offer telehealth?Yes. 4,245 of the 17,715 Internal Medicine providers in California (about 24%) report offering telehealth services in CMS data.
Which cities in California have the most Internal Medicine providers?Los Angeles (1,417), San Francisco (1,322), San Diego (970) have the highest concentration of Internal Medicine providers in California.
How many Internal Medicine providers in California received drug or device company payments?5,614 of 17,715 Internal Medicine providers in California (32%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.
What conditions do Internal Medicine providers in California treat?Internal Medicine providers commonly treat high blood pressure, type 2 diabetes, high cholesterol, preventive care, chronic disease management 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 Internal Medicine Doctors in California work in independent practices or large health systems?Among 10,847 Internal Medicine Doctors in California enrolled in Medicare, 20% bill through a solo or small practice with fewer than 10 clinicians, 12% through a mid-size group of 10 to 99, and 67% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
Which hospitals do Internal Medicine Doctors in California work at?According to CMS facility affiliation records, the California hospitals where the most Internal Medicine Doctors 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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