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. Paul Ford, M.D.Stanford, CA · No drug or device payments recorded (2025) · Telehealth ·
(650) 723-4000 Dr. Pei Qiong Qin, MDStanford, CA · No drug or device payments recorded (2025) ·
(650) 723-4000 Dr. Peter Pompei, M.D.Stanford, CA · $23 in drug and device payments (2025) · Telehealth ·
(650) 498-7417 Dr. Peter Rudd, MDStanford, CA · No drug or device payments recorded (2025) ·
(650) 723-4000 Dr. Pooja Lalchandani, MDStanford, CA · No drug or device payments recorded (2025) ·
(650) 723-4000 Dr. Poonam HosamaniStanford, CA · No drug or device payments recorded (2025) ·
(650) 723-4000 Dr. Preetha Basaviah, M.D.Stanford, CA · No drug or device payments recorded (2025) ·
(650) 723-4000 Dr. Prerak Juthani, MDStanford, CA · No drug or device payments recorded (2025) ·
(650) 723-4000 Dr. Priti Patel, MDStanford, CA · No drug or device payments recorded (2025) ·
(650) 723-6661 Dr. Priyanka Pillai, M.D.Stanford, CA · No drug or device payments recorded (2025) ·
(650) 723-4000 Dr. Quan Tran, MDStanford, CA · No drug or device payments recorded (2025) ·
(650) 723-4000 Dr. Rachan Narala, MCStanford, CA · No drug or device payments recorded (2025) ·
(650) 723-4000 Dr. Rachel Dubner, MDStanford, CA · No drug or device payments recorded (2025) ·
(650) 723-1150 Dr. Rajaie Batniji, M.D., D.PHILStanford, CA · No drug or device payments recorded (2025) ·
(650) 723-4000 Dr. Ramneek Rai, M.D.Stanford, CA · No drug or device payments recorded (2025) ·
(650) 723-4000 Dr. Randall Stafford, MD, PHDStanford, CA · No drug or device payments recorded (2025) · Telehealth ·
(650) 723-4000 Dr. Rebecca Sands, DOStanford, CA · No drug or device payments recorded (2025) ·
(650) 723-4000 Dr. Rebecca Tisdale, M.D.Stanford, CA · No drug or device payments recorded (2025) ·
(650) 723-6661 Dr. Rex Jamison, MDStanford, CA · No drug or device payments recorded (2025) ·
(650) 723-4000 Dr. Richard Wittman, MDStanford, CA · No drug or device payments recorded (2025) ·
(650) 723-4000 Dr. Richie Manikat, MDStanford, CA · $53 in drug and device payments (2025) ·
(650) 723-4000 Dr. Rishav Adhikari, MDStanford, CA · No drug or device payments recorded (2025) ·
(650) 723-4000 Dr. Rita Pandya, MDStanford, CA · No drug or device payments recorded (2025) ·
(650) 498-4560 Dr. Robert Turcott, MDStanford, CA · No drug or device payments recorded (2025) ·
(650) 248-6854 Dr. Ron Li, MDStanford, CA · No drug or device payments recorded (2025) ·
(650) 723-4000 Dr. Roopa Dhatt, MDStanford, CA · No drug or device payments recorded (2025) ·
(650) 723-4000 Dr. Rosaline Vasquez, MDStanford, CA · No drug or device payments recorded (2025) · Telehealth ·
(650) 723-6961 Dr. Russ Altman, M.D.Stanford, CA · No drug or device payments recorded (2025) ·
(650) 723-4000 Dr. Ryan Chiang, MDStanford, CA · No drug or device payments recorded (2025) ·
(650) 723-4000 Dr. Ryan Huss, M.D.Stanford, CA · No drug or device payments recorded (2025) ·
(650) 723-6661 Dr. Sahar Taghvaei, DOStanford, CA · No drug or device payments recorded (2025) ·
(650) 723-4000 Dr. Sai Ankita Devareddy, MDStanford, CA · $297 in drug and device payments (2025) ·
(650) 723-4000 Dr. Saloni Maharaj, M.D.Stanford, CA · No drug or device payments recorded (2025) ·
(650) 723-4000 Dr. Samantha Garcia, MDStanford, CA · No drug or device payments recorded (2025) ·
(650) 723-4000 Dr. Samantha Shapiro, MDStanford, CA · No drug or device payments recorded (2025) ·
(650) 723-5948 Dr. Sandra Tsai, MDStanford, CA · $190 in drug and device payments (2025) · Telehealth ·
(650) 723-4000 Dr. Sandy Tam, MDStanford, CA · No drug or device payments recorded (2025) ·
(650) 498-4556 Dr. Sanjiv Singh, MD, JDStanford, CA · No drug or device payments recorded (2025) ·
(650) 498-4556 Dr. Sarah Russell, MD, MPHILStanford, CA · No drug or device payments recorded (2025) ·
(650) 723-4000 Dr. Sarita Khemani, MDStanford, CA · No drug or device payments recorded (2025) ·
(650) 723-4000 Dr. Savannah Karmen-tuohy, MDStanford, CA · No drug or device payments recorded (2025) ·
(650) 723-4000 Dr. Sejal Hathi, MD, MBAStanford, CA · No drug or device payments recorded (2025) ·
(650) 723-4000 Dr. Shadi Bagherzadeh, M.D.Stanford, CA · $362 in drug and device payments (2025) ·
(818) 964-7280 Dr. Shalini Mohan, M.D.Stanford, CA · No drug or device payments recorded (2025) ·
(408) 318-8662 Dr. Shantanu Nundy, M.D.Stanford, CA · No drug or device payments recorded (2025) ·
(650) 723-4000 Dr. Sharif Vakili, MDStanford, CA · No drug or device payments recorded (2025) · Telehealth ·
(650) 723-4000 Dr. Sharon Hung, M.D.Stanford, CA · No drug or device payments recorded (2025) · Telehealth ·
(650) 723-4000 Dr. Sheena Amin, MDStanford, CA · $141 in drug and device payments (2025) ·
(650) 723-4000 Dr. Sheila Kapyur, MDStanford, CA · No drug or device payments recorded (2025) ·
(650) 723-4000 Dr. Sheila Ojeaburu, MDStanford, CA · No drug or device payments recorded (2025) ·
(650) 723-4000 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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