Hematologists (Internal Medicine) in California
Data updated monthly · Last refresh October 2026
179 Hematology (Internal Medicine) providers practice in California, including 105 (59%) offering telehealth. The largest concentration is in Duarte. 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.
179providers
105telehealth
Duartetop city
Hematology (Internal Medicine) by city in California
Choose a city to see providers there.
Hematology (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. Judy Cheng, MDStanford, CA · $2,547 in drug and device payments (2025) · Telehealth ·
(650) 723-4000 Dr. Laura Johnston, MDStanford, CA · No drug or device payments recorded (2025) ·
(650) 723-4000 Dr. Lawrence Leung, M.D.Stanford, CA · No drug or device payments recorded (2025) · Telehealth ·
(650) 723-4000 Dr. Lori Muffly, M.D.Stanford, CA · $23,050 in drug and device payments (2025) · Telehealth ·
(650) 723-4000 Dr. Mark Chao, M.D., PH.D.Stanford, CA · No drug or device payments recorded (2025) ·
(650) 723-4000 Dr. Melody Smith, MDStanford, CA · $427 in drug and device payments (2025) · Telehealth ·
(650) 723-4000 Dr. Michaela Liedtke, MDStanford, CA · $8,454 in drug and device payments (2025) · Telehealth ·
(650) 723-4000 Dr. Mohana Roy, M.D.Stanford, CA · $1,200 in drug and device payments (2025) · Telehealth ·
(650) 723-4000 Dr. Parveen Shiraz, MDStanford, CA · No drug or device payments recorded (2025) · Telehealth ·
(650) 723-4000 Dr. Peter Greenberg, M.D.Stanford, CA · $16 in drug and device payments (2025) · Telehealth ·
(650) 723-4000 Dr. Ravindra Majeti, M.D.Stanford, CA · $7,370 in drug and device payments (2025) ·
(650) 723-4000 Dr. Robert Lowsky, MDStanford, CA · No drug or device payments recorded (2025) · Telehealth ·
(650) 723-4000 Dr. Robert Negrin, M.D.Stanford, CA · No drug or device payments recorded (2025) · Telehealth ·
(650) 723-4000 Dr. Rondeep Brar, MDStanford, CA · $20,121 in drug and device payments (2025) · Telehealth ·
(650) 723-4000 Dr. Sally Arai, MDStanford, CA · $1,011 in drug and device payments (2025) · Telehealth ·
(650) 723-0822 Dr. Saurabh Dahiya, M.DStanford, CA · $40,588 in drug and device payments (2025) · Telehealth ·
(650) 723-4000 Dr. Steven Chan, M.D./PH.D.Stanford, CA · No drug or device payments recorded (2025) ·
(650) 714-8288 Dr. Surbhi Sidana, M.D.Stanford, CA · $61,369 in drug and device payments (2025) · Telehealth ·
(650) 723-4000 Dr. Sushma Bharadwaj, MDStanford, CA · No drug or device payments recorded (2025) · Telehealth ·
(650) 723-4000 Dr. Sydney Lu, MDStanford, CA · No drug or device payments recorded (2025) · Telehealth ·
(650) 723-4000 Dr. Tait Shanafelt, M.D.Stanford, CA · No drug or device payments recorded (2025) · Telehealth ·
(650) 723-4000 Dr. Tian Zhang, MDStanford, CA · $77 in drug and device payments (2025) · Telehealth ·
(650) 723-4000 Dr. Vanessa Kennedy, M.D.Stanford, CA · $17,260 in drug and device payments (2025) · Telehealth ·
(650) 723-4000 Dr. Wei Ding, MDStanford, CA · No drug or device payments recorded (2025) ·
(650) 723-4000 Dr. William Shomali, M.DStanford, CA · $1,962 in drug and device payments (2025) · Telehealth ·
(650) 723-4000 Dr. Esther Fermin, MDVictorville, CA · No drug or device payments recorded (2025) ·
(760) 245-6455 Dr. Shu Hsu, MDVisalia, CA · No drug or device payments recorded (2025) ·
(559) 624-3000 Dr. Noah Merin, M.D.West Hollywood, CA · $6,755 in drug and device payments (2025) · Telehealth ·
(310) 423-1160 Common questions
How many Hematology (Internal Medicine) providers are in California?There are 179 Hematology (Internal Medicine) providers with active NPI records practicing in California, according to federal NPPES data refreshed monthly.
Do Hematology (Internal Medicine) providers in California offer telehealth?Yes. 105 of the 179 Hematology (Internal Medicine) providers in California (about 59%) report offering telehealth services in CMS data.
Which cities in California have the most Hematology (Internal Medicine) providers?Duarte (62), Stanford (44), San Francisco (17) have the highest concentration of Hematology (Internal Medicine) providers in California.
How many Hematology (Internal Medicine) providers in California received drug or device company payments?106 of 179 Hematology (Internal Medicine) providers in California (59%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.
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 Hematologists (Internal Medicine) in California work in independent practices or large health systems?Among 131 Hematologists (Internal Medicine) in California enrolled in Medicare, 7% bill through a solo or small practice with fewer than 10 clinicians, 0% through a mid-size group of 10 to 99, and 93% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
Which hospitals do Hematologists (Internal Medicine) in California work at?According to CMS facility affiliation records, the California hospitals where the most Hematologists (Internal Medicine) hold privileges are Stanford Health Care in Stanford; Stanford Health Care Tri-Valley in Pleasanton; UCSF Medical Center in San Francisco.
Related reading on HealthcareDiscovery.AI
Hematology (Internal Medicine) in all 50 states Search all 179 in the directory Ask Zach for help choosing
Related
