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. Carlos Carrera, M.D.San Diego, CA · No drug or device payments recorded (2025) ·
(858) 534-5407 Dr. Donald Newman, M.D.San Diego, CA · No drug or device payments recorded (2025) ·
(858) 499-5523 Dr. Edward Ball, M.D.San Diego, CA · No drug or device payments recorded (2025) ·
(800) 926-8273 Dr. Edward Libby, MDSan Diego, CA · No drug or device payments recorded (2025) ·
(800) 926-8273 Dr. Ellen CusanoSan Diego, CA · No drug or device payments recorded (2025) ·
(858) 657-6028 Dr. John Adamson, MDSan Diego, CA · $109 in drug and device payments (2025) · Telehealth ·
(858) 405-2272 Dr. Ling Huang, MDSan Diego, CA · $280 in drug and device payments (2025) ·
(800) 926-8273 Dr. Thomas Sweet, MDSan Diego, CA · No drug or device payments recorded (2025) · Telehealth ·
(858) 350-9703 Dr. Alan Glassberg, M.D.San Francisco, CA · No drug or device payments recorded (2025) ·
(415) 353-9888 Dr. Alfred ChungSan Francisco, CA · $3,174 in drug and device payments (2025) · Telehealth ·
(415) 353-2421 Dr. Alissa Kleinhenz, MDSan Francisco, CA · No drug or device payments recorded (2025) ·
(415) 353-2421 Dr. Andrew Leavitt, M.D.San Francisco, CA · $29,229 in drug and device payments (2025) · Telehealth ·
(415) 514-3432 Dr. Annabel Frank, MDSan Francisco, CA · No drug or device payments recorded (2025) ·
(917) 863-1257 Dr. Anna ParksSan Francisco, CA · $125 in drug and device payments (2025) · Telehealth ·
(415) 476-1528 Dr. Charles Linker, MDSan Francisco, CA · No drug or device payments recorded (2025) ·
(415) 353-2421 Dr. Chiaching Wang, MDSan Francisco, CA · $164 in drug and device payments (2025) · Telehealth ·
(415) 476-9363 Dr. Corynn KasapSan Francisco, CA · No drug or device payments recorded (2025) ·
(415) 341-5446 Dr. Debajyoti Datta, M.D.San Francisco, CA · No drug or device payments recorded (2025) · Telehealth ·
(415) 353-2421 Dr. Gallia Levy, MD, PHDSan Francisco, CA · No drug or device payments recorded (2025) ·
(415) 443-9673 Dr. Hope Rugo, MDSan Francisco, CA · $67,342 in drug and device payments (2025) · Telehealth ·
(415) 353-7070 Dr. Jack Levin, M.D.San Francisco, CA · No drug or device payments recorded (2025) ·
(415) 750-6913 Dr. Karin Gaensler, MDSan Francisco, CA · No drug or device payments recorded (2025) · Telehealth ·
(415) 353-2421 Dr. Layla Van Doren, MDSan Francisco, CA · $7,903 in drug and device payments (2025) · Telehealth ·
(415) 353-2421 Dr. Marina Heskel, MDSan Francisco, CA · $151 in drug and device payments (2025) · Telehealth ·
(415) 353-2051 Dr. Vinayak Prasad, M.D.San Francisco, CA · $18 in drug and device payments (2025) ·
(415) 206-8000 Dr. David Loftus, M.D.San Jose, CA · No drug or device payments recorded (2025) ·
(408) 885-5000 Dr. Gwendolyn Ho, MDSan Jose, CA · $36 in drug and device payments (2025) · Telehealth ·
(408) 426-4900 Dr. Leon Rabinowitz, M.D.San Jose, CA · No drug or device payments recorded (2025) ·
(408) 947-1233 Dr. Margaret Krackeler, MDSan Jose, CA · $73 in drug and device payments (2025) ·
(408) 972-6560 Dr. James Poth, MDSanta Cruz, CA · No drug or device payments recorded (2025) ·
(831) 426-0607 Dr. Vivek ShahSanta Monica, CA · $362 in drug and device payments (2025) · Telehealth ·
(310) 453-5654 Dr. Adam Sperling, MD, PHDStanford, CA · No drug or device payments recorded (2025) · Telehealth ·
(650) 723-4000 Dr. Beth Martin, MDStanford, CA · No drug or device payments recorded (2025) · Telehealth ·
(650) 723-4000 Dr. Beverly Mitchell, MDStanford, CA · No drug or device payments recorded (2025) ·
(650) 723-4000 Dr. Bruno Medeiros, MDStanford, CA · No drug or device payments recorded (2025) ·
(650) 723-4000 Dr. Calvin Kuo, M.D. PH.D.Stanford, CA · $1,053 in drug and device payments (2025) ·
(650) 736-1428 Dr. Caroline Berube, MDStanford, CA · $109 in drug and device payments (2025) · Telehealth ·
(650) 723-4000 Dr. Christopher Pleyer, MDStanford, CA · No drug or device payments recorded (2025) · Telehealth ·
(650) 723-4000 Dr. David Iberri, MDStanford, CA · No drug or device payments recorded (2025) · Telehealth ·
(650) 723-4000 Dr. David Miklos, M.D., PH. D.Stanford, CA · $11,755 in drug and device payments (2025) · Telehealth ·
(650) 723-4000 Dr. Deepu Madduri, MDStanford, CA · $47 in drug and device payments (2025) ·
(650) 723-4000 Dr. Elizabeth Price, MDStanford, CA · No drug or device payments recorded (2025) ·
(650) 723-4000 Dr. Emily Liang, MDStanford, CA · $116 in drug and device payments (2025) ·
(650) 723-4000 Dr. Erik Eckhert, M.D.Stanford, CA · No drug or device payments recorded (2025) ·
(650) 723-6661 Dr. Everett Meyer, MD PHDStanford, CA · No drug or device payments recorded (2025) · Telehealth ·
(650) 723-4000 Dr. Ghazal Salmasi, M.D.Stanford, CA · No drug or device payments recorded (2025) · Telehealth ·
(650) 497-8000 Dr. Hany Elmariah, MDStanford, CA · $3,957 in drug and device payments (2025) · Telehealth ·
(650) 723-4000 Dr. James Malone, MDStanford, CA · $17 in drug and device payments (2025) ·
(650) 723-4000 Dr. Jared Wallace, MDStanford, CA · No drug or device payments recorded (2025) ·
(650) 723-4000 Dr. Judith Shizuru, MD,PHDStanford, CA · No drug or device payments recorded (2025) · Telehealth ·
(650) 723-4000 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.
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