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Hematologists and Oncologists in California

Data updated monthly · Last refresh October 2026

1,582 Hematology & Oncology providers practice in California, including 855 (54%) 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.

1,582providers
855telehealth
Los Angelestop city

Hematology & Oncology by city in California

Choose a city to see providers there.

Hematology & Oncology in Los Angeles152 providers
Hematology & Oncology in San Diego89 providers
Hematology & Oncology in Sacramento77 providers
Hematology & Oncology in San Francisco64 providers
Hematology & Oncology in Orange62 providers
Hematology & Oncology in La Jolla46 providers
Hematology & Oncology in Santa Monica43 providers
Hematology & Oncology in Torrance33 providers
Hematology & Oncology in Fresno31 providers
Hematology & Oncology in Stanford30 providers
Hematology & Oncology in Walnut Creek23 providers
Hematology & Oncology in Newport Beach21 providers
Hematology & Oncology in Rancho Mirage19 providers
Hematology & Oncology in Long Beach18 providers
Hematology & Oncology in Roseville17 providers
Hematology & Oncology in Fountain Valley17 providers
Hematology & Oncology in Beverly Hills16 providers
Hematology & Oncology in Santa Barbara16 providers
Hematology & Oncology in San Jose15 providers
Hematology & Oncology in Oakland14 providers
Hematology & Oncology in Downey14 providers
Hematology & Oncology in Anaheim14 providers
Hematology & Oncology in Irvine13 providers
Hematology & Oncology in Santa Rosa13 providers

Hematology & Oncology 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. Millie Leung, MD
Baldwin Park, CA · No drug or device payments recorded (2025) · (626) 851-1011
Dr. Rex Wong, MD
Baldwin Park, CA · No drug or device payments recorded (2025) · (626) 851-1011
Dr. Ana Borgas, MD
Bellflower, CA · No drug or device payments recorded (2025) · (562) 461-4033
Dr. Carole Most, MD
Bellflower, CA · No drug or device payments recorded (2025) · (562) 461-3000
Dr. Elizabeth Simmons, MD
Bellflower, CA · No drug or device payments recorded (2025) · (562) 461-3000
Dr. Everett Chen, MD
Bellflower, CA · No drug or device payments recorded (2025) · Telehealth · (562) 461-3000
Dr. Han Koh, MD
Bellflower, CA · $164 in drug and device payments (2025) · Telehealth · (562) 461-3000
Dr. Youssef Gamal, MD
Bellflower, CA · No drug or device payments recorded (2025) · (714) 399-0620
Dr. Akshiv Malhotra, MD
Berkeley, CA · $61 in drug and device payments (2025) · Telehealth · (415) 476-3360
Dr. Ann Wexler, MD
Berkeley, CA · $6,706 in drug and device payments (2025) · Telehealth · (510) 204-6402
Dr. David Irwin, M.D.
Berkeley, CA · No drug or device payments recorded (2025) · (510) 204-6402
Dr. Glenn Michelson, M.D.
Berkeley, CA · $338,568 in drug and device payments (2025) · (510) 647-4252
Dr. Janice Kirsch, M.D., M.P.H.
Berkeley, CA · No drug or device payments recorded (2025) · (510) 596-9077
Dr. Kevin Knopf, M.D.
Berkeley, CA · $4,636 in drug and device payments (2025) · Telehealth · (510) 204-1591
Dr. Nisha Hariharan, MD
Berkeley, CA · $116 in drug and device payments (2025) · Telehealth · (510) 420-8000
Dr. Oleg Krijanovski, MD, PHD
Berkeley, CA · $2,057 in drug and device payments (2025) · (510) 204-1591
Dr. Rajesh Behl, M.D.
Berkeley, CA · $164,984 in drug and device payments (2025) · Telehealth · (510) 204-1591
Dr. Susan Kao, MD
Berkeley, CA · No drug or device payments recorded (2025) · Telehealth · (510) 204-6401
Dr. Uma Suryadevara, MD
Berkeley, CA · $61 in drug and device payments (2025) · Telehealth · (510) 204-1591
Dr. Aashini Master, D.O
Beverly Hills, CA · $13,609 in drug and device payments (2025) · Telehealth · (310) 205-0771
Dr. Afshin Gabayan, M.D.
Beverly Hills, CA · $6,422 in drug and device payments (2025) · Telehealth · (310) 432-8900
Dr. Barry Rosenbloom, M.D.
Beverly Hills, CA · $7,120 in drug and device payments (2025) · Telehealth · (310) 888-8680
Dr. David Hoffman, M.D.
Beverly Hills, CA · $199 in drug and device payments (2025) · Telehealth · (310) 888-8680
Dr. David Wu, M.D.
Beverly Hills, CA · $37 in drug and device payments (2025) · Telehealth · (310) 432-8900
Dr. Dorothy Park, M.D.
Beverly Hills, CA · $26 in drug and device payments (2025) · (310) 888-8680
Dr. Emily Kaymen, M.D.
Beverly Hills, CA · $132 in drug and device payments (2025) · Telehealth · (310) 888-8680
Dr. Fred Rosenfelt, M.D.
Beverly Hills, CA · $161 in drug and device payments (2025) · Telehealth · (310) 205-0771
Dr. Howard Yeh, MD
Beverly Hills, CA · $5,295 in drug and device payments (2025) · Telehealth · (310) 432-8900
Dr. Jeremy Lorber, MD
Beverly Hills, CA · $32,171 in drug and device payments (2025) · Telehealth · (310) 888-8680
Dr. Julie Dunhill, M.D.
Beverly Hills, CA · No drug or device payments recorded (2025) · (310) 888-8680
Dr. Kevin Scher, MD MBA
Beverly Hills, CA · $26 in drug and device payments (2025) · Telehealth · (917) 921-1557
Dr. Leland Green, M.D.
Beverly Hills, CA · No drug or device payments recorded (2025) · (310) 888-8680
Dr. Linnea Chap, M.D.
Beverly Hills, CA · $85,178 in drug and device payments (2025) · Telehealth · (310) 432-8900
Dr. Philomena Mcandrew, M.D.
Beverly Hills, CA · $65 in drug and device payments (2025) · Telehealth · (310) 888-8680
Dr. Robert Decker, M.D.
Beverly Hills, CA · $26 in drug and device payments (2025) · (310) 888-8680
Dr. Arsinur Burcoglu-oral, MD
Brawley, CA · No drug or device payments recorded (2025) · (760) 351-3737
Dr. Edwin Jacobs, M.D.
Burbank, CA · $35 in drug and device payments (2025) · (818) 840-0921
Dr. Francesco Federico, M.D.
Burbank, CA · No drug or device payments recorded (2025) · (818) 840-0921
Dr. Gregg Olsen, M.D.
Burbank, CA · No drug or device payments recorded (2025) · (818) 840-0921
Dr. Kanwarpal Kahlon, M.D.
Burbank, CA · $33,318 in drug and device payments (2025) · Telehealth · (818) 842-8252
Dr. Karlton Wong, MD
Burbank, CA · $269 in drug and device payments (2025) · (818) 840-0921
Dr. Karo Arzoo, M.D.
Burbank, CA · $319 in drug and device payments (2025) · Telehealth · (818) 842-8252
Dr. Krisztina Larson, M.D.
Burbank, CA · $1,943 in drug and device payments (2025) · Telehealth · (818) 840-0921
Dr. Maher Dakroub, D.O.
Burbank, CA · $866 in drug and device payments (2025) · Telehealth · (818) 563-6278
Dr. Maurice Berkowitz, M.D.
Burbank, CA · $47 in drug and device payments (2025) · Telehealth · (818) 840-0921
Dr. Raul Mena, M.D.
Burbank, CA · No drug or device payments recorded (2025) · (818) 840-0921
Dr. Saghi Esfandiarifard
Burbank, CA · $4,171 in drug and device payments (2025) · Telehealth · (818) 806-9020
Dr. Monica Grova, MD
Burlingame, CA · $8 in drug and device payments (2025) · Telehealth · (650) 652-8787
Dr. Richard Schwartz, M.D.
Burlingame, CA · No drug or device payments recorded (2025) · (650) 344-6260
Dr. Keith Eilerman, M.D.
Camarillo, CA · No drug or device payments recorded (2025) · (805) 384-8071

Conditions Hematology & Oncology providers in California commonly treat

Patients often search by condition rather than specialty. These are conditions typically managed by Hematology & Oncology providers. Individual practices vary, so confirm with the provider before booking.

Common questions

How many Hematology & Oncology providers are in California?

There are 1,582 Hematology & Oncology providers with active NPI records practicing in California, according to federal NPPES data refreshed monthly.

Do Hematology & Oncology providers in California offer telehealth?

Yes. 855 of the 1,582 Hematology & Oncology providers in California (about 54%) report offering telehealth services in CMS data.

Which cities in California have the most Hematology & Oncology providers?

Los Angeles (152), San Diego (89), Sacramento (77) have the highest concentration of Hematology & Oncology providers in California.

How many Hematology & Oncology providers in California received drug or device company payments?

995 of 1,582 Hematology & Oncology providers in California (63%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.

What conditions do Hematology & Oncology providers in California treat?

Hematology & Oncology providers commonly treat breast cancer, lung cancer, lymphoma, leukemia, anemia 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 Hematologists and Oncologists in California work in independent practices or large health systems?

Among 1,081 Hematologists and Oncologists in California enrolled in Medicare, 11% bill through a solo or small practice with fewer than 10 clinicians, 12% through a mid-size group of 10 to 99, and 77% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.

Which hospitals do Hematologists and Oncologists in California work at?

According to CMS facility affiliation records, the California hospitals where the most Hematologists and Oncologists hold privileges are Ronald Reagan UCLA Medical Center in Los Angeles; Uci Health-Orange in Orange; Santa Monica - UCLA Med Ctr & Orthopaedic Hospital in Santa Monica.

Related reading on HealthcareDiscovery.AI

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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 Hematology & Oncology in California? Get featured.