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Hematology & Oncology in California

Data updated monthly · Last refresh August 2026

1,578 Hematology & Oncology providers practice in California, including 863 (55%) offering telehealth. The largest concentration is in Los Angeles. Profiles include Medicare quality scores where available.

1,578providers
863telehealth
Los Angelestop city

Hematology & Oncology providers by city in California

Los Angeles149 providers
San Diego88 providers
Sacramento74 providers
San Francisco63 providers
Orange61 providers
La Jolla47 providers
Santa Monica42 providers
Torrance33 providers

Highest rated Hematology & Oncology providers in California

Dr. Lynn Kong, MD
Ventura, CA · Quality score 100/100 · Telehealth · (805) 485-8709
Dr. Joel Lamon, MD
San Diego, CA · Quality score 100/100 · Telehealth · (858) 649-5100
Dr. Steven Eisenberg, D.O.
San Diego, CA · Quality score 100/100 · Telehealth · (588) 649-5100
Dr. Alberto Bessudo, M.D.
Encinitas, CA · Quality score 100/100 · Telehealth · (760) 452-3340
Dr. Mansoor Javeed, M.D.
Folsom, CA · Quality score 100/100 · Telehealth · (916) 250-0377
Dr. Khai Vu, M.D.
Fountain Valley, CA · Quality score 100/100 · Telehealth · (714) 432-9090
Dr. Raghu Nandan, M.D
Lakewood, CA · Quality score 100/100 · Telehealth · (562) 272-7630
Dr. Laurie Frakes, M.D.
Encinitas, CA · Quality score 100/100 · Telehealth · (760) 452-3340
Dr. Boris Bagdasarian, D.O.
Glendale, CA · Quality score 100/100 · Telehealth · (818) 409-0105
Dr. Howard Cheng, M.D.
Laguna Hills, CA · Quality score 100/100 · (949) 770-8168
Dr. Samir Kubba, M.D.
San Bernardino, CA · Quality score 100/100 · (909) 886-6806
Dr. Ravi Rao, MD
Fresno, CA · Quality score 100/100 · Telehealth · (559) 326-1222
Dr. Rajiv Malik, M.D.
San Bernardino, CA · Quality score 100/100 · (909) 886-6806
Dr. Paul Coluzzi, M.D.
Orange, CA · Quality score 100/100 · (714) 456-2986
Dr. Khosrow Mahdavi, MD
Costa Mesa, CA · Quality score 100/100 · Telehealth · (949) 999-2400
Dr. Jayaram Bharadwaj, M.D.
Anaheim, CA · Quality score 100/100 · Telehealth · (714) 999-1465
Dr. Vandana Agarwal, MD
Pomona, CA · Quality score 100/100 · Telehealth · (909) 620-5502
Dr. Leonard Hackett, M.D.
Fresno, CA · Quality score 100/100 · Telehealth · (559) 326-1222
Dr. Kishore Sehgal, M.D.
Hemet, CA · Quality score 100/100 · Telehealth · (951) 766-6460
Dr. Michael Kosmo, MD
Escondido, CA · Quality score 100/100 · (760) 747-8935

Common questions

How many Hematology & Oncology providers are in California?

There are 1,578 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. 863 of the 1,578 Hematology & Oncology providers in California (about 55%) report offering telehealth services in CMS data.

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

Los Angeles (149), San Diego (88), Sacramento (74) have the highest concentration of Hematology & Oncology providers in California.

Where does this data come from?

Provider counts and profiles come from the federal NPPES registry and CMS Doctors and Clinicians files, including MIPS quality scores where available. The directory refreshes monthly.

Related reading on HealthcareDiscovery.AI

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Related

Sources: NPPES (CMS), Doctors and Clinicians national files, MIPS. Updated monthly. This directory is informational and not medical advice. Are you a Hematology & Oncology in California? Get featured.