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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. Anjali Bharne, M.D
Encinitas, CA · No drug or device payments recorded (2025) · Telehealth · (760) 536-7700
Dr. John Schwerkoske, MD
Encinitas, CA · $4,008 in drug and device payments (2025) · Telehealth · (760) 452-3340
Dr. Laurie Frakes, M.D.
Encinitas, CA · $2,112 in drug and device payments (2025) · Telehealth · (760) 452-3340
Dr. Mina Nikanjam, MD PHD
Encinitas, CA · No drug or device payments recorded (2025) · Telehealth · (760) 536-7700
Dr. Rae Felthouse, M.D.
Encinitas, CA · No drug or device payments recorded (2025) · (760) 815-7853
Dr. Auayporn Nademanee, MD
Encino, CA · No drug or device payments recorded (2025) · (818) 888-8888
Dr. Avrum Bluming, MD
Encino, CA · No drug or device payments recorded (2025) · (818) 981-3818
Dr. Gary Dosik, MD
Encino, CA · No drug or device payments recorded (2025) · (818) 981-3818
Dr. Gary Lazar, M.D.
Encino, CA · No drug or device payments recorded (2025) · (818) 990-9572
Dr. Mina Sedrak, MD, MS
Encino, CA · $31 in drug and device payments (2025) · Telehealth · (818) 995-8044
Dr. Nimit Sudan, M.D.
Encino, CA · $31 in drug and device payments (2025) · Telehealth · (818) 995-8044
Dr. Solomon Hamburg, M.D.
Encino, CA · $18,056 in drug and device payments (2025) · Telehealth · (818) 995-8044
Dr. Dawn Elders, NP
Escondido, CA · No drug or device payments recorded (2025) · (760) 747-8935
Dr. Hardeep Phull, MD
Escondido, CA · $77,409 in drug and device payments (2025) · Telehealth · (760) 740-2715
Dr. Jeng-hsien Chen, M.D.
Escondido, CA · No drug or device payments recorded (2025) · (760) 745-3703
Dr. Michael Kosmo, MD
Escondido, CA · $27 in drug and device payments (2025) · (760) 747-8935
Dr. Cory Spencer, MD
Eureka, CA · No drug or device payments recorded (2025) · (707) 443-9371
Dr. Elie Richa, M.D.
Eureka, CA · $804 in drug and device payments (2025) · Telehealth · (707) 267-2060
Dr. Henry Greene, M.D.
Eureka, CA · No drug or device payments recorded (2025) · (707) 267-2060
Dr. Jonathan Lopez, MD
Fairfield, CA · $296 in drug and device payments (2025) · Telehealth · (707) 646-4000
Dr. Kanwaldeep Rasila, M.D.
Fairfield, CA · $303 in drug and device payments (2025) · Telehealth · (707) 427-4900
Dr. Yelena Krijanovski, M.D.
Fairfield, CA · $304 in drug and device payments (2025) · Telehealth · (707) 427-4900
Dr. Arun Kalra, MD
Folsom, CA · $330 in drug and device payments (2025) · Telehealth · (916) 250-0377
Dr. Mansoor Javeed, M.D.
Folsom, CA · $1,963 in drug and device payments (2025) · Telehealth · (916) 250-0377
Dr. Philip Sardar, MD
Folsom, CA · $277 in drug and device payments (2025) · (916) 250-0377
Dr. Charlie Yang, MD
Fontana, CA · $122 in drug and device payments (2025) · Telehealth · (909) 427-3910
Dr. Fengyu Shu, MD
Fontana, CA · No drug or device payments recorded (2025) · (909) 427-3910
Dr. Gerald Battersby, MD
Fontana, CA · No drug or device payments recorded (2025) · (909) 427-3910
Dr. Joseph Chan, M.D.
Fontana, CA · $68 in drug and device payments (2025) · Telehealth · (909) 427-5000
Dr. Sean Miller, M.D.
Fontana, CA · $180 in drug and device payments (2025) · Telehealth · (909) 427-5000
Dr. Sohail Saeed, MD
Fontana, CA · No drug or device payments recorded (2025) · (909) 427-3910
Dr. Sunil Patel, MD
Fontana, CA · $306 in drug and device payments (2025) · (909) 427-3910
Dr. Wanping Hu, MD
Fontana, CA · No drug or device payments recorded (2025) · Telehealth · (909) 427-3910
Dr. John Rochat, M.D.
Fort Bragg, CA · No drug or device payments recorded (2025) · (707) 961-4922
Dr. Amol Rao, M.D.
Fountain Valley, CA · $986 in drug and device payments (2025) · Telehealth · (714) 378-7330
Dr. Anas Raowas, M.D.
Fountain Valley, CA · $5,865 in drug and device payments (2025) · Telehealth · (405) 271-4022
Dr. Bichlien Nguyen, M.D.
Fountain Valley, CA · No drug or device payments recorded (2025) · (714) 378-5005
Dr. Eric Lee, M.D., PH.D.
Fountain Valley, CA · $27,248 in drug and device payments (2025) · Telehealth · (714) 698-0300
Dr. Gurpreet Multani, MD
Fountain Valley, CA · No drug or device payments recorded (2025) · Telehealth · (714) 378-7330
Dr. Ina Planas, M.D.
Fountain Valley, CA · No drug or device payments recorded (2025) · (714) 432-9090
Dr. Jack Jacoub, M.D.
Fountain Valley, CA · $287 in drug and device payments (2025) · Telehealth · (714) 378-7330
Dr. Kevin Do
Fountain Valley, CA · $8,082 in drug and device payments (2025) · Telehealth · (714) 698-0300
Dr. Khai Vu, M.D.
Fountain Valley, CA · $4,614 in drug and device payments (2025) · Telehealth · (714) 432-9090
Dr. Lalita Pandit, M.D.
Fountain Valley, CA · $8,462 in drug and device payments (2025) · Telehealth · (714) 432-9200
Dr. Muneeb Rehman, MD
Fountain Valley, CA · $102 in drug and device payments (2025) · Telehealth · (714) 698-0300
Dr. Pete Pow-anpongkul
Fountain Valley, CA · $9,901 in drug and device payments (2025) · Telehealth · (714) 698-0300
Dr. Ravi Shankar, M.D.
Fountain Valley, CA · $17 in drug and device payments (2025) · Telehealth · (657) 241-9755
Dr. Robert Moss, M.D.
Fountain Valley, CA · No drug or device payments recorded (2025) · (714) 641-1128
Dr. Rufina Pamela Mae Miel, MD
Fountain Valley, CA · $29,257 in drug and device payments (2025) · (714) 594-7820
Dr. Sarah Hassan, M.D
Fountain Valley, CA · $399 in drug and device payments (2025) · Telehealth · (714) 378-7330

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

Hematology & Oncology in all 50 states Search all 1,582 in the directory Ask Zach for help choosing

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Try a city like Tucson, a zip like 85016, or a specialty like psychiatry. For a doctor by name, use the full search.
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.