Hematology & Oncology in California
1,200 licensed hematologist-oncologists practicing in California across 230 cities.
This page republishes public records from the federal NPI Registry, which every licensed U.S. healthcare provider is required to maintain. These are federal-agency records, not a directory we compile.
Source: NPI Registry · last checked
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Click a city to filter the 50 providers shown below. California has providers in 230 cities total — search the full NPI Registry for cities not shown here.
NPI Registry records — Hematology & Oncology in California
38 of 50 shown have disclosed payments in CMS Open Payments (2024)
Showing 50 of 1200 federal NPI records, alphabetical by last name. Contact details come directly from the NPI Registry — verify currency with the provider's office. Pharma / device payment disclosures from CMS Open Payments are shown where the physician appears in that federal database.
In 2024, $4,152 was disclosed to this physician across 101 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($3,324) and category 18 ($499).
Largest single payer: NOVARTIS PHARMACEUTICALS CORPORATION ($668).
In 2024, $435 was disclosed to this physician across 2 transactions by pharmaceutical or medical-device companies.
Mostly forgiven debt ($300) and entertainment ($135).
Largest single payer: Sekisui Diagnostics, LLC ($300).
Haifaa Abdulhaq, MD
785 Medical Center Drive West, 203
Fresno, CA 93611 · (559) 387-1900
License: A111931 (CA)
In 2024, $80,418 was disclosed to this physician across 169 transactions by pharmaceutical or medical-device companies.
$8,371 was research funding (clinical-trial work); the remainder was charitable contributions ($33,283) and meals and beverages ($20,087).
Largest single payer: F. Hoffmann-La Roche AG ($28,168).
Nihal Essa Abdulla, MD
3822 Katella Ave Ste 200
Los Alamitos, CA 90720 · (562) 735-0602
License: A120904 (CA)
In 2024, $9,911 was disclosed to this physician across 275 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($6,231) and charitable contributions ($3,488).
Largest single payer: AstraZeneca Pharmaceuticals LP ($3,736).
In 2024, $61,330 was disclosed to this physician across 32 transactions by pharmaceutical or medical-device companies.
Mostly consulting fees ($51,433) and meals and beverages ($8,949).
Largest single payer: AbbVie Inc. ($35,222).
Oyewale Oyedeji Abidoye, MD
9850 Genesee Ave, Suite 400
La Jolla, CA 92037 · (858) 558-8666
License: A98243 (CA)
In 2023, $3,463 was disclosed to this physician across 6 transactions by pharmaceutical or medical-device companies.
Mostly meals and beverages ($3,208) and entertainment ($255).
Mohammed Isaac Abu Zaanona, MD
540 W Pueblo St
Santa Barbara, CA 93105 · (805) 879-0670
License: A192629 (CA)
In 2024, $183 was disclosed to this physician across 4 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($183).
Largest single payer: Sumitomo Pharma America, Inc. ($106).
Mohamad Mounir Adada, MD, PHD
1600 Eureka Rd
Roseville, CA 95661 · (916) 784-5626
License: A185371 (CA)
In 2024, $360 was disclosed to this physician across 3 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($360).
Largest single payer: Pfizer Inc. ($123).
Thompson Adams, MD
2336 Santa Monica Blvd Ste 301
Santa Monica, CA 90404 · (310) 829-5471
License: A22561 (CA)
Camille Adeimy, MD
1100 San Bernardino Rd, Suite 1100
Upland, CA 91786 · (909) 949-2242
License: A161191 (CA)
In 2023, $84 was disclosed to this physician across 2 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($66) and gifts ($18).
In 2024, $939 was disclosed to this physician across 9 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($939).
Largest single payer: Roche Diagnostics Corporation ($268).
Kent Marc-Josef Adler, MD
218 De Anza Blvd
San Mateo, CA 94402 · (650) 341-9131
License: G60386 (CA)
In 2024, $38 was disclosed to this physician across 2 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($38).
Largest single payer: AstraZeneca Pharmaceuticals LP ($38).
Adour Richard Adrouny, MD
2998 S Bascom Ave, Suite 200
San Jose, CA 95124 · (408) 356-1911
License: A34013 (CA)
In 2024, $786 was disclosed to this physician across 10 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($777) and gifts ($9).
Largest single payer: AstraZeneca Pharmaceuticals LP ($266).
Richy Agajanian, MD
11480 Brookshire Ave, Ste 309
Downey, CA 90241 · (562) 869-1201
License: A70830 (CA)
In 2023, $521 was disclosed to this physician across 3 transactions by pharmaceutical or medical-device companies.
Mostly acquisitions ($468) and entertainment ($28).
In 2024, $10,660 was disclosed to this physician across 161 transactions by pharmaceutical or medical-device companies.
Mostly charitable contributions ($6,508) and entertainment ($3,830).
Largest single payer: NOVARTIS PHARMACEUTICALS CORPORATION ($2,646).
Sangeeta Aggarwal, MD
751 S Bascom Ave, Oncology Dept
San Jose, CA 95128 · (408) 885-5000
License: C52085 (CA)
In 2024, $46 was disclosed to this physician across 2 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($28) and gifts ($18).
Largest single payer: EMD Serono, Inc. ($28).
Neeraj Agnihotri, MD
38660 Medical Center Dr, Suite A-380
Palmdale, CA 93551 · (661) 948-5928
License: A113667 (CA)
In 2024, $203 was disclosed to this physician across 8 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($203).
Largest single payer: Medtronic, Inc. ($45).
In 2024, $3,285 was disclosed to this physician across 9 transactions by pharmaceutical or medical-device companies.
Mostly consulting fees ($3,008) and entertainment ($277).
Largest single payer: Jazz Pharmaceuticals Inc. ($3,118).
In 2023, $19 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly entertainment ($19).
In 2024, $481 was disclosed to this physician across 19 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($481).
Largest single payer: Celgene Corporation ($84).
In 2024, $129 was disclosed to this physician across 5 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($129).
Largest single payer: Tempus AI, Inc ($129).
Rafi Syed Ahmed, MD
16105 Sand Canyon Ave Ste 230
Irvine, CA 92618 · (949) 764-4060
License: A112161 (CA)
Samina Ahmed, MD
710 Lawrence Expy, Dept. 440
Santa Clara, CA 95051 · (408) 851-4328
License: A103776 (CA)
In 2024, $827 was disclosed to this physician across 36 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($811) and gifts ($17).
Largest single payer: AstraZeneca Pharmaceuticals LP ($134).
Gorgun Akpek, MD, MHS
715 Tank Farm Rd Ste C
San Luis Obispo, CA 93401 · (805) 543-5577
License: C152104 (CA)
In 2024, $7,960 was disclosed to this physician across 265 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($5,388) and charitable contributions ($1,450).
Largest single payer: AstraZeneca Pharmaceuticals LP ($1,683).
Kadhim Al Banaa, MD
9333 Genesee Ave Ste 310
San Diego, CA 92121 · (858) 657-5281
License: A170000 (CA)
In 2024, $261 was disclosed to this physician across 2 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($261).
Largest single payer: Amgen Inc. ($261).
Mhd Monzr Al Malki, MD
1500 E. Duarte Rd., Department of Hematology & Hct
Duarte, CA 91010 · (626) 256-4673
License: A128983 (CA)
In 2024, $5,192 was disclosed to this physician across 9 transactions by pharmaceutical or medical-device companies.
Mostly charitable contributions ($4,875) and entertainment ($317).
Largest single payer: Sobi, Inc ($2,797).
In 2024, $784 was disclosed to this physician across 9 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($784).
Largest single payer: ADC Therapeutics America, Inc. ($725).
Ghassan Al-Jazayrly, MD
1300 N Vermont Ave # 606
Los Angeles, CA 90027 · (323) 660-6200
License: A52470 (CA)
In 2024, $57 was disclosed to this physician across 2 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($57).
Largest single payer: Adaptive Biotechnologies Corporation ($35).
In 2024, $40 was disclosed to this physician across 2 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($22) and gifts ($18).
Largest single payer: EMD Serono, Inc. ($22).
In 2024, $104 was disclosed to this physician across 2 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($104).
Largest single payer: Regeneron Healthcare Solutions, Inc. ($78).
Juan M Alcantar, MD
19950 Rinaldi St Ste 301
Porter Ranch, CA 91326 · (818) 271-2500
License: A93796 (CA)
In 2023, $18 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly gifts ($18).
Ibrahim Taha Aldoss, MD
1500 E. Duarte Rd., Department of Hematology & Hct
Duarte, CA 91010 · (626) 256-4673
License: A11706 (CA)
In 2024, $42,758 was disclosed to this physician across 31 transactions by pharmaceutical or medical-device companies.
Mostly charitable contributions ($28,318) and meals and beverages ($10,183).
Largest single payer: Jazz Pharmaceuticals Inc. ($21,537).
Edward Robert Alexson, MD
1401 N Tustin Ave, Suite 220
Santa Ana, CA 92705 · (714) 835-4800
License: G27314 (CA)
Alain Algazi, MD
505 Parnassus Ave # M1286, Box 1270
San Francisco, CA 94143 · (415) 476-0624
License: A93703 (CA)
In 2024, $10,029 was disclosed to this physician across 4 transactions by pharmaceutical or medical-device companies.
Mostly meals and beverages ($9,750) and entertainment ($279).
Largest single payer: F. Hoffmann-La Roche AG ($10,029).
In 2024, $65,955 was disclosed to this physician across 48 transactions by pharmaceutical or medical-device companies.
Mostly consulting fees ($43,788) and charitable contributions ($18,751).
Largest single payer: Incyte Corporation ($23,416).
Mir M Ali, MD
1800 Hollister Dr Ste 112
Libertyville, IL 60048 · (847) 367-6781
License: 036.152740 (IL)
In 2024, $22 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly entertainment ($22).
Largest single payer: AstraZeneca Pharmaceuticals LP ($22).
Sami Mohammed Ali, MD
1800 Tree Ln Ste 350
Snellville, GA 30078 · (770) 979-0200
License: 105488 (GA)
In 2024, $6,449 was disclosed to this physician across 254 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($5,341) and category 18 ($1,000).
Largest single payer: NOVARTIS PHARMACEUTICALS CORPORATION ($1,486).
Sarah Ali, MD
15031 Rinaldi St Ste 150
Mission Hills, CA 91345 · (818) 660-4700
License: C172957 (CA)
In 2024, $87 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly entertainment ($87).
Largest single payer: ImmunoGen, Inc. ($87).
In 2024, $1,277 was disclosed to this physician across 38 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($1,202) and gifts ($75).
Largest single payer: E.R. Squibb & Sons, L.L.C. ($230).
In 2024, $980 was disclosed to this physician across 40 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($980).
Largest single payer: Pfizer Inc. ($171).
Sultanali Alidina, MD
3300 E South St, Suite 209
Lakewood, CA 90805 · (562) 630-3434
License: A47735 (CA)
Kamran Alimoghaddam, MD
Aghdasieh St Ajudanyeh St
Tehran, TEHRAN 19578 · (912) 171-1635
License: 36577 (ZZ)
In 2024, $739 was disclosed to this physician across 7 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($640) and gifts ($99).
Largest single payer: Janssen Biotech, Inc. ($377).
Kousay Abdullah Alkourainy, MD
480 4th Ave, Suite 409
Chula Vista, CA 91910 · (619) 425-2080
License: A39783 (CA)
Ashley Elizabeth Aller, MD
201 16th Ave E
Seattle, WA 98112 · (206) 326-3000
License: MD6154597 (WA)
Showing 50 of 1200. Search all on NPI Registry →
Payment totals shown for the latest published program year (2024). Presence of disclosed payments is not, on its own, a conflict of interest. Physicians dispute records directly with CMS (dispute process). How we show this.
Open Payments figures as displayed on . Corrections flow from the manufacturer through CMS and are adopted on our next refresh.
What this page is: a republication of public federal NPI Registry records, filtered to the hematology & oncology taxonomy. It is not a directory we curate, and inclusion is automatic based on each provider's own NPI filing with CMS. Providers who believe their NPI record is inaccurate should update it directly with CMS at npiregistry.cms.hhs.gov; our next refresh adopts the corrected federal record.
Practice info disclaimer: Provider addresses and phone numbers come from the NPI Registry, which providers update at their discretion. Always call ahead to confirm the provider is currently accepting patients and is at the listed address.
Medical disclaimer: This page is not a quality ranking and does not constitute medical advice or endorsement. Choose a provider in consultation with your primary care physician or care team.
Source: NPI Registry (taxonomy: Hematology & Oncology) · Last checked: 2026-04-20