CancerDrs

Gynecologic Oncology in California

228 licensed gynecologic oncologists practicing in California across 86 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 86 cities total — search the full NPI Registry for cities not shown here.

NPI Registry records — Gynecologic Oncology in California

44 of 50 shown have disclosed payments in CMS Open Payments (2024)

Showing 50 of 228 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.

Lisa N Abaid, MD, MPH

351 Hospital Rd, Suite 507

Newport Beach, CA 92663 · (949) 642-1361

License: A104885 (CA)

NPI 1295943132 →

In 2024, $50 was disclosed to this physician across 2 transactions by pharmaceutical or medical-device companies.

Mostly entertainment ($50).

Largest single payer: Intuitive Surgical, Inc. ($34).

Itemized records on CMS Open Payments →

Alireza Abidi, MD

4860 Y St, Ob/gyn, Suite 2500

Sacramento, CA 95817 · (916) 734-6930

License: A90381 (CA)

NPI 1215919477 →

In 2023, $442 was disclosed to this physician across 4 transactions by pharmaceutical or medical-device companies.

Mostly entertainment ($242) and charitable contributions ($200).

Itemized records on CMS Open Payments →

Turgut Alagoz, MD

10100 Se Sunnyside Rd

Clackamas, OR 97015 · (800) 813-2000

License: MD228098 (OR)

NPI 1336297266 →

Federico Alva, MD

18433 Roscoe Blvd, #203

Northridge, CA 91325 · (818) 349-5228

License: A031407 (CA)

NPI 1649200379 →

Edwin A Alvarez, MD

4860 Y St, Suite 2500

Sacramento, CA 95817 · (916) 734-6938

License: A78109 (CA)

NPI 1710197330 →

In 2024, $241 was disclosed to this physician across 6 transactions by pharmaceutical or medical-device companies.

Mostly entertainment ($177) and gifts ($65).

Largest single payer: Intuitive Surgical, Inc. ($92).

Itemized records on CMS Open Payments →

Kristen Marie Anderson, MD, PHD

26520 Cactus Ave Ste B2020

Moreno Valley, CA 92555 · (951) 486-4000

License: A129812 (CA)

NPI 1447575568 →

In 2024, $123 was disclosed to this physician across 6 transactions by pharmaceutical or medical-device companies.

Mostly entertainment ($123).

Largest single payer: GlaxoSmithKline, LLC. ($87).

Itemized records on CMS Open Payments →

Melanie Arora, MD

16167 Siskiyou Rd, Suite a

Apple Valley, CA 92307 · (760) 242-2146

License: A145131 (CA)

NPI 1578889283 →

In 2024, $173 was disclosed to this physician across 8 transactions by pharmaceutical or medical-device companies.

Mostly entertainment ($173).

Largest single payer: Bayer HealthCare Pharmaceuticals Inc. ($75).

Itemized records on CMS Open Payments →

Fikret Atamdede, MD

23600 Telo Ave, Suite 250

Torrance, CA 90505 · (310) 375-8446

License: G56999 (CA)

NPI 1578502480 →

In 2024, $1,386 was disclosed to this physician across 40 transactions by pharmaceutical or medical-device companies.

Mostly entertainment ($1,386).

Largest single payer: GlaxoSmithKline, LLC. ($240).

Itemized records on CMS Open Payments →

Samuel Cyril Ballon, MD

815 Pollard Rd, Attn: Cgops

Los Gatos, CA 95032 · (408) 378-6545

License: G21751 (CA)

NPI 1760408173 →

Syem Barakzai, MD

1211 Coolidge Blvd Ste 401

Lafayette, LA 70503 · (337) 769-9860

License: 345354 (LA)

NPI 1306342316 →

Alice Primrose Barr, MD

4860 Y St Ste 2500

Sacramento, CA 95817 · (916) 734-6978

License: 179650 (CA)

NPI 1982109286 →

In 2024, $34 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.

Mostly entertainment ($34).

Largest single payer: AstraZeneca Pharmaceuticals LP ($34).

Itemized records on CMS Open Payments →

Allison Barrie, MD

1100 9th Ave

Seattle, WA 98101 · (206) 515-5811

License: MD61071931 (WA)

NPI 1194026690 →

In 2023, $21 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.

Mostly entertainment ($21).

Itemized records on CMS Open Payments →

Lisa Michelle Bean, MD

223 W Cole Blvd

Calexico, CA 92231 · (760) 357-2020

License: A125372 (CA)

NPI 1760782817 →

In 2024, $4,788 was disclosed to this physician across 12 transactions by pharmaceutical or medical-device companies.

Mostly gifts ($4,500) and entertainment ($288).

Largest single payer: Intuitive Surgical, Inc. ($4,692).

Itemized records on CMS Open Payments →

Tiffany Lee Beck, MD

351 Hospital Rd Ste 507

Newport Beach, CA 92663 · (949) 642-1361

License: 148151 (CA)

NPI 1619144151 →

In 2024, $327 was disclosed to this physician across 5 transactions by pharmaceutical or medical-device companies.

Mostly entertainment ($327).

Largest single payer: Medtronic, Inc. ($172).

Itemized records on CMS Open Payments →

Michelle F Benoit, MD

1180 N Indian Canyon Dr Ste E218

Palm Springs, CA 92262 · (760) 323-6511

License: C192007 (CA)

NPI 1831224369 →

In 2024, $132 was disclosed to this physician across 5 transactions by pharmaceutical or medical-device companies.

Mostly entertainment ($132).

Largest single payer: AstraZeneca Pharmaceuticals LP ($52).

Itemized records on CMS Open Payments →

Joel M Berchin, MD

8851 Center Dr, Ste 210

La Mesa, CA 91942 · (619) 463-7775

License: G65656 (CA)

NPI 1598861171 →

Jonathan Samuel Berek, MD

300 Pasteur Dr

Stanford, CA 94305 · (650) 723-4000

License: G39480 (CA)

NPI 1164447900 →

In 2024, $5,555 was disclosed to this physician across 3 transactions by pharmaceutical or medical-device companies.

Mostly charitable contributions ($5,490) and gifts ($65).

Largest single payer: Merck Sharp & Dohme LLC ($5,490).

Itemized records on CMS Open Payments →

Michael L Berman, MD

Uci Medical Center, 101 the City Drive South

Orange, CA 92868 · (714) 456-2986

License: 000000G21754 (CA)

NPI 1295815371 →

In 2024, $34 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.

Mostly entertainment ($34).

Largest single payer: AstraZeneca Pharmaceuticals LP ($34).

Itemized records on CMS Open Payments →

Pratibha Sareen Binder, MD

200 W Arbor Dr

San Diego, CA 92103 · (858) 822-6275

License: A149945 (CA)

NPI 1174758031 →

In 2024, $8,003 was disclosed to this physician across 10 transactions by pharmaceutical or medical-device companies.

Mostly charitable contributions ($7,678) and entertainment ($325).

Largest single payer: AstraZeneca UK Limited ($4,920).

Itemized records on CMS Open Payments →

Kristin Leigh Bixel, MD

300 Pasteur Dr

Stanford, CA 94305 · (650) 723-4000

License: C197911 (CA)

NPI 1801023122 →

In 2024, $46 was disclosed to this physician across 2 transactions by pharmaceutical or medical-device companies.

Mostly entertainment ($46).

Largest single payer: Jazz Pharmaceuticals Inc. ($30).

Itemized records on CMS Open Payments →

Erin Alison Blake, MD

7130 N Millbrook Ave

Fresno, CA 93720 · (559) 326-1222

License: A148612 (CA)

NPI 1750624961 →

In 2024, $115 was disclosed to this physician across 5 transactions by pharmaceutical or medical-device companies.

Mostly entertainment ($115).

Largest single payer: GlaxoSmithKline, LLC. ($75).

Itemized records on CMS Open Payments →

Robert E. Bristow, MD

101 the City Drive South

Orange, CA 92868 · (410) 955-6700

License: G81369 (CA)

NPI 1427016039 →

In 2023, $84 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.

Mostly entertainment ($84).

Itemized records on CMS Open Payments →

Rebecca Ann Brooks, MD

4860 Y St Ste 2500

Sacramento, CA 95817 · (916) 734-6938

License: A113741 (CA)

NPI 1316155781 →

In 2024, $26,419 was disclosed to this physician across 22 transactions by pharmaceutical or medical-device companies.

Mostly consulting fees ($19,650) and charitable contributions ($4,455).

Largest single payer: GlaxoSmithKline, LLC. ($17,088).

Itemized records on CMS Open Payments →

John V Brown, MD

351 Hospital Rd, Suite 507

Newport Beach, CA 92663 · (949) 642-1361

License: G62749 (CA)

NPI 1659313633 →

In 2024, $69 was disclosed to this physician across 2 transactions by pharmaceutical or medical-device companies.

Mostly entertainment ($69).

Largest single payer: Intuitive Surgical, Inc. ($53).

Itemized records on CMS Open Payments →

Laurie Brunette, MD

1000 Fivepoint

Irvine, CA 92618 · (949) 671-4673

License: A114320 (CA)

NPI 1962639203 →

In 2024, $226 was disclosed to this physician across 3 transactions by pharmaceutical or medical-device companies.

Mostly entertainment ($226).

Largest single payer: Merck Sharp & Dohme LLC ($149).

Itemized records on CMS Open Payments →

Kevin Andrew Byrd, MD

801 Broadway N

Fargo, ND 58102 · (701) 234-2000

License: 11785 (SD)

NPI 1699725085 →

In 2024, $128 was disclosed to this physician across 6 transactions by pharmaceutical or medical-device companies.

Mostly entertainment ($128).

Largest single payer: GlaxoSmithKline, LLC. ($41).

Itemized records on CMS Open Payments →

Fabio Cappuccini, MD

101 the City Dr S, Building 29, Suite 501

Orange, CA 92868 · (714) 456-8000

License: A55863 (CA)

NPI 1255346763 →

In 2024, $20,407 was disclosed to this physician across 14 transactions by pharmaceutical or medical-device companies.

Mostly space rental or facility fees ($12,429) and consulting fees ($4,270).

Largest single payer: EISAI INC. ($13,694).

Itemized records on CMS Open Payments →

Ilana Cass, MD

One Medical Center Dr, Dartmouth Hitchcock - Ob/gyn

Lebanon, NH 03756 · (603) 653-9300

License: 19786 (NH)

NPI 1871576199 →

In 2023, $11 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.

Mostly gifts ($11).

Itemized records on CMS Open Payments →

Antonio Castaneda

1200 N State St

Los Angeles, CA 90033 · (323) 409-3061

License: 140595 (CA)

NPI 1447618376 →

In 2024, $147 was disclosed to this physician across 3 transactions by pharmaceutical or medical-device companies.

Mostly entertainment ($147).

Largest single payer: Virtual Incision Corporation ($114).

Itemized records on CMS Open Payments →

Raffi A Chalian, MD

1505 Wilson Ter Ste 150

Glendale, CA 91206 · (818) 484-8611

License: A122745 (CA)

NPI 1184670408 →

In 2024, $2,886 was disclosed to this physician across 8 transactions by pharmaceutical or medical-device companies.

Mostly charitable contributions ($2,640) and entertainment ($241).

Largest single payer: Baxter Healthcare ($2,834).

Itemized records on CMS Open Payments →

Stephanie Cham, MD

1825 4th St Fl 6

San Francisco, CA 94143 · (415) 353-9600

License: A180208 (CA)

NPI 1033597117 →

In 2024, $185 was disclosed to this physician across 3 transactions by pharmaceutical or medical-device companies.

Mostly entertainment ($185).

Largest single payer: GlaxoSmithKline, LLC. ($73).

Itemized records on CMS Open Payments →

John K Chan, MD

1100 Van Ness Ave Fl 4

San Francisco, CA 94109 · (415) 600-0930

License: A61661 (CA)

NPI 1962596551 →

In 2024, $336,565 was disclosed to this physician across 188 transactions by pharmaceutical or medical-device companies.

Mostly consulting fees ($242,723) and space rental or facility fees ($32,600).

Largest single payer: GlaxoSmithKline, LLC. ($93,341).

Itemized records on CMS Open Payments →

Uma Chandavarkar, MD

2800 L St Ste 300

Sacramento, CA 95816 · (916) 453-3300

License: 55322 (AZ)

NPI 1306038096 →

Lindsey Michelle Charo, MD

5030 Camino De La Siesta Ste 204

San Diego, CA 92108 · (858) 455-5524

License: A127097 (CA)

NPI 1316202849 →

In 2024, $313 was disclosed to this physician across 14 transactions by pharmaceutical or medical-device companies.

Mostly entertainment ($313).

Largest single payer: Merck Sharp & Dohme LLC ($82).

Itemized records on CMS Open Payments →

Dana Meredith Chase, MD

200 Ucla Medical Plz Ste 220

Los Angeles, CA 90095 · (310) 794-7274

License: A90068 (CA)

NPI 1396888947 →

In 2024, $213,005 was disclosed to this physician across 137 transactions by pharmaceutical or medical-device companies.

Mostly consulting fees ($126,067) and charitable contributions ($44,417).

Largest single payer: GlaxoSmithKline, LLC. ($105,604).

Itemized records on CMS Open Payments →

Alice Hue Chen, MD

782 N Medical Center Dr E Ste 211

Clovis, CA 93611 · (559) 451-3676

License: A197661 (CA)

NPI 1679929434 →

In 2024, $180 was disclosed to this physician across 3 transactions by pharmaceutical or medical-device companies.

Mostly entertainment ($180).

Largest single payer: AstraZeneca Pharmaceuticals LP ($157).

Itemized records on CMS Open Payments →

Hui Chen

4860 Y St, Suit 2500

Sacramento, CA 95817 · (916) 734-6978

License: A140916 (CA)

NPI 1891056677 →

In 2024, $265 was disclosed to this physician across 4 transactions by pharmaceutical or medical-device companies.

Mostly entertainment ($200) and gifts ($65).

Largest single payer: GlaxoSmithKline, LLC. ($186).

Itemized records on CMS Open Payments →

Lee-May Chen, MD

1600 Divisadero St

San Francisco, CA 94143 · (415) 353-9600

License: G83192 (CA)

NPI 1902861883 →

In 2024, $267 was disclosed to this physician across 5 transactions by pharmaceutical or medical-device companies.

Mostly entertainment ($138) and gifts ($129).

Largest single payer: GlaxoSmithKline, LLC. ($169).

Itemized records on CMS Open Payments →

Ming Teh Dwight Chen, MD

2490 Hospital Dr Ste 102

Mountain View, CA 94040 · (650) 934-3519

License: G64782 (CA)

NPI 1174543334 →

In 2024, $391 was disclosed to this physician across 3 transactions by pharmaceutical or medical-device companies.

Mostly entertainment ($217) and forgiven debt ($174).

Largest single payer: Intuitive Surgical, Inc. ($266).

Itemized records on CMS Open Payments →

Stephanie Chow, MD

300 Pasteur Dr

Stanford, CA 94305 · (650) 723-4000

License: A146463 (CA)

NPI 1356738744 →

In 2024, $286 was disclosed to this physician across 8 transactions by pharmaceutical or medical-device companies.

Mostly entertainment ($286).

Largest single payer: SK Life Science, Inc. ($157).

Itemized records on CMS Open Payments →

Katherine Jane Chung Chua, MD

4860 Y St Ste 2500

Sacramento, CA 95817 · (916) 734-6670

License: A177305 (CA)

NPI 1265922025 →

In 2024, $517 was disclosed to this physician across 5 transactions by pharmaceutical or medical-device companies.

Mostly meals and beverages ($343) and entertainment ($174).

Largest single payer: Intuitive Surgical, Inc. ($371).

Itemized records on CMS Open Payments →

Christopher P Chung, MD

301 W Huntington Dr Ste 400

Arcadia, CA 91007 · (626) 218-9840

License: A99062 (CA)

NPI 1346441144 →

In 2024, $433 was disclosed to this physician across 8 transactions by pharmaceutical or medical-device companies.

Mostly entertainment ($433).

Largest single payer: Caldera Medical, Inc ($288).

Itemized records on CMS Open Payments →

Giuseppe Ciaravino, MD

275 W MaCarthur Blvd

Oakland, CA 94611 · (510) 752-1000

License: A63443 (CA)

NPI 1992883771 →

In 2024, $88 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.

Mostly entertainment ($88).

Largest single payer: AbbVie Inc. ($88).

Itemized records on CMS Open Payments →

Marcia Amelia Ciccone, MD

1808 Verdugo Blvd Ste 413

Glendale, CA 91208 · (818) 658-5980

License: A122851 (CA)

NPI 1154672152 →

In 2024, $25 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.

Mostly entertainment ($25).

Largest single payer: Medtronic, Inc. ($25).

Itemized records on CMS Open Payments →

Joshua Garrett Cohen, MD

1000 Fivepoint

Irvine, CA 92618 · (949) 671-4673

License: A105857 (CA)

NPI 1467605766 →

In 2024, $683 was disclosed to this physician across 14 transactions by pharmaceutical or medical-device companies.

Mostly entertainment ($519) and gifts ($164).

Largest single payer: GlaxoSmithKline, LLC. ($204).

Itemized records on CMS Open Payments →

Amanda Compadre, MD

3181 Sw Sam Jackson Park Rd

Portland, OR 97239 · (503) 418-4500

License: MD226045 (OR)

NPI 1518461433 →

In 2024, $1,077 was disclosed to this physician across 4 transactions by pharmaceutical or medical-device companies.

Mostly gifts ($1,000) and entertainment ($77).

Largest single payer: Intuitive Surgical, Inc. ($1,058).

Itemized records on CMS Open Payments →

Maria Creselda De Leon, MD

23823 Valencia Blvd Ste 250

Santa Clarita, CA 91355 · (661) 799-1999

License: 01071053A (IN)

NPI 1073773073 →

In 2024, $35 was disclosed to this physician across 2 transactions by pharmaceutical or medical-device companies.

Mostly entertainment ($35).

Largest single payer: Lilly USA, LLC ($18).

Itemized records on CMS Open Payments →

Lejla Delic, MD

1100 Van Ness Ave Fl 4

San Francisco, CA 94109 · (415) 600-0930

License: A99537 (CA)

NPI 1063615185 →

In 2024, $49 was disclosed to this physician across 2 transactions by pharmaceutical or medical-device companies.

Mostly entertainment ($49).

Largest single payer: Myriad Genetic Laboratories, Inc. ($49).

Itemized records on CMS Open Payments →

Thanh Hue Dellinger, MD

1500 Duarte Rd, Mob 1002b

Duarte, CA 91010 · (626) 471-9353

License: A103331 (CA)

NPI 1073730891 →

In 2024, $123 was disclosed to this physician across 5 transactions by pharmaceutical or medical-device companies.

Mostly entertainment ($123).

Largest single payer: Tempus AI, Inc ($85).

Itemized records on CMS Open Payments →

Dennis Charles Desimone, DO

2202 N John B Dennis Hwy Ste 204

Kingsport, TN 37660 · (423) 245-1040

License: 5369 (TN)

NPI 1255599130 →

In 2024, $3,251 was disclosed to this physician across 47 transactions by pharmaceutical or medical-device companies.

Mostly meals and beverages ($1,880) and entertainment ($1,372).

Largest single payer: Intuitive Surgical, Inc. ($2,398).

Itemized records on CMS Open Payments →

Showing 50 of 228. 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 gynecologic 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: Gynecologic Oncology) · Last checked: 2026-04-20