State Specialty Directory
Medical Oncology in CA
Federal CMS data for 93 medical oncology providers across CA. Includes Medicare utilization, Open Payments industry funding, and PECOS enrollment status.
93
Providers
Median industry payments
$7,414
93
Medical Oncology Providers
in CA
$7,414
Median Industry Payments
per provider (2018–2024)
1,675
Median Medicare Services
fee-for-service claims
How to read this directory: Providers are listed by Medicare service volume, which reflects only
Medicare fee-for-service patients (typically 65+). This does not represent total practice volume.
Industry payments span multiple years and payment types; disclosure alone establishes neither wrongdoing nor legality.
Medical Oncology includes multiple subspecialties with different practice patterns.
Learn more →
Showing top 50 of 93 providers, ranked by Medicare service volume. Search by city to narrow results.
Medical Oncology Providers — CA
NPPES · Open Payments · Medicare| Provider | City | Medicare Volume | Beneficiaries* | Top Procedure | Industry Payments | Payment Type | Coverage |
|---|---|---|---|---|---|---|---|
| GUPTA, SACHIN M.D. | Fresno | 520,716 | — | Iron infusion (Injectafer) | $120,089 (2018-2024) | — | Very High |
| GHANEM, BASSAM MD | Thousand Oaks | 212,150 | — | Filgrastim injection (Zarxio) for white blood cells | $6,907 (2018-2023) | — | Very High |
| SIGAL, DARREN MD | La Jolla | 191,647 | — | Paclitaxel protein-bound particle injection | $278,309 (2018-2024) | — | Very High |
| SHEN, JAMES M.D. | Arcadia | 140,083 | — | Darbepoetin injection (Aranesp) for anemia | $12,758 (2018-2024) | — | Very High |
| GREENWALD, DANIEL M.D. | Santa Barbara | 115,008 | — | Pembrolizumab injection (Keytruda) | $173,659 (2018-2024) | — | Very High |
| RAJABI, BABAK MD | Carmichael | 101,537 | — | Iron infusion (Injectafer) | $11,625 (2018-2024) | — | Very High |
| BHANGOO, MUNVEER MD | La Jolla | 100,420 | — | Pembrolizumab injection (Keytruda) | $719,794 (2018-2024) | — | Very High |
| BANERJEE, PUSHPENDU M.D. | La Jolla | 99,278 | — | Iron infusion (Injectafer) | $35,466 (2018-2024) | — | Very High |
| BAHADINI, BAHAREH MD | Thousand Oaks | 92,028 | — | Filgrastim injection (Zarxio) for white blood cells | $2,949 (2018-2024) | — | Very High |
| SANANI, SHAMEL MD | Mission Hills | 77,204 | — | Darbepoetin injection (Aranesp) for anemia | $3,495 (2018-2023) | — | Very High |
| GE, LI MD | Fresno | 67,087 | — | Paclitaxel chemotherapy injection | $15,918 (2018-2024) | — | Very High |
| MOSALLAEI-BENJAMIN, MAHSHID M.D. | Los Angeles | 53,667 | — | Iron infusion (Feraheme) | $211 (2018-2022) | — | Very High |
| DORAISWAMY, ACHALA MD | Murrieta | 53,423 | — | Iron infusion (Injectafer) | $14,988 (2018-2024) | — | Very High |
| SONG, SEUNG-YIL M.D. | San Diego | 52,756 | — | Filgrastim injection (Nivestym) for white blood cells | $25,168 (2018-2024) | — | Very High |
| SHEH, BRYANT MD | Stanford | 48,751 | — | Pembrolizumab injection (Keytruda) | $336 (2018-2024) | — | Very High |
| KASHYAP, ASHWIN M.D. | Thousand Oaks | 45,851 | — | Darbepoetin injection (Aranesp) for anemia | $4,870 (2018-2024) | — | Very High |
| SHAH, ARPEET M.D. | Castro Valley | 44,866 | — | Iron infusion (Injectafer) | $567 (2021-2024) | — | Very High |
| PUDUNAGAR SUBBIAH, SHANMUGA MD | Upland | 35,200 | — | Iron infusion (Injectafer) | $89,187 (2018-2024) | — | Very High |
| EL-HAJJAOUI, MICHELLE DO | West Covina | 34,022 | — | Iron infusion (Injectafer) | $3,888 (2018-2024) | — | Very High |
| BAWEJA, ABINAV MD | Pleasanton | 28,670 | — | Anti-nausea injection (fosaprepitant) | $2,495 (2020-2024) | — | Very High |
| PHILLIPS, TANYANIKA MD | Lancaster | 24,847 | — | Pembrolizumab injection (Keytruda) | $999 (2018-2022) | — | Very High |
| KIM, KEVIN M.D. | San Francisco | 21,528 | — | Pembrolizumab injection (Keytruda) | $169,279 (2018-2024) | — | Very High |
| SIDDIQUE, NAYYAR MD | Oceanside | 21,376 | — | Epoetin alfa injection (Retacrit) for anemia | $23,755 (2018-2024) | — | Very High |
| MARSHALL, NATALIE M.D. | Berkeley | 20,542 | — | Anti-nausea injection (aprepitant) | $4,966 (2018-2022) | — | Very High |
| COLOCCI, NATALIA MD | Palo Alto | 18,316 | — | Vedolizumab infusion (Entyvio) | $524 (2018-2024) | — | Very High |
| MELKONIAN, SUZY MD | Chatsworth | 15,805 | — | Iron infusion (Injectafer) | $19,334 (2018-2024) | — | Very High |
| BOLLIN, KATHRYN M.D. | San Diego | 15,634 | — | Pembrolizumab injection (Keytruda) | $8,163 (2018-2024) | — | Very High |
| KRAMER, ALAN MD | San Francisco | 12,081 | — | Denosumab injection (Prolia/Xgeva) | $9,581 (2018-2024) | — | Very High |
| KHAN, NAVEED MD | Glendora | 10,671 | — | Anti-nausea injection (aprepitant) | $2,891 (2018-2024) | — | Very High |
| CHAN, DAVID MD | Torrance | 9,586 | — | Injection, heparin sodium, (heparin lock flush), per 10 units | $3,965 (2018-2024) | — | Very High |
| COHEN, MELISSA M.D. | Simi Valley | 7,898 | — | Denosumab injection (Prolia/Xgeva) | $2,581 (2018-2024) | — | Very High |
| PENN, JULIET M.D. | Santa Barbara | 7,458 | — | Anti-nausea injection (fosaprepitant) | $3,620 (2018-2024) | — | Very High |
| WANG, WEI MD, PHD | San Francisco | 6,124 | — | Denosumab injection (Prolia/Xgeva) | $6,823 (2018-2024) | — | Very High |
| SMITH, GARRETT M.D. | San Francisco | 5,593 | — | Denosumab injection (Prolia/Xgeva) | $135 (2020-2024) | — | Very High |
| AFRASIABI, KAMBIZ M.D. | Anaheim | 2,989 | — | Hospital follow-up visit, high complexity | $3,359 (2018-2024) | — | Very High |
| DORMADY, SHANE M.D., PHD | Mountain View | 2,725 | — | Office visit, established patient, complex (40-54 min) | $2,363 (2018-2024) | — | Very High |
| SPILLANE, THOMAS MD | San Luis Obispo | 2,671 | — | Office visit, established patient (30-39 min) | $54,230 (2018-2024) | — | Very High |
| SANKHALA, KAMLESH M.D. | Beverly Hills | 2,627 | — | Dexamethasone injection (steroid) | $139,567 (2018-2024) | — | Very High |
| SINGHAL, SHIVA | Mountain View | 2,282 | — | Office visit, established patient, complex (40-54 min) | $698 (2018-2024) | — | Very High |
| NGUYEN, MINH MD | Newport Beach | 2,275 | — | Office visit, established patient (30-39 min) | $1,993 (2018-2024) | — | Very High |
| KLARNET, JAY MD | Oxnard | 2,152 | — | Office visit, established patient, complex (40-54 min) | $7,742 (2018-2024) | — | Very High |
| ROMERO, RAYMUNDO M.D. | Glendale | 2,148 | — | Hospital follow-up visit, moderate complexity | $35,252 (2018-2024) | — | Very High |
| ZHOU, MING MD | Modesto | 2,031 | — | Office visit, established patient (30-39 min) | $10,687 (2018-2024) | — | Very High |
| TCHEKMEDYIAN, NERSES M.D. | Irvine | 1,989 | — | Denosumab injection (Prolia/Xgeva) | $2,043 (2018-2021) | — | Very High |
| TIPTON, SHANE PA-C | Stanford | 1,880 | — | Office visit, established patient (20-29 min) | $291 (2021-2024) | — | Very High |
| CHEN, THOMAS MD | San Jose | 1,729 | — | Office visit, established patient (30-39 min) | $162 (2021-2024) | — | Very High |
| MOHAMMADI, ORANUS MD | Fresno | 1,675 | — | Anti-nausea injection (Aloxi/palonosetron) | $5,902 (2019-2024) | — | Very High |
| RAJURKAR, SWAPNIL M.D. | Upland | 1,632 | — | Office visit, established patient (30-39 min) | $119,808 (2018-2024) | — | Very High |
| JIANG, FEN MD | Mission Viejo | 1,440 | — | Complete blood count (CBC) with differential | $22,013 (2018-2024) | — | Very High |
| PARK, DAVID M.D. | Fullerton | 1,424 | — | Office visit, established patient (30-39 min) | $75,973 (2018-2024) | — | Very High |
Note: Medical Oncology encompasses multiple subspecialties with different practice patterns.
Differences in payment amounts and procedure volumes may reflect subspecialty focus
rather than practice quality. Consider viewing individual profiles for full context.