State Specialty Directory
Hematology & Oncology in CA
Federal CMS data for 495 hematology & oncology providers across CA. Includes Medicare utilization, Open Payments industry funding, and PECOS enrollment status.
495
Providers
Median industry payments
$8,484
495
Hematology & Oncology Providers
in CA
$8,484
Median Industry Payments
per provider (2018–2024)
3,527
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.
Hematology & Oncology includes multiple subspecialties with different practice patterns.
Learn more →
Showing top 50 of 495 providers, ranked by Medicare service volume. Search by city to narrow results.
Hematology & Oncology Providers — CA
NPPES · Open Payments · Medicare| Provider | City | Medicare Volume | Beneficiaries* | Top Procedure | Industry Payments | Payment Type | Coverage |
|---|---|---|---|---|---|---|---|
| DREISBACH, LUKE M.D. | Rancho Mirage | 824,645 | — | Iron infusion (Injectafer) | $19,741 (2018-2024) | — | Very High |
| RAO, RAVI MD | Fresno | 547,778 | — | Iron infusion (Injectafer) | $85,554 (2018-2024) | — | Very High |
| ESTRADA, DEXTER M.D. | Fresno | 546,939 | — | Iron infusion (Injectafer) | $8,125 (2018-2024) | — | Very High |
| HASEEB, ABDUL M.D. | Fresno | 488,407 | — | Iron infusion (Injectafer) | $141,904 (2018-2024) | — | Very High |
| NGUYEN, VINH-LINH MD | Bakersfield | 383,729 | — | Nivolumab injection (Opdivo) | $1,915 (2018-2024) | — | Very High |
| UCAR, KALUST M.D. | Glendale | 378,235 | — | Iron infusion (Injectafer) | $7,411 (2018-2023) | — | Very High |
| LAW, AMY M.D. | Rancho Mirage | 368,240 | — | Iron infusion (Injectafer) | $26,394 (2018-2024) | — | Very High |
| HAGER, STEVEN D.O. | Fresno | 320,590 | — | Darbepoetin injection (Aranesp) for anemia | $108,993 (2018-2024) | — | Very High |
| HACKETT, LEONARD M.D. | Fresno | 319,602 | — | Darbepoetin injection (Aranesp) for anemia | $10,355 (2018-2024) | — | Very High |
| TAI, EDMUND M.D. | Mountain View | 303,639 | — | Blood draw (venipuncture) | $152,956 (2018-2024) | — | Very High |
| JAWIEN, WILLIAM MD | Fresno | 298,823 | — | Iron infusion (Injectafer) | $10,899 (2018-2024) | — | Very High |
| SLOMOWITZ, SAMUEL M.D. | Los Angeles | 271,084 | — | Darbepoetin injection (Aranesp) for anemia | $681 (2018-2024) | — | Very High |
| DICARLO, BRIAN MD | San Luis Obispo | 250,151 | — | Pembrolizumab injection (Keytruda) | $4,739 (2018-2024) | — | Very High |
| NASSIR, YOURAM MD | Los Angeles | 246,348 | — | Oxaliplatin chemotherapy injection | $24,611 (2018-2024) | — | Very High |
| SHERMAN, MICHAEL M.D., PHD | Walnut Creek | 213,044 | — | Darbepoetin injection (Aranesp) for anemia | $61,526 (2018-2024) | — | Very High |
| NORTON, MARILYN MD | Chula Vista | 195,527 | — | Iron infusion (Injectafer) | $5,069 (2018-2024) | — | Very High |
| ZU, KAI M.D. | La Mesa | 193,945 | — | Darbepoetin injection (Aranesp) for anemia | $42,732 (2018-2024) | — | Very High |
| PARVEEZ, RABIA MD | Fresno | 193,501 | — | Iron infusion (Injectafer) | $26,371 (2018-2024) | — | Very High |
| CARMICHAEL, MARK MD | Rancho Mirage | 193,088 | — | Iron infusion (Injectafer) | $29,349 (2018-2024) | — | Very High |
| GUPTA, MUKUL M.D. | Santa Barbara | 188,007 | — | Iron infusion (Injectafer) | $11,464 (2018-2024) | — | Very High |
| JOHNSON, KENNETH MD | Chula Vista | 180,398 | — | Iron infusion (Injectafer) | $19,582 (2018-2024) | — | Very High |
| FISCHER, KATRINA | San Mateo | 173,053 | — | Iron infusion (Injectafer) | $1,958 (2018-2024) | — | Very High |
| RUBIN, NANCY D.O. | Monterey | 172,821 | — | Filgrastim-ayow biosimilar injection, 1 microgram | $686 (2018-2024) | — | Very High |
| BATRA, REEMA MD | La Mesa | 172,204 | — | Iron infusion (Injectafer) | $59,160 (2018-2024) | — | Very High |
| NEWMAN, GREGG M.D. | Santa Barbara | 169,120 | — | Darbepoetin injection (Aranesp) for anemia | $4,815 (2018-2024) | — | Very High |
| ASHOURI, SHAHRYAR M.D. | Westlake Village | 165,305 | — | Darbepoetin injection (Aranesp) for anemia | $7,519 (2018-2024) | — | Very High |
| LIMVARAPUSS, CHAINARONG MD | Vallejo | 162,151 | — | Iron infusion (Feraheme) | $58,644 (2018-2024) | — | Very High |
| ESHAGHIAN, SHAHROOZ M.D. | Los Angeles | 161,825 | — | Iron infusion (Injectafer) | $19,817 (2018-2024) | — | Very High |
| SHIRINIAN, MIHRAN M.D. | Glendale | 148,770 | — | Pembrolizumab injection (Keytruda) | $27,563 (2018-2024) | — | Very High |
| FISCHER, SEAN M.D. | Santa Monica | 146,120 | — | Pembrolizumab injection (Keytruda) | $3,848 (2018-2024) | — | Very High |
| KIM, DANIEL M.D. | South Pasadena | 144,868 | — | Iron infusion (Injectafer) | $1,558 (2018-2024) | — | Very High |
| SHARMA, SANJAI MD | Los Angeles | 139,314 | — | Iron infusion (Injectafer) | $25,458 (2018-2024) | — | Very High |
| LAMON, JOEL MD | San Diego | 137,768 | — | Darbepoetin injection (Aranesp) for anemia | $6,207 (2018-2024) | — | Very High |
| DHANUKA, PROMILA M.D. | Redding | 133,676 | — | Iron infusion (Feraheme) | $10,306 (2018-2024) | — | Very High |
| FRAKES, LAURIE M.D. | Encinitas | 132,971 | — | Darbepoetin injection (Aranesp) for anemia | $9,932 (2018-2024) | — | Very High |
| MEDIC, IGOR M.D. | La Mesa | 132,442 | — | Iron infusion (Injectafer) | $10,101 (2018-2024) | — | Very High |
| DREISBACH, PHILIP M.D. | Rancho Mirage | 126,796 | — | Iron infusion (Injectafer) | $19,918 (2018-2024) | — | Very High |
| PHILIP, SUNNY M.D. | Lodi | 123,262 | — | Iron infusion (Injectafer) | $22,405 (2018-2024) | — | Very High |
| OTIS, STAVROULA M.D. | Orange | 121,898 | — | Iron infusion (Injectafer) | $23,262 (2018-2024) | — | Very High |
| DAVIS, JULIAN MD | Santa Barbara | 118,920 | — | Nivolumab injection (Opdivo) | $5,104 (2018-2024) | — | Very High |
| WANG, JANET | Santa Cruz | 116,884 | — | Pembrolizumab injection (Keytruda) | $416 (2018-2024) | — | Very High |
| CHAMBERLAIN, ERIN M.D. | San Luis Obispo | 113,955 | — | Pembrolizumab injection (Keytruda) | $916 (2018-2024) | — | Very High |
| WU, LIHONG M.D. | Long Beach | 112,204 | — | Iron infusion (Injectafer) | $5,074 (2018-2024) | — | Very High |
| WONG, DERRICK M.D. | Mountain View | 111,358 | — | Pembrolizumab injection (Keytruda) | $517 (2018-2024) | — | Very High |
| FARJAMI, SASSAN M.D. | Long Beach | 111,054 | — | Iron infusion (Injectafer) | $44,016 (2018-2024) | — | Very High |
| KLEYNBERG, LEONID M.D. | Los Angeles | 109,520 | — | Filgrastim injection, 1 microgram | $13,681 (2018-2024) | — | Very High |
| CHANG, JOHNNY MD | Encino | 109,293 | — | Iron infusion (Feraheme) | $859,858 (2018-2024) | — | Very High |
| SAVEN, ALAN M.D. | La Jolla | 105,389 | — | Azacitidine chemotherapy injection | $437,278 (2018-2024) | — | Very High |
| CHEN, GIGI M.D. | Pleasant Hill | 104,768 | — | Pembrolizumab injection (Keytruda) | $101,333 (2018-2024) | — | Very High |
| WONG, GLENN DO | Santa Cruz | 103,970 | — | Nivolumab injection (Opdivo) | $806 (2018-2024) | — | Very High |
Note: Hematology & 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.