NPPES file of Aug 9, 2026

Hematology & Oncology Physician in California

1,583 NPPES records list hematology & oncology physician with a practice address in California, 4.1 per 100,000 residents, the 19th highest rate of 51. Los Angeles and San Diego have the most; each record links to the provider's NPI and the California license search. Page 23 of 32.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207RH0003X · method

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Los Angeles has the most, 153

  1. Los Angeles153
  2. San Diego88
  3. Sacramento77
  4. San Francisco64
  5. Orange63

Hematology & Oncology Physician records in California

  1. Warren Paroly, MDOceanside, CA 920561306981527
  2. Kooros Parsa, MDOxnard, CA 930301629017801
  3. Hooman Parsi, M.D.Valencia, CA 913551750689378
  4. Rabia Parveez, MDFresno, CA 937201922055680
  5. Joseph Pascuzzo, DOFresno, CA 937201538244314
  6. Bimal Patel, M.D.Antioch, CA 945311841298221
  7. Kanishka PatelSacramento, CA 958171053871947
  8. Krushangi Patel, M.D.Long Beach, CA 908131912266339
  9. Nikhil PatelSacramento, CA 958171346864428
  10. Ronak Patel, M.D.Walnut Creek, CA 945981255872602
  11. Sandip Patel, M.D.San Diego, CA 921031245481381
  12. Sunil Patel, MDFontana, CA 923351184791196
  13. Bhavana Pathak, M.D.Orange, CA 928681154610319
  14. Neha Patil, MDLancaster, CA 935341568874790
  15. Sadanand Patil, M.D.Oxnard, CA 930301497713267
  16. John Patresan, MDMartinez, CA 945531023644978
  17. Vinod Patwardhan, M.DMontclair, CA 917631114922606
  18. Shira Paul, M.D.San Diego, CA 921341588057343
  19. Dean Peng, MDSan Diego, CA 921201235298811
  20. Sharon Peng, M.D.Roseville, CA 956611902156557
  21. Warner Peng, MDOxnard, CA 930301154584704
  22. Christopher Perkins, MDFresno, CA 937101396820189
  23. Justin Persico, M.D.San Diego, CA 921031558546663
  24. David Pfister, M.D.Oakland, CA 946091689649212
  25. Andrew Pham, MDWhittier, CA 906021538588868
  26. See-Chun Phan, M.D.Stanford, CA 943051073651741
  27. Vu Phan, MDLos Alamitos, CA 907201831247667
  28. Sunny Philip, M.D.Lodi, CA 952421578852109
  29. Nabil Phillips, M.D.Santa Ana, CA 927051043276405
  30. Tanyanika Phillips, MDLancaster, CA 935341003952151
  31. Hardeep Phull, MDEscondido, CA 920291306103510
  32. Sorbarikor Piawah, M.D.Novato, CA 949451528471927
  33. Richard Pietras, MDLos Angeles, CA 900951841210044
  34. Prasad Pillai, MDAntioch, CA 945311023174380
  35. Lauren Pinter-Brown, MDLos Angeles, CA 900951669492252
  36. Lawrence Piro, M.D.Los Angeles, CA 900251124131446
  37. Ina Planas, M.D.Fountain Valley, CA 927081871583575
  38. Rahul Dev Polineni, M.DCorona, CA 928821235375155
  39. Yao Yao Pollock, MDSanta Rosa, CA 954031154692549
  40. Monty Polonsky, M.D.Arcadia, CA 910071205926565
  41. J PomeroySoquel, CA 950731396885034
  42. Ryan Ponec, MDTarzana, CA 913561013335199
  43. Kenneth PoonSan Leandro, CA 945771366768541
  44. Maria Popescu, MDRancho Mirage, CA 922701750342499
  45. Pallvi Popli, M.D.Victorville, CA 923951467860221
  46. Sovijja Pou, MDSacramento, CA 958171093454589
  47. Pete Pow-AnpongkulFountain Valley, CA 927081831586387
  48. Jerry Powell, M.D.Sacramento, CA 958171780666198
  49. Leland Powell, MDSylmar, CA 913421215028725
  50. Diane Prager, MDTorrance, CA 905051003883562

Source: CMS NPPES, primary taxonomy 207RH0003X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 19 of 51 per resident

  1. Ohio4.4
  2. New Jersey4.3
  3. Louisiana4.1
  4. California4.1
  5. Nebraska4.0
  6. Virginia4.0
  7. 50 states and D.C.4.2

Source: CMS NPPES, primary taxonomy 207RH0003X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

83.1% of these records appear in a Medicare file, against 82.9% nationally

A Medicare file here is Part D prescribing (2024), a MIPS score (2023), an Open Payments record (2024) or Medicare group billing (CMS Doctors and Clinicians). A record outside them may still see patients: these files cover Medicare only.

  1. California83.1%
  2. United States82.9%

Hematology & Oncology Physician records in California, measured

  • In a Medicare file1,315 of 1,583 · 83.1% here, 82.9% nationally
  • In the CMS Doctors and Clinicians file1,126 · 71.1% here, 71.3% nationally
  • Not updated in five years or more917 · 57.9% here, 54.3% nationally
  • Median graduation year2003 · the 1,124 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207RH0003X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

1,583 NPPES records list hematology & oncology physician (207RH0003X) as their primary taxonomy with a practice address in California: 4.1 per 100,000 residents against 4.2 nationally (50 states and D.C.). Los Angeles has 153 of them (10%).

A record is a registration a provider made and keeps up to date: it shows neither that the provider is licensed nor that they still practice there. The state's own license search is the check.

States with a similar number

  1. New York1,163
  2. Texas922
  3. Florida818
  4. Pennsylvania784

States with a similar rate per 100,000

  1. Nebraska4.0
  2. Louisiana4.1
  3. Virginia4.0
  4. North Carolina4.0

The largest states

  1. New York1,163
  2. Texas922
  3. Florida818
  4. Pennsylvania784
  5. Illinois666

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy; 2023 Census population estimates. A registry record is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.