NPPES file of Aug 9, 2026

Nuclear Medicine Physician in California

150 NPPES records list nuclear medicine physician with a practice address in California, 0.4 per 100,000 residents, the 8th highest rate of 42. Los Angeles and Sacramento have the most; each record links to the provider's NPI and the California license search. Page 3 of 3.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207U00000X · 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, 23

  1. Los Angeles23
  2. Sacramento15
  3. San Diego12
  4. San Francisco6
  5. Santa Clara5

Nuclear Medicine Physician records in California

  1. James Pritchard, M.D.Beverly Hills, CA 902111306888920
  2. Merlin Puterbaugh, M.D.Los Altos, CA 940221598104101
  3. Amir Rad, M.DSan Diego, CA 921031710262472
  4. Lalitha Ramanna, MDTorrance, CA 905031396727889
  5. Mohan Ramaswamy, MDWalnut Creek, CA 945961356429427
  6. Guy Ravad, MDSan Diego, CA 921201447319017
  7. Narendra Raval, MDBaldwin Park, CA 917061083762892
  8. Rick Rieser, M.DLos Angeles, CA 900571740735737
  9. Daniel Rimkus, M.D.Santa Barbara, CA 931051447343256
  10. Peter Robbins, M.D.Redding, CA 960011245389113
  11. Ali Salavati, M.D., M.P.H.Santa Monica, CA 904041669868857
  12. Christiaan Schiepers, MDLos Angeles, CA 900951073549838
  13. Meike Schipper, M.D.Palo Alto, CA 943051497939458
  14. John Seder, MDVentura, CA 930031679506018
  15. George Segall, M.D.Palo Alto, CA 943041710994082
  16. Purnima Shah, M.D.Van Nuys, CA 914051891735122
  17. David Shames, M.D.Berkeley, CA 947051629441563
  18. Mythri Shankar, M.D.Lancaster, CA 935341083895262
  19. Philip Shie, D.O.Fontana, CA 923351396765400
  20. Daniel Silverman, MDLos Angeles, CA 900951295761880
  21. Surendra Sood, M.D.Modesto, CA 953551336197300
  22. Robbie Sooriash, M.D.Valencia, CA 913551619389665
  23. Michael Starsiak, MDSan Diego, CA 921341740216738
  24. John Stauffer, MDVentura, CA 930031639391048
  25. Ramona Tabib, M.D.Beverly Hills, CA 902111265675615
  26. Edward Tam, M.D.Redding, CA 960011073915831
  27. Susan Tang, MDSan Francisco, CA 941151003994609
  28. Rajiv Tangri, D.O.Irvine, CA 926181972659308
  29. Alison Taur, MDFontana, CA 923351093886988
  30. Louise Thomson, MDLos Angeles, CA 900481487780813
  31. Simon Trubek, MDSacramento, CA 958161366446890
  32. Hung Tsang, MDSouth San Francisco, CA 940801407934995
  33. Powen Tu, MD PHDSan Jose, CA 951191891131421
  34. Jon Umlauf, MDSan Diego, CA 921201356332373
  35. Gelareh VahdatiIrvine, CA 926041871005876
  36. Leonard Valentino, M.D.Redwood City, CA 940621689610537
  37. Penny Vandestreek, D.O.Roseville, CA 956611164463402
  38. Craig Weiner, M.D.Sacramento, CA 958191568552834
  39. David Winsor, M.D.Los Angeles, CA 900571710092580
  40. Martin Winston, M.D.Carmichael, CA 956081649360918
  41. Ching Wong, MDSacramento, CA 958151396705356
  42. Dafang Wu, MDSacramento, CA 958161871553834
  43. Surekha Yadav, MDSan Francisco, CA 941431982491965
  44. Archie Yee, MDOakland, CA 946111649358417
  45. Randy Yeh, M.D.Sylmar, CA 913421659514719
  46. Edwin Yeo, MDFontana, CA 923351982752820
  47. Juanita Yun, MDWalnut Creek, CA 945961609954783
  48. Kousha Zarnegar, M.D.San Diego, CA 921031326082876
  49. Ray Zhang, MD, PHDStanford, CA 943051417418856
  50. Xueren Zhao, MDSan Diego, CA 921031417180290

Source: CMS NPPES, primary taxonomy 207U00000X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 8 of 42 per resident

  1. South Dakota0.4
  2. Missouri0.4
  3. Hawaii0.4
  4. California0.4
  5. Massachusetts0.4
  6. Washington0.3
  7. 50 states and D.C.0.2

Source: CMS NPPES, primary taxonomy 207U00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

59.3% of these records appear in a Medicare file, against 58.1% 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. California59.3%
  2. United States58.1%

Nuclear Medicine Physician records in California, measured

  • In a Medicare file89 of 150 · 59.3% here, 58.1% nationally
  • In the CMS Doctors and Clinicians file72 · 48.0% here, 49.1% nationally
  • Not updated in five years or more101 · 67.3% here, 57.3% nationally
  • Median graduation year1999 · the 72 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207U00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

150 NPPES records list nuclear medicine physician (207U00000X) as their primary taxonomy with a practice address in California: 0.4 per 100,000 residents against 0.2 nationally (50 states and D.C.). Los Angeles has 23 of them (15%).

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 York100
  2. Texas51
  3. Pennsylvania35
  4. Florida34

States with a similar rate per 100,000

  1. Massachusetts0.4
  2. Missouri0.4
  3. Maryland0.4
  4. Washington0.3

The largest states

  1. New York100
  2. Texas51
  3. Pennsylvania35
  4. Florida34
  5. Maryland27

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.