NPPES file of Aug 9, 2026

Anatomic Pathology & Clinical Pathology Physician in California

1,554 NPPES records list anatomic pathology & clinical pathology physician with a practice address in California, 4 per 100,000 residents, the 38th highest rate of 51. Los Angeles and Stanford have the most; each record links to the provider's NPI and the California license search. Page 26 of 32.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207ZP0102X · 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, 207

  1. Los Angeles207
  2. Stanford116
  3. San Diego106
  4. San Francisco78
  5. Sacramento46

Anatomic Pathology & Clinical Pathology Physician records in California

  1. Regina Patricia Singson, MDThousand Oaks, CA 913601609842863
  2. Aleli Siongco, MDMadera, CA 936381679648299
  3. Albert Siu, M.D.Modesto, CA 953551710955364
  4. Boris Skyar, M.D.Los Angeles, CA 900171588724389
  5. David Slater, MDClovis, CA 936111609817873
  6. Ronald Slaughter, M.D.Ukiah, CA 954821154375301
  7. Henry Slosser, MDPasadena, CA 911051881622470
  8. Sherie Smalley, M.D.West Sacramento, CA 956911962583450
  9. Chandra Smart, MDLos Angeles, CA 900951174787485
  10. Jennifer Smith, MDThousand Oaks, CA 913601427292986
  11. Sara Smith, M.D.Palm Springs, CA 922621578728168
  12. Faye Smith-Chakmakova, MDSouth Lake Tahoe, CA 961501831411933
  13. Megan Smith-Zagone, MDEureka, CA 955011508872714
  14. Roderick Snow, MDSan Francisco, CA 941331386717254
  15. Richard Snyder, MDWoodland Hills, CA 913671730237652
  16. Priti Soin, MDSacramento, CA 958171376004135
  17. Joanna Solarewicz, DOStanford, CA 943051548829955
  18. Joo Song, M.D.Duarte, CA 910101275856619
  19. Sophie Song, MDLos Angeles, CA 900951033144829
  20. Rebecca Sonu, MDSacramento, CA 958171144547340
  21. Christopher Soon, M.D.Stanford, CA 943051972838399
  22. Rebecca Spies, M.D.San Francisco, CA 941431275750341
  23. John Spinosa, MDLa Jolla, CA 920371265450027
  24. Steven Springer, CLS, PA(ASCP)San Diego, CA 921201912780107
  25. Sucheta Srivastava, M.D.Stanford, CA 943051144455403
  26. Hailee St. LouisSan Diego, CA 921031740869585
  27. Janet Stallman, MDNewport Beach, CA 926581245276476
  28. Don Stanton, M.D.Redding, CA 960011003971227
  29. Nicholas Stanzione, M.D.Los Angeles, CA 900951124480116
  30. Phillip Starshak, MDVisalia, CA 932921699708214
  31. Carla Stayboldt, M.D.San Diego, CA 921081427066836
  32. Julie Steele, M.D.La Jolla, CA 920371053384461
  33. Daniel Stefanko, MD, PHDLos Angeles, CA 900951447747050
  34. David Steiner, M.D., PH.D.Stanford, CA 943051821408923
  35. Adam StellingRancho Dominguez, CA 902201659639417
  36. John Stewart, MDSan Diego, CA 921231154385037
  37. Philip Strassle, MDPomona, CA 917671952320699
  38. Gary Strickland, M.D.Moreno Valley, CA 925551295107134
  39. Curtis Strong, M.D.Modesto, CA 953561134391345
  40. Sophie Stuart, MDLos Angeles, CA 900331598260275
  41. William Stull, MDBakersfield, CA 933061932124039
  42. Albert Su, M.D.San Diego, CA 921081811260169
  43. Ruijun Su, MDThousand Oaks, CA 913611922426451
  44. Eric Suba, M.D.South San Francisco, CA 940801437246956
  45. Stephen Suffin, M.D.West Hills, CA 913041609993088
  46. Yae Suh, MDSanta Ana, CA 927051073696415
  47. Peggy Sullivan, MDLos Angeles, CA 900951548424245
  48. Raymond Summers, MDSan Diego, CA 921201801837547
  49. Falguni Suthar, M.D.Thousand Oaks, CA 913601639183981
  50. Sylvia Anne Suzuki, M.D.Los Angeles, CA 900731437286374

Source: CMS NPPES, primary taxonomy 207ZP0102X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 38 of 51 per resident

  1. Virginia4.2
  2. Indiana4.2
  3. Maine4.1
  4. California4.0
  5. North Carolina4.0
  6. Montana4.0
  7. 50 states and D.C.4.8

Source: CMS NPPES, primary taxonomy 207ZP0102X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

65.1% of these records appear in a Medicare file, against 61.2% 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. California65.1%
  2. United States61.2%

Anatomic Pathology & Clinical Pathology Physician records in California, measured

  • In a Medicare file1,011 of 1,554 · 65.1% here, 61.2% nationally
  • In the CMS Doctors and Clinicians file892 · 57.4% here, 55.5% nationally
  • Not updated in five years or more943 · 60.7% here, 62.6% nationally
  • Median graduation year2003 · the 891 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207ZP0102X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

1,554 NPPES records list anatomic pathology & clinical pathology physician (207ZP0102X) as their primary taxonomy with a practice address in California: 4 per 100,000 residents against 4.8 nationally (50 states and D.C.). Los Angeles has 207 of them (13%).

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. Texas1,424
  2. New York972
  3. Florida966
  4. Illinois789

States with a similar rate per 100,000

  1. North Carolina4.0
  2. Montana4.0
  3. New Jersey3.9
  4. Alabama3.9

The largest states

  1. Texas1,424
  2. New York972
  3. Florida966
  4. Illinois789
  5. Pennsylvania716

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.