NPPES file of Aug 9, 2026

Clinical Genetics (M.D.) Physician in California

151 NPPES records list clinical genetics (m.d.) physician with a practice address in California, 0.4 per 100,000 residents, the 14th highest rate of 49. Los Angeles and San Francisco have the most; each record links to the provider's NPI and the California license search. Page 2 of 4.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207SG0201X · 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, 28

  1. Los Angeles28
  2. San Francisco18
  3. Orange13
  4. Palo Alto13
  5. Sacramento13

Clinical Genetics (M.D.) Physician records in California

  1. John Jay Gargus, MDOrange, CA 928681750461802
  2. James Goldberg, M.DSan Francisco, CA 941091699796045
  3. Natalia Gomez-Ospina, M.D.Palo Alto, CA 943041114294477
  4. Ora Gordon, M.D.Burbank, CA 915051508827718
  5. John Graham, M.D.Los Angeles, CA 900481578590196
  6. Stacy Gray, M.D.Duarte, CA 910101184736225
  7. Arthur Grix, MDRoseville, CA 956611942388616
  8. Stephen Gruber, M.D.Duarte, CA 910101932280377
  9. Kristin Herman, M.D.Sacramento, CA 958171407878796
  10. Fuki Hisama, MDOrange, CA 928681780666420
  11. Trevor Hoffman, M.D., PH.D.Anaheim, CA 928011447454871
  12. Yue Huang, PHD, MBBSSan Diego, CA 921231801316526
  13. Louanne HudginsPalo Alto, CA 943051609949627
  14. Joanne Jeter, M.D.Duarte, CA 910101871568444
  15. Adam Jonas, M.D.Torrance, CA 905021679536619
  16. Marilyn Jones, M.D.San Diego, CA 921231295806040
  17. Maries Joseph, MDMadera, CA 936361891804076
  18. Soghra Jougheh Doust, MDSan Francisco, CA 941431518719806
  19. Daniella Kamara, LCGCLos Angeles, CA 900951609226992
  20. Catherine Karimov, M.D.Los Angeles, CA 900271952424079
  21. Norihiko Kawamata, M.D.West Hollywood, CA 900481730468471
  22. Virginia Kimonis, MDOrange, CA 928681912964925
  23. Ophir Klein, M.D.,PH.DWest Hollywood, CA 900481215121132
  24. Joyce Kobori, MDSan Jose, CA 951191518039353
  25. Shirley Korula, M.D.Los Angeles, CA 900321568449122
  26. Deborah Krakow, MDSanta Monica, CA 904041689657579
  27. Akash Kumar, M.D., PH.D.Palo Alto, CA 943041043674153
  28. Albert La Spada, MDOrange, CA 928681487744330
  29. Ariel Lee, DOSacramento, CA 958151093249872
  30. Benson Lee, D.O.Bakersfield, CA 933061285044008
  31. Chung Lee, M.D.Palo Alto, CA 943041497045298
  32. Fred Levine, M.D., PH.D.San Diego, CA 921231154493476
  33. Ruth Lin, M.D.San Jose, CA 951281780812602
  34. Mark Lipson, MDSacramento, CA 958251811075567
  35. Nicola Longo, MDLos Angeles, CA 900951275612749
  36. Alan Lu, MDFresno, CA 937011295298909
  37. John Mann, M.D.Fresno, CA 937201568656254
  38. Rebecca Mardach, MDSan Diego, CA 921231457330607
  39. Alvaro Martin Rodriguez, MDSan Diego, CA 921231194561308
  40. Julian Martinez, M.D.Los Angeles, CA 900951952324022
  41. Dena Matalon, M.D.Palo Alto, CA 943041134567696
  42. Kevin McDonnell, M.D.Duarte, CA 910101932343316
  43. Lynn McLean, M.D.Loma Linda, CA 923541801823547
  44. Iris Jolly Joanna Mencias, M.D.Torrance, CA 905031811284219
  45. Bryce Mendelsohn, M.D.Oakland, CA 946111497071963
  46. Claudia Mikail, MD, MPHWoodland Hills, CA 913641346228103
  47. Billur Moghaddam, M.D.Sacramento, CA 958171326209461
  48. Jose Morales Corado, MDLos Angeles, CA 900951114377199
  49. Eric Muller, M.D., PH.D.Oakland, CA 946111659559516
  50. Thomas Musci, M.D.San Francisco, CA 941091487676169

Source: CMS NPPES, primary taxonomy 207SG0201X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 14 of 49 per resident

  1. Hawaii0.4
  2. South Carolina0.4
  3. Michigan0.4
  4. California0.4
  5. New York0.4
  6. Pennsylvania0.4
  7. 50 states and D.C.0.3

Source: CMS NPPES, primary taxonomy 207SG0201X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

55.0% of these records appear in a Medicare file, against 62.3% 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. California55.0%
  2. United States62.3%

Clinical Genetics (M.D.) Physician records in California, measured

  • In a Medicare file83 of 151 · 55.0% here, 62.3% nationally
  • In the CMS Doctors and Clinicians file58 · 38.4% here, 47.7% nationally
  • Not updated in five years or more73 · 48.3% here, 51.3% nationally
  • Median graduation year1999 · the 58 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207SG0201X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

151 NPPES records list clinical genetics (m.d.) physician (207SG0201X) as their primary taxonomy with a practice address in California: 0.4 per 100,000 residents against 0.3 nationally (50 states and D.C.). Los Angeles has 28 of them (19%).

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 York73
  2. Texas59
  3. Massachusetts56
  4. Ohio55

States with a similar rate per 100,000

  1. Michigan0.4
  2. South Carolina0.4
  3. Pennsylvania0.4
  4. Washington0.4

The largest states

  1. New York73
  2. Texas59
  3. Massachusetts56
  4. Ohio55
  5. Florida49

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.