NPPES file of Aug 9, 2026

Addiction Psychiatry Physician in California

73 NPPES records list addiction psychiatry physician with a practice address in California, 0.2 per 100,000 residents, the 20th highest rate of 48. Los Angeles and La Jolla have the most; each record links to the provider's NPI and the California license search. Page 1 of 2.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 2084P0802X · 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, 5

  1. Los Angeles5
  2. La Jolla4
  3. Sacramento4
  4. San Diego4
  5. Santa Monica4

Addiction Psychiatry Physician records in California

  1. Steven Allen, M.D.Sylmar, CA 913421700144557
  2. Eva Altobelli, MDSanta Monica, CA 904041790990620
  3. Robert Anthenelli, M.D.San Diego, CA 921031225139306
  4. James Armontrout, MDPalo Alto, CA 943041215202403
  5. Sean Barlow, M.D.Palm Desert, CA 922111386653178
  6. Ori-Michael Benhamou, M.D.Mountain View, CA 940401194169052
  7. Adam Berns, MDWoodside, CA 940621669835047
  8. Allison Botwin, M.D.Rancho Mirage, CA 922701013969161
  9. William Brostoff, MDVallejo, CA 945891467530352
  10. Matthew Campbell, M.D.Sacramento, CA 958161841645223
  11. Timmen Cermak, M.D.Mill Valley, CA 949411235341330
  12. Binna Chahal, M.D.Santa Ana, CA 927011356436240
  13. Amardeep ChharanApple Valley, CA 923071205452299
  14. Stephanie ChiaoMountain View, CA 940401780071498
  15. Kathy Coffman, MD, FAPMWest Hollywood, CA 900691649364340
  16. Dale Dallas, MDFelton, CA 950181134207210
  17. Ernani Dangelo, M.D.Downey, CA 902421881723864
  18. Belinda Daniel, M.D.San Diego, CA 921341760913446
  19. Smita Das, MD, PHD, MPHPalo Alto, CA 943041114219870
  20. Milagros Demandante, MDLong Beach, CA 908041134342041
  21. Leandro Gatus, M.D.Los Angeles, CA 900041194808980
  22. Ariel Gavino, M.D.Anaheim, CA 928021659531994
  23. Ronald Gershman, M.D.Los Angeles, CA 900251699145045
  24. Daniel Gordon, M.D.San Luis Obispo, CA 934011144342601
  25. David Granovetter, MDSan Jose, CA 951191619053121
  26. William HarmonSanta Cruz, CA 950651194883314
  27. Timothy Hayes, M.D., M.P.H.Santa Monica, CA 904041194722264
  28. William Huang, M.D.Santa Monica, CA 904031295787166
  29. Steven Huerta, PMHNP-BCSan Diego, CA 921081558607440
  30. Muhammad Iqbal, MDNorth Hills, CA 913431609280262
  31. Alison Jacobi, MDAntioch, CA 945091821176983
  32. Maralee Joseph, MDVallejo, CA 945891922186766
  33. Vicki Kalira, M.D.Martinez, CA 945531124342647
  34. Mark Katz, M.D.Long Beach, CA 908221558478941
  35. Monika Koch, MDVallejo, CA 945891568534212
  36. Nishat Kulkarni, MDLa Jolla, CA 920931669034732
  37. Tracy Kuranaka, MDLa Jolla, CA 920371619930542
  38. Karen Larsen, MDPalo Alto, CA 943041326132796
  39. Martin Leamon, M.D.Sacramento, CA 958161629053145
  40. Stephen Leung, MDSan Francisco, CA 941211609305127
  41. Daniel Lewis, MDSacramento, CA 958251831278563
  42. James LuzanoLos Angeles, CA 900241851554802
  43. William Mains, M.D.Oakland, CA 946051477751741
  44. Ronald MarcusIndio, CA 922011558510776
  45. Carla Marienfeld, MDLa Jolla, CA 920371104007657
  46. Stephen Mohaupt, M.D.Norwalk, CA 906501982792990
  47. Edward Moore, M.D.Beverly Hills, CA 902101730269945
  48. Rayek Nafiz, M.D.Victorville, CA 923921427438571
  49. Daniel Notzon, M.D.San Rafael, CA 949031992949457
  50. Chinenye Okukpon, M.DSanta Clara, CA 950511134654775

Source: CMS NPPES, primary taxonomy 2084P0802X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 20 of 48 per resident

  1. Pennsylvania0.2
  2. Ohio0.2
  3. Arizona0.2
  4. California0.2
  5. New Jersey0.2
  6. Michigan0.2
  7. 50 states and D.C.0.2

Source: CMS NPPES, primary taxonomy 2084P0802X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

72.6% of these records appear in a Medicare file, against 67.8% 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. California72.6%
  2. United States67.8%

Addiction Psychiatry Physician records in California, measured

  • In a Medicare file53 of 73 · 72.6% here, 67.8% nationally
  • In the CMS Doctors and Clinicians file25 · 34.2% here, 38.0% nationally
  • Not updated in five years or more41 · 56.2% here, 50.5% nationally
  • Median graduation year2008 · the 25 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 2084P0802X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

73 NPPES records list addiction psychiatry physician (2084P0802X) as their primary taxonomy with a practice address in California: 0.2 per 100,000 residents against 0.2 nationally (50 states and D.C.). Los Angeles has 5 of them (7%).

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 York95
  2. Florida40
  3. Texas34
  4. Massachusetts33

States with a similar rate per 100,000

  1. New Jersey0.2
  2. Michigan0.2
  3. Indiana0.2
  4. Arizona0.2

The largest states

  1. New York95
  2. Florida40
  3. Texas34
  4. Massachusetts33
  5. Georgia31

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.