NPPES file of Aug 9, 2026

Psychiatric/Mental Health Nurse Practitioner in California

4,226 NPPES records list psychiatric/mental health nurse practitioner with a practice address in California, 11 per 100,000 residents, the 45th 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 56 of 85.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 363LP0808X · method

Los Angeles has the most, 364

Psychiatric/Mental Health Nurse Practitioner records in California

  1. Megan O'Brien, PMHNPBerkeley, CA 947021750784559
  2. Michael O'Connor, PCNSSanta Cruz, CA 950601881736338
  3. Ryan O'DonellLos Alamitos, CA 907201124679253
  4. Jenna O'Donnell, PMHNPPasadena, CA 911051134769011
  5. Brandon O'Malley, PMHNP-BCMarina Del Rey, CA 902921952082646
  6. Aoife O'Sullivan, PMHNP-BCSan Diego, CA 921041497615413
  7. Chinyere Obakhume, PMHNPFontana, CA 923361134683816
  8. Irene Obanor, RNArcadia, CA 910061598020299
  9. Gladys Obeng, DNP, BSN, RN, PMHNP-Riverside, CA 925051356559553
  10. Angela ObiWest Hollywood, CA 900461235875980
  11. Justina Obi, NPSan Bernardino, CA 924151801493671
  12. Rachael ObiFontana, CA 923361760940001
  13. Uzoma Obi, NPCarson, CA 907451730952185
  14. Kosi ObialorVan Nuys, CA 914111336861632
  15. Paris Obike, NPMoreno Valley, CA 925551326634999
  16. Sarah Obike, NPRiverside, CA 925031235504952
  17. Ndubuisi Obioha, NPCarson, CA 907461699410746
  18. Chukwudi ObueLawndale, CA 902601477189223
  19. Elaine Ocampo, NURSE PRACTITIONERSan Diego, CA 921051063856805
  20. Uche OchiaNorwalk, CA 906501831915065
  21. Rosedana OctaveHayward, CA 945441407693815
  22. Eucharia Oduoza, MSNTorrance, CA 905051407183825
  23. Taiwo Odutola, OWNERCarson, CA 907451467178947
  24. Ken Oerding, N.P.Temecula, CA 925921306379359
  25. Jill Oestreicher, N.P.Long Beach, CA 908061508825761
  26. Samnang Oeur, NPSan Francisco, CA 941161518490028
  27. Ogochukwu OffiaeliBurlingame, CA 940101992580492
  28. Yvonne Offill, PMHNP-BCUpland, CA 917841689316325
  29. Angela Ofoegbu, DNPCerritos, CA 907031457828097
  30. Knarik Oganesyan, FNP PMHNPBurbank, CA 915061477191070
  31. Future OgbeborGardena, CA 902481245961663
  32. Chidinma OgbeideSanta Clarita, CA 913901083500920
  33. Victor Ogbeide, PMHNP-BCSylmar, CA 913421013384494
  34. Osamamwode Ogbeiwi, NPBrea, CA 928211609047166
  35. Scholastica Ogomaka, PMHNPCypress, CA 906301942917596
  36. Chika Oguagha, PMHNPFontana, CA 923361316546930
  37. Patricia OgudeOntario, CA 917611407318355
  38. Anita OguhPatton, CA 923691730895673
  39. Oluwatoyin Ogunjale, DNPRancho Cucamonga, CA 917301326605148
  40. Adenike Ogunleye, NPFairfield, CA 956871740813062
  41. Petra Maria Ogwurumba, PMHNP-BCGreenfield, CA 939271871337956
  42. David Oh, PMHNP - BCIrvine, CA 926041730764192
  43. Jeeeun Oh, DNP-PMHNPFullerton, CA 928311124796057
  44. Jungyeol Oh, PH.D.Commerce, CA 900221447414552
  45. Funmilola OjeleyeTorrance, CA 905051790407492
  46. Victoria Ojiako-Ita, NPSan Pablo, CA 948061508403551
  47. Wilson OjoLos Angeles, CA 900611609730670
  48. Bamidele Ojo-FatiSacramento, CA 958341619635893
  49. Phillip Oka Jr, PMHNP-BCOrange, CA 928661114813029
  50. Esther Okafor, FNP/PMHNP/DNPTorrance, CA 905051104073865

Source: CMS NPPES, primary taxonomy 363LP0808X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 45 of 51 per resident

  1. Missouri12
  2. Illinois12
  3. Wisconsin12
  4. California11
  5. Alabama11
  6. West Virginia10
  7. 50 states and D.C.17

Source: CMS NPPES, primary taxonomy 363LP0808X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

61.9% of these records appear in a Medicare file, against 70.0% 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. California61.9%
  2. United States70.0%

Psychiatric/Mental Health Nurse Practitioner records in California, measured

  • In a Medicare file2,614 of 4,226 · 61.9% here, 70.0% nationally
  • In the CMS Doctors and Clinicians file1,965 · 46.5% here, 56.0% nationally
  • Not updated in five years or more688 · 16.3% here, 21.8% nationally
  • Median graduation year2021 · the 1,965 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 363LP0808X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

4,226 NPPES records list psychiatric/mental health nurse practitioner (363LP0808X) as their primary taxonomy with a practice address in California: 11 per 100,000 residents against 17 nationally (50 states and D.C.). Los Angeles has 364 of them (9%).

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. Texas4,227
  2. New York4,129
  3. Florida4,715
  4. Ohio2,498

States with a similar rate per 100,000

  1. Alabama10.5
  2. West Virginia10.4
  3. Hawaii10.1
  4. South Carolina10.0

The largest states

  1. Florida4,715
  2. Texas4,227
  3. New York4,129
  4. Ohio2,498
  5. Maryland2,373

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.