NPPES file of Aug 9, 2026

Doctors and health care providers in Stockton, CA

9,522 individual NPPES records list a practice address in Stockton, 14th of 812 California cities. The largest group is behavior technician: 3,108, 33% of the city's records, against 18% across California. Page 125 of 191.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

Stockton in California

  • Rank in California14th of 812 cities by records
  • Share of the state1% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups41.9% of all records

Compared with California as a whole, Stockton has 8.9× the state's share of licensed psychiatric technician records and 0.51× its share of internal medicine physician records.

Providers in Stockton, alphabetically

  1. Kathryn OlsonBehavior Technician1346823093
  2. Cierra OlveraBehavior Technician1205511342
  3. Ofunneka Omekam, RDRegistered Dietitian1942941455
  4. Josephine OmlinMarriage & Family Therapist1467018044
  5. Afsaneh OmroniBehavior Technician1700698479
  6. Dat On, L.AC.Acupuncturist1154611358
  7. Amaiyah OnateBehavior Technician1568166403
  8. Nathan OnealCase Manager/Care Coordinator1750763082
  9. Makaila OneilBehavior Technician1528662335
  10. Olivia Onejeme, MS, RBTBehavior Technician1013406115
  11. Roanne Therese OngLicensed Vocational Nurse1245170042
  12. Triton OngStudent in an Organized Health Care Education/Training Program1912255266
  13. Brenda OnofreOther Technician1134781628
  14. Uchenna Onwuegbusi, MDFamily Medicine Physician1831710870
  15. Onyinye OnwuzulikeBehavior Technician1184182867
  16. Htun Oo, MDGeriatric Medicine (Internal Medicine) Physician1295852358
  17. Oluwaseyi OparaOccupational Therapist1982256152
  18. Teri Oppenheimer, PHARM.D.Pharmacist1619305240
  19. Lindsey OpseBehavior Technician1003669821
  20. Philla Or, CMPSSPeer Specialist1225989718
  21. Alvin Reynold OralloPharmacist1104111384
  22. Destiny OrandayDay Training/Habilitation Specialist1053201889
  23. Delia Ordaz, RNRegistered Nurse1003094418
  24. Favian Ordaz Trujillo, ASWSocial Worker1649036591
  25. Mageline Orden, MDFamily Medicine Physician1952489767
  26. Daniel Ordinola, PTAPhysical Therapy Assistant1073482618
  27. Rosario OrdonezCase Manager/Care Coordinator1730886284
  28. Jefry Ordonez SierraBehavior Technician1770442931
  29. Jorge OregelBehavior Technician1245014067
  30. Maria Oregel ValenciaMarriage & Family Therapist1700356961
  31. Delfina OrejelBehavior Technician1962007906
  32. Moises OrejelSocial Worker1639451404
  33. Jorge OrellanaBehavior Technician1811563992
  34. Manuel Orellana, MDInfectious Disease Physician1609811868
  35. Reyna OrellanaPharmacy Technician1144883653
  36. Jennifer Oren, BCBABehavior Analyst1750826772
  37. Teayana Orence-FierroBehavior Technician1831914852
  38. Cielo OrganezBehavior Technician1265296180
  39. Louis Orimo, D.D.S.General Practice Dentistry1992927800
  40. Joy Orji, PHAM DPharmacist1982903761
  41. Alicja Orkiszewska, MDAnesthesiology Physician1528146099
  42. Rachel OrmsbyBehavior Technician1326519653
  43. Nya OrnBehavior Technician1235913054
  44. Grecia OrnelasBehavior Technician1801461389
  45. Isabel OrnelasBehavior Technician1114499449
  46. Margarita Ornelas, FNP-CFamily Nurse Practitioner1538011523
  47. Maria Theresa Oronce, DMD INCDentist1972643799
  48. Sofia OrosBehavior Technician1861222358
  49. Alyssa OrozcoBehavior Technician1235989120
  50. Veronica Orozco GutierrezBehavior Technician1295494425

The largest California cities

  1. Los Angeles69,537
  2. San Diego52,937
  3. San Francisco38,143
  4. Sacramento33,083
  5. San Jose20,925

All of California →

How to read this directory

Stockton, California appears in the CMS National Plan and Provider Enumeration System with 9,522 registered healthcare providers spanning 25 or more distinct NUCC-taxonomy specialties. This count includes every individual clinician who has applied for an NPI and listed a practice address in Stockton - physicians, dentists, nurse practitioners, physician assistants, chiropractors, physical therapists, optometrists, psychologists, podiatrists, and every other credentialed provider type CMS tracks. It does not measure hospital beds, urgent-care capacity, or whether a given clinic is accepting new patients; it measures the pool of professionals with current NPI enrollment and a Stockton practice location on file. Every figure is drawn from the federal National Provider Identifier Registry (CMS NPPES) - more than 7 million providers, maintained since May 2007, with 2024 Medicare Part D data, and, according to CMS, can be searched, compared, and traced in our methodology.

The provider mix in Stockton is weighted toward Behavior Technician (3,108 clinicians, followed by Student in an Organized Health Care Education/Training Program with 464 and Mental Health Counselor with 421). That distribution reflects how NPPES records specialty: providers self-select a primary taxonomy code, so a family physician who also practices geriatrics will show up under whichever NUCC code they registered first. Relative to California's population, Stockton reports roughly 24.4 providers per 100,000 residents using the state-level denominator, which is a rough proxy rather than a precise access-to-care measurement; the true catchment area of any {cityName} clinician extends beyond the municipal boundary.

For Stockton patients, this directory is most useful as a starting shortlist. Important: PlainDoctor is a directory of publicly available CMS government data, not a review site, a ranking, or medical advice. NPPES data is self-reported and refreshed monthly; call the practice directly to confirm the provider is still there, accepts your insurance, and is taking new patients.

For informational purposes only; this directory is not medical advice and not a substitute for checking a license. See also: how to find a doctor and how to verify one.

Common questions

How many doctors are in Stockton, CA?

There are 9,522 registered healthcare providers in Stockton, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Stockton?

The most common specialties in Stockton are Behavior Technician, Student in an Organized Health Care Education/Training Program, Mental Health Counselor, Addiction (Substance Use Disorder) Counselor, Marriage & Family Therapist. Behavior Technician has the most providers with 3,108.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov). Records are self-reported registrations, not licenses.

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.