NPPES file of Aug 9, 2026

Doctors and health care providers in Ventura, CA

4,435 individual NPPES records list a practice address in Ventura, 45th of 812 California cities. The largest group is behavior technician: 543, 12% of the city's records, against 18% across California. Page 59 of 89.

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

The 8 largest groups in Ventura

Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.

Ventura in California

  • Rank in California45th of 812 cities by records
  • Share of the state0.5% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups27.1% of all records

Compared with California as a whole, Ventura has 4.3× the state's share of psychiatric/mental health registered nurse records and 0.68× its share of family nurse practitioner records.

Providers in Ventura, alphabetically

  1. Stephanie Novak, M.S.Behavior Analyst1396157418
  2. Margaret November, M.D.Psychiatry Physician1326265265
  3. Kylie Nufer, DPTPhysical Therapist1760901920
  4. Kristen Nugent, M.D.Family Medicine Physician1194889345
  5. John Nuhn, MDFamily Medicine Physician1144714973
  6. Ashley NunezBehavior Analyst1215861489
  7. Lauren NunezLicensed Vocational Nurse1700471000
  8. Monica NunezBehavior Technician1598567679
  9. Victoria NunezSocial Worker1215859665
  10. Alondra Nunez RuizBehavior Technician1255127809
  11. Jenessa Nye, MFT, PSY.DMarriage & Family Therapist1508081365
  12. Lindsey O'BrienBehavior Technician1972426377
  13. Maureen O'Brien, PHARMDPharmacist1366291528
  14. Carlos O'Bryan-Becerra, M.D.Family Medicine Physician1649422338
  15. Dennis O'Connell, LCSWClinical Social Worker1588789143
  16. Terrence O'Connor, M.A., MFTMarriage & Family Therapist1972523462
  17. Ronald O'Halloran, M.D.Anatomic Pathology Physician1841357647
  18. Robert O'Hollaren, M.D.Adult Reconstructive Orthopaedic Surgery Physician1801852710
  19. Kimberly O'NeillSchool Registered Nurse1407702210
  20. Kerry O'Reilly, PSYD, LMFTMarriage & Family Therapist1336355981
  21. Samantha O'RourkeOccupational Therapist1134582745
  22. Frances O'SullivanPsychiatry Physician1033233077
  23. Bridget OberleMarriage & Family Therapist1255223558
  24. Michelle OberleBehavior Analyst1184118721
  25. Isabella OchoaBehavior Technician1023800463
  26. Ruvit OchoaPeer Specialist1114862620
  27. Christina Odom, AMFTCounseling Psychologist1275358541
  28. Nathan Oh, D.O.Neurological Surgery Physician1992115778
  29. Kelli Oharrow, RNCardiac Rehabilitation Registered Nurse1184552085
  30. Carlee Ohea, IBCLCLactation Consultant (Registered Nurse)1285361626
  31. Isabel Ojeda-Cobaruvias, SLPASpeech-Language Assistant1477080885
  32. Lynne Okun, MFTMarriage & Family Therapist1063603041
  33. Sarah OlaguezDoula1225827256
  34. Gabrielle Olcott, PT, DPTPhysical Therapist1588369789
  35. Mariafe Olipani, RNCase Manager/Care Coordinator1124204532
  36. Christina OlivaresCase Manager/Care Coordinator1659847127
  37. Derek OliverPhysician Assistant1386153237
  38. Lindsay Oliver, DPTPhysical Therapist1043706781
  39. Sonia OliveraClinical Social Worker1578786380
  40. Corinna OlivieriMental Health Counselor1578056149
  41. Mariela OlmedoClinical Social Worker1538340369
  42. Adam OlsenAddiction (Substance Use Disorder) Counselor1053195719
  43. Breanna OlsenPharmacist1013458140
  44. Christina Olson, SLPASpeech-Language Assistant1114234168
  45. Hanna OlsonPhysical Therapist1265051213
  46. Kaitlin Olson, AMFTMarriage & Family Therapist1982212809
  47. Kristoff Olson, MD, MPHCardiovascular Disease Physician1891085148
  48. Mia OlsonMarriage & Family Therapist1619866670
  49. Oluwatumininu Oludemi, DOAddiction Medicine (Family Medicine) Physician1013656883
  50. Kristine Ondersma, RNFARegistered Nurse First Assistant1598268559

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

Ventura, California appears in the CMS National Plan and Provider Enumeration System with 4,435 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 Ventura - 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 Ventura 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 Ventura is weighted toward Behavior Technician (543 clinicians, followed by Marriage & Family Therapist with 426 and Family Medicine Physician with 234). 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, Ventura reports roughly 11.4 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 Ventura 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 Ventura, CA?

There are 4,435 registered healthcare providers in Ventura, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Ventura?

The most common specialties in Ventura are Behavior Technician, Marriage & Family Therapist, Family Medicine Physician, Student in an Organized Health Care Education/Training Program, Mental Health Counselor. Behavior Technician has the most providers with 543.

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.