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 75 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. Velvet SiddellBehavior Technician1497679203
  2. Melanie Sierra, CADC II-CSCase Manager/Care Coordinator1548539794
  3. Tammy Sievers, MDRheumatology Physician1619004694
  4. Lacey Sikula, DPTPhysical Therapist1104369412
  5. Molly SilkClinical Social Worker1861217226
  6. Jon Sills, O.D.Optometrist1467593186
  7. Valeria Silva, CNMAdvanced Practice Midwife1154292712
  8. John Silvera, DC CHIROPRACTORChiropractor1356404628
  9. Ira Silverman, M.D.Obstetrics & Gynecology Physician1316004005
  10. Richard Silvey, A051880218Addiction (Substance Use Disorder) Counselor1336632611
  11. Lilia Simakova, LVNLicensed Vocational Nurse1447643606
  12. Tatevik Simavorian, DOInternal Medicine Physician1104446889
  13. Irene SimentalClinical Social Worker1710456058
  14. Emily Simm, PA-CPhysician Assistant1528458684
  15. Elizabeth Simoneit, MDAddiction Medicine (Family Medicine) Physician1285257378
  16. Gail Simpson, M.D.Internal Medicine Physician1245260702
  17. Kavitha Simpson, DOFamily Medicine Physician1851554463
  18. Reanne Singer, PH.D.Psychologist1942312434
  19. Andrew SinghStudent in an Organized Health Care Education/Training Program1578183349
  20. Charu Singh, M.D.Radiation Oncology Physician1841741212
  21. Deepkiran SinghStudent in an Organized Health Care Education/Training Program1609561018
  22. Nugdeep Singh, M.D.Student in an Organized Health Care Education/Training Program1548964125
  23. Vivek Singh, DDSDentist1699277046
  24. Monica SinsunAddiction (Substance Use Disorder) Counselor1326520008
  25. Iman Sionit, PHARM DPharmacist1982981502
  26. Annie Siroky, LM, CPMMidwife1750164810
  27. Alan Siu, MDNeurological Surgery Physician1306073457
  28. Ranjini Sivaramakrishnan, D.D.S.General Practice Dentistry1447407648
  29. Christopher Skillern, MDVascular Surgery Physician1205936697
  30. Giti Skolnick, RNCase Manager/Care Coordinator1346889201
  31. Kristopher Skromme, O.D.Optometrist1437452950
  32. Evan Slater, M.D.Medical Oncology Physician1992869044
  33. Susan Slater, M.D.Internal Medicine Physician1790041457
  34. Kim SloanLicensed Psychiatric Technician1124209739
  35. Kaitlyn SlonikerMarriage & Family Therapist1245950286
  36. Samuel Small, D.O.Orthopaedic Surgery of the Spine Physician1992761894
  37. Sandra SmallwoodCase Manager/Care Coordinator1134420086
  38. Alexander Smith, L.ACAcupuncturist1588263198
  39. Bobby Smith, O.D.Optometrist1023320504
  40. Carol Smith, LPTLicensed Psychiatric Technician1871619205
  41. Dana SmithMental Health Counselor1295053049
  42. Dean Smith, M.D.Family Medicine Physician1306991930
  43. Deborah Smith, MPTOrthopedic Physical Therapist1023082294
  44. Jedidiah Smith, D.C.Chiropractor1376693424
  45. Jeremiah SmithBehavior Analyst1740771468
  46. Joshua SmithMental Health Counselor1932542735
  47. Juliette SmithBehavior Technician1740039882
  48. Kathleen SmithBehavior Analyst1770106064
  49. Lillian SmithBehavior Technician1578485405
  50. Mark Smith, M.D.Family Medicine Physician1922165620

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.