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.
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
- Velvet SiddellBehavior Technician1497679203
- Melanie Sierra, CADC II-CSCase Manager/Care Coordinator1548539794
- Tammy Sievers, MDRheumatology Physician1619004694
- Lacey Sikula, DPTPhysical Therapist1104369412
- Molly SilkClinical Social Worker1861217226
- Jon Sills, O.D.Optometrist1467593186
- Valeria Silva, CNMAdvanced Practice Midwife1154292712
- John Silvera, DC CHIROPRACTORChiropractor1356404628
- Ira Silverman, M.D.Obstetrics & Gynecology Physician1316004005
- Richard Silvey, A051880218Addiction (Substance Use Disorder) Counselor1336632611
- Lilia Simakova, LVNLicensed Vocational Nurse1447643606
- Tatevik Simavorian, DOInternal Medicine Physician1104446889
- Irene SimentalClinical Social Worker1710456058
- Emily Simm, PA-CPhysician Assistant1528458684
- Elizabeth Simoneit, MDAddiction Medicine (Family Medicine) Physician1285257378
- Gail Simpson, M.D.Internal Medicine Physician1245260702
- Kavitha Simpson, DOFamily Medicine Physician1851554463
- Reanne Singer, PH.D.Psychologist1942312434
- Andrew SinghStudent in an Organized Health Care Education/Training Program1578183349
- Charu Singh, M.D.Radiation Oncology Physician1841741212
- Deepkiran SinghStudent in an Organized Health Care Education/Training Program1609561018
- Nugdeep Singh, M.D.Student in an Organized Health Care Education/Training Program1548964125
- Vivek Singh, DDSDentist1699277046
- Monica SinsunAddiction (Substance Use Disorder) Counselor1326520008
- Iman Sionit, PHARM DPharmacist1982981502
- Annie Siroky, LM, CPMMidwife1750164810
- Alan Siu, MDNeurological Surgery Physician1306073457
- Ranjini Sivaramakrishnan, D.D.S.General Practice Dentistry1447407648
- Christopher Skillern, MDVascular Surgery Physician1205936697
- Giti Skolnick, RNCase Manager/Care Coordinator1346889201
- Kristopher Skromme, O.D.Optometrist1437452950
- Evan Slater, M.D.Medical Oncology Physician1992869044
- Susan Slater, M.D.Internal Medicine Physician1790041457
- Kim SloanLicensed Psychiatric Technician1124209739
- Kaitlyn SlonikerMarriage & Family Therapist1245950286
- Samuel Small, D.O.Orthopaedic Surgery of the Spine Physician1992761894
- Sandra SmallwoodCase Manager/Care Coordinator1134420086
- Alexander Smith, L.ACAcupuncturist1588263198
- Bobby Smith, O.D.Optometrist1023320504
- Carol Smith, LPTLicensed Psychiatric Technician1871619205
- Dana SmithMental Health Counselor1295053049
- Dean Smith, M.D.Family Medicine Physician1306991930
- Deborah Smith, MPTOrthopedic Physical Therapist1023082294
- Jedidiah Smith, D.C.Chiropractor1376693424
- Jeremiah SmithBehavior Analyst1740771468
- Joshua SmithMental Health Counselor1932542735
- Juliette SmithBehavior Technician1740039882
- Kathleen SmithBehavior Analyst1770106064
- Lillian SmithBehavior Technician1578485405
- Mark Smith, M.D.Family Medicine Physician1922165620
The largest California cities
- Los Angeles69,537
- San Diego52,937
- San Francisco38,143
- Sacramento33,083
- San Jose20,925
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.