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 14 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
- Lillian CastellonAddiction (Substance Use Disorder) Counselor1932654589
- Amber CastilloPeer Specialist1093524233
- Ma Rowena Castillo, DPTPhysical Medicine & Rehabilitation Physician1124860614
- Maria CastilloBehavior Technician1427975630
- Giselle CastroLicensed Vocational Nurse1780510719
- Thomas Castro, DPTOrthopedic Physical Therapist1386222875
- Laura Castro-BarretoBehavior Technician1104468321
- Jessica Cataldo-RamirezPhysician Assistant1922642115
- Ashley CatesAddiction (Substance Use Disorder) Counselor1528474202
- Desiree CayerRegistered Nurse1235748401
- Breanna Caywood, DOStudent in an Organized Health Care Education/Training Program1023850633
- Aiyana Cazabat, MA, LMFTMarriage & Family Therapist1952005837
- Eliza Cazares, SLPASpeech-Language Assistant1972138592
- Maritza CazaresStudent in an Organized Health Care Education/Training Program1902779119
- Araceli CedilloMarriage & Family Therapist1164254827
- Richard Cegelski, M.D.Emergency Medical Services (Emergency Medicine) Physician1235390071
- Yadira CejaBehavior Technician1316822067
- Daina CelioBehavior Technician1407795545
- Rosa CelisAddiction (Substance Use Disorder) Counselor1356016737
- Natalia Cenzano, DDSGeneral Practice Dentistry1871600726
- Gerard CeraosMental Health Counselor1497210892
- Ariana CerenBehavior Technician1114870193
- Casey CervantesBehavior Technician1063355006
- Fernando Cervantes, PMHNPPsychiatric/Mental Health Nurse Practitioner1396179131
- Jenean CervantesMental Health Counselor1346171014
- Miguel Cervantes, M.D.Family Medicine Physician1083777023
- Ramona CervantesCase Manager/Care Coordinator1225342496
- Unique CervantesBehavior Technician1285427930
- Joseph CervantezAddiction (Substance Use Disorder) Counselor1558810226
- Irene CezarLicensed Vocational Nurse1508523465
- Robert Chacon, C.O.Orthotist1114192796
- Ally Chae, MPTSpecialist1154569887
- Nan Chaet, MS, CCC-SLPSpeech-Language Pathologist1366689010
- Wikrom Chaiwatcharayut, M.D.Internal Medicine Physician1306259809
- Hana Chakalian, DOInternal Medicine Physician1962145631
- Ashley ChambersBehavior Technician1508667023
- William ChampionMental Health Counselor1649721226
- Ivan Chan, LMFTMarriage & Family Therapist1669167771
- May Chan, O.D.Optometrist1891179545
- Melenie Chandler, PTAPhysical Therapy Assistant1881368611
- Mark Chaney, A.T.C.Specialist1912973777
- Annie ChangFamily Medicine Physician1396191995
- David Chang, LVNLicensed Vocational Nurse1477109148
- Diana ChangEndocrinology, Diabetes & Metabolism Physician1396142386
- Kyung ChangPharmacist1174763510
- Li-Wen ChangMental Health Counselor1558537365
- Steven Chang, M.D.Ophthalmology Physician1174598239
- George Chang Chien, D.O.Interventional Pain Medicine Physician1346565280
- Audree Chapman, LMFTMarriage & Family Therapist1164936704
- Pamela Chapman, LMFTClinical Social Worker1922202076
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.