Doctors and health care providers in Napa, CA
3,583 individual NPPES records list a practice address in Napa, 63rd of 812 California cities. The largest group is behavior technician: 990, 28% of the city's records, against 18% across California. Page 11 of 72.
The 8 largest groups in Napa
Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.
Napa in California
- Rank in California63rd of 812 cities by records
- Share of the state0.4% of California's records
- Specialties present25 or more taxonomy codes
- Top three groups37% of all records
Compared with California as a whole, Napa has 4.4× the state's share of licensed psychiatric technician records and 0.28× its share of student in an organized health care education/training program records.
Providers in Napa, alphabetically
- Albert CastellonClinical Social Worker1295241479
- Alexis CastilloBehavior Technician1053983700
- Crystal CastilloBehavior Technician1376386094
- Eric CastilloBehavior Technician1104618388
- Jacey CastilloRehabilitation Practitioner1285154591
- Sheila CastilloCommunity Health Worker1104539758
- Ivan Castillo BarraganCommunity Health Worker1548893449
- Luis Castillo- RexachMarriage & Family Therapist1083270813
- Derek CastrejonBehavior Technician1598627549
- Disnay Castrejon, PHARMDAmbulatory Care Pharmacist1548776271
- Luis CastroBehavior Technician1710765060
- Roxana CastroMarriage & Family Therapist1053458208
- Jacklynn Castro - PerezBehavior Technician1013682467
- Victor Castro CortezClinical Social Worker1689229502
- Anabel Castro-De BattistaLicensed Vocational Nurse1528684172
- Suleira Castro-Martinez, RNPsychiatric/Mental Health Registered Nurse1992238752
- Diana Catalanotto, IMF 49493Addiction (Substance Use Disorder) Counselor1982809778
- Vicki Caul-PoseyCounselor1497971196
- Katrine Lisette Cayabyab, RPHPharmacist1790085116
- Leonard CayananLicensed Vocational Nurse1568818862
- Ma Juliana CayetanoBehavior Technician1477230662
- Evelia CazaresCase Manager/Care Coordinator1811138605
- Mary CazaresBehavior Technician1114796851
- Jazmin CeballosBehavior Technician1366126450
- Angelica CejaAdult Companion1457844490
- Mary CelayaMarriage & Family Therapist1134880438
- Kimberly Celio-RamosBehavior Technician1225791775
- Willhellmina S Celz0-OrtizLicensed Psychiatric Technician1104401272
- Emmanuel Cepe, MDFamily Medicine Physician1063526812
- Stacy CerrutiBehavior Technician1619768637
- Jessica CervaniaLicensed Vocational Nurse1407428949
- Andrea CervantesBehavior Technician1073270260
- Kylie ChaRehabilitation Practitioner1518528157
- Kenia Chacon Santa CruzBehavior Technician1629996996
- Simran ChahalBehavior Technician1679499610
- Michelle ChalfantBehavior Technician1376392472
- Heather ChamberlainClinical Child & Adolescent Psychologist1518192483
- Hilarie Chamberland, PHARM.D.Pharmacist1801940606
- Hermina Chan, D.M.D.General Practice Dentistry1598093171
- Julio Chang, LCSWClinical Social Worker1912141144
- Karen ChangBehavior Technician1225823545
- Nathanial Chapman, PH.D.Psychologist1477885010
- Raycia CharfaurosBehavior Technician1083324909
- Sabrina CharlestonBehavior Technician1033941844
- Shevon ChartierLicensed Vocational Nurse1174452478
- Tanya Chase, PSY.D.Psychologist1154485506
- Michele Chaves, MFTIMental Health Counselor1578760062
- Catalina ChavezCommunity Health Worker1467158683
- Elvia ChavezBehavior Technician1861135493
- Emilio ChavezBehavior Technician1174206031
The largest California cities
- Los Angeles69,537
- San Diego52,937
- San Francisco38,143
- Sacramento33,083
- San Jose20,925
How to read this directory
Napa, California appears in the CMS National Plan and Provider Enumeration System with 3,583 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 Napa - 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 Napa 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 Napa is weighted toward Behavior Technician (990 clinicians, followed by Marriage & Family Therapist with 187 and Clinical Social Worker with 147). 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, Napa reports roughly 9.2 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.
Of California's most common specialties, Behavior Analyst is the most prominent one with no provider currently listing a Napa practice address, a coverage gap Napa patients typically fill by traveling to a larger nearby hub.
For Napa 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 Napa, CA?
There are 3,583 registered healthcare providers in Napa, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Napa?
The most common specialties in Napa are Behavior Technician, Marriage & Family Therapist, Clinical Social Worker, Case Manager/Care Coordinator, Clinical Psychologist. Behavior Technician has the most providers with 990.
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.