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 70 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
- Cierra WilliamsDay Training/Habilitation Specialist1326985995
- Danielle WilliamsForensic Psychologist1083304562
- Isis WilliamsBehavior Technician1982290516
- Jasmine WilliamsCommunity Health Worker1821779182
- Kiana WilliamsLicensed Vocational Nurse1245009950
- Maddisen WilliamsBehavior Technician1407656317
- Mara WilliamsAdult Health Nurse Practitioner1861544249
- Marc WilliamsCase Manager/Care Coordinator1013749886
- Marietta Williams, MS, CCC-SLPSpeech-Language Pathologist1376062422
- Nolan WilliamsPsychiatry Physician1811339641
- Patti Williams, L.C.S.W.Clinical Social Worker1457432668
- Phaedra WilliamsDay Training/Habilitation Specialist1932026663
- Rachael WilliamsRehabilitation Practitioner1811420359
- Robert Williams, D.D.S.General Practice Dentistry1457439911
- Sariyah WilliamsBehavior Technician1932887320
- Shelby WilliamsBehavior Technician1639010077
- Courtney WillisMental Health Counselor1205781283
- Tara WilmothBehavior Technician1891654992
- Eleni Wilske, MS, CCC-SLPSpeech-Language Pathologist1942199963
- Andrew Wilson, PAPhysician Assistant1982347522
- Charles WilsonDay Training/Habilitation Specialist1841184116
- Douglas Wilson, MDFamily Medicine Physician1285693572
- Jennifer Wilson, MDFamily Medicine Physician1558378984
- Laurie Wilson, PH.D.Psychologist1932276243
- Michele Wilson, MDInternal Medicine Physician1902984743
- Mishawn WilsonCase Manager/Care Coordinator1417614140
- Natalie Wilson, RDRegistered Dietitian1144946716
- Ruth Wilson, M.D.Internal Medicine Physician1407822331
- Saniyah WilsonBehavior Technician1326723123
- Silvie WilsonMarriage & Family Therapist1346634581
- Zamar WilsonCase Manager/Care Coordinator1417681867
- Jennifer Wilson-HeunFamily Nurse Practitioner1124243472
- Katie Winchell, DPTPediatric Physical Therapist1639537046
- Gregory Wingren, O.D.Optometrist1164857140
- Melissa Winkelhaus, NPNurse Practitioner1609557149
- Julie Winn, PSYDClinical Psychologist1558301507
- Julie Winter, MDInternal Medicine Physician1538247358
- Monica Winters, RN, CNLRegistered Nurse1699058677
- Jayme Wise, LCSWClinical Social Worker1104253913
- Kathleen Wishart, FNPFamily Nurse Practitioner1427084011
- Margaret WitterClinical Social Worker1073044400
- Carol WohlerPsychiatric/Mental Health Registered Nurse1609474048
- Michlene Wojcieszak, MFTMarriage & Family Therapist1528129244
- Anne Wolff, PH.DFamily Psychologist1083888689
- Jonathan Wommack, D.D.S.General Practice Dentistry1558538603
- Linda Wommack, MDPediatrics Physician1396823126
- Andrea Wong, M.D.Internal Medicine Physician1841229317
- Andrew Wong, MDInterventional Cardiology Physician1578543963
- Don Wong, MDPediatrics Physician1265463442
- Janelle Wong, MDFamily Medicine Physician1760001945
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.