NPPES file of Aug 9, 2026

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 72 of 72.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

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

  1. Luana Yu, DMDDentist1316688518
  2. Vincent Yu, DMDDentist1023759222
  3. Hae Sook Yuo, M.D.Psychiatry Physician1184633901
  4. Winefred YusonRehabilitation Practitioner1437791712
  5. Yana ZadershchenkoBehavior Technician1649906116
  6. Aizah Zaidi, LVNLicensed Vocational Nurse1659942209
  7. Cecilia ZaragozaCase Manager/Care Coordinator1679713408
  8. Alexandria ZarateLicensed Vocational Nurse1497642797
  9. Joelle Zarzana, O.D.Optometrist1386794170
  10. Linda Zderick, PTPhysical Therapist1922159334
  11. Matthew Zeiderman, M.D.Plastic Surgery Physician1700236163
  12. Robert Zellmer, M.D.Anesthesiology Physician1306850318
  13. Robert Zemanek, MFTMarriage & Family Therapist1285704262
  14. Khairiyah ZenoBehavior Technician1689301681
  15. Jessica Zepeda, MA COUNSELING, PPSCSchool Counselor1437025723
  16. Jorge ZepedaCommunity Health Worker1861330482
  17. Luis Zermeno CabelloBehavior Technician1164394094
  18. Yuki ZhangBehavior Technician1104546316
  19. Ricky ZhuGeneral Practice Dentistry1326668443
  20. Savannah ZielkeBehavior Technician1639816424
  21. Alex Ziga, MDPsychiatry Physician1710939640
  22. Rhea Zimmerman, D.C.Chiropractor1689909293
  23. John Zimmermann, M.D.Specialist1558380154
  24. Rachel ZionSpeech-Language Pathologist1679078653
  25. Christina Zoppel, LCSWClinical Social Worker1346410370
  26. Nikola Zunic, L.AC, CMTAcupuncturist1619407434
  27. Maria Zuniga, LCSWClinical Social Worker1770632358
  28. Samantha ZunigaBehavior Technician1598606667
  29. Maria Zuniga Vazquez, RDOOptician1336788595
  30. Michelle ZuritaBehavior Technician1306722236
  31. Jeffrey Zwerin, DOPsychiatry Physician1104879865
  32. Andrew Zwers, D.M.D.Dentist1982999553
  33. Diana ZwersDentist1285929299

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

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.