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 36 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. Denise Layten, MFTMarriage & Family Therapist1750473674
  2. Ryan Lazarus, D.C.Chiropractor1538244041
  3. Jeneca LeLicensed Psychiatric Technician1780495283
  4. Mariah LealMental Health Counselor1053817064
  5. Katharine Leaning, M.D.Pediatrics Physician1275595191
  6. Kayla LebeauBehavior Technician1548121312
  7. Diana Ledesma LeonBehavior Technician1326854654
  8. Ariadne Ledesma-ArredondoBehavior Technician1689327298
  9. Montserrat LedezmaBehavior Technician1558970905
  10. Cecilia Lee, L.AC., DIPL CHAcupuncturist1689893364
  11. Courtney LeeBehavior Technician1992289078
  12. Daniel Lee, DDSDentist1972236107
  13. Do-Eun Lee, MDEndocrinology, Diabetes & Metabolism Physician1346339652
  14. Eric Lee, M.D.Internal Medicine Physician1821520032
  15. Grace LeeBehavior Technician1326667239
  16. Hau'Oli LeeBehavior Technician1891594669
  17. Janet LeePharmacist1679046312
  18. Ji Won LeeBehavior Technician1295481281
  19. Robert Lee, CRNFARegistered Nurse First Assistant1083732218
  20. Russell Lee, DDSDentist1609068147
  21. Sonia Lee, MDPediatrics Physician1225100035
  22. Tiffany LeeBehavior Technician1225819188
  23. Vote LeePsychiatric/Mental Health Registered Nurse1790024263
  24. Steven Leeds, M.S.W.Mental Health Counselor1760546279
  25. Harriet Lehman, PH.D.Clinical Psychologist1316090764
  26. Laura Lehman, PSYDSchool Psychologist1447123930
  27. Lynette Leighton, M.D.Family Medicine Physician1184875056
  28. Denae Leigon, MFTMarriage & Family Therapist1154470268
  29. Kristi LeikvollMental Health Counselor1922298231
  30. Gregory Leipzig, M.D.Anesthesiology Physician1750452033
  31. Karla Leiva DekerMarriage & Family Therapist1306665997
  32. Krystal LeleaAddiction (Substance Use Disorder) Counselor1699284927
  33. Thomas LemarBehavior Technician1881521219
  34. Lauren Lemieux, M.S., CCC-SLPSpeech-Language Pathologist1083010433
  35. Ivy LenardBehavior Technician1629817648
  36. George Lendaris, R.P.T.Specialist1639266133
  37. Troy LenningMental Health Counselor1467059238
  38. Natasha LennittRehabilitation Practitioner1508390279
  39. Diana LeonBehavior Technician1609552363
  40. Eduardo LeonAddiction (Substance Use Disorder) Counselor1194305870
  41. Federico Leon, M.D.Family Medicine Physician1659349173
  42. Veronica LeonLicensed Vocational Nurse1407492481
  43. Maria Leon Hernandez, LVNLicensed Vocational Nurse1093559023
  44. Mara Leon-Hestenes, LCSWClinical Social Worker1639447204
  45. Aria LeoneBehavior Technician1073107462
  46. Yelena LepekhinaBehavior Technician1003759655
  47. Shawna Leppert, PSYDPsychologist1255764197
  48. Diana Lessley, RADTAddiction (Substance Use Disorder) Counselor1689337933
  49. Jarayla LesterBehavior Technician1306548623
  50. Nooshin Lester, RNGerontology Registered Nurse1174112890

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.