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 47 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. Dulce Nieves ReyesCase Manager/Care Coordinator1245800465
  2. Robert Niklewicz, PTSports Physical Therapist1144332875
  3. Andrew Nimmich, M.D.Vascular Surgery Physician1396238945
  4. Teresa NinaSocial Worker1972137347
  5. Sandra Nissim, OTRPediatric Occupational Therapist1164578803
  6. Bryan Nokelby, D.D.S.General Practice Dentistry1417041880
  7. Nazanin Nooraei, AUDAudiologist-Hearing Aid Fitter1982087383
  8. Raichill NorgroveBehavior Technician1386382380
  9. Christine Norris, RADTAddiction (Substance Use Disorder) Counselor1801426887
  10. Michael Novak, MDFamily Medicine Physician1972501179
  11. Sacia NovakClinical Social Worker1558801381
  12. Farhad Numan, M.D.Child & Adolescent Psychiatry Physician1164528998
  13. Ernest NunesAddiction (Substance Use Disorder) Counselor1235306259
  14. Lauren NunesBehavior Technician1891312757
  15. Erin NunezCounselor1063684124
  16. Gloria Nunez, RN, PHN, MSMaternal Newborn Registered Nurse1215104005
  17. Nicole NunezStudent in an Organized Health Care Education/Training Program1063140127
  18. Ramon NunezBehavior Technician1689305708
  19. Sean Nunez, MSWMental Health Counselor1134693393
  20. Jaden NunoBehavior Technician1780494427
  21. Brittany Nyeholt, MS, CCC-SLPSpeech-Language Pathologist1437097813
  22. Lauren Nystrom, PA-CMedical Physician Assistant1336398304
  23. Claret Nze, NPWomen's Health Nurse Practitioner1194783407
  24. Erin O'BraBehavior Technician1124628813
  25. Kelly O'Connell, RNRegistered Nurse1952645103
  26. Lynn O'Connell, DAOM, L.AC.Acupuncturist1134435829
  27. Siobhan O'Grady, LCSWClinical Social Worker1578058541
  28. Kyle O'HaraFamily Nurse Practitioner1881055283
  29. Sarah O'Malley, MFTMarriage & Family Therapist1063667178
  30. Brian O'Neil-DominguezBehavior Technician1013637222
  31. Kathleen O'Neill, RPHPharmacist1699076505
  32. Kenneth O'Neill, OTR/LHand Occupational Therapist1649400169
  33. Lauren O'Neill, CCC-SLPSpeech-Language Pathologist1104788843
  34. Katherine O'RearOccupational Therapist1285465047
  35. Patrick O'Reilly, PHDPsychologist1700054467
  36. Maureen O'Shea, PH.D.Clinical Psychologist1285719658
  37. Elilah OakleyBehavior Technician1922707603
  38. Cherie Obranovich Babcock, PSYDClinical Psychologist1518389501
  39. Desiree Obrero, PTOrthopedic Physical Therapist1215897251
  40. Katherine Ocampo, BAAssistant Behavior Analyst1992206296
  41. Alexander OchoaMarriage & Family Therapist1548634439
  42. Griselda OchoaRegistered Nurse1801438817
  43. Lesley Ochoa CastilloBehavior Technician1447088083
  44. Damian Regino Ochoa Padilla, LVNLicensed Vocational Nurse1396606976
  45. Cynthia Oconnell, PHDClinical Social Worker1982756201
  46. Nikki OdinLicensed Vocational Nurse1962023259
  47. Dana Oertel, PSYDClinical Psychologist1518499029
  48. Gretchen OertelMental Health Counselor1275760159
  49. Alyssa OezerSpeech-Language Pathologist1093321416
  50. Paul OgaPharmacist1518523687

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.