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 41 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. Jeri Masuda, RNRegistered Nurse1003957473
  2. Cory Matacio, MPTPhysical Therapist1902994254
  3. Cristian Mateescu, MDPsychiatry Physician1144271768
  4. Sonushya Mathai, M.D.Psychiatry Physician1164886537
  5. Peter Mathews, MDInternal Medicine Physician1578641304
  6. Rubicela MatiasStudent in an Organized Health Care Education/Training Program1093241861
  7. Carmen Matias MendozaBehavior Technician1285464438
  8. Jane Matijasic, LCSW BCDClinical Social Worker1306852348
  9. Gregory Matsumoto, PSY.D.Clinical Psychologist1295753341
  10. Craig Maurer, D.C.Chiropractor1053559989
  11. Lewis May, MDDermatology Physician1316025158
  12. Nathalie Maya, R.N.Registered Nurse1841639895
  13. Iris MayorgaLicensed Vocational Nurse1669158457
  14. Mercy MbaeLicensed Psychiatric Technician1275399651
  15. Lori Mc AllenAddiction (Substance Use Disorder) Counselor1699212415
  16. Bret Mc LaughlinClinical Psychologist1033357595
  17. Ronald McAllister, MDFamily Medicine Physician1023388048
  18. Laureen McAndrewStudent in an Organized Health Care Education/Training Program1922357854
  19. Bruce McCall, PT ATCPhysical Therapist1255410015
  20. Sabrena McCarleyOccupational Therapist1508255639
  21. Robin McCarthy, D.C.Chiropractor1518164144
  22. Marie McCarty, RDNRegistered Dietitian1346068491
  23. Roman McClellanBehavior Technician1801614102
  24. Shantea McClellan, M.S.Assistant Behavior Analyst1316478969
  25. Cheri McClendonBehavior Technician1841075645
  26. William McClure, M.D.Plastic Surgery Physician1366477689
  27. Michele McColm, PHDClinical Psychologist1225076698
  28. Christie Brae McCormickBehavior Technician1124709530
  29. John McCormickMassage Therapist1134727894
  30. Joseph McCoy, M.D.Orthopaedic Surgery Physician1013019082
  31. Jacqueline McCueClinical Social Worker1568900462
  32. Abigail McDanielBehavior Technician1730953225
  33. Brian McDanielsMental Health Counselor1699075911
  34. Imani McDonaldBehavior Technician1487510939
  35. Tara McDowellBehavior Technician1922827518
  36. Ylece McDowellBehavior Technician1275317083
  37. Colette McGeough, RN, PHNRegistered Nurse1235443466
  38. Gail McGlothlen, RN-C, MSClinical Nurse Specialist1679598551
  39. Vanessa McGowan, M.D.Physical Medicine & Rehabilitation Physician1154649275
  40. Anne McGowen, CADCIIAddiction (Substance Use Disorder) Counselor1588802755
  41. Christine McGrath, RNRegistered Nurse1215259551
  42. Katherine McGuirePsychiatric/Mental Health Registered Nurse1245883107
  43. John McIlnay, PSYDPsychologist1033531223
  44. Scott McKeanMarriage & Family Therapist1851709935
  45. Monica McKeever, MDInternal Medicine Physician1538135298
  46. Sarah McLaughlinBehavior Analyst1477043966
  47. Sharon McLaughlin, LMFTMarriage & Family Therapist1881751444
  48. Daniel McMahon, M.D.Emergency Medicine Physician1700181401
  49. Madison McMahonBehavior Technician1164398376
  50. Cyan McMillanDay Training/Habilitation Specialist1255035382

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.