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 48 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. Jennifer Ogata, MPTPhysical Medicine & Rehabilitation Physician1982418067
  2. Matthew Oglesby, M.D.Physical Medicine & Rehabilitation Physician1013328293
  3. Sarada OglesbyMarriage & Family Therapist1518194273
  4. Janelle Oishi, MSWSocial Worker1780114579
  5. Robert Okin, MDPsychiatry Physician1891863809
  6. Serene OlerCase Manager/Care Coordinator1144100595
  7. Alejandra Olguin, ASWClinical Social Worker1508399189
  8. Cuauhtemoc Olguin-SolanoRehabilitation Practitioner1427256759
  9. Shannon Oliveira, LMFTMarriage & Family Therapist1386874626
  10. Daniel Oliver, MDObstetrics & Gynecology Physician1568540300
  11. Rosa OlmosSocial Worker1194922567
  12. Mariecris OlonanBehavior Analyst1356039481
  13. Ashley Olson, LCSWClinical Social Worker1003486085
  14. Bridget OlsonSpeech-Language Pathologist1245609668
  15. Daisy OlveraBehavior Technician1164180154
  16. Michelle OoDay Training/Habilitation Specialist1548976707
  17. Kimberly Opitz, MPA, PA-CPhysician Assistant1376875872
  18. Maram OraikatBehavior Technician1962278382
  19. Christina Oravec, M.S.W.Social Worker1609947753
  20. Dominic OrdazCounselor1659031888
  21. Gerald Orecchia, RPHPharmacist1477864890
  22. Javi OrellanaOccupational Therapist1679165930
  23. Nolen Oribello, FNP-CFamily Nurse Practitioner1447093471
  24. Ryley OrnelasBehavior Technician1952189557
  25. Lizeth OroscoBehavior Technician1043196140
  26. Daniela OrozcoBehavior Technician1013707439
  27. Amber OrtegaProfessional Counselor1225711773
  28. Sonia Ortega, LCSWClinical Social Worker1821140104
  29. Alfredo Ortiz, RNPsychiatric/Mental Health Registered Nurse1699314245
  30. Casaundra OrtizClinical Social Worker1467091397
  31. Deisi Ortiz, LVNLicensed Vocational Nurse1376023754
  32. Inez OrtizBehavior Technician1528887114
  33. Rebecca OrtizRehabilitation Practitioner1013400381
  34. Stephanie OrtizBehavior Technician1336833177
  35. Veronica Ortiz, C.N.M.Advanced Practice Midwife1073670311
  36. Cherryl Ortiz LuisLicensed Vocational Nurse1427702711
  37. Angelica Ortiz-FloresCase Manager/Care Coordinator1851088363
  38. Chika OsajinduBehavior Technician1255177937
  39. Adjuwa OsborneBehavior Technician1740858372
  40. Victoria Osorio VelasquezMental Health Counselor1356020796
  41. Alejandro OsornioCase Manager/Care Coordinator1457098956
  42. Jeremy OstranderAddiction (Substance Use Disorder) Counselor1194927483
  43. Haley OstromCase Manager/Care Coordinator1730763640
  44. Edna Pacheco, RNCase Management Registered Nurse1932262730
  45. Heather Paciotti, MDInternal Medicine Physician1992883730
  46. Anne Marie Paclebar Mahoney, PSY.DForensic Psychologist1487828810
  47. Adilene PadillaBehavior Technician1376285692
  48. Jennifer Padilla, LMFTMarriage & Family Therapist1417330622
  49. Modesti PadillaBehavior Technician1134769730
  50. Citlaly Padilla AyalaBehavior Technician1841051067

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.