NPPES file of Aug 9, 2026

Doctors and health care providers in Vacaville, CA

1,903 individual NPPES records list a practice address in Vacaville, 117th of 812 California cities. The largest group is behavior technician: 310, 16% of the city's records, against 18% across California. Page 25 of 39.

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

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

The 8 largest groups in Vacaville

  1. Behavior Technician310
  2. Pharmacist127
  3. Marriage & Family Therapist107
  4. Clinical Social Worker91
  5. Physical Therapist78
  6. Mental Health Counselor62
  7. Clinical Psychologist61
  8. Family Medicine Physician56

Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.

Vacaville in California

  • Rank in California117th of 812 cities by records
  • Share of the state0.2% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups28.6% of all records

Compared with California as a whole, Vacaville has 2.5× the state's share of clinical psychologist records and 0.40× its share of case manager/care coordinator records.

Providers in Vacaville, alphabetically

  1. Jeremiah Neal, MSW, ASWClinical Social Worker1184157299
  2. Joseph NedelcuRegistered Respiratory Therapist1649734161
  3. Sangeetha Nedunchezhian, DDSGeneral Practice Dentistry1912057456
  4. Marissa Neis-Gimenez, MDInternal Medicine Physician1033297924
  5. Cathleen Nelson, M.S.Marriage & Family Therapist1568832632
  6. Davon NelsonBehavior Technician1396596367
  7. Tara NelsonStudent in an Organized Health Care Education/Training Program1538908314
  8. Vanessa Netten, M.P.TPhysical Therapist1669756359
  9. Michelle Neveu, NPAcute Care Nurse Practitioner1639607666
  10. Veltilena Newbolt-BrownAddiction (Substance Use Disorder) Counselor1205596517
  11. Stephen Newman, M.D.Family Medicine Physician1063506756
  12. Eufemia Ngaya, RNRegistered Nurse1538931019
  13. Noy NgoOptometrist1477949311
  14. Hanais NgonzoBehavior Technician1508577917
  15. Anthony NguyenPharmacist1063003655
  16. Diane NguyenPharmacist1366975526
  17. Huong Nguyen, PHARM.D.Pharmacist1396096541
  18. Jenny NguyenOccupational Therapist1134602220
  19. Julie Nguyen, MDInternal Medicine Physician1568059822
  20. Khanhlinh NguyenBehavior Technician1104470566
  21. Lanchinh Nguyen, MDGastroenterology Physician1487732921
  22. Lynn Nguyen, LCSWClinical Social Worker1639438005
  23. Michael Nguyen, PHARMDPharmacist1578909495
  24. Michele Nguyen, PHARM.DPharmacist1841889599
  25. Mike NguyenPharmacist1356859300
  26. Natalie Nguyen, PHARMDPharmacist1083047302
  27. Phuong NguyenCounselor1699967422
  28. Queen NguyenBehavior Technician1699480020
  29. Samantha Nguyen, PHARM DPharmacist1538692710
  30. Thuy NguyenPharmacotherapy Pharmacist1255741526
  31. Tina NguyenBehavior Technician1477344224
  32. Uyen Nguyen, RPHPharmacist1326579855
  33. Hang Nhan, ODOptometrist1831237569
  34. Troy Nichols, PHARM D.Pharmacist1922389857
  35. John NicolMental Health Counselor1174688469
  36. Brian Nicoll, DDSPeriodontics1053471706
  37. Tracy NiederbergerPhysical Therapy Assistant1508004847
  38. Carrie Nielsen, CPT, PT ASCPPhlebotomy Technician1376405365
  39. Eric Niemeyer, PSY. D.Clinical Psychologist1154584894
  40. Paola Nieto JimenezStudent in an Organized Health Care Education/Training Program1972197879
  41. Crystalyn Nightingale, BSN, RN, IBCLCLactation Consultant (Registered Nurse)1720864580
  42. Lesya Nikitin, RTCritical Care Registered Respiratory Therapist1568927762
  43. Nimmy NinanPharmacist1073008942
  44. Gena Ninivaggio, LCSWClinical Social Worker1700011202
  45. Sungryong Noh, M.D.Internal Medicine Physician1336440908
  46. Michael NolanPharmacist1013467380
  47. Stephanie Nonawzki, DOPediatrics Physician1285214601
  48. Alicia Nordstrom, MSSpeech-Language Pathologist1952075798
  49. Alfredo Noriega, M.D.Surgery Physician1912116864
  50. Heidi Noriesta, LVNLicensed Vocational Nurse1326707191

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

Vacaville, California appears in the CMS National Plan and Provider Enumeration System with 1,903 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 Vacaville - 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 Vacaville 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 Vacaville is weighted toward Behavior Technician (310 clinicians, followed by Pharmacist with 127 and Marriage & Family Therapist with 107). 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, Vacaville reports roughly 4.9 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.

For Vacaville 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 Vacaville, CA?

There are 1,903 registered healthcare providers in Vacaville, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Vacaville?

The most common specialties in Vacaville are Behavior Technician, Pharmacist, Marriage & Family Therapist, Clinical Social Worker, Physical Therapist. Behavior Technician has the most providers with 310.

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.