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 16 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. Sonya HowellMarriage & Family Therapist1770097263
  2. Sandra Howerton, PTPhysical Therapist1689059933
  3. Rachel Howley, DCChiropractor1649919093
  4. Crystal Hsu, D.P.MFoot & Ankle Surgery Podiatrist1790034320
  5. Charles Huang, M.D.Ophthalmology Physician1023080355
  6. Joanne HuangAudiologist1487133997
  7. Virginia Huff, LCSWProfessional Counselor1841785839
  8. Kathryn Hughes, LCSWClinical Social Worker1245384205
  9. Benjamin Hulkower, PH.D.Clinical Psychologist1457571960
  10. Kelsey HumbertBehavior Technician1023651791
  11. Jamie Hundley, LCSWClinical Social Worker1518242080
  12. Katelyn HurtadoBehavior Technician1215587886
  13. Heather HustonBehavior Technician1275175358
  14. Mike Huynh, N.P.Family Nurse Practitioner1245536945
  15. Carleen Hy, PHARMACISTPharmacist1164919072
  16. Abdulkadir Ibrahim, PHARM, D/MPHPharmacist1437692043
  17. Nnenna Ikegbu, M.D.Family Medicine Physician1801077680
  18. Randal IlechukwuBehavior Technician1992598767
  19. Favour ImarhiagbeBehavior Technician1295661403
  20. Michael IngersollBehavior Technician1225825656
  21. Zosima Inton, MSN, FNP-C, RNFamily Nurse Practitioner1366626376
  22. Emily Isaacs, DVMVeterinarian1194108878
  23. Hanadi Isbeih, RBTAssistant Behavior Analyst1073028940
  24. Edwina Island, LMFTMarriage & Family Therapist1639348626
  25. Janice Ivie, NPPsychiatric/Mental Health Nurse Practitioner1184058737
  26. Christian IwanickiAcupuncturist1902440829
  27. Sharon Izen-Tengbergen, M.F.T.Mental Health Counselor1386786572
  28. Zelikha IzmaraiMental Health Counselor1760965313
  29. Aileen Jaber, MDEmergency Medicine Physician1497807614
  30. Amanda Jackson, MDEmergency Medicine Physician1386141844
  31. Kathryn Jackson, NURSE PRACTITIONERNurse Practitioner1790907764
  32. Njaya JacksonAddiction (Substance Use Disorder) Counselor1093037137
  33. Serina Jackson, ASWStudent in an Organized Health Care Education/Training Program1275350399
  34. Jeanette Jacobe, A.BMental Health Counselor1639366305
  35. Robert Jacoby, M.D,Trauma Surgery Physician1255332227
  36. Stephanie JaimeClinical Social Worker1235576331
  37. Sara Jain, DDSGeneral Practice Dentistry1386482784
  38. Maryann JamesCritical Care Certified Respiratory Therapist1417411075
  39. Shelly JamesPsychiatry Physician1437421161
  40. Elaina JannellClinical Psychologist1386813590
  41. Dori Jarrell, LCSWClinical Social Worker1508643313
  42. Irineo JavierRegistered Nurse1750079034
  43. Janay JaymesDoula1629951660
  44. Amina JeanpierreBehavior Technician1093557126
  45. Heather JefferiesAddiction (Substance Use Disorder) Counselor1215818687
  46. Jennifer Jenkins, RPHPharmacist1639605645
  47. Alexcia JenningsClinical Social Worker1063012482
  48. Matthew Jennings, PHARMDPharmacist1710476197
  49. Montel JenningsMental Health Counselor1477618700
  50. Ronald Jennings, PH.DClinical Psychologist1346390713

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.