NPPES file of Aug 9, 2026

Doctors and health care providers in Fairfield, CA

3,595 individual NPPES records list a practice address in Fairfield, 62nd of 812 California cities. The largest group is behavior technician: 696, 19% of the city's records, against 18% across California. Page 13 of 72.

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 Fairfield

  1. Behavior Technician696
  2. Marriage & Family Therapist221
  3. Addiction (Substance Use Disorder) Counselor173
  4. Counselor134
  5. Clinical Social Worker129
  6. Mental Health Counselor124
  7. Adult Companion111
  8. Registered Nurse108

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

Fairfield in California

  • Rank in California62nd of 812 cities by records
  • Share of the state0.4% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups30.3% of all records

Compared with California as a whole, Fairfield has 14.3× the state's share of adult companion records and 0.51× its share of student in an organized health care education/training program records.

Providers in Fairfield, alphabetically

  1. Johana ContrerasCommunity Health Worker1255044020
  2. Xochitl ContrerasCommunity Health Worker1164984233
  3. Charlene Conway, LPTLicensed Psychiatric Technician1770018962
  4. Aliyah CooglerHome Health Aide1043172406
  5. Anita CookCommunity Health Worker1770137168
  6. Ashley CookMarriage & Family Therapist1760030548
  7. Cory CookCommunity Health Worker1710740238
  8. Cynthia CookDay Training/Habilitation Specialist1619755378
  9. Jill Cook, RN, PHNAdministrator Registered Nurse1083745772
  10. Melanie Cook, MFTMarriage & Family Therapist1013078948
  11. Waverly CookAddiction (Substance Use Disorder) Counselor1447928833
  12. Lawrence Cooney, MDPediatrics Physician1770670085
  13. Brian CooperBehavior Technician1467304493
  14. Doris CooperAddiction (Substance Use Disorder) Counselor1316294960
  15. Keir'Ra CooperAdult Companion1275329237
  16. Kent Cooper, DVMVeterinarian1780559484
  17. Lily-Ann CooperOther Technician1225789266
  18. Sherrie Cooper, RN, BSN, PHNRegistered Nurse1255904355
  19. Taylor CoopwoodBehavior Technician1699459495
  20. Gina Copak, PHARMDPharmacist1760024384
  21. Katrina Copeland, MFTIMarriage & Family Therapist1003272014
  22. Leslie Corbett, ACSWClinical Social Worker1891537130
  23. Martha Corcoran, M.D.Otolaryngology Physician1063487825
  24. Derrick CorderoPeer Specialist1235954934
  25. Kari CorderoPsychiatric/Mental Health Nurse Practitioner1982913489
  26. Kattera Cordero, LMFTMarriage & Family Therapist1710382205
  27. Manuel CorderoAddiction (Substance Use Disorder) Counselor1629343355
  28. Alexandria CordovaBehavior Technician1457052417
  29. Leonor CordovaSocial Worker1700679925
  30. Mia CordovaBehavior Technician1932910106
  31. Kelly Cordova GomezLicensed Vocational Nurse1932960473
  32. Gary Corker, RAD-TAddiction (Substance Use Disorder) Counselor1508572843
  33. Lauren CornwellBehavior Technician1164031191
  34. Cynthia CoronaBehavior Technician1114585999
  35. Jerimya CorpuzBehavior Technician1730980251
  36. Bianca Corral GutierrezSocial Worker1528468162
  37. Alicia CorreaStudent in an Organized Health Care Education/Training Program1093677973
  38. Catalina CorreaBehavior Technician1558831263
  39. Cristina CorreaBehavior Technician1255961140
  40. Sandra Correa SaenzRegistered Nurse1114593860
  41. Dorothy Correia, N.P.Family Nurse Practitioner1215070339
  42. Christopher CortesStudent in an Organized Health Care Education/Training Program1841131745
  43. Jennifer CortezBehavior Technician1982248498
  44. Mae CortezOther Technician1083504120
  45. Kristina CortijoAddiction (Substance Use Disorder) Counselor1659787570
  46. Heidi Cosey, RN, PHNRegistered Nurse1265240642
  47. Brianna CosseyBehavior Technician1649872854
  48. Gabriell CottleBehavior Technician1023886124
  49. Julia CotyCommunity Health Worker1275310690
  50. Elizabeth Coudright, LCSWClinical Social Worker1467849554

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

Fairfield, California appears in the CMS National Plan and Provider Enumeration System with 3,595 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 Fairfield - 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 Fairfield 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 Fairfield is weighted toward Behavior Technician (696 clinicians, followed by Marriage & Family Therapist with 221 and Addiction (Substance Use Disorder) Counselor with 173). 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, Fairfield 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.

For Fairfield 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 Fairfield, CA?

There are 3,595 registered healthcare providers in Fairfield, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Fairfield?

The most common specialties in Fairfield are Behavior Technician, Marriage & Family Therapist, Addiction (Substance Use Disorder) Counselor, Counselor, Clinical Social Worker. Behavior Technician has the most providers with 696.

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.