NPPES file of Aug 9, 2026

Doctors and health care providers in Chico, CA

3,684 individual NPPES records list a practice address in Chico, 58th of 812 California cities. The largest group is mental health counselor: 657, 18% of the city's records, against 3% across California. Page 41 of 74.

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

Chico in California

  • Rank in California58th of 812 cities by records
  • Share of the state0.4% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups32.2% of all records
  • Mental Health Counselor rank7th of the 10 California cities with the most

Compared with California as a whole, Chico has 6.4× the state's share of adult companion records and 0.07× its share of behavior technician records.

Providers in Chico, alphabetically

  1. Dylan Martinusen, PPSSchool Psychologist1336019413
  2. Gurjit Marwah, MDPediatrics Physician1780776328
  3. Linda MarzollaLicensed Vocational Nurse1174864300
  4. Christine Mascarenas, ASWClinical Social Worker1275943383
  5. David Mason, DCChiropractor1982082830
  6. Natalie Mason, RD, CSSDSports Dietetics Nutrition Registered Dietitian1144041682
  7. Christopher Massa, M.D.Interventional Cardiology Physician1295728392
  8. Chloe MassettAdult Companion1487488284
  9. Holly MassieRehabilitation Counselor1437210598
  10. Larry Masula, D.C.Neurology Chiropractor1689780140
  11. Imelda MataPhysician Assistant1134731268
  12. Karen Mata, BHCMental Health Counselor1548916570
  13. Rebecca MataMental Health Counselor1265948566
  14. Ariyah MathesonAdult Companion1043142680
  15. Leonard Matheson, PH.D.Psychologist1700988540
  16. Judith MathieuStudent in an Organized Health Care Education/Training Program1497885040
  17. Thomas Mattera, AMFTMarriage & Family Therapist1043974512
  18. Joseph Matthews, MDColon & Rectal Surgery Physician1750461661
  19. Kevin MatthewsMental Health Counselor1932525490
  20. Richard Matthews, MDColon & Rectal Surgery Physician1841450145
  21. Susan Matthiessen, LCSWClinical Social Worker1497783013
  22. Michelle MattoxMental Health Counselor1053704650
  23. Omolade Maurice-Diya, M.DInterventional Pain Medicine Physician1821354200
  24. Christopher Mausolff, M.S.Marriage & Family Therapist1023293529
  25. Alison Maxey, MSSpeech-Language Pathologist1689357543
  26. Thomas MayMental Health Counselor1396160925
  27. Rosanna MaybrunMental Health Counselor1184984288
  28. Maya MayfieldAddiction (Substance Use Disorder) Counselor1568772341
  29. Sara Mayne, LCSWClinical Social Worker1083013841
  30. Jessica MaynesSchool Counselor1497204283
  31. Raven MaysMental Health Counselor1730585431
  32. Lee Mayta, LVNLicensed Vocational Nurse1235707183
  33. Claritza MazariegosMental Health Counselor1578110425
  34. Walter Mazen, M.D.Obstetrics Physician1649292624
  35. Sam Mazj, MDHematology & Oncology Physician1043287378
  36. Deanna Mc Coy, ACA, BC-HISHearing Instrument Specialist1760554000
  37. Joshua McAtee, RDRegistered Dietitian1780288985
  38. Sawyer McAvoySocial Worker1558181768
  39. George McBee, DCChiropractor1205855442
  40. Casey McBrideLicensed Vocational Nurse1427282110
  41. Michael McCafferty, RDNRegistered Dietitian1871303362
  42. Norman McCann, MDAllergy Physician1942217500
  43. Brittanni McCarleyDay Training/Habilitation Specialist1508417080
  44. Vernon McCartneyAthletic Trainer1558815183
  45. Danielle McCartyPeer Specialist1437979432
  46. Steven McComb, D.D.S.Dentist1174759088
  47. Deanna McConnell, NPFamily Nurse Practitioner1760565758
  48. Dewane McConnellPharmacist1881345296
  49. Matthew McCowan, D.C.Chiropractor1598921652
  50. Mariah McCreadyStudent in an Organized Health Care Education/Training Program1215506324

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

Chico, California appears in the CMS National Plan and Provider Enumeration System with 3,684 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 Chico - 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 Chico 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 Chico is weighted toward Mental Health Counselor (657 clinicians, followed by Marriage & Family Therapist with 303 and Clinical Social Worker with 228). 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, Chico reports roughly 9.5 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 Chico practice address, a coverage gap Chico patients typically fill by traveling to a larger nearby hub.

For Chico 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 Chico, CA?

There are 3,684 registered healthcare providers in Chico, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Chico?

The most common specialties in Chico are Mental Health Counselor, Marriage & Family Therapist, Clinical Social Worker, Addiction (Substance Use Disorder) Counselor, Licensed Vocational Nurse. Mental Health Counselor has the most providers with 657.

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.