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 48 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. Margaret Nordeen, MFTMarriage & Family Therapist1407050206
  2. Cheryl NorthropRegistered Nurse1851524359
  3. Myla NorwoodMental Health Counselor1922824689
  4. Alfred Noyes, MDDiagnostic Radiology Physician1619930096
  5. Jodie NullmeyerCounselor1659707446
  6. Jessica Nwabeke, MDStudent in an Organized Health Care Education/Training Program1164363529
  7. Mary Nwabunor, NURSE PRACTITIONER (Nurse Practitioner1780008102
  8. Katie O'BrienMental Health Counselor1437752995
  9. Heather O'ConnellMental Health Counselor1568650109
  10. Daniel O'Donnell, MS, LMFTMarriage & Family Therapist1174251045
  11. Babara O'Gara, LCS 19166Clinical Social Worker1871653709
  12. Erin O'NeilMental Health Counselor1245872100
  13. Edward O'Regan, M.D.Hospitalist Physician1972543379
  14. Jade OatesMental Health Counselor1750101465
  15. Marla OatesSocial Worker1043854730
  16. Robert Oates, DCChiropractor1629145248
  17. Brett ObranovichMental Health Counselor1831549880
  18. Ruby OcampopBehavior Technician1780565713
  19. Paula Ochipinti, PHARM.D.Pharmacist1851772099
  20. Janice Ochoa, RNAdult Psychiatric/Mental Health Registered Nurse1316460199
  21. Jennifer OdegardMental Health Counselor1659778843
  22. Jeannette OdettoSchool Psychologist1194699231
  23. Osamede Odiase, O.DOptometrist1891983219
  24. Emily Odle, RNRegistered Nurse1316591530
  25. Richard Ogden, LPTLicensed Psychiatric Technician1194984427
  26. Teri OgdenAddiction (Substance Use Disorder) Counselor1366746950
  27. Alicia Ogonowski, LCSWClinical Social Worker1306912852
  28. Consuelo OjedaCommunity Health Worker1598284952
  29. Damilola OlaifaAddiction (Substance Use Disorder) Counselor1174287502
  30. Tiffani Olaires, RDRegistered Dietitian1659063824
  31. Ashley Olberg, N.D.Naturopath1144641549
  32. Devin Olio, MASTER PSYCHOGOLYClinical Psychologist1245637263
  33. Regina Olivarez, L.P.TLicensed Psychiatric Technician1407030240
  34. Brittany Oliver, PHARMDPharmacist1194236067
  35. Danica Oliver, MSWClinical Social Worker1740025733
  36. Fredric Olsen, PHARM.DPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1891063855
  37. Brenda Olson, LVNLicensed Vocational Nurse1861574923
  38. Forrest OlsonHospitalist Physician1760434799
  39. Matthew OlsonMental Health Counselor1659830271
  40. Nancy Olson, L.C.S.W.Clinical Psychologist1922293091
  41. Susan Olson Moon, MSMarriage & Family Therapist1992866743
  42. Monica OlveraDay Training/Habilitation Specialist1568304327
  43. Omar On, PA-CPhysician Assistant1295889871
  44. Baran Onder, M.D.Family Medicine Physician1205000460
  45. Jennifer Onstot, M.A., MFTMarriage & Family Therapist1346398898
  46. Michael OrdonMental Health Counselor1588060743
  47. Ruben OrdonezAddiction (Substance Use Disorder) Counselor1093582207
  48. Jennifer Oriley, MF INTERNMarriage & Family Therapist1306901616
  49. Alexandra OrlandoMental Health Counselor1205490018
  50. Cindy OrndorffAddiction (Substance Use Disorder) Counselor1124437397

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.