NPPES file of Aug 9, 2026

Doctors and health care providers in Grass Valley, CA

1,540 individual NPPES records list a practice address in Grass Valley, 142nd of 812 California cities. The largest group is mental health counselor: 151, 10% of the city's records, against 3% across California. Page 7 of 31.

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

Grass Valley in California

  • Rank in California142nd of 812 cities by records
  • Share of the state0.2% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups28.2% of all records

Compared with California as a whole, Grass Valley has 15.1× the state's share of adult companion records and 0.31× its share of student in an organized health care education/training program records.

Providers in Grass Valley, alphabetically

  1. Sheri Cutter, PTPhysical Therapist1801996814
  2. Natalie Cyhanenko, PPSSchool Psychologist1346192176
  3. Joyce Czuprynski, M.D.Pediatrics Physician1013932953
  4. Michael Dahle, MDSpecialist1760454938
  5. Jenelle DailyAddiction (Substance Use Disorder) Counselor1083111850
  6. Barbara Dakin, OMD, LACAcupuncturist1407063233
  7. Jordan DammRehabilitation Practitioner1457623647
  8. Katie Damota, IBCLC, MASSpecialist1659527216
  9. Amanda Danforth, CERTIFED DOULADoula1972340842
  10. Noah Danieli, PAPhysician Assistant1336062603
  11. Deborah DanielsMental Health Counselor1952623167
  12. Danielle DannenfelserCounselor1871189795
  13. Deanna Darby, MFTMarriage & Family Therapist1457791477
  14. Toni Davey, RADTAddiction (Substance Use Disorder) Counselor1265800221
  15. Brandon DavisCounselor1043705734
  16. Helen DavisAddiction (Substance Use Disorder) Counselor1164780417
  17. Ian DavisMental Health Counselor1104301977
  18. Wendy DavisCounselor1275262370
  19. William Davis, MDPlastic and Reconstructive Surgery Physician1588755821
  20. William Davis, RADTAddiction (Substance Use Disorder) Counselor1679060230
  21. Sharon Davis-Battles, CADC-II, #RA04680315Addiction (Substance Use Disorder) Counselor1841761616
  22. Danielle Daviscourt, AMFT, APCCMental Health Counselor1396565198
  23. Christina De Cossio, MFTMarriage & Family Therapist1962129015
  24. Jared De FloresAddiction (Substance Use Disorder) Counselor1639090509
  25. Erica DecimaMental Health Counselor1851020580
  26. Sofia DegruccioTechnician1063012748
  27. Julie Dehollander, RD,CDRegistered Dietitian1124272513
  28. Jack Deitchman, MDPreventive Medicine/Occupational Environmental Medicine Physician1346254141
  29. Cara Del Chiaro, PA-CPhysician Assistant1841938057
  30. Christine DelatorreOrthotic Fitter1609063692
  31. Tina Delaughter, LCSWClinical Social Worker1417336835
  32. Sophia DelegardPhysical Therapist1699376269
  33. Tracy Deliman, PHDClinical Psychologist1760736953
  34. Scott Della Maggiora, RADTAddiction (Substance Use Disorder) Counselor1124626346
  35. Hayley DemarestMarriage & Family Therapist1952620874
  36. Alan Demartini, PHARM.DPharmacist1134403363
  37. David Demartini, RPHPharmacist1356433387
  38. Amanda DemoryLicensed Vocational Nurse1649149162
  39. Teresa DemunckCommunity Health Worker1891508537
  40. Brittney Depew, RADTDay Training/Habilitation Specialist1245740752
  41. Kathryn DeppensmithAudiologist1154530145
  42. Seth DerrickMental Health Counselor1003231473
  43. Kathryn Devine, MA CCC-SLPSpeech-Language Pathologist1891258240
  44. Janae DiazMental Health Counselor1346576618
  45. Mary Dibert, RNRegistered Nurse1801736418
  46. Marlowe DieckmannFamily Medicine Physician1003304536
  47. Mahnee Dinsmore, M.D.Obstetrics & Gynecology Physician1336132273
  48. Windy Dipietro, M.A. LMFTMarriage & Family Therapist1679099733
  49. Jeffrey DodsonAddiction (Substance Use Disorder) Counselor1821485830
  50. David Dokimos, PHARMACISTPharmacist1255954830

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

Grass Valley, California appears in the CMS National Plan and Provider Enumeration System with 1,540 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 Grass Valley - 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 Grass Valley 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 Grass Valley is weighted toward Mental Health Counselor (151 clinicians, followed by Addiction (Substance Use Disorder) Counselor with 148 and Marriage & Family Therapist with 136). 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, Grass Valley reports roughly 4 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 Technician is the most prominent one with no provider currently listing a Grass Valley practice address, a coverage gap Grass Valley patients typically fill by traveling to a larger nearby hub.

For Grass Valley 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 Grass Valley, CA?

There are 1,540 registered healthcare providers in Grass Valley, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Grass Valley?

The most common specialties in Grass Valley are Mental Health Counselor, Addiction (Substance Use Disorder) Counselor, Marriage & Family Therapist, Counselor, Physical Therapist. Mental Health Counselor has the most providers with 151.

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.