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 19 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. Collette McClellan Signor, SUDRCAddiction (Substance Use Disorder) Counselor1952996241
  2. Mark McClungCounselor1730540352
  3. Denise McClure, LCSWClinical Social Worker1942517214
  4. Michael McCormick, M.D.Allergy Physician1235215302
  5. Jana McCrea, MFTMarriage & Family Therapist1679697718
  6. James McCririe, D.C., C.C.S.P.Sports Physician Chiropractor1295808251
  7. Brandy McDanielDay Training/Habilitation Specialist1023729118
  8. Brent McDermott, M.D.Emergency Medicine Physician1902806847
  9. Justin McGahan, LMFT98948Marriage & Family Therapist1598566366
  10. Jessica McGregor, MSW, ACSWClinical Social Worker1124849096
  11. Thomas McHughMental Health Counselor1568025781
  12. Tara McIntire, RRWAddiction (Substance Use Disorder) Counselor1386933067
  13. Victoria McIntire, PT, DPTPhysical Therapist1508330929
  14. Linda McIntosh, NPCommunity Health Registered Nurse1497977219
  15. Bonnie McKeegan, LCSWClinical Social Worker1871990762
  16. Brooklyn McKennaDoula1205651619
  17. Cameron McLaren, CADC-IAddiction (Substance Use Disorder) Counselor1740616663
  18. Cindy McMahon, PA-CMedical Physician Assistant1124276142
  19. Suzanne McMaster, LCSWClinical Social Worker1659794782
  20. Paul McMillanCounselor1134658461
  21. Curtis McMullan, MFTIMarriage & Family Therapist1669595252
  22. Keniki McNeilRegistered Nurse1700335866
  23. Lin McNulty, JD, LCSWMental Health Counselor1184747099
  24. Maureen McNulty, P.T.Physical Therapist1619216868
  25. Marilynn McSeveneyMental Health Counselor1164750436
  26. Stacey McVicker, OQPAdult Companion1619277225
  27. Sarah MeadowsDay Training/Habilitation Specialist1811852338
  28. Andrea MedinaMarriage & Family Therapist1710227004
  29. Maria Ahleen Medina, DMDDentist1508206657
  30. Robert Meier, RPHPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1679935290
  31. Cara Meinholz, M.D.Emergency Medicine Physician1306846266
  32. Justin MelvinMental Health Counselor1205134426
  33. Yulisa MendezSocial Worker1437934254
  34. Keith Mercer, M.D.Ophthalmology Physician1568543049
  35. Sean MerrickMarriage & Family Therapist1770138190
  36. N. Merrill, LMFTMarriage & Family Therapist1477702439
  37. Paul Meyer, MFTMarriage & Family Therapist1568723724
  38. Sarah Michalak, RRWAddiction (Substance Use Disorder) Counselor1053622878
  39. Robert Michelin, M.D.Surgery Physician1154478055
  40. Cynthia Middaugh, CADC-IIAddiction (Substance Use Disorder) Counselor1891045696
  41. Diane MiesslerRegistered Nurse1639530363
  42. Mariya Milan, LMFTMarriage & Family Therapist1740983410
  43. Shayne MillardAddiction (Substance Use Disorder) Counselor1467814798
  44. Angela MillerRehabilitation Practitioner1578740957
  45. Joseph Miller, DMDGeneral Practice Dentistry1760615835
  46. Kurt Miller, RDRegistered Dietitian1801259726
  47. Walter Miller, MDInternal Medicine Physician1013985340
  48. Karen Milman, M.D.Public Health & General Preventive Medicine Physician1114998549
  49. Thomas Minch, D.M.D.General Practice Dentistry1417199514
  50. Kelly Miner-GannMental Health Counselor1891029005

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.