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 24 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. Antionette ReddrickLicensed Vocational Nurse1326583618
  2. John Reeder, MDPediatrics Physician1437193315
  3. Cody Reeves, M.D.Anesthesiology Physician1710943030
  4. Chelsea ReffnerAddiction (Substance Use Disorder) Counselor1396661401
  5. Anthony ReichmuthPeer Specialist1952972069
  6. June Reiersen, RADTAddiction (Substance Use Disorder) Counselor1841662939
  7. Katie Reinhardt IanniMarriage & Family Therapist1316320914
  8. Kristina Renn, PPSCSchool Counselor1962395061
  9. Eliza Renwick, 394589Addiction (Substance Use Disorder) Registered Nurse1871968180
  10. Alfred Ressel, RPHPharmacist1710261417
  11. Heidi RexCounselor1770944381
  12. Itzel ReynaCommunity Health Worker1598527137
  13. Gregory Reynolds, MDFamily Medicine Physician1790158848
  14. Sherri ReynoldsPharmacy Technician1023165156
  15. Charmaine Rhine, PTPhysical Therapist1326148248
  16. Marcus Rhodenhill, L.AC., PA-CMedical Physician Assistant1780892869
  17. Michael RiceMarriage & Family Therapist1720181670
  18. Diane Richards, REGISTERED NURSEAddiction (Substance Use Disorder) Registered Nurse1275902074
  19. Mark Richey, M.D.Diagnostic Radiology Physician1407876352
  20. Joel Richnak, M.D.Physical Medicine & Rehabilitation Physician1588762645
  21. Julie RiggsAddiction (Substance Use Disorder) Counselor1497935852
  22. Danelle Riles, LCSW, MSWClinical Social Worker1780918508
  23. Chantell Riley, LVNLicensed Vocational Nurse1770457509
  24. Justin Rivera, DPMFoot & Ankle Surgery Podiatrist1073960522
  25. Allison RiversClinical Social Worker1659241008
  26. Gracie RoathAdult Companion1821803909
  27. Angela RobertsLicensed Practical Nurse1114391588
  28. Ashley Roberts, LVNLicensed Vocational Nurse1316512189
  29. Erin RobertsMental Health Counselor1396128385
  30. Sarah Roberts, PT, DPT, CSCSPhysical Medicine & Rehabilitation Physician1053088906
  31. Virginia Roberts, PHARMDPharmacist1104900372
  32. Amanda RobertsenPeer Specialist1376331454
  33. Julia Robertson, MSWClinical Social Worker1356465959
  34. Heather Robinson, CMTMassage Therapist1801586243
  35. Lindsey Robinson, DDSPediatric Dentistry1164430559
  36. Lovina RobinsonSpecialist1609793751
  37. Nickolas Robinson, LVNLicensed Vocational Nurse1134867997
  38. Erin RobisonPeer Specialist1487366449
  39. Ashley RochaCommunity Health Worker1649969015
  40. Sean Rockwell, D.D.S.General Practice Dentistry1558451633
  41. Betsy Rodenbush, P.T.Physical Therapist1225438567
  42. Cassie Rodriguez, PAPhysician Assistant1750152393
  43. Erika Rodriguez, PPSSchool Counselor1073373445
  44. Monica Rodriguez-Bayes, O.D.Optometrist1952856122
  45. Richard Roehrkasse, MDGastroenterology Physician1083234017
  46. Jordynn RogersCounselor1285198853
  47. Robert RogersAddiction (Substance Use Disorder) Counselor1174857536
  48. Patricia Roholt, PTPhysical Therapist1144323197
  49. Brent RomanAddiction (Substance Use Disorder) Counselor1982527271
  50. Clarissa Rosario, CRNPFamily Nurse Practitioner1073915229

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.