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 16 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. Jacqueline KnackCommunity Health Worker1427873348
  2. Anastacia Knight, MSW, ASWMental Health Counselor1992121461
  3. Kelsey Kofoid, RADTAddiction (Substance Use Disorder) Counselor1760992846
  4. Audrey KoldenAdult Companion1841029808
  5. Camille Kolodjay, DPTPhysical Therapist1568716843
  6. Micah KonyhaCounselor1720691090
  7. Jacob Kopp, M.D.Internal Medicine Physician1073054409
  8. Stephen KozelAddiction (Substance Use Disorder) Counselor1295550911
  9. David Kraus, MDRadiation Oncology Physician1710987953
  10. Zoe Jade KrauseCounselor1346774031
  11. Mervin Kril, MDNeurological Surgery Physician1508051459
  12. Jessa Krissovich, CMTSpecialist1285941534
  13. Rene Kronland, MDFamily Medicine Physician1306057989
  14. Robert Krueger, LCSWClinical Social Worker1396920757
  15. Phillip Krulisky, RADTAddiction (Substance Use Disorder) Counselor1073214532
  16. Presley KrutiakMental Health Counselor1669958971
  17. Sharal Krzyzopolski, SUDCCAddiction (Substance Use Disorder) Counselor1154103828
  18. Michelle Kucera, DDSPediatric Dentistry1376612622
  19. Ganesh Kulkarni, M.D;Internal Medicine Physician1376807990
  20. Kelley KullRegistered Dietitian1508385873
  21. Joel Kyne, CADC-IIAddiction (Substance Use Disorder) Counselor1447628300
  22. Stacie La Jeunesse, CPNPPediatric Nurse Practitioner1053447870
  23. John Lace, M.D., F.C.C.P.Critical Care Medicine (Internal Medicine) Physician1104840461
  24. Catari LacorazzaOccupational Therapist1144017294
  25. Byron Lake, M.D.Family Medicine Physician1891832242
  26. Margaret LallyClinical Social Worker1538898150
  27. Coreen Lamark L.ac., L.ACAcupuncturist1659796464
  28. Joseph Lambert, M.D.Pediatrics Physician1649299959
  29. Patricia Lanegan, CADCAddiction (Substance Use Disorder) Counselor1891495461
  30. Frank Lang, M.D.Family Medicine Physician1417942939
  31. Julie Lang, MFTMarriage & Family Therapist1831224500
  32. Marsha LanierMental Health Counselor1528323862
  33. Catherine LansdonLicensed Psychiatric Technician1053433664
  34. Celeste LapedusCounselor1588256705
  35. Mark LaplanteAdult Companion1366361495
  36. Lora Larsen, CADC-II, LAADCAddiction (Substance Use Disorder) Counselor1114278322
  37. Zachary LarsenLicensed Psychiatric Technician1396602850
  38. Bryan LassegardCounselor1013474121
  39. Bruce Lattyak, M.D.Plastic Surgery Physician1629245238
  40. Sam Lautzenhiser, BADay Training/Habilitation Specialist1972420115
  41. Bonnie Lawrence, RRWAddiction (Substance Use Disorder) Counselor1114100450
  42. Kristin Lawrence, LPTLicensed Psychiatric Technician1699257683
  43. Jonathan Lawson, RN, BSN, CNORRegistered Nurse1942036918
  44. Julie Lay, RPHPharmacist1821182783
  45. Katie LaymanOther Specialist/Technologist1932065901
  46. Jenifer Layton, MS, LMFTMarriage & Family Therapist1689874281
  47. Kelley Lear, PTAPhysical Therapy Assistant1730526369
  48. Megan LearAddiction (Substance Use Disorder) Counselor1952895120
  49. Eui Lee, PHARMDPharmacist1770148983
  50. James Lee, DMDGeneral Practice Dentistry1295955177

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.