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 28 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. Nayab Sultan, MDHospitalist Physician1720737018
  2. Anthony Sunseri, RPSGTOther Specialist/Technologist1700275351
  3. Mihir Sura, MDHospitalist Physician1144575937
  4. Kristine SwansonMental Health Counselor1548995640
  5. Daisy Switzer, PH.D.Psychologist1124239660
  6. Jonathan TaitCounselor1225523913
  7. Andre TakahashiMental Health Counselor1336892983
  8. Darrell Takeoka, DDSDentist1487779302
  9. Jennifer TalleyMarriage & Family Therapist1669252920
  10. Hugh Talman, PTAPhysical Therapist1073085478
  11. Ryannah Tannarome, MFTMarriage & Family Therapist1659525806
  12. Lewis TarrLicensed Vocational Nurse1790281749
  13. Catherine TaylorMarriage & Family Therapist1164202479
  14. Jane TaylorCase Manager/Care Coordinator1447442967
  15. Sara Taylor, DPTPhysical Therapist1730657552
  16. Jane TenboerCounselor1073244240
  17. John Tendall, MDFamily Medicine Physician1427228253
  18. Yocelin TepezanoRegistered Nurse1336907278
  19. Shelby TerhorstCommunity Health Worker1053110122
  20. Kathy Terra, PHARMACY TECHNICIANPharmacy Technician1104564632
  21. Mark Thielen, MFTMarriage & Family Therapist1851545099
  22. Tucker ThiesingDay Training/Habilitation Specialist1962687681
  23. Monica ThigpenMental Health Counselor1215300710
  24. Andrew Thomas, MDOtolaryngology Physician1922340579
  25. Lizabeth Thomas, ODOptometrist1679311674
  26. Laurie ThompsonMental Health Counselor1174774178
  27. Seth ThompsonAdult Companion1144672973
  28. Steven ThompsonCase Manager/Care Coordinator1588025100
  29. Maria Thornton, PTPhysical Therapist1518398858
  30. Nancy Tibbetts, CNM, F-NPAdvanced Practice Midwife1871648196
  31. Kylie Timmerman, RNCommunity Health Registered Nurse1003418658
  32. Daniel ToberAddiction (Substance Use Disorder) Counselor1225496912
  33. Jessica TorryAdult Companion1730953514
  34. Sinaca-Ski TowlesBehavior Technician1184133886
  35. Bridget TozerCounselor1609462555
  36. Chau Tran, D.D.SDentist1891930467
  37. Daniel Trautman, BHSAdult Companion1972370690
  38. Cheryl Trenwith, MFTMarriage & Family Therapist1649494337
  39. Amber TretheweyAdult Companion1881152098
  40. Hai Truong, DMDEndodontics1588198386
  41. Kan Tsunoda, DMDOrthodontics and Dentofacial Orthopedics Dentistry1295069714
  42. Jamesha TuckerCounselor1770044554
  43. Leslie TullohMental Health Counselor1952812877
  44. Tony TullohCounselor1336758317
  45. Barry Turner, D.M.D.Dentist1245432988
  46. Damon TurnerMental Health Counselor1699196253
  47. Marissa TurnerSchool Social Worker1568385953
  48. Judith Tuttle, MFTMarriage & Family Therapist1154586949
  49. Robert Tuttle, MFTMarriage & Family Therapist1558526335
  50. Daneal UhlerCounselor1194250969

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.