NPPES file of Aug 9, 2026

Doctors and health care providers in Rocklin, CA

1,575 individual NPPES records list a practice address in Rocklin, 141st of 812 California cities. The largest group is behavior technician: 671, 43% of the city's records, against 18% across California. Page 21 of 32.

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

The 8 largest groups in Rocklin

Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.

Rocklin in California

  • Rank in California141st of 812 cities by records
  • Share of the state0.2% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups52% of all records

Compared with California as a whole, Rocklin has 6.3× the state's share of massage therapist records and 0.35× its share of internal medicine physician records.

Providers in Rocklin, alphabetically

  1. Dylan NealPhysician Assistant1457024606
  2. Carl Neeley, D.C.Neurology Chiropractor1003941238
  3. Mercy NeelyPharmacist1073171807
  4. Nahom NegaBehavior Technician1528882461
  5. Madalyn NelsonBehavior Technician1669296885
  6. Melissa NelsonBehavior Technician1710798376
  7. Beatrice Mae NgoBehavior Technician1407552839
  8. Samantha NgoPhysician Assistant1790613651
  9. Keith Nguyen, DDSGeneral Practice Dentistry1295877223
  10. Lawrence Nguyen, D.D.S.General Practice Dentistry1790704278
  11. Michelle Nguyen, MOT,OTR/LOccupational Therapist1841845914
  12. Michelle Quyen Nguyen, NPNurse Practitioner1538712740
  13. Minh Nguyen, D.D.S.General Practice Dentistry1447390273
  14. Nhungdiana NguyenBehavior Technician1417593757
  15. Phuong Nguyen, DOCTOR OF PHARMACYPharmacist1245648567
  16. Thanh-Truc Nguyen, D.D.S.General Practice Dentistry1043350879
  17. Thomas Nguyen, PHARM.DPharmacist1144502345
  18. Thuy Rose Nguyen, DOFamily Medicine Physician1124258116
  19. Tracy NguyenPharmacist1699020065
  20. Vyvy Nguyen, PTPhysical Therapist1336717990
  21. Xuan-Loc Nguyen, DOFamily Medicine Physician1477949519
  22. Amy NickelPharmacist1730911678
  23. Maria NievesRehabilitation Practitioner1043648348
  24. Kian Nikdel, D.D.S., M.S.D.Endodontics1366992471
  25. Emilia NikolayevBehavior Technician1447023791
  26. Emi NogenBehavior Technician1740026855
  27. Destiny NolanBehavior Technician1104606508
  28. Cloie NormanBehavior Technician1548006661
  29. Rachel NortonOccupational Therapist1780010504
  30. Jeanette Nuno, CMTMassage Therapist1225711542
  31. Taylah NusserPhysical Therapist1063172799
  32. Patrick NwaukoniBehavior Technician1174220131
  33. Jared NyagolBehavior Technician1437804655
  34. Abigail NyeSpeech-Language Assistant1184418956
  35. Grace O'Brien, PA-CPhysician Assistant1184963928
  36. Andrea O'Donnell, M.S. CCC-SLPSpeech-Language Pathologist1033388582
  37. Caitlin O'Malley, PAPhysician Assistant1265100853
  38. Michelle O'Neill, SPEECH PATHOLOGISTSpeech-Language Pathologist1306312350
  39. Hope O'QuinnBehavior Technician1740074541
  40. Jennifer O'Toole, PTAPhysical Therapy Assistant1356083091
  41. Maximo OchoterenaBehavior Technician1932089604
  42. Mary OcumenBehavior Technician1649086547
  43. Carmileache OdenBehavior Technician1437953783
  44. Anenechukwu Ogbu, NONEBehavior Technician1588366769
  45. Carol Oliveras, SLPSpeech-Language Pathologist1659043081
  46. Karen OlivierMarriage & Family Therapist1457082398
  47. Joseph OlsenClinical Social Worker1134976616
  48. Marie OlsonBehavior Technician1093564320
  49. Kuo Ooi, M.D.Internal Medicine Physician1598775421
  50. Aamya OrejelBehavior Technician1508798216

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

Rocklin, California appears in the CMS National Plan and Provider Enumeration System with 1,575 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 Rocklin - 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 Rocklin 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 Rocklin is weighted toward Behavior Technician (671 clinicians, followed by Behavior Analyst with 81 and Marriage & Family Therapist with 67). 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, Rocklin 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, Student in an Organized Health Care Education/Training Program is the most prominent one with no provider currently listing a Rocklin practice address, a coverage gap Rocklin patients typically fill by traveling to a larger nearby hub.

For Rocklin 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 Rocklin, CA?

There are 1,575 registered healthcare providers in Rocklin, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Rocklin?

The most common specialties in Rocklin are Behavior Technician, Behavior Analyst, Marriage & Family Therapist, Pharmacist, Speech-Language Pathologist. Behavior Technician has the most providers with 671.

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.