NPPES file of Aug 9, 2026

Doctors and health care providers in Walnut Creek, CA

6,170 individual NPPES records list a practice address in Walnut Creek, 23rd of 812 California cities. The largest group is behavior technician: 1,764, 29% of the city's records, against 18% across California. Page 116 of 124.

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

The 8 largest groups in Walnut Creek

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

Walnut Creek in California

  • Rank in California23rd of 812 cities by records
  • Share of the state0.6% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups37.6% of all records

Compared with California as a whole, Walnut Creek has 3.5× the state's share of hospitalist physician records and 0.39× its share of mental health counselor records.

Providers in Walnut Creek, alphabetically

  1. Arthur Wagner, AMFTMarriage & Family Therapist1871421305
  2. Dayna Wagner, PPSSchool Counselor1326978867
  3. A. William Waibel, MDInterventional Cardiology Physician1992857700
  4. Dan Wajsman, MDAnesthesiology Physician1740226695
  5. Marybeth Wakefield, FNPNurse Practitioner1922420785
  6. Meredith Waldon, MBBSEmergency Medicine Physician1669714846
  7. Abdul Wali, MDHospitalist Physician1811037344
  8. Candace WalkerBehavior Technician1912560087
  9. Janette Walker, MDObstetrics & Gynecology Physician1831199280
  10. Jessi WalkerBehavior Technician1821560004
  11. Katherine Walker, PH.D.Psychologist1811055239
  12. Lisa Walker, PHARMDPharmacist1750928354
  13. Myeisha Walker, CNABehavior Technician1912540063
  14. Tina WalkerBehavior Technician1043808678
  15. Wayne Walker, D.D.S.General Practice Dentistry1386786366
  16. Emilie WallBehavior Technician1386277077
  17. Clarence Wallace GaltneyBehavior Technician1346724630
  18. Dorothy WallderPhysical Therapist1083755912
  19. Jonathan Waller, MD/MPHHospitalist Physician1801324264
  20. Ashley WallsCase Manager/Care Coordinator1346705308
  21. Mechelle Walls, BSBehavior Technician1174156798
  22. Dana Walsh, MFTMarriage & Family Therapist1255714044
  23. John Walsh, MDAnatomic Pathology Physician1164500260
  24. Jill Walson, MS CCC-SLPSpeech-Language Pathologist1184125866
  25. Miriam Walter, PSYDAddiction (Substance Use Disorder) Psychologist1700375599
  26. Diana WaltersBehavior Technician1619574019
  27. Ellen WaltersMarriage & Family Therapist1053393371
  28. Robert Walters, PHYSICAL THERAPISTPhysical Therapist1689310799
  29. Trisha Walters, PT, DPT, OCSOrthopedic Physical Therapist1033736939
  30. Wanda Waltman, PTPhysical Therapist1205969482
  31. Madeleine WaltonBehavior Technician1023586203
  32. Matthew Walvick, D.O.Internal Medicine Physician1114237732
  33. Lawrence Wanetick, M.D. F.A.C.S.Specialist1255411104
  34. Alexis Wang, MDUrology Physician1538663638
  35. Blake Wang, DMDOral and Maxillofacial Surgery (Dentist)1811507544
  36. Catherine Wang, O.D.Optometrist1528266582
  37. Janice Wang, D.D.S.Dentist1497961320
  38. Jeffrey Wang, MDDiagnostic Radiology Physician1316500150
  39. Jingjing WangBehavior Technician1851041016
  40. Kai Wang, DPTPhysical Therapist1366964165
  41. Kathryn Wang, DPTOrthopedic Physical Therapist1487798054
  42. Pei-Tsui Wang, MDHospitalist Physician1568541225
  43. Xin WangPharmacist1093248502
  44. Ying Wang, MDGastroenterology Physician1952836587
  45. Yubao Wang, M.D.Hematology & Oncology Physician1306942644
  46. Yuhao Wang, DOStudent in an Organized Health Care Education/Training Program1821936550
  47. Nicholas Ward, PSYDClinical Psychologist1063201051
  48. Susan Warda, SCHOOL PSYHCOLOGISTSchool Psychologist1003746371
  49. Judi Warehouse, MFTMarriage & Family Therapist1942352174
  50. Jane Warford, AUDAudiologist-Hearing Aid Fitter1710388012

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

Walnut Creek, California appears in the CMS National Plan and Provider Enumeration System with 6,170 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 Walnut Creek - 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 Walnut Creek 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 Walnut Creek is weighted toward Behavior Technician (1,764 clinicians, followed by Marriage & Family Therapist with 315 and Pharmacist with 239). 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, Walnut Creek reports roughly 15.8 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 Walnut Creek practice address, a coverage gap Walnut Creek patients typically fill by traveling to a larger nearby hub.

For Walnut Creek 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 Walnut Creek, CA?

There are 6,170 registered healthcare providers in Walnut Creek, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Walnut Creek?

The most common specialties in Walnut Creek are Behavior Technician, Marriage & Family Therapist, Pharmacist, Behavior Analyst, Internal Medicine Physician. Behavior Technician has the most providers with 1,764.

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.