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 46 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. Mariah HartBehavior Technician1740046333
  2. Judith Hartman, MDSpecialist1790785699
  3. Craig Hartstein, D.C.Chiropractor1558791855
  4. Stacia HartyStudent in an Organized Health Care Education/Training Program1336287259
  5. Chelsea HarvellBehavior Technician1386100253
  6. Charlene Harvey, OTR/LOccupational Therapist1548409386
  7. Jordan HarveyBehavior Technician1376238824
  8. Leeann Harvey, PH.D.Clinical Psychologist1124318613
  9. Terry Harvey, M.EDMental Health Counselor1669640546
  10. Shabren Harvey-Smith, LCSWClinical Social Worker1326137332
  11. Hannelore Harwood, NPWomen's Health Nurse Practitioner1063599272
  12. Salam Hasan, PA-CMedical Physician Assistant1841666443
  13. Lubna Hasanain, MDPediatrics Physician1750469847
  14. Hosnia HasaniBehavior Technician1790545614
  15. Safiullah HasaniBehavior Technician1831876929
  16. Kate HasselBehavior Technician1437949054
  17. Dorothy Hassler, MDPediatrics Physician1992883078
  18. Andrea Hata, N.P.Family Nurse Practitioner1992126965
  19. Olivia HatcherPhysician Assistant1407709926
  20. Christa Hattich, P.T.Orthopedic Physical Therapist1669417275
  21. Kalina HatzellBehavior Analyst1437633963
  22. Jordan Hauer-Laurencin, PAPhysician Assistant1417446717
  23. Karen Hauser, PAPhysician Assistant1609085760
  24. Ann-Elise HauskensMassage Therapist1770379059
  25. John Hawkins, DOPsychiatry Physician1730267824
  26. Jennifer Hayashi, P.A.Surgical Physician Assistant1184959033
  27. Aila HayattStudent in an Organized Health Care Education/Training Program1285562819
  28. Echalawn HayesBehavior Technician1841838083
  29. Margaux HayesBehavior Analyst1316448541
  30. Julie Haymes, CNMAdvanced Practice Midwife1710036710
  31. Matthew HaynesClinical Social Worker1225308711
  32. Shannon Haynes, DDS, INC.General Practice Dentistry1346283843
  33. Alon HaynesworthBehavior Technician1114643509
  34. Steve HazarabedianMarriage & Family Therapist1245378165
  35. Ashley Hazel, PHD, BCBA-DBehavior Analyst1245670256
  36. Barbara Hazleton, N.P.Women's Health Nurse Practitioner1619940806
  37. Ehsan Hazrat, MDFamily Medicine Physician1043564586
  38. Heidi Heal, PA-CPhysician Assistant1912967498
  39. Charles Hearey, MDPediatrics Physician1316025414
  40. Gabriella HeatonBehavior Technician1265191134
  41. David Heckenlively, MFTCounselor1861962870
  42. Linda Heckenlively, M.S., CCC-SLPSpeech-Language Pathologist1003294794
  43. Stephen Heckman, PH.D.Clinical Psychologist1417011735
  44. Nick Hedayat, D.C.Chiropractor1457529638
  45. Miles Hedgpeth, LMFTMarriage & Family Therapist1548639438
  46. Mia HedrickBehavior Technician1013788496
  47. Julienne Heene, O.D.Optometrist1194876987
  48. Margaret Hegg, MDInternal Medicine Physician1942388012
  49. Charlise HegwoodBehavior Technician1780225029
  50. Taban HeidarzadehBehavior Analyst1144798059

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.