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 49 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. Whitney Hoang, FNP-CFamily Nurse Practitioner1053097857
  2. Lucy HobbyBehavior Technician1093609190
  3. Mia HobsonBehavior Technician1508668500
  4. Aaron Hochberg, M.D.Diagnostic Radiology Physician1639310055
  5. Brian Hockel, DDSDentist1033493101
  6. Kolbe HockelBehavior Technician1750092185
  7. Haley HockettBehavior Technician1376220467
  8. Stephanie Hocking, MDFamily Medicine Physician1225392616
  9. Gina HocklessSchool Psychologist1508697343
  10. William Hoddick, M.D.Diagnostic Radiology Physician1922038314
  11. Elaine HodgePhysical Therapist1063123586
  12. Kennadi HodgeMechanotherapist1275427072
  13. Valerie Hodgskiss, LMFTMarriage & Family Therapist1013392448
  14. Jillian Hoedt, R.DRegistered Dietitian1770829889
  15. Aida Hoekendijk, RNRegistered Nurse1538759915
  16. Rebecca HoellwarthBehavior Technician1285192146
  17. Danica HoeprichBehavior Technician1023519436
  18. Peter Hoffman, CMTMassage Therapist1386588911
  19. Jamie HofioniCase Manager/Care Coordinator1588148142
  20. Nanette Hogan, LMFTMarriage & Family Therapist1154520898
  21. Julia Hohman, M.D.Sports Medicine (Family Medicine) Physician1649327685
  22. Carolyn Hokanson, PHDClinical Psychologist1851452874
  23. Madeline HolbrookStudent in an Organized Health Care Education/Training Program1669226106
  24. Marni HolgateBehavior Analyst1861809634
  25. Paul Holland, M.D.Blood Banking & Transfusion Medicine Physician1740770916
  26. Danielle Hollander, MA, LMFTMarriage & Family Therapist1033611561
  27. Michele Holloway, RNGastroenterology Registered Nurse1255537734
  28. Brandon Holmes, D.C.Chiropractor1275527384
  29. Caitlin HolmesBehavior Analyst1164925657
  30. Michele HoltClinical Social Worker1144732892
  31. Ella Holton-McCoyBehavior Technician1659154268
  32. Noel Honeck, PH.D.Clinical Psychologist1851875322
  33. Molly Honegger, M.D.Diagnostic Radiology Physician1780648766
  34. Catherine HongBehavior Technician1174247001
  35. Irene HongBehavior Analyst1790292365
  36. Richard Hong, M.D.Vascular & Interventional Radiology Physician1487805362
  37. Tammy Hong, O.D.Optometrist1790753960
  38. Lara Honos-Webb, PH.D.Clinical Psychologist1548400393
  39. Magdalena-May HoodBehavior Technician1881351823
  40. Barbara Hooks, PSYDClinical Psychologist1376825604
  41. Natalie HooverBehavior Technician1518666171
  42. Sara HopkinMarriage & Family Therapist1417433913
  43. Brian Hopkins, MDUrology Physician1891793980
  44. Donna Hori, PHARMD.Pharmacist1053504100
  45. Dean Horn, RCP, RRT- ACCS, NPSCritical Care Registered Respiratory Therapist1215401476
  46. Nicole Hornage, LMFTMarriage & Family Therapist1306261078
  47. Danielle Horne, LPCCMental Health Counselor1881285633
  48. Samaya HornsbyBehavior Technician1932098761
  49. Monica Horowitz, PSY.D.Clinical Psychologist1033809439
  50. Joanna HorsfallBehavior Technician1376194076

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.