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 48 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. Larissa HerreraBehavior Technician1972136299
  2. Luiscarlos HerreraBehavior Technician1194514257
  3. Brian Hershey, MDAnesthesiology Physician1538188909
  4. Elizabeth Hertz, LMFTMarriage & Family Therapist1114321106
  5. Stephen Hesseltine, M.D.Diagnostic Radiology Physician1295762409
  6. Karamia HesterBehavior Technician1912729161
  7. Bradley Hetherington, RDHDental Hygienist1851644322
  8. Danielle Hetrick, LMFTMarriage & Family Therapist1700342409
  9. Megan HickeyBehavior Technician1396442935
  10. Molly HickeyBehavior Technician1003415225
  11. Nicole Hickey, M.D.Internal Medicine Physician1831417120
  12. Janet HicksPhysical Therapist1730427543
  13. Keishanna HicksBehavior Technician1639875396
  14. Lawren Hicks, M.D.Family Medicine Physician1619912680
  15. Michelle Hider, LMFTMarriage & Family Therapist1417357690
  16. Phalina HiepBehavior Technician1518597483
  17. Nina Higgins, M.D.Psychiatry Physician1083904023
  18. Samantha Hightower, B.A., M. ED., BCBABehavior Analyst1285189449
  19. Amanda Hill, MS, ATC, PESAthletic Trainer1063612794
  20. Andral HillBehavior Technician1679267918
  21. Denee HillCommunity Health Worker1346196136
  22. Ebony HillBehavior Technician1043878812
  23. Hunter HillBehavior Technician1225627557
  24. Kaliyah HillBehavior Technician1750118642
  25. Lashermanai HillBehavior Technician1700508975
  26. Toby Hill, HISHearing Instrument Specialist1366624926
  27. Waheeda Hiller, MDInternal Medicine Physician1689642233
  28. Jaqueline Himelfarb, NCSDoula1154004539
  29. Christopher HinesOrthotic Fitter1225225493
  30. Savannah HinesBehavior Technician1598404923
  31. Vera HinesBehavior Technician1154957553
  32. Kathryn HinkleBehavior Technician1740143403
  33. Munira Hirani, RPHPharmacist1134219694
  34. Carl Hirsch, O.D.Vision Therapy Optometrist1124098835
  35. Heidi HirsohnBehavior Analyst1194394783
  36. Allison Hirvonen, BABehavior Technician1952865479
  37. Elgin Hittell, MDAnesthesiology Physician1427094754
  38. Mark Hlavac, MDInternal Medicine Physician1255419354
  39. Delphine Ho, MDEmergency Medicine Physician1265510358
  40. Jason Ho, M.D.Orthopaedic Surgery Physician1124050653
  41. Joshua Ho, MDInternal Medicine Physician1326788514
  42. Joshua Ho, DPTPhysical Therapist1578449070
  43. Lan-Anh Ho, DDSGeneral Practice Dentistry1023621000
  44. Martin Ho, MDFamily Medicine Physician1932767829
  45. Paul Ho, M.DCardiovascular Disease Physician1730186677
  46. Paul Ho, MDVascular & Interventional Radiology Physician1740369404
  47. Regina HoStudent in an Organized Health Care Education/Training Program1154013126
  48. Kevin Hoang, MDPediatrics Physician1366947202
  49. Melinda Hoang, PHARM.D.Pharmacist1497804587
  50. Von Hoang, FNP-CFamily Nurse Practitioner1275921223

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.