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 62 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. T'Maro Larry-CrozierBehavior Technician1619617586
  2. Ryan Larscheid, M.D.Ophthalmology Physician1952450066
  3. Erin LarsonBehavior Technician1336904382
  4. Kira Lass, RNAcute Care Clinical Nurse Specialist1740330661
  5. Kristen Lateiner, NPFamily Nurse Practitioner1972739498
  6. Billy Lau, PHARMDPharmacist1447819149
  7. Garrick Lau, MD, PHDAnesthesiology Physician1922172535
  8. Hanman LauPhysical Therapist1154847788
  9. Liana Lau, MDChild & Adolescent Psychiatry Physician1245895416
  10. Eric LautzAddiction (Substance Use Disorder) Counselor1306562897
  11. Michael LavariasBehavior Technician1528543113
  12. Robert Laverne, MDAnesthesiology Physician1154365666
  13. Simone LavieneCommunity Health Worker1912882077
  14. Arthur Law, M.D.Pediatrics Physician1629006515
  15. Ivianna LawBehavior Technician1316724123
  16. Philip Lawson, MFTIMental Health Counselor1992954028
  17. Tylesha LaxBehavior Technician1881361202
  18. Carol Layne, M.S.Speech-Language Pathologist1073798195
  19. Alyan LayugBehavior Technician1669172607
  20. Nancy Lazarus, LCSWClinical Social Worker1508055062
  21. Selena LazzarottoAdult Companion1912470006
  22. Amy Le, PHARMDPharmacist1245481191
  23. Billy LeBehavior Technician1306531447
  24. Catherine LeBehavior Technician1326998113
  25. Dang LeBehavior Technician1831802651
  26. Elaine Le, MDInternal Medicine Physician1912057720
  27. Judy Le, MDStudent in an Organized Health Care Education/Training Program1942051693
  28. Susan Le, DPTPhysical Therapist1104377951
  29. Timothy Leach, M.D. FACOGObstetrics & Gynecology Physician1356429534
  30. Jaime LeanoBehavior Analyst1073101606
  31. Andrew Leavitt, MDInternal Medicine Physician1487732582
  32. Aurora LeePhysician Assistant1609597186
  33. Christopher Lee, MDVascular & Interventional Radiology Physician1083826879
  34. Christopher Lee, L.AC.Acupuncturist1376866012
  35. Clarence Lee, PH.D.Clinical Exercise Physiologist1770092223
  36. Curie LeeBehavior Technician1881451359
  37. Debby Lee, RPHPharmacist1629797022
  38. Elise Lee, NP-CFamily Nurse Practitioner1336701853
  39. Elizabeth Lee, BSN, RN, CRNFARegistered Nurse First Assistant1518484187
  40. Hee Eun LeeFamily Medicine Physician1093463465
  41. Hyun Lee, MDInternal Medicine Physician1558449645
  42. Iting LeeAssistant Behavior Analyst1013491539
  43. Jimin Lee, O.D.Optometrist1346562659
  44. Joonoh LeeBehavior Technician1063207314
  45. Joshua Lee, M.D.Emergency Medicine Physician1912438664
  46. Judyth Lee, DMDPediatric Dentistry1699189431
  47. Julia Lee, DDSGeneral Practice Dentistry1568664472
  48. Kai Lee, MDNeurology Physician1720166556
  49. Kathy Lee, RDRegistered Dietitian1265329239
  50. Kenneth Lee, O.D.Optometrist1023168614

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.