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 61 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. Courtney LaBehavior Technician1659973667
  2. Christopher Labreche, BCBA # 1-16-23384Behavior Analyst1043794316
  3. Carolyn Lacey, M.D.Cardiovascular Disease Physician1295717411
  4. Nancy LachanceRegistered Nurse1518441690
  5. Sarah Laclergue, ACNP-BCAcute Care Nurse Practitioner1952642514
  6. Stephanie Lacount, LMFTMarriage & Family Therapist1952737256
  7. Anna LacourtBehavior Technician1851954929
  8. Etienne Lacrampe, D.M.D.Periodontics1952529661
  9. Clayton Laderer, PA-CPhysician Assistant1740664184
  10. Ilja Laduc, CNM, NPWomen's Health Nurse Practitioner1326423658
  11. Annie Lai, MDDiagnostic Radiology Physician1548202740
  12. Conrad Lai, M.DEmergency Medicine Physician1942248141
  13. Gloria LaiCertified Registered Nurse Anesthetist1871138990
  14. Tiffany Lai, FNPFamily Nurse Practitioner1295000578
  15. Patsorn LaikijrungNeurology Physician1164926150
  16. Eric LaitmanMarriage & Family Therapist1720943483
  17. Roopal Lalaji, PSYDClinical Psychologist1740397223
  18. George Lallian, MFTMarriage & Family Therapist1811798689
  19. Jeremy Lam, PHARMDPharmacist1235969320
  20. Kai Lam, MDPediatrics Physician1982756797
  21. Tien Lam, M.D.Family Medicine Physician1710917315
  22. Tenzing Lama, MD, MSCRESAnesthesiology Physician1710483201
  23. Audrey LamagnaAssistant Behavior Analyst1366160806
  24. Robert LambPharmacist1831622505
  25. Jessamy Lambert, PA-CMedical Physician Assistant1871853200
  26. Nicole LambertHearing Instrument Specialist1013310127
  27. Ryan LamonBehavior Technician1548903958
  28. Cortney Lamont, MSMarriage & Family Therapist1639991961
  29. Sophia LanBehavior Technician1831812163
  30. Karina LandaverdeBehavior Technician1063125490
  31. Roxana Landaverde NavarreteBehavior Technician1437001088
  32. Angela Landfair, M.D.Plastic Surgery Physician1043466410
  33. Bonnie Landfield, MFTMental Health Counselor1902054794
  34. Colleen Landry, M.D.Internal Medicine Physician1609080779
  35. Will Lane, M.D.Gastroenterology Physician1548244684
  36. Kelley Lang, PAPhysician Assistant1295218097
  37. Douglas Lange, M.D.Orthopaedic Surgery Physician1003865064
  38. Laurie Langer, LCSWClinical Social Worker1700076130
  39. Frances Langley, D.C.Sports Physician Chiropractor1831122209
  40. Sarah LangrockBehavior Technician1437854486
  41. Lillian Lanka, MDObstetrics & Gynecology Physician1104245711
  42. Suleiman Lapalme, MDPhysical Medicine & Rehabilitation Physician1932466778
  43. Alena Larios, DDS, MSOrthodontics and Dentofacial Orthopedics Dentistry1427620319
  44. Lucy Larkin, PTPhysical Therapist1932260148
  45. Sara Larkin, M.D.Emergency Medicine Physician1871760686
  46. Lori Larks, MFTMarriage & Family Therapist1811157423
  47. Bernard Larner, MDAnatomic Pathology & Clinical Pathology Physician1548341860
  48. Jennifer Larocque, D.D.S.Pediatric Dentistry1417140971
  49. Lauren Larrabure, MDDermatology Physician1699263087
  50. Ariana LarreaBehavior Technician1841006533

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.