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 38 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. Anastasia Galeeva, LMTMassage Therapist1043091846
  2. Aaron John GalendezBehavior Technician1245958248
  3. Katherine Gallagher, MDPediatrics Physician1689752776
  4. Stefanie GalvezSpecialist1417679598
  5. Esmeralda Galvez PaezBehavior Technician1508584087
  6. Estefani GamaBehavior Technician1164265567
  7. Sangeeta Gambhir, M.D.Diagnostic Radiology Physician1144213299
  8. Samantha GambleBehavior Technician1720621675
  9. Sara GambleNeurology Physical Therapist1467070052
  10. Samuel GamskyNeurology Physician1700442399
  11. Cheslyn Gan, O.D.Optometrist1417951120
  12. Sunil Gandhi, M.D.Diagnostic Radiology Physician1093757403
  13. Emily Gang, MDStudent in an Organized Health Care Education/Training Program1033903281
  14. Athena GarciaBehavior Technician1275356230
  15. Briley GarciaBehavior Analyst1275034373
  16. Bryanna GarciaBehavior Technician1184560658
  17. Claudia GarciaBehavior Technician1760088561
  18. Cortney GarciaBehavior Technician1245191907
  19. Danielle GarciaBehavior Technician1386304004
  20. David Garcia, MDPediatrics Physician1942756143
  21. Erica Garcia, BACommunity Health Worker1164079851
  22. Francisco GarciaBehavior Technician1568252997
  23. Gabriela GarciaBehavior Technician1952861643
  24. Gabriella GarciaBehavior Analyst1639018716
  25. Isabella GarciaBehavior Technician1710864665
  26. Kathleen Garcia, FNPFamily Nurse Practitioner1447352307
  27. Leticia GarciaBehavior Technician1578414975
  28. Luis GarciaBehavior Technician1417699489
  29. Madelyn GarciaFamily Medicine Physician1003558735
  30. Maylis GarciaOther Technician1568949519
  31. Ramon Ryan Garcia, MDFamily Medicine Physician1164840856
  32. Rosy GarciaMental Health Counselor1477716298
  33. Sheila GarciaMarriage & Family Therapist1639099047
  34. Sonia GarciaBehavior Technician1982461042
  35. Melissa Garcia-RuizBehavior Technician1760379697
  36. Alethea Gard'Ner, LCSWClinical Social Worker1316304785
  37. Roseana GardettoBehavior Technician1790315869
  38. Monica Gardner, FNPFamily Nurse Practitioner1063785426
  39. Noreen Gardner-Kalin, RNC,IBCLCLactation Consultant (Registered Nurse)1619568334
  40. Karsten Michello Garduce, FNPFamily Nurse Practitioner1437775418
  41. Mary Gargaro, LCSWClinical Social Worker1316004062
  42. Annette GaribayBehavior Technician1164271201
  43. Suleima GaribayBehavior Analyst1144785296
  44. Allison GarlandBehavior Technician1386562122
  45. Bridget Garrehy, P.A.Surgical Physician Assistant1710250865
  46. Steven Garske, RPTPhysical Therapist1730125030
  47. Anne Gartner, DOInternal Medicine Physician1952596181
  48. Hector GarzaCertified Respiratory Therapist1275098105
  49. Jenelle GarzaBehavior Technician1659081032
  50. Xavier GarzaBehavior Technician1740073055

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.