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 86 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. Earle Paynton, D.C.Chiropractor1952470916
  2. Hadley Pearson, MDDermatology Physician1306334586
  3. Kelly PearsonBehavior Technician1598272031
  4. Everett PeatanBehavior Technician1871488262
  5. Matthew Pecci, M.D.Sports Medicine (Family Medicine) Physician1699749754
  6. Eva Pecha, OTROccupational Therapist1689305179
  7. Lindsey Peck, BCBABehavior Analyst1114812823
  8. Valerie Peckham, LVNLicensed Vocational Nurse1417461773
  9. Stephanie PedenBehavior Technician1275012478
  10. Nadezhda Peeva, ASSOCIATE MFTMarriage & Family Therapist1588376222
  11. Alexander Pekurovsky, MDPain Medicine (Anesthesiology) Physician1386930600
  12. Rayna PelleyBehavior Technician1548876832
  13. Jonelle Donica Pelobello, NPFamily Nurse Practitioner1700510096
  14. Brian PenaBehavior Analyst1669100756
  15. Lysandra PenaBehavior Technician1396672242
  16. June Peng, MDSurgical Oncology Physician1124321252
  17. Alex PennDiagnostic Radiology Physician1972881159
  18. Valerie PennebakerSchool Psychologist1932039203
  19. Abigail PerezSpecialist1700516101
  20. Andrea PerezBehavior Technician1427911486
  21. Ariany PerezBehavior Technician1922943810
  22. Delaney PerezBehavior Technician1740811991
  23. Leslie PerezBehavior Technician1083186241
  24. Raquel PerezBehavior Technician1669088019
  25. Sonia Perez-QuezadaBehavior Technician1053184838
  26. Anthony Peri, DPTSports Physical Therapist1467304881
  27. Gabriella Perko Esteban, CNMMidwife1477252575
  28. Chi Perlroth, MDEmergency Medicine Physician1912111873
  29. Joshua Perlroth, M.D.Infectious Disease Physician1881807006
  30. Harmony PernaBehavior Technician1033939178
  31. Lauren Perotti, MAMental Health Counselor1750552121
  32. Hilary Perr, M.D.Pediatrics Physician1407887243
  33. Caroline Perry, MDNeurology Physician1548279821
  34. Courtney Perry, PA-CPhysician Assistant1275003204
  35. Jamee PerryBehavior Technician1396562138
  36. Daniel Pestana, D.D.S.Dentist1780609545
  37. Aaron PeterBehavior Technician1003637166
  38. Daniel Peters, PH.D.Psychologist1548312275
  39. Johannes Peters, MDAnesthesiology Physician1194752527
  40. Kate Petersen, PSY.DClinical Psychologist1780362814
  41. Colleen PetersonAudiologist1073938247
  42. Leah Peterson, AU.D.Audiologist1679357065
  43. Linda Peterson, CNMRegistered Nurse1477616118
  44. Marion Peterson, RN MFTRegistered Nurse1538280854
  45. Shannon Peterson, M.D.Psychiatry Physician1710197041
  46. John Petrini, D.D.S, M.S.Prosthodontics1679634679
  47. Nicole Petro, PA-CMedical Physician Assistant1134373392
  48. Stacey Petrowsky, MA, LMFTMarriage & Family Therapist1639729254
  49. David PfeiferDentist1609998269
  50. Elizabeth PfeifferBehavior Technician1780209817

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.