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 87 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. Jessica Pfisterer, AMFTMarriage & Family Therapist1578453361
  2. Stephanie Phalip, M.D.Internal Medicine Physician1497998595
  3. Mary Phalon, LMFTMental Health Counselor1245651868
  4. Binh Pham, RPHPharmacist1699843367
  5. Kim Pham, PHARMDPharmacist1811420649
  6. Mai PhamCertified Registered Nurse Anesthetist1669969440
  7. Peter PhamBehavior Technician1447734587
  8. Randolph PhamBehavior Technician1366038085
  9. Van Pham, O.D.Optometrist1558598946
  10. Jena PhanBehavior Technician1013770742
  11. Thomas Philbert, MDAnesthesiology Physician1265469688
  12. Mary Phillips, LMFTMental Health Counselor1780310672
  13. Samuel Phillips, LCSWClinical Social Worker1023949542
  14. Eddy Pho, MDDiagnostic Radiology Physician1821176991
  15. Malinee PhumiwasanaBehavior Technician1205693561
  16. Thomas Phuriphan, MDOrthopaedic Surgery Physician1902984099
  17. Cassandra PianettaMarriage & Family Therapist1356856934
  18. Shappelle PiazzaBehavior Technician1871395087
  19. Jimena Picciano, LMFTMarriage & Family Therapist1144831652
  20. David Piccinati, M.D.Family Medicine Physician1336574508
  21. Robert Picker, M.D.Psychiatry Physician1275574691
  22. Edward Pieczenik, L.C.S.W.Clinical Social Worker1003984063
  23. Karida Pieger, FNP-CFamily Nurse Practitioner1548877145
  24. Mark Piehler, MDAnesthesiology Physician1043398100
  25. Korey Pieper, D.P.T.Physical Therapist1093724726
  26. Amber Pierre, LMFTMarriage & Family Therapist1386077485
  27. Robert Pike, MEDICAL DOCTORAnesthesiology Physician1215965462
  28. Vincent Pillay, B.SC. PHARMPharmacist1205994589
  29. Joseph Pinckard, M.D.Specialist1932133998
  30. Maria Christina Pingol, RN, FNP-BCFamily Nurse Practitioner1235562380
  31. Katelyn Pini, PA-CSurgical Physician Assistant1316585730
  32. Nika PinitpanBehavior Technician1225538101
  33. Michael Pink, D.D.S.General Practice Dentistry1831232552
  34. Caitlyn PinneBehavior Technician1407426521
  35. Ross Pirkle, M.D.Internal Medicine Physician1184656688
  36. Negar Pirooz, ODOptometrist1003456112
  37. Mario Pisani, P.T.Orthopedic Physical Therapist1235562489
  38. Gianna PisciottoBehavior Technician1629843859
  39. Connor Pittman, DPTPhysical Therapist1669350260
  40. Saul Plascencia, PA-CPhysician Assistant1326612276
  41. R. Platt, M.D.Interventional Cardiology Physician1265430417
  42. Jacqueline Plaza-PicazoBehavior Technician1417763780
  43. Adelynn PliezBehavior Technician1447744404
  44. Brittany PlonyBehavior Analyst1073916516
  45. Mindy Plotkin, MDObstetrics & Gynecology Physician1588742050
  46. Stephanie Po, MDOphthalmology Physician1003994187
  47. Jeffrey Poage, MDAnesthesiology Physician1518995729
  48. Randall Joseph Poblete, MSPAS, MPH, PA-CPhysician Assistant1700225174
  49. Jana PochopPhysical Therapist1972647576
  50. Andrew Pojman, EDDPsychologist1265649727

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.