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 35 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. Susan Fitzgerald, MDEmergency Medicine Physician1740332964
  2. York Fitzgerald, DDSGeneral Practice Dentistry1982790051
  3. Gregory Fitzgibbons, MA CCC-AAudiologist1538282595
  4. Valerie Fitzgibbons, MA CCCAAudiologist-Hearing Aid Fitter1003955147
  5. Mary Fitzhugh, M.S., CCC-SLPSpeech-Language Pathologist1306108170
  6. Margaret Flaherty, PTPhysical Therapist1255499166
  7. Robert Flaig, M.D.Orthopaedic Surgery Physician1386818102
  8. Elizabeth FlanneryPhysical Therapist1033556196
  9. Victoria Flavell, MDDiagnostic Radiology Physician1225116387
  10. Simony Fleshman, RNRegistered Nurse1912771395
  11. Shirley FlippinPharmacist1780119123
  12. Kari Flockoi, RNMarriage & Family Therapist1962776435
  13. Sue Flood, LCSWClinical Social Worker1053474924
  14. Sergio Florencio, DDS, DMSCProsthodontics1447685037
  15. Richard FlorentePhysical Therapy Assistant1518436070
  16. Claudia FloresBehavior Technician1326904525
  17. Consuelo Flores, PSY DRehabilitation Psychologist1982965091
  18. Fabiana FloresDoula1922977339
  19. Itzury FloresBehavior Technician1144158064
  20. Jared FloresBehavior Technician1871433490
  21. Jeffrey Flores, PT, DPTPhysical Therapist1639640956
  22. Laura FloresBehavior Technician1326813551
  23. Lester FloresBehavior Technician1073207924
  24. Mecca FloresBehavior Technician1114770096
  25. Sarah FloresBehavior Technician1598511271
  26. Taylor FloresBehavior Technician1104381391
  27. Linda FlowerPharmacist1730614884
  28. Samantha FlowerBehavior Technician1659875250
  29. Alycia FlowersBehavior Technician1952095408
  30. Nancy Floyd, MDGeneral Practice Physician1356670434
  31. Breanna FocklerBehavior Technician1235609256
  32. Linda Fodrini-Johnson, MFTMental Health Counselor1437269875
  33. Sean Foley, DPTPhysical Therapist1346015997
  34. Donna Foliart, M.D.Hospice and Palliative Medicine (Internal Medicine) Physician1205051687
  35. Haley Folta, PA-CPhysician Assistant1043802044
  36. Brenda Fonacier, REGISTERED DIETITIANRegistered Dietitian1356406706
  37. Audrey Fong, PHARM.D.Pharmacist1922170521
  38. Barry FongPharmacist1881126548
  39. Bryan Fong, MDOtolaryngology Physician1033297163
  40. Dennis Fong, M.D.Family Medicine Physician1356364871
  41. Jeannie Fong, PHARMDPharmacist1174055834
  42. Jeffrey Fong, PHARMDPharmacist1255797080
  43. Karen Fong, MDOtolaryngology Physician1548275068
  44. Karen FongDentist1336358696
  45. Katherine Fong, MDDiagnostic Radiology Physician1740368323
  46. Nicholas Fong, DOInternal Medicine Physician1053991711
  47. Patricia Fong, DPTPhysical Therapist1104253590
  48. Susan Fong, PHARM-DPharmacist1740712942
  49. Whallen Fong, R.PHPharmacist1245762533
  50. Christina Fonseca, M.D.Dermatology Physician1225222128

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.