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 15 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. Kar-Kit Butt, RPHPharmacist1831472174
  2. Kendall Butz, PHYSICIAN ASSISTANTPhysician Assistant1801575543
  3. Vitaliya BuynevichBehavior Technician1649823675
  4. Viktor Buzin, MPA, PA-CPhysician Assistant1790023620
  5. Cheyenne ByrdBehavior Technician1053027821
  6. Bonnie ByrneOrthopedic Physical Therapist1790262269
  7. Kevin Byrne, PASurgical Physician Assistant1306499272
  8. Nicholas Byrne, MDAnatomic Pathology & Clinical Pathology Physician1710191325
  9. Kathleen Byrne Crew, LCSWAddiction (Substance Use Disorder) Counselor1235282336
  10. Bonnie Cabasino, MS SPEECH PATHOLOGISSpeech-Language Pathologist1659420750
  11. Erin Cabezas, LCSWClinical Social Worker1003139650
  12. Kenneth CableBehavior Technician1326932369
  13. Sarah CableBehavior Technician1508528977
  14. Rebecca Cable Mengarelli, B.A.Behavior Analyst1780985424
  15. Rachael Cabreira, MSN-FNP-CFamily Nurse Practitioner1013047257
  16. Rhonna CaburianBehavior Technician1972474286
  17. Azari CadeBehavior Technician1467345934
  18. Lauren CademartoriBehavior Technician1033749528
  19. Steven Cademartori, D.D.S.General Practice Dentistry1154356111
  20. Michael Cadette, PA-CPhysician Assistant1689075236
  21. Sebastian CahillBehavior Technician1922825058
  22. Lai Fu Cai, L.AC.Acupuncturist1457431330
  23. Sarah CalabreseBehavior Technician1346923489
  24. Leo Calafi, MDOrthopaedic Surgery Physician1720079072
  25. Franchezka CalamaanBehavior Technician1861124281
  26. Preston CalandriBehavior Technician1083418529
  27. Joyce Caldeira, NCSP,LEP,LMFT,LPCCMarriage & Family Therapist1689728461
  28. Julie CalderBehavior Technician1639737844
  29. Alexis CalderonBehavior Technician1700517687
  30. Beyonce CalderonBehavior Technician1053259895
  31. Brooke Calderon, MFTMarriage & Family Therapist1215284211
  32. Destiny Calderon OrtizBehavior Technician1831854603
  33. Allyssa CalibosoRegistered Respiratory Therapist1669936175
  34. Nancy Calkin, PT,CHTPhysical Therapist1699833582
  35. Timothy Callahan, DDSGeneral Practice Dentistry1275633836
  36. Thomas Callan, ODOptometrist1043348394
  37. Christopher CallasBehavior Technician1669246989
  38. Elizabeth Callaway, D.C.Chiropractor1619238631
  39. Bryan CallejoMassage Therapist1902472657
  40. Devin Callister, M.D.Infectious Disease Physician1376856757
  41. Trixiemae CaloBehavior Technician1831074160
  42. Christiona CameronContractor1699005421
  43. Margaret Cameron, R.N, M.S.N.,N.P.Pediatric Nurse Practitioner1326149626
  44. Sarah Cameron, MDAnesthesiology Physician1689617243
  45. Randi Camicia, PHARMDPharmacist1023373289
  46. Beau CampaAudiologist1306454319
  47. Holly CampanaBehavior Technician1063153948
  48. Jennifer Campbell, MA, LMFTMarriage & Family Therapist1437966371
  49. Kaitlin Campbell, B.A.Behavior Analyst1467754556
  50. Kathleen CampbellMarriage & Family Therapist1336384361

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.