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 6 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. Kristin AvicolliClinical Social Worker1922540491
  2. Alondra Avila-Diaz, BCABAAssistant Behavior Analyst1497462923
  3. Gloria AvilesBehavior Technician1427705789
  4. Nharendra Aviles LozanoBehavior Technician1538805304
  5. Albert AyalaBehavior Technician1588364533
  6. Destiny AyalaBehavior Technician1750117610
  7. Michelle Ayala RomoBehavior Technician1336818251
  8. Bobby Aycock, M.D.Plastic Surgery Physician1063567873
  9. Alysia Ayoub, MABehavior Technician1174207021
  10. Nardine Azab, MFTMental Health Counselor1417120106
  11. Ludy AzabacheBehavior Analyst1437766045
  12. Jessica Azer, LMFTMarriage & Family Therapist1982263497
  13. Ava AzevedoBehavior Technician1790521276
  14. Soheila Azghadi, MDRadiation Oncology Physician1952794455
  15. Michael AzizPharmacist1285123059
  16. Khaled Azizi, D.C.Chiropractor1669614426
  17. Nason Azizi, M.D.Internal Medicine Physician1538594973
  18. Tammi Bachecki, RNCritical Care Medicine Registered Nurse1366063158
  19. Marissa BachellerieBehavior Technician1235614694
  20. Michael Bachik, MDCardiovascular Disease Physician1790863876
  21. Trevor Bachmeyer, D.C.Chiropractor1215169222
  22. Ahmed BadawyPharmacist1336621655
  23. Ariel Badger, MDFamily Medicine Physician1285376608
  24. Paridhi BadjatiyaNurse Practitioner1700618998
  25. Jennifer Baek, ODOptometrist1174286637
  26. Giselle BaezStudent in an Organized Health Care Education/Training Program1750008355
  27. Melissa BaezBehavior Technician1760967681
  28. Behrokh BahrainiDentist1407469489
  29. Yali BaiBehavior Technician1801575980
  30. Eryn BaileyBehavior Technician1992562557
  31. Judith Bailey, MS RD CDERegistered Dietitian1083665483
  32. Mariel Bailey, MDInternal Medicine Physician1710415435
  33. Morgan BaileyBehavior Technician1073179107
  34. Sammie BaileyBehavior Technician1952145302
  35. Shawna BaileyGeneral Practice Registered Nurse1003742297
  36. Jessica Bailey-Pierre, LCSWClinical Social Worker1124509856
  37. Evan BaillieBehavior Technician1770239824
  38. Eric Bain, MDDiagnostic Radiology Physician1922047190
  39. Gagandeep Bains, MSAssistant Behavior Analyst1093347999
  40. Daniel John Bajada, M.P.T.Physical Therapist1447318381
  41. Tania Bajada, P.T.Physical Therapist1205947348
  42. Amaris Baker, ACSWSocial Worker1184231367
  43. Christopher BakerBehavior Technician1861378481
  44. Elizabeth BakerBehavior Technician1710672621
  45. Jennifer Baker, BCBABehavior Analyst1770864043
  46. Lauren Baker, OTRHand Occupational Therapist1114669322
  47. Macy BakerBehavior Technician1033697610
  48. Mary BakerPhysical Therapist1942843578
  49. Mary BakerBehavior Technician1346105020
  50. Michael Baker, M.D.Surgery Physician1043309008

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.