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 20 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. Lindsay Cheng, MDDiagnostic Radiology Physician1861570913
  2. Qi-Lin Cheng, MDAnatomic Pathology Physician1346312188
  3. Shao-Ying ChengAcupuncturist1679229744
  4. Steve Cheng, MDGastroenterology Physician1245318328
  5. Andreux Chernne, MDHospitalist Physician1578520003
  6. Daniel CherryDriver1528255593
  7. Daniel CheungPharmacotherapy Pharmacist1760570428
  8. Eric Cheung, PHARM DPharmacist1598817132
  9. John CheungPharmacist1124550900
  10. Ka Ling (karin) Cheung, M.D.Pulmonary Disease Physician1881643831
  11. Lisa Cheung, RDRegistered Dietitian1770603201
  12. Melissa Cheung, PHARM.D.Pharmacotherapy Pharmacist1407917750
  13. Nathan CheungPharmacist1174927347
  14. Robert Cheung, O.D.Optometrist1649251232
  15. Brijet Chew-Hampton, LVNLicensed Vocational Nurse1326997321
  16. Bela Chheda, M.D.Infectious Disease Physician1790717049
  17. Sylvia Chi-Wu, MDNephrology Physician1144308230
  18. Angela Chiang, MDAnesthesiology Physician1932287026
  19. Victoria ChigbuPsychiatric/Mental Health Nurse Practitioner1659078426
  20. Danica ChildersBehavior Technician1568241321
  21. Aaron Chin, M.D.Surgery Physician1093163271
  22. Audrey ChinBehavior Technician1295699791
  23. Brian Chin, MDSurgery Physician1750347100
  24. Gregory Chin, MDOtolaryngology Physician1710056924
  25. Jane Chin, PHARM.DPharmacist1770824633
  26. Kimberly ChinBehavior Technician1124580659
  27. Matthew Chin, M.D.Gastroenterology Physician1629397351
  28. Min ChinBehavior Technician1700411121
  29. Samantha Chin, M.DEmergency Medicine Physician1588027569
  30. Spencer Chin, PT, DPTPhysical Therapist1780289389
  31. Staci ChinBehavior Technician1497574495
  32. Stephanie Chin, PA-CPhysician Assistant1902936115
  33. Tritia Kristin Chinchilla, LMFTMarriage & Family Therapist1265848022
  34. Michaela Ching, DDSGeneral Practice Dentistry1770073249
  35. Jacob Chinn, L.AC, MSTCMAcupuncturist1649546292
  36. Anita Chiu, M.D.Surgery Physician1740426618
  37. Kailey ChiuBehavior Technician1588447767
  38. May Chiu, MDNephrology Physician1407857329
  39. Stephanie Chiu, NPNurse Practitioner1043091663
  40. Yunwen Chiu, PHARMDPharmacist1760866859
  41. Christina ChoEndodontics1629649462
  42. Elizabeth Cho, M.D.Emergency Medicine Physician1124288238
  43. Hyun Jin Cho, PHARM. D.Pharmacist1225197353
  44. John Cho, M.D.Family Medicine Physician1609816107
  45. Reena Cho, FNPFamily Nurse Practitioner1033480074
  46. Sung Cho, MDVascular Surgery Physician1710065826
  47. Wooyong Cho, AU.DAudiologist1386484715
  48. Yuet Yee ChoAudiologist1730918988
  49. Alice Choi, APNNurse Practitioner1861852717
  50. Allen Choi, LCSWClinical Social Worker1013692722

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.