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 122 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. Christina Yee, PHARM.DPharmacist1891036539
  2. Daniel Yee, PHARM.D.Pharmacist1174687842
  3. Kalle Yee, DOFamily Medicine Physician1700380060
  4. Lynn Yee, PHARM.DPharmacist1679621882
  5. Nicole Yee, M.D.Obstetrics & Gynecology Physician1942733720
  6. Russell Yee, PHARMDOncology Pharmacist1962780338
  7. Sara Yee, O.D.Optometrist1982804878
  8. Julie Yeh, MDAnesthesiology Physician1588692073
  9. Lisa Yeh, PHARM.D.Pharmacist1578994430
  10. Shabnam Yekta, M.D.Hospice and Palliative Medicine (Internal Medicine) Physician1932513744
  11. Maynard Yelo, PHARM.D.Pharmacist1245763903
  12. Hannah Yemane, MD MPHFamily Medicine Physician1659016996
  13. Chi Nan YenAcupuncturist1295598084
  14. Anthony YenkoPhysical Medicine & Rehabilitation Physician1356845820
  15. Richard Yep, PHARM.D.Pharmacist1174776983
  16. Kimberly Yerena AriasBehavior Technician1962265611
  17. Hasna YerrouBehavior Technician1770052813
  18. Orisetimeyin YesinBehavior Technician1962969162
  19. Kenneth YeungPharmacist1457883118
  20. Kevin Yeung, OTR/LOccupational Therapist1366937807
  21. Kain Yi, DDSGeneral Practice Dentistry1598882433
  22. Benjamin Yim, M.D.Neurological Surgery Physician1598176604
  23. Dorothy Tseng Yip, PA-CPhysician Assistant1558654301
  24. Julia Yip, DOEmergency Medicine Physician1326628009
  25. Roza YosiefNurse's Aide1235939869
  26. Jiwon Youm, M.D.Vascular & Interventional Radiology Physician1265876478
  27. Amanda YoungBehavior Technician1174007397
  28. Corinne Young, PSY.D.Clinical Neuropsychologist1598823494
  29. Daniel Young, MDInternal Medicine Physician1942388004
  30. Howard Young, MDVascular & Interventional Radiology Physician1457425738
  31. Melinda Young, M.D.Child & Adolescent Psychiatry Physician1700199643
  32. Meredyth Young, N.P.Nurse Practitioner1740209279
  33. Richard YoungMental Health Counselor1639489065
  34. Sequence YoungBehavior Technician1275388084
  35. Steven Young, M.D.Surgery Physician1659455103
  36. Jasmine Young-HallBehavior Technician1740784479
  37. Colton Yount, AA PSYCHOLOGYBehavior Technician1609547041
  38. Farah Yousif Samaan, PHARMDPharmacist1821893405
  39. Claire YraguiBehavior Technician1861909624
  40. Cristina YttrupNurse Practitioner1962086819
  41. Addison YuGeneral Practice Dentistry1396539193
  42. Alexandra YuBehavior Technician1215655212
  43. Daniel Yu, MDGastroenterology Physician1295813384
  44. Patrick Yu, LMFTMarriage & Family Therapist1962909465
  45. Robinson Yu, MDDiagnostic Radiology Physician1831464999
  46. San-San Yu, MDAnesthesiology Physician1831127505
  47. Vivian YuNurse Practitioner1255929980
  48. Xiaolin Yu, BABehavior Technician1205393758
  49. San Yuan, MDAnesthesiology Physician1487682910
  50. Fiona Yuen, M.D.Endocrinology, Diabetes & Metabolism Physician1649513599

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.