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 101 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. Smriti Sharma, MDPhysical Medicine & Rehabilitation Physician1356925135
  2. Vandana Sharma, M.D.Rheumatology Physician1528131588
  3. Michael Sharp, RPHPharmacist1750812301
  4. Viktoriya Sharp, M.D.Internal Medicine Physician1235378472
  5. Katherine Sharpe, LMFTMarriage & Family Therapist1225995301
  6. Lynne Shaw, PA-CPhysician Assistant1679670780
  7. Shaylitia ShawMental Health Counselor1407005267
  8. Janet Shea, PA-CInterventional Pain Medicine Physician1942032081
  9. Negar Sheibani, MDPediatric Critical Care Medicine Physician1295786077
  10. Ayesha SheikhBehavior Technician1689413742
  11. Lydia ShelnuttBehavior Technician1639662703
  12. Austin Shen, OTHand Occupational Therapist1376369165
  13. Emily ShephardBehavior Technician1720858111
  14. Caroline Sherbourne, MDDiagnostic Radiology Physician1124106620
  15. Prabjot ShergillBehavior Technician1801630025
  16. Eric Sherlock, MDIV, MA, AMFTMarriage & Family Therapist1407559750
  17. Michael Sherman, M.D., PHDHematology & Oncology Physician1164643359
  18. Yangjum SherpaBehavior Technician1285324111
  19. Ashlynn ShevlinBehavior Technician1326730722
  20. Jason Shey, MDNephrology Physician1336140250
  21. Elvin SheykhaniPsychologist1184064503
  22. Christine Shieh, MDGastroenterology Physician1013414465
  23. Crystal Shields, LMFT, LPCCMarriage & Family Therapist1245630201
  24. Lauri Shigio, O.D.Optometrist1346371960
  25. Ronald Shigio, O.D.Optometrist1174658983
  26. Mysore Shilpa, MDInternal Medicine Physician1750398897
  27. Joey ShinBehavior Technician1972148237
  28. Patrick Shipsey, M.D.Emergency Medicine Physician1821167545
  29. Shervine Shirazi, MDDiagnostic Radiology Physician1427136092
  30. Geraldine Shirzai, MDGynecology Physician1609404284
  31. Kelvin Shiu, D.O.Critical Care Medicine (Internal Medicine) Physician1073719381
  32. Perkin Shiu, MDCardiovascular Disease Physician1134375272
  33. Srinivasa Shivakumar, MDHospitalist Physician1487732558
  34. Anna ShmulevichBehavior Technician1952168593
  35. Anna Shorenstein, PSY.DClinical Psychologist1821155474
  36. Neal Shorstein, MDOphthalmology Physician1912085085
  37. Yvonne Shotwell, PTPhysical Therapist1427106756
  38. Astha ShresthaCase Manager/Care Coordinator1427772623
  39. Shreya ShresthaBehavior Technician1467382069
  40. Allison Shue, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1326310517
  41. Steven Shuff, D.D.S.General Practice Dentistry1245300508
  42. Jill Shugart, MFTMarriage & Family Therapist1134459373
  43. Linda Shui, N.P.Women's Health Nurse Practitioner1578683124
  44. Elizabeth Sibrack, M.D.Pediatrics Physician1538556873
  45. Lilly SiddiqiBehavior Technician1841163060
  46. Gaganjeet SidhuClinical Social Worker1497146591
  47. Gurbind Jussa Sidhu, MDFamily Medicine Physician1710560362
  48. Sonia Sidhu, NPNurse Practitioner1992532949
  49. Rose SiemersBehavior Technician1124946769
  50. Katherine Sieu, RN, NPAdult Health Nurse Practitioner1356591085

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.