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 100 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. Madeline SerbMarriage & Family Therapist1306649512
  2. Emily Serkin, PH.D.Psychologist1871518563
  3. Gabrielle SerranoBehavior Technician1912551482
  4. Glorence SerranoBehavior Technician1568009496
  5. Paola SerratosBehavior Technician1013802628
  6. Jason Servatius, N.D.Obesity Medicine (Preventive Medicine) Physician1063634822
  7. Rahul Seth, M.D.Plastic Surgery within the Head & Neck (Otolaryngology) Physician1073784682
  8. Parminder Sethi, M.D.Urology Physician1023041464
  9. Jessica Seul, RNRegistered Nurse1831682335
  10. Liz SeverinSpeech-Language Pathologist1033625306
  11. Cheri Sexton, SLPSpeech-Language Pathologist1124289772
  12. Lynn Shafer, M.D.Specialist1881643286
  13. Honai ShaghasiAssistant Behavior Analyst1962110411
  14. Karen Shagrin, PHARMACISTPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1962785170
  15. Amish Shah, M.D.Pulmonary Disease Physician1376920884
  16. Anjuman Shah, MS, RDNRegistered Dietitian1780161240
  17. Gita Shah, MABehavior Technician1619440385
  18. Naura Shah, PA-CSurgical Physician Assistant1417388711
  19. Nirav Shah, MDEmergency Medicine Physician1154409217
  20. Samir Shah, M.D.Ophthalmology Physician1922014851
  21. Saurin Shah, M.DThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1902062698
  22. Selina Shah, MDSports Medicine (Internal Medicine) Physician1205995958
  23. Shachi Shah, MDCardiovascular Disease Physician1053483883
  24. Shaily Shah, M.D.Ophthalmology Physician1518386663
  25. Sonika Shah, MDInternal Medicine Physician1366528895
  26. Takreem ShahBehavior Technician1043073612
  27. Darius ShahabBehavior Technician1245169143
  28. Mojgan ShahbaziBehavior Technician1891426698
  29. Abdoali Shahdawala, PHARMDPharmacist1154855294
  30. Mehzad Shahsavari, M.D.Urology Physician1952579591
  31. Samee Shahzada, M.D.Psychiatry Physician1831345784
  32. Olivia ShaiebBehavior Technician1902454945
  33. Atef Shaikh, D.OPsychiatry Physician1578908604
  34. Mahzabeen ShaikhPhysical Therapist1942621834
  35. Zahid Shaikh, M.D.Internal Medicine Physician1740441294
  36. Heidi Shale, MDNeurology Physician1639257116
  37. Sabian Shane, B.A.Behavior Analyst1477812337
  38. Stefanie Shanley, CCC-SLPSpeech-Language Pathologist1699233791
  39. Chandran Shanmugam, MDPediatrics Physician1467530527
  40. Amanda Shannon, OTROccupational Therapist1578307567
  41. Marissa Shannon, MFTMarriage & Family Therapist1124355631
  42. David Shapiro, MDAnesthesiology Physician1033147996
  43. David ShapiroEmergency Medicine Physician1518350131
  44. Jerald Shapiro, L.C.S.W. #5905Clinical Social Worker1144504523
  45. Mohsen SharifiBehavior Technician1730022468
  46. Gauri Sharma, D.O.Hematology & Oncology Physician1528234002
  47. Konark Sharma, M.D.Infectious Disease Physician1114975562
  48. Rishi Sharma, M.D.Gastroenterology Physician1992969281
  49. Rita Sharma, PA-CPhysician Assistant1184585796
  50. Rohit Sharma, MDNephrology Physician1427059344

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.