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 105 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. Debbie Sousa Hull, RD, CDERegistered Dietitian1013567429
  2. Julie Souza, DCChiropractor1144391095
  3. Rebecca Souza, LMFTMarriage & Family Therapist1154686269
  4. Kayla Souza-CrewsBehavior Analyst1093308082
  5. Lauren Spampinato, PHD, LPClinical Psychologist1235751603
  6. Megan SparrowSpeech-Language Assistant1902668411
  7. Leah SparroweSocial Worker1003380932
  8. Oana Spataru, M.D.Vascular Neurology Physician1518153824
  9. Aimee Spaulding, RN, IBCLCLactation Consultant (Registered Nurse)1790389997
  10. Elisabeth Specht, MDDiagnostic Radiology Physician1083792170
  11. Edward Speck, RPHPharmacist1568901692
  12. Charlene Spencer, M.D.Hospitalist Physician1821037367
  13. Duane Spencer, DDSPediatric Dentistry1992847289
  14. Jason Spenser, LCSWClinical Social Worker1396891651
  15. Renae Spera, FNP-BCFamily Nurse Practitioner1609669522
  16. Rose SpielmanBehavior Technician1821922006
  17. Angelia SpikesAddiction (Substance Use Disorder) Counselor1558003087
  18. Steven Spinetti, PHARMDPharmacist1871661256
  19. Olivia SpinosaSpeech-Language Pathologist1053199471
  20. Irina Spivak, PA-CPhysician Assistant1831417252
  21. Jacob Spivak, MDSurgery Physician1649306283
  22. Jacob SpivockBehavior Technician1588421036
  23. Karen Spizer, MDInternal Medicine Physician1043384365
  24. Purnima Sreenivasan, M.D.Geriatric Medicine (Family Medicine) Physician1578754362
  25. Deepa Sridhar, DOStudent in an Organized Health Care Education/Training Program1205522901
  26. Gopika SridharBehavior Technician1588540124
  27. Helen Stacey, MDInternal Medicine Physician1821235425
  28. Sarah Stack, MDPediatric Cardiology Physician1437473097
  29. Katharina StahlBehavior Technician1598582611
  30. Michaela Stahl, DDSGeneral Practice Dentistry1043445919
  31. Alyanna StampBehavior Technician1598536708
  32. Lisa Stamp, RPTPhysical Therapist1114082666
  33. Johnna StandleyMental Health Counselor1104174671
  34. Mariya StanglMental Health Counselor1578908695
  35. Alana Stark, PSY.D.Clinical Neuropsychologist1528438314
  36. Samantha Starr, B.A. PSYCHOLOGYBehavior Technician1245706886
  37. Julie StatnerBehavior Technician1083203418
  38. Mary Staunton, MDPsychiatry Physician1386722460
  39. Brian Steber, MDFamily Medicine Physician1548202997
  40. Dale Steele, D.D.S.General Practice Dentistry1992864888
  41. Benjamin Stein, PTPhysical Therapist1952949976
  42. Gary Stein, MDFamily Medicine Physician1750633145
  43. Michael Stein, MDNeurology Physician1467559450
  44. Jonathan Steinberg, D.P.M.Podiatrist1295833671
  45. Teresa Steinkirchneranderson, MDAnatomic Pathology Physician1164500252
  46. Angel Jaycob StempleBehavior Technician1740165505
  47. Hanna StensbyMarriage & Family Therapist1023471364
  48. Raymond Stephens, MDNeurology Physician1629036140
  49. Cynthia Stephenson, DDSDentist1689792368
  50. Marilyn Steppe, MDInternal Medicine Physician1558411363

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.