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 44 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. Itzel GutierrezBehavior Technician1659250413
  2. Jonas GutierrezBehavior Technician1184475139
  3. Josephina GutierrezBehavior Technician1124725833
  4. Natali Gutierrez, MSWClinical Social Worker1053814731
  5. Nayeli GutierrezBehavior Technician1316707235
  6. Rudolph Gutierrez, D.C.Chiropractor1982876884
  7. Serena GutridgeBehavior Analyst1124740154
  8. Scott Guyon, MDEmergency Medicine Physician1487706602
  9. Ana GuzmanBehavior Technician1154162683
  10. Antonia GuzmanBehavior Technician1548024862
  11. Jacqueline GuzmanBehavior Technician1538044177
  12. Jamie GuzmanBehavior Technician1821945684
  13. Kayla GuzmanBehavior Technician1598522732
  14. Michelle GuzmanBehavior Technician1386405116
  15. Angelica Guzman PazBehavior Technician1306353081
  16. Jerry Gwilliam, DDSGeneral Practice Dentistry1265658751
  17. Smita Gyawali, PAPhysician Assistant1912358474
  18. Craig Gyory, MDOrthopaedic Surgery Physician1861570921
  19. Deborah Gyory, RN, CRNARegistered Nurse1609918788
  20. David HaAnesthesiology Physician1629452099
  21. Kit Ha, PHARM. DPharmacist1659804540
  22. Curtis Haake, D.C.Chiropractor1356563647
  23. Lisa Haas, CRNACertified Registered Nurse Anesthetist1982764379
  24. Debra Haber Zurita, LCSWClinical Social Worker1508982612
  25. Margaret Hacker-Pollack, PHDPsychologist1265596092
  26. Noushin Haddad-Tehrani, MDInternal Medicine Physician1215988878
  27. Payvand Hadjian, PHARMDPharmacist1417382342
  28. Alireza Hadjighafouri, RPHPharmacist1922201060
  29. Julie Hadley, RNFAMedical-Surgical Registered Nurse1821303439
  30. Alexandra HagertyBehavior Technician1144821240
  31. Liann Hagey, M.D.Pediatric Urology Physician1528181278
  32. Scot Hagey, MDUrology Physician1215015896
  33. Carolyn Hagspiel, BSBehavior Technician1659914778
  34. Eileen Hahn, PHYSICIAN ASSISTANTPhysician Assistant1861370264
  35. Janet Hahn, MDInternal Medicine Physician1841362654
  36. Kirk Hahn, MDPediatrics Physician1952489015
  37. Paris HahnBehavior Technician1013618636
  38. Salma Haider, DPMStudent in an Organized Health Care Education/Training Program1336713361
  39. Jasmine Hajyan, LCSWClinical Social Worker1720242613
  40. Kelly Hale, PTPhysical Therapist1447318506
  41. Robin Hale, CNMAdvanced Practice Midwife1063567519
  42. Taryn HaleBehavior Technician1467937375
  43. Richard HaliburtonNaturopath1336659713
  44. Catherine Hall, MFTMarriage & Family Therapist1588783161
  45. Daneka-Blanche HallBehavior Technician1063369833
  46. Jaiya HallBehavior Technician1710868187
  47. Nicole Hall, RBTBehavior Technician1154896066
  48. Zya HallBehavior Technician1609735075
  49. Laura Halpin, CNCNutrition Education Nutritionist1134612351
  50. Shannon Halpin, PT, DPTOrthopedic Physical Therapist1255520268

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.