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 77 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. Jason Moy, MDSurgery Physician1447468236
  2. Nancy Mozelsio, MDAllergy & Immunology Physician1114910551
  3. Mekenna Mroskey, N.P.Nurse Practitioner1134517303
  4. Theresa Mueller, RNGeneral Practice Registered Nurse1407649270
  5. Jakala MuhammadBehavior Technician1417818667
  6. Sharon Muhlenkort, PHDPsychologist1740589076
  7. Rebecca Mui, PHARMDPharmacist1508925777
  8. Alice Mukai, CRNACertified Registered Nurse Anesthetist1699946475
  9. Miriam MukasaBehavior Technician1295353746
  10. Uday Mukherjee, MDPsychiatry Physician1659457075
  11. Alka Mulakaluri, CMTMassage Therapist1245506757
  12. Saili MulgaonkarPhysical Therapist1811434178
  13. Cynthia Mullen, M.D.Gastroenterology Physician1013123140
  14. Mary Mullen-Tiras, M.F.T.Marriage & Family Therapist1023164472
  15. Rebecca MullerBehavior Technician1710462031
  16. Joseph Mullin, DDSGeneral Practice Dentistry1831301555
  17. Nancy Mullin, PSY.D.Clinical Psychologist1467835876
  18. Kevin Mun, MDStudent in an Organized Health Care Education/Training Program1982456323
  19. Ginay MunaBehavior Technician1942909536
  20. Maxine MundBehavior Technician1780347864
  21. Jaspreet Mundeir, N.D.Naturopath1669668406
  22. Austen MunozBehavior Technician1952128795
  23. Xochilt MunozBehavior Technician1033937545
  24. Fatima Munoz BolanosBehavior Technician1043000458
  25. Reagan MunsonPhysician Assistant1831704709
  26. Alexander MuokBehavior Technician1790247898
  27. James Mura, MDPain Medicine (Anesthesiology) Physician1881863215
  28. Mikiko Murakami, DOPain Medicine (Physical Medicine & Rehabilitation) Physician1659632339
  29. Mariel Muriel Pastrana, MDInternal Medicine Physician1538488580
  30. Alexi MurilloBehavior Technician1588363485
  31. Jiana MurilloBehavior Technician1558046649
  32. Allison Murphy, MDNeonatal-Perinatal Medicine Physician1689752263
  33. Geraldine Murphy, PHD, L.E.P., CHTSchool Psychologist1972285997
  34. Michael Murphy, MDOtolaryngology Physician1013964410
  35. Naomi Murphy, CCC-SLPSpeech-Language Pathologist1023932605
  36. Usha Chundru Murphy, M.D.Diagnostic Radiology Physician1174534341
  37. Snehal Murthy, MD, MSPediatrics Physician1417699810
  38. Subathra Murugaiah, M.DFamily Medicine Physician1134418916
  39. Akilandeswari MuruganathanSpecialist1861145484
  40. Nurit Mussen, PHDClinical Psychologist1083836209
  41. Syed Mustafa, M.D.Internal Medicine Physician1972750123
  42. Christopher Mutch, MDDiagnostic Radiology Physician1447539614
  43. Ralph Mutchler, M.D.Diagnostic Radiology Physician1114965654
  44. Margaret Mutio, PT CHTPhysical Therapist1871644286
  45. Carollyn MwambaBehavior Technician1326696675
  46. Esther MwangiDoula1174495113
  47. Charlie MyersAcute Care Nurse Practitioner1164190385
  48. Chelsea Myers, RBTBehavior Technician1447749254
  49. Katherine Myers, LCSWClinical Social Worker1316230568
  50. Melinda Myers, MDSpecialist1194722702

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.