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 73 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. Stephanie MedranoBehavior Technician1548982234
  2. Denielle Medynski, DMDDentist1972729655
  3. Alexis MeeksSpecialist1184317588
  4. Malisa Meemari, MS, ATCAthletic Trainer1295199495
  5. Joshua Meezan, MDAnesthesiology Physician1053355396
  6. Zoe MefokaFamily Nurse Practitioner1871255968
  7. Ebonie MegibowDoula1811711310
  8. Kody MeginnesMarriage & Family Therapist1659690071
  9. Jaysheel Mehta, MDDiagnostic Radiology Physician1720166804
  10. Sonali Mehta, PHARM.D.Pharmacist1356403307
  11. Anthony Meixner, LMFTMarriage & Family Therapist1710470992
  12. Melissa MejiaAssistant Behavior Analyst1639713027
  13. Regina MejiaOrthotic Fitter1225225402
  14. Jahnavi Meka, MDStudent in an Organized Health Care Education/Training Program1457047110
  15. Elijah MekwunyeBehavior Technician1639922511
  16. Lindsay Melaas, LMFTMarriage & Family Therapist1821662727
  17. Jose MelchorBehavior Technician1164018917
  18. Joseph Mele, M.D., F.A.C.S.Plastic Surgery Physician1851388003
  19. Isabella Meli-SandovalBehavior Technician1205692357
  20. Anjelica MelialaBehavior Analyst1104536952
  21. Sarah Meltzer, PHARMDPharmacist1093189847
  22. Juliette MendezBehavior Technician1861261737
  23. Mikalia MendezBehavior Technician1427769314
  24. Nicole MendezBehavior Technician1205792603
  25. Travis MendezBehavior Technician1285357244
  26. Jacqueline Mendez RosasBehavior Technician1366301327
  27. Bianca MendozaBehavior Technician1932759081
  28. Jurethdia MendozaOther Technician1063996684
  29. Raquel Marie Mendoza, AUDAudiologist1982434668
  30. Evelyn Mendoza PartidaBehavior Technician1649071648
  31. Hannah Menise, RDNRegistered Dietitian1356195168
  32. Ariana MercadoBehavior Technician1336017847
  33. Daniel MercadoBehavior Technician1841898731
  34. Emily Merideth, RN-C, IBCLCLactation Consultant (Registered Nurse)1194321828
  35. Arianne MerinoBehavior Technician1689544066
  36. Leslie Merken, P.T.Orthopedic Physical Therapist1700985215
  37. Maxwell Merkow, MDNeurological Surgery Physician1194951723
  38. Emma MermilliodBehavior Technician1487581732
  39. Timmothy Merrigan, M.D.Family Medicine Physician1063442945
  40. Gina MerriwetherMental Health Counselor1881573624
  41. Joseph Mersol, MDDiagnostic Radiology Physician1730174293
  42. Veronika Mesheriakova, MDPediatric Adolescent Medicine Physician1871884999
  43. Connie Messineo-McCullar, LMFT 90573Marriage & Family Therapist1093172504
  44. Laura Metzdorff, L.AC.Acupuncturist1003133794
  45. Alexander Meyer, MDInterventional Cardiology Physician1639533359
  46. Lillian MeyerBehavior Technician1992586564
  47. Mary-Beth Meyer, LCSWClinical Social Worker1831377571
  48. Patricia Meyer, PH.D.Psychologist1073243838
  49. Angelica Meza, PAMedical Physician Assistant1386687945
  50. Kayla MezaDay Training/Habilitation Specialist1417793506

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.