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 68 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. Dulce MaciasBehavior Technician1427646108
  2. Gabriella MaciasBehavior Technician1922732023
  3. Karina Macias AyalaBehavior Technician1417686551
  4. Linda MackGastroenterology Registered Nurse1427254994
  5. Lindsey MackeBehavior Technician1760952832
  6. Allora Macmahon, RDRegistered Dietitian1154486504
  7. Thomas Macpherson, MDSurgery Physician1366520454
  8. Shabnam Madani, MDDermatology Physician1972681476
  9. Mya MaddoxAssistant Behavior Analyst1891493680
  10. Trinity MaddoxBehavior Technician1982456919
  11. Julia MadduxBehavior Technician1053125971
  12. Katherine Mader, PA-CPhysician Assistant1730416066
  13. Rohan MadhokBehavior Technician1689357907
  14. Kuumba Madison, LPT, RADT IIAddiction (Substance Use Disorder) Counselor1265001861
  15. Mikee MadlangbayanSocial Worker1629401559
  16. Christina MadlenerMarriage & Family Therapist1164578324
  17. David Madnick, MDCardiovascular Disease Physician1770102535
  18. Yvonne Madrid, BSBehavior Technician1013534742
  19. Laura MadsenBehavior Technician1184315459
  20. Analiyah MaestasBehavior Technician1487510137
  21. Astra Maestas, PSY.D.Clinical Psychologist1467850776
  22. Kelly Maeyama, M.ED., BCBABehavior Analyst1841672458
  23. Meredith Maffeo, MS, CCC-SLPSpeech-Language Pathologist1811265838
  24. Jessica Magallon, MS, BCBA 1-19-39470Behavior Analyst1093210494
  25. Stefanie Magalong, LPCCProfessional Counselor1124499025
  26. Alejandra MaganaBehavior Technician1912564956
  27. Melanie MagdalenoBehavior Technician1841094547
  28. Gil Magilen, PH.D.Hearing Instrument Specialist1609066281
  29. Reynald MagnayePharmacist1851677116
  30. Lynna MagnusonCounselor1205588860
  31. Helen MahPharmacist1679005334
  32. Meadine Mah, O.D.Optometrist1770633620
  33. Margaret MahaffaEmergency Medicine Physician1215557426
  34. Malika MahannaMarriage & Family Therapist1346915857
  35. Ranika Maharaj, FNP-CFamily Nurse Practitioner1114750171
  36. Simran MaharajBehavior Technician1619755626
  37. Abdul MahboobiBehavior Technician1023966777
  38. Tabasam MahboobiBehavior Technician1396684403
  39. Andrew Maher, MDAnesthesiology Physician1649320458
  40. Mark Maher, DDSGeneral Practice Dentistry1306823539
  41. Camille-Marie Mahood, M.A., LMFTMarriage & Family Therapist1598915647
  42. Jeffrey Maier, MDMaternal & Fetal Medicine Physician1932287034
  43. Meagan MaileBehavior Technician1427519594
  44. Antoinette Maita, MFTMarriage & Family Therapist1437308053
  45. Heena Majmudar, MDHospitalist Physician1356415665
  46. Angela Malatesta, NPFamily Nurse Practitioner1649554627
  47. Elanna MalbergBehavior Technician1225909518
  48. Shruta MalgaonkarPharmacist1972167591
  49. Arti Malhotra, BABehavior Technician1447720545
  50. Bhavna Malik, MDInfectious Disease Physician1437231537

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.