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 69 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. Irrum MalikBehavior Technician1578377891
  2. Giselle Malina, MDEmergency Medicine Physician1093344343
  3. Lakshmi Sowjanya Mallela, MDInternal Medicine Physician1215282207
  4. Brianna MallonPhysical Therapist1831952134
  5. Kathleen Malone, M.A.Marriage & Family Therapist1487054748
  6. Michael MaloneyAnesthesiology Physician1902169634
  7. Lucio MalpicaBehavior Technician1699426247
  8. Ketaki MalshePhysical Therapist1578035747
  9. Leizel Mamaradlo Enerio, NPFamily Nurse Practitioner1144020439
  10. Georgine Manasan, B.S.Behavior Technician1578119483
  11. Diya Manavalan, PHARMDPharmacist1326685413
  12. Kelly ManciaPsychologist1396052429
  13. Janibel Mandap, PA-CPhysician Assistant1629411145
  14. Julia MandapatPhysical Therapy Assistant1871474965
  15. Janet Manfield, LMFTMarriage & Family Therapist1770724668
  16. Roxanna Manfredi-Giammona, LICENSED CLINICAL PSPsychologist1750044137
  17. Rujuta Manghani, MDInternal Medicine Physician1083792154
  18. Diana ManginBehavior Technician1295370047
  19. Hibah ManiarBehavior Technician1437795291
  20. Alexandra Jean ManiegoBehavior Technician1275387151
  21. Manisha Manmohan, M.D.Dermatology Physician1255866745
  22. Marissa Mannina, PHD, LPClinical Psychologist1790922532
  23. Kathleen Manning, MDSurgery Physician1437290038
  24. Colin Mansfield, M.D.Sports Medicine (Orthopaedic Surgery) Physician1275812059
  25. Grant MansonBehavior Technician1770209306
  26. Maria Allyson Manuel, M.A./BCBABehavior Analyst1235513821
  27. Sheenarose ManuelBehavior Technician1750884722
  28. Levy Jo Manuntag, MDHospice and Palliative Medicine (Internal Medicine) Physician1932696846
  29. Elise Manzanillo, NPNurse Practitioner1043095250
  30. Angelica Manzo, BCBABehavior Analyst1881180289
  31. Natalie ManzoBehavior Technician1396614731
  32. Andrea Mar, MA, MFTMarriage & Family Therapist1497907836
  33. Collin Mar, MDDiagnostic Radiology Physician1538247622
  34. Susan MarPharmacist1972035327
  35. Marian MaradiagaBehavior Technician1710605712
  36. Richard Marasco, DDSGeneral Practice Dentistry1407297898
  37. Madelyn MarceauBehavior Technician1124861109
  38. Mariya MarchenkoBehavior Technician1023766458
  39. Lorraine Marcinkowski, P.T.Physical Therapist1598987554
  40. Antonio Margiotta, DMDDentist1447278775
  41. Frances Anne MarianoBehavior Analyst1952912453
  42. Naomi Lizelle Mariano-GadgodeBehavior Analyst1689150906
  43. Allison MaritzBehavior Technician1205699675
  44. Sara Mark, MDObstetrics & Gynecology Physician1417035924
  45. Siobhan Mark, MS CCC-SLPSpeech-Language Pathologist1487141974
  46. Thomas Markiewith, P.A.Surgical Physician Assistant1427086149
  47. Robert Marks, DDSPeriodontics1265467518
  48. Sara Marks Brown, MADoula1801484290
  49. Elizabeth Marlow Lehrburger, M.D.Retina Specialist (Ophthalmology) Physician1336568815
  50. Estelita Marquez Floyd, MDChild & Adolescent Psychiatry Physician1194854935

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.