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 92 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. Jimmie ReyesBehavior Technician1457245466
  2. Jaylyn ReynoldsBehavior Technician1861051013
  3. Jennifer Reynolds, OTR/LOccupational Therapist1568897759
  4. Joan Reynolds, M.D.Diagnostic Radiology Physician1245276450
  5. Jodi Reynolds, P.A.Physician Assistant1063629111
  6. Shenandoah Reynolds, LMFTMarriage & Family Therapist1528384104
  7. Carmen Rhodes, BSBehavior Technician1871123802
  8. Caitlin RiceBehavior Technician1932983806
  9. Myranda RichBehavior Technician1316500093
  10. Philip Rich, MDDiagnostic Radiology Physician1023003126
  11. Martha Richards, PNPPediatric Nurse Practitioner1700084753
  12. Douglas Richardson, MDAnesthesiology Physician1588742613
  13. Elisha RichardsonBehavior Technician1376043844
  14. Joyce Richardson, P.T.Orthopedic Physical Therapist1649208414
  15. Lori Richardson, CRNACertified Registered Nurse Anesthetist1295881647
  16. Alec Richmond, M.D.Emergency Medicine Physician1851487672
  17. Radha RichmondSchool Psychologist1861234460
  18. Tomia RicksBehavior Technician1053070185
  19. Diane RicoBehavior Technician1487214110
  20. Wilfred Rico, MDEmergency Medicine Physician1790984730
  21. Madeleine RidlBehavior Technician1023649183
  22. John Riedel, MDOphthalmology Physician1205892825
  23. Charles Rieder, MDVascular Surgery Physician1104978329
  24. Monique Riggins, RCP, RRTRegistered Respiratory Therapist1184188302
  25. Rosemary RiggsBehavior Technician1962079475
  26. Nann RigoliAssistant Behavior Analyst1588139471
  27. Marvi Rijhwani, M.D.Internal Medicine Physician1386039873
  28. Meena Rijhwani, M.D.Internal Medicine Physician1316952799
  29. Christine Riley, M.D.Obstetrics & Gynecology Physician1194713834
  30. Lindsey Riley, PTOrthopedic Physical Therapist1750865366
  31. Kara Riley-Paull, MDVascular Surgery Physician1083792188
  32. Edgardo RiosBehavior Technician1366029027
  33. Komal Rishi, M.D.Internal Medicine Physician1336332816
  34. Elizabeth RisnerMassage Therapist1447719331
  35. Wendy Ritchey, PH.D.Psychologist1750588638
  36. Anna Ritner, L.AC., FABORMAcupuncturist1114321387
  37. Gina Ritorto, MA, PPSMarriage & Family Therapist1215778287
  38. Kalden Ritschel-AukatsangBehavior Technician1457906752
  39. David Ritvo, M.D.Psychiatry Physician1205832094
  40. Marina RivasBehavior Technician1881278471
  41. Lizbeth Rivas-BacheminBehavior Technician1639921562
  42. Gilleann Rivera, APRNFamily Nurse Practitioner1467234500
  43. Mireya Rivera, B.S.Behavior Technician1851861967
  44. Victoria Rivera, MA, MFTMarriage & Family Therapist1558425835
  45. Giselle Rivera CurielBehavior Technician1649052895
  46. Katherine Rivera FrancoBehavior Technician1790346385
  47. Ethan RizzoBehavior Technician1104678739
  48. Madison RoBehavior Technician1174111868
  49. Margaret Robbins, L.C.S.WClinical Social Worker1629259767
  50. Rupa Robbins, PH.D.Clinical Child & Adolescent Psychologist1588283741

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.