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 28 of 124.
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
- Epifanio Deleon, M.D.Internal Medicine Physician1124194907
- Javier Deleon, M.D.Internal Medicine Physician1598833790
- Michaela DeleonBehavior Technician1437846797
- Natalie Delfavero, MDFamily Medicine Physician1689258048
- Eva Delgado, BABehavior Technician1962033738
- Rosemary DelgadoObstetrics & Gynecology Physician1235140500
- Sarahi DelgadoBehavior Technician1639027386
- Monique Delisser, M.D.Internal Medicine Physician1578925087
- Jayrod Delos AngelesPhysical Therapy Assistant1487291423
- David Demartini, M.D.Ophthalmology Physician1437134855
- Gayle Dendaas, M.A. M.F.T. C.H.T.Marriage & Family Therapist1285867606
- Donald Dendinger, MPTPhysical Therapist1841402039
- Calvin Deng, MDInternal Medicine Physician1326126491
- Kenneth DenhardPharmacist1750655130
- Camille Denton, M.A.Behavior Technician1457652034
- Stephen Dentone, O.D.Optometrist1811026552
- Joann Depetro, M.A., MFTMarriage & Family Therapist1306274485
- Agnieszka Depinska, MS, RDRegistered Dietitian1275168684
- Stefanie DerrickBehavior Technician1295219335
- James Derum, PA-CPhysician Assistant1447355474
- Toral Desai, P.T.Orthopedic Physical Therapist1235361445
- Renee Desoucy, NPFamily Nurse Practitioner1558794909
- Ryann DesouzaMarriage & Family Therapist1043493042
- Robert Deutscher, M.D.Cardiovascular Disease Physician1467509299
- Margaret Devane, MSAudiologist-Hearing Aid Fitter1912051392
- Matthew Devane, DOCardiovascular Disease Physician1770511040
- John Deverman, D.D.S.General Practice Dentistry1487866265
- Michelle Devito, M.S. CCC-SLPSpeech-Language Pathologist1568607810
- Aubree Devree, MSWSocial Worker1215368618
- Whitney Dewalt, M.D.Obstetrics & Gynecology Physician1720382286
- Alexia DextreBehavior Technician1851265300
- Amrita Dhaliwal, MDInternal Medicine Physician1164500740
- Riaz Dhanani, MDDiagnostic Radiology Physician1770770257
- Shandeep DhillonBehavior Analyst1043889272
- Donna Di Cenzo, MDObstetrics & Gynecology Physician1710039524
- Alyssa Di Dio, M.S.Behavior Technician1457826117
- Julia Di Rienzo, MFTMarriage & Family Therapist1003056631
- Felisha DiasBehavior Technician1437812435
- Karen DiazClinical Social Worker1497239305
- Mikayla DiazBehavior Technician1114704434
- Ryan DiazBehavior Technician1356156210
- Rafael Diaz Flores, M.D.Surgery Physician1619056561
- Karla Diaz RodriguezBehavior Technician1154139822
- Judith Diaz SierraBehavior Analyst1891394151
- Natalie Dicks, IBCLC, RNCLactation Consultant (Registered Nurse)1164010948
- Cole DicksonAssistant Behavior Analyst1548723315
- April Diep, DOFamily Medicine Physician1871933895
- Christina Diep, DDSPediatric Dentistry1457882789
- Benjamin Dierauf, L.AC.Acupuncturist1164578811
- Keren Dietz Roberts, PMHNPPsychiatric/Mental Health Nurse Practitioner1487319786
The largest California cities
- Los Angeles69,537
- San Diego52,937
- San Francisco38,143
- Sacramento33,083
- San Jose20,925
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.