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 111 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
- Napeena ToorSpeech-Language Pathologist1427238971
- Brian Topkis, M.D.Ph.D. Medical Genetics1265524706
- Alexander TorresBehavior Technician1467313775
- Anna Torres, NPNurse Practitioner1447851324
- Joanna TorresBehavior Technician1134851496
- Joseph Torres, P.A.Surgical Physician Assistant1710915228
- Melissa TorresBehavior Technician1033813977
- Nathalie TorresBehavior Technician1043903156
- Nicole TorresBehavior Technician1124681077
- Reesa TorresBehavior Technician1306526918
- Michael Torrest, MDEmergency Medicine Physician1750460887
- Billy TorrezOccupational Therapist1518122415
- Louis ToscanoBehavior Technician1972384824
- Kathleen Toups, M.D.Psychiatry Physician1396873196
- Tiziana Towle, DDS 48391 DENTISTGeneral Practice Dentistry1093104804
- Arianna ToyBehavior Technician1245129113
- Evangeline ToyBehavior Technician1386430825
- David Trachtenberg, MDGeriatric Psychiatry Physician1023249869
- Connie Tracy, CRNACertified Registered Nurse Anesthetist1023169596
- Jennifer Tracy, HIGH SCHOOL DIPLOMABehavior Analyst1356786305
- Julie Traje, PHARMDPharmacist1619297512
- Tara Trakin, MS, RDRegistered Dietitian1336778331
- Jay TramBehavior Technician1346940285
- Andrew TranBehavior Technician1598410268
- Casey Tran, PHARMDPharmacist1659863827
- Christopher Tran, M.D.Diagnostic Radiology Physician1831126952
- Dianna Tran, P.T.Physical Therapist1558610642
- Hai Tran, M.D., FASAAnesthesiology Physician1124269675
- Hien TranPharmacist1487963617
- Jeffrey Tran, PA-CPhysician Assistant1134734205
- Lee Tran, PH.D.Ph.D. Medical Genetics1629593652
- Levina Tran, M.D.Pediatric Anesthesiology Physician1841428984
- Mai-Anh Tran, CNMAdvanced Practice Midwife1982861126
- Nguyen Tran, O.D.Vision Therapy Optometrist1255587291
- Nina TranBehavior Technician1255117255
- Peter Tran, MDCardiovascular Disease Physician1275633216
- Thuy Tran, DPTPhysical Therapist1184034712
- Van TranBehavior Technician1790347912
- Jeffrey Traynor, M.D.Maternal & Fetal Medicine Physician1316981699
- Axel TrejoBehavior Technician1720839913
- Victor TrejoBehavior Technician1477319127
- Rebecca TremayneBehavior Technician1295382687
- Gina TrentBehavior Technician1548087679
- Ana Triana, M.D.Family Medicine Physician1992863138
- April Tritto, M.D.Obstetrics & Gynecology Physician1184825135
- John Trix, MS, RN, APRN-BCNurse Practitioner1477745685
- Kelly Troche, MTMassage Therapist1053001610
- Lisa Trompas, BS PSYCHOLOGYBehavior Technician1942774393
- Justin TropPsychiatry Physician1922627116
- Monica TrostPsychologist1013709260
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.