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 22 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
- William Cimino, MDOrthopaedic Surgery Physician1780762872
- Bradford CintoPharmacist1720351927
- Jenna CisnerosBehavior Technician1992206692
- Sienna CisnerosBehavior Technician1134914146
- Irene Cisneros HerreraBehavior Technician1073465688
- John Citron, MDEndocrinology, Diabetes & Metabolism Physician1760560890
- Rita Clancy, LCSWSocial Worker1598051823
- Ryan ClancySchool Psychologist1124958491
- Sabrina ClancyBehavior Analyst1134859572
- Jeff Clark, DCChiropractor1356056162
- Kay Clark, CRNACertified Registered Nurse Anesthetist1538214218
- Kristin ClarkBehavior Technician1982255790
- Mary Angelyn Clark, MSN, APRNNurse Practitioner1053887455
- Naomi ClarkBehavior Technician1245847714
- Samantha ClarkBehavior Technician1902430630
- Tyler Clark, MDOrthopaedic Hand Surgery Physician1831453778
- Colleen Cleary, MS, CCC-SLPSpeech-Language Pathologist1689177693
- Mikaela Cleland, BSBehavior Technician1922626084
- Mary Clemency, MDAnesthesiology Physician1376621441
- Samantha Clemens, PH.D.Psychologist1295802601
- David Clemons, MDInternal Medicine Physician1831683044
- Thomas Clennell, D.P.T.Sports Physical Therapist1194048363
- Jessica Clima, MDInternal Medicine Physician1932425105
- Sienna ClimonsBehavior Technician1295662146
- Amy Clouse, MDInternal Medicine Physician1376836999
- Janice CobbsBehavior Technician1144926924
- Ericka Coe, LCSWSocial Worker1730737156
- Randall Coeshott, PSY 22560Psychologist1477718468
- Amanda Coey, HIGH SCHOOL DIPLOMABehavior Analyst1326307216
- Jennifer Coggiola, SLPSpeech-Language Pathologist1487774493
- Cynthia Cogswell, MA, CCCSpeech-Language Pathologist1811452295
- Amy Cohen, PHDClinical Psychologist1134670615
- Christopher CohenBehavior Technician1144826454
- Corey CohenClinical Social Worker1720101348
- Emily CohenBehavior Analyst1568074490
- Howard Cohen, M.D.Diagnostic Radiology Physician1508893223
- Ilana Cohen, LMFTMarriage & Family Therapist1942791892
- Kambria CohenClinical Social Worker1679432470
- Michael Cohen, M.D.Critical Care Medicine (Internal Medicine) Physician1205885779
- Susan Cohen, MARRIAGE FAMILY THERMarriage & Family Therapist1497898720
- Catherine Colachico, MS, CCC-SLPSpeech-Language Pathologist1235809245
- Ian ColasNeonatal/Pediatric Certified Respiratory Therapist1134683618
- Conrad Colbrandt, C.HT.Specialist1245478098
- Amy Cole, DODiagnostic Radiology Physician1497833982
- James Cole, PH.D.Clinical Neuropsychologist1780752337
- Michael Cole, PH.D.Psychologist1366641490
- Robert Cole, MDObstetrics & Gynecology Physician1538247713
- Sidney ColeClinical Psychologist1700468311
- Tiffany ColeBehavior Technician1669107116
- Brett Coleman, CRNACertified Registered Nurse Anesthetist1013077015
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.