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 71 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
- Cheyenne MathisBehavior Technician1639764921
- Nina Symone MathisBehavior Technician1255268926
- Archana Mathur, MDPediatric Endocrinology Physician1528146685
- Adam Matichak, DPTPhysical Therapist1629438056
- Abdullah MatieeAssistant Behavior Analyst1124595830
- Aesha Matiee, M.S BCBABehavior Analyst1558869362
- Paresh Matmari, M.D.Hospitalist Physician1881603306
- Christopher Matock, D.C., C.C.S.P.Chiropractor1497929129
- Nathan Matsubara, PHARMDPharmacist1538613393
- Maki Matsumura, NP-CNurse Practitioner1013316488
- Chris Matsunaga, DDSDentist1912117540
- Robert Matthews, M.D.Nuclear Radiology Physician1215963186
- Timothy Matthiessen, RDRegistered Dietitian1972276475
- James MattinglyGeneral Practice Dentistry1245329408
- Randeep Mavi, M.D.Family Medicine Physician1114158086
- Linda Maxey, CNMAdvanced Practice Midwife1528124526
- Japria MaxwellMental Health Counselor1629955984
- Melissa May, DPTPhysical Therapist1568174779
- Robin May, CRNACertified Registered Nurse Anesthetist1780740878
- Stephanie May, BABehavior Technician1811538143
- Trevor MayeauBehavior Technician1437858339
- Lisa Mayhugh, PT, CMTPhysical Therapist1487708434
- Florcena Mayo, CRNACertified Registered Nurse Anesthetist1740477462
- Robert Mayo, MDObstetrics & Gynecology Physician1811042807
- Meagan MazanyBehavior Analyst1578125290
- Martin Mazar, MDCritical Care Medicine (Internal Medicine) Physician1962580043
- Kathleen Mazolewski, MFT, PTMarriage & Family Therapist1881227130
- Peter Mazolewski, M.D.Surgery Physician1710076773
- Amanda McAllister, PHARMDPharmacist1891843991
- Teri McAllisterBehavior Technician1790528099
- Shelly McArdleBehavior Technician1851024558
- Gloria McBethSpeech-Language Pathologist1659771087
- Shannon McCabe, M.D.Cornea and External Diseases Specialist Physician1407210362
- Shannon McCabe, AU.D.Audiologist1568381119
- Megan McCaleb, PA-C, MSPAS, MPHSurgical Physician Assistant1467803965
- Heather McCall, MFTMarriage & Family Therapist1891336517
- Timothy McCalmont, M.D.Dermatopathology (Pathology) Physician1275598732
- Patricia McCarley, RN NPNurse Practitioner1801897723
- Nicholas McCarthyBehavior Analyst1912209040
- Brittany McClanahanBehavior Technician1053884643
- Evan McClureBehavior Technician1952918138
- Claire McCormickBehavior Technician1235958083
- Caitlyn McCoy, RD, CNSDRegistered Dietitian1619018777
- G. McCrea, MS, ARNP, BC, FNPFamily Nurse Practitioner1609960780
- Brendan McCullough, MDDiagnostic Radiology Physician1497954317
- Brandon McCutcheon, MDNeurological Surgery Physician1093195380
- Sophia McDadeCommunity Health Worker1467293936
- Roxanne McDaniel, MDInternal Medicine Physician1457439937
- Polina McDermott, PHARMDPharmacist1386230811
- Melissa McDonough, OTROccupational Therapist1629569256
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.