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 67 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
- Veronica LovoBehavior Technician1437012499
- Betty Low, PHARM. DPharmacist1417016395
- Garner Low, PHARM.D.Pharmacotherapy Pharmacist1770651184
- Lisa Low, DOEmergency Medicine Physician1275611378
- Kevin Lowe, PA-CSurgical Physician Assistant1659644870
- Matthew Lowe, DCChiropractor1265177729
- Robert Lowe, M.D.Ophthalmology Physician1922253491
- Samantha LowerBehavior Technician1619762010
- Ruby Loza MarquezBehavior Technician1366390023
- Michael Lozano, MDEmergency Medicine Physician1114005287
- Brenda Lu, DNP, CNM, WHNP-BCMidwife1164822201
- Helen Lu, FNPNurse Practitioner1639510332
- Santa LuangkhamMassage Therapist1255036208
- Carolyn LucacherBehavior Technician1366945438
- Michael Lucas, DOEmergency Medicine Physician1184702292
- Michael Lucas, DMDProsthodontics1578777405
- Yinmei Lui, M.S.Behavior Technician1750849360
- Tessa LuiniBehavior Technician1952040057
- Cameron LumBehavior Technician1073102299
- Christina LumPharmacotherapy Pharmacist1104249754
- George Lum, MDCritical Care Medicine (Internal Medicine) Physician1629156799
- Janell LumleyMarriage & Family Therapist1023135852
- Santiago Luna LopezBehavior Technician1164392346
- Christine Lunde, R.D.Registered Dietitian1578743563
- Caesar Luo, M.D.Retina Specialist (Ophthalmology) Physician1669684072
- Jeffrey Luo, MDOrthopaedic Surgery Physician1477627073
- David LuongPharmacist1144738212
- Denise LussierBehavior Technician1821652975
- Toby Lustig, MDPediatrics Physician1336177336
- Jennifer Lutz, MDPediatrics Physician1477631570
- Cam LuuBehavior Technician1851162382
- Tony Luu, PHARM.D.Pharmacist1538507652
- Ivy Ly, PHARM.D.Pharmacist1225765027
- Jessica Ly, PHARMDPharmacist1700466190
- Nancy Ngoc Giao Ly, MD, MPHOccupational Medicine Physician1598050205
- Barton Lynch, PSY.D.Clinical Psychologist1518077478
- Brittany LynchBehavior Technician1063291250
- Emily LynchBehavior Technician1720861339
- Matthew LyonsPulmonary Disease Physician1457714933
- Daniel MaPhysical Therapist1821693839
- Danning MaPharmacist1316433642
- Edward Ma, PHARM DPharmacist1730244526
- Ming-Tyh Maa, M.D.Pulmonary Disease Physician1073718722
- Pamela Macapagal, RNPediatric Registered Nurse1144915331
- Kimberly Macario GarciaBehavior Technician1255288023
- Lynda Macbeath, MDPsychiatry Physician1841165677
- Daisy-Scarlett Maccallum, M.DFamily Medicine Physician1508120924
- Harry Macdannald, M.D..Sleep Medicine (Internal Medicine) Physician1306895313
- Noelle MaceBehavior Technician1235812298
- Amanda Machette, CNMAdvanced Practice Midwife1780940791
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.