Doctors and health care providers in Westminster, CA
1,306 individual NPPES records list a practice address in Westminster, 162nd of 812 California cities. The largest group is pharmacist: 151, 12% of the city's records, against 3% across California. Page 13 of 27.
The 8 largest groups in Westminster
Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.
Westminster in California
- Rank in California162nd of 812 cities by records
- Share of the state0.1% of California's records
- Specialties present25 or more taxonomy codes
- Top three groups24.1% of all records
Compared with California as a whole, Westminster has 4.4× the state's share of other technician records and 0.26× its share of behavior technician records.
Providers in Westminster, alphabetically
- Ruby NavarroAssistant Behavior Analyst1386110831
- Erin Nettleton, MFTMarriage & Family Therapist1598858144
- Janet Nghiem, O.D.Optometrist1588752356
- Thanh NghiemPharmacist1801726054
- Benjamin Ngo, RPHPharmacist1184047623
- Cam NgoRegistered Dietitian1891501102
- Charles Ngo, MSWClinical Social Worker1164549390
- Cuong Ngo, MDInternal Medicine Physician1285760850
- Dean Ngo, MDInternal Medicine Physician1982690582
- Hanh Ngo, DDSDentist1225447949
- Jason Ngo, PT, DPTPhysical Therapist1659177194
- Jonathan NgoPediatric Dentistry1891680005
- Kim Xuyen NgoMental Health Counselor1235402116
- Loan Ngo, M.D.Internal Medicine Physician1386696144
- Nancy Ngo, PHARMDPharmacist1447665070
- Quan NgoPharmacist1730589607
- Tam Ngo, DDSDentist1013223429
- Tan Ngo, M.D.Internal Medicine Physician1770503997
- Thanh Ngo, DDSDentist1003944638
- Tien Ngo, DDSDentist1104953819
- Tran Ngo, D.C.Chiropractor1407842834
- Alan Nguyen, DDSGeneral Practice Dentistry1366567976
- Amy Nguyen, MDOtolaryngology Physician1205070794
- An Nguyen, DDSDentist1689193054
- Andrew Nguyen, PHARM.D.Pharmacist1912521758
- Andrian Nguyen, O.D.Optometrist1497808208
- Andy NguyenEndocrinology, Diabetes & Metabolism Physician1851746028
- Anh NguyenPharmacist1144639709
- Anh Nguyen, O.T. R/LOccupational Therapist1265882856
- Anh Nguyen, DDSGeneral Practice Dentistry1326967837
- Anhtuan Nguyen, MDInternal Medicine Physician1386698660
- Anthony Nguyen, D.C.Chiropractor1598979197
- Antoni Nguyen, D.C.Rehabilitation Chiropractor1528296571
- Betty Nguyen, D.O.Family Medicine Physician1679741854
- Bich-Ngoc Nguyen, DDSGeneral Practice Dentistry1932327319
- Binh Nguyen, PHARM.D.Pharmacist1912386954
- Brandon Nguyen, PHARMDPharmacist1184212961
- Brittany Nguyen, DDSGeneral Practice Dentistry1750060083
- Calvin NguyenDay Training/Habilitation Specialist1528254646
- Cammie Nguyen, PSYDClinical Psychologist1487104105
- Caroline Nguyen, REGISTERED PHARMACISPharmacist1184072951
- Catherine Nguyen, PHARM.D.Pharmacist1609920693
- Catherine Nguyen, PA-CPhysician Assistant1326316076
- Chan Nguyen, M.D.Family Medicine Physician1932390473
- Chau Nguyen, O.D.Optometrist1962473181
- Chelsea Nguyen, RPHPharmacist1467961433
- Chidao Nguyen, DOHospitalist Physician1780850198
- Chinh Nguyen, D.D.S.Dentist1821227349
- Christina Nguyen, BCBABehavior Analyst1588222905
The largest California cities
- Los Angeles69,537
- San Diego52,937
- San Francisco38,143
- Sacramento33,083
- San Jose20,925
How to read this directory
Westminster, California appears in the CMS National Plan and Provider Enumeration System with 1,306 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 Westminster - 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 Westminster 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 Westminster is weighted toward Pharmacist (151 clinicians, followed by General Practice Dentistry with 94 and Dentist with 70). 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, Westminster reports roughly 3.4 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, Addiction (Substance Use Disorder) Counselor is the most prominent one with no provider currently listing a Westminster practice address, a coverage gap Westminster patients typically fill by traveling to a larger nearby hub.
For Westminster 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 Westminster, CA?
There are 1,306 registered healthcare providers in Westminster, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Westminster?
The most common specialties in Westminster are Pharmacist, General Practice Dentistry, Dentist, Behavior Technician, Marriage & Family Therapist. Pharmacist has the most providers with 151.
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.