Doctors and health care providers in Orange, CA
13,245 individual NPPES records list a practice address in Orange, 11th of 812 California cities. The largest group is behavior technician: 4,271, 32% of the city's records, against 18% across California. Page 168 of 265.
The 8 largest groups in Orange
Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.
Orange in California
- Rank in California11th of 812 cities by records
- Share of the state1.4% of California's records
- Specialties present25 or more taxonomy codes
- Top three groups42% of all records
- Behavior Technician rank7th of the 10 California cities with the most
Compared with California as a whole, Orange has 7.3× the state's share of other technician records and 0.43× its share of physical therapist records.
Providers in Orange, alphabetically
- Alice NguyenBehavior Technician1346136678
- Alvin NguyenBehavior Technician1316621931
- Amie NguyenBehavior Technician1346702016
- Amy Nguyen, ODOptometrist1538651948
- Amy NguyenBehavior Technician1063275923
- Amy NguyenBehavior Technician1548089311
- Andrew NguyenBehavior Technician1346987799
- Andrew NguyenBehavior Technician1215824537
- Andy Nguyen, M.D.Emergency Medicine Physician1538696836
- Angela Nguyen, F.N.P. - BCNurse Practitioner1982075792
- Angeline Nguyen, M.D.Anesthesiology Physician1548608581
- Anh Nguyen, RPHPharmacist1831418169
- Anh Nguyen, RDRegistered Dietitian1770263345
- Anh NguyenBehavior Technician1568237899
- Anh NguyenBehavior Technician1003773227
- Anh-Thy Nguyen, MDStudent in an Organized Health Care Education/Training Program1841133212
- Annie Nguyen, M.EDBehavior Analyst1467911362
- Annie NguyenBehavior Technician1720721863
- Anthony NguyenBehavior Technician1720547292
- Anthony Nguyen, MDFamily Medicine Physician1255917910
- Anthony NguyenOther Technician1316617905
- Ashley NguyenBehavior Technician1215880281
- Au-Lac NguyenBehavior Technician1528880291
- Austin Nguyen, MDAnesthesiology Physician1083109797
- Bao-Nhan Nguyen, MDPsychiatry Physician1205314358
- Beatrix NguyenBehavior Technician1275234403
- Benjamin NguyenBehavior Technician1669195905
- Brandon NguyenStudent in an Organized Health Care Education/Training Program1023868007
- Brian Nguyen, MDAnesthesiology Physician1568925618
- Britney NguyenOther Technician1174196216
- Bryant NguyenBehavior Technician1922710789
- Caroline Nguyen, P.A.Physician Assistant1669897047
- Cassidy Nguyen, NP-BCNurse Practitioner1932622594
- Catherine Nguyen, MDDermatology Physician1295199552
- Catherine NguyenPediatric Urology Physician1902347347
- Chau NguyenMarriage & Family Therapist1265737142
- Chloe NguyenBehavior Technician1659943389
- Christina NguyenBehavior Technician1629913330
- Christopher Nguyen, M.D.Anesthesiology Physician1043519606
- Cindy NguyenOther Technician1346914371
- Claudia NguyenBehavior Analyst1609336049
- Connie Nguyen, MSWClinical Social Worker1962634071
- Coryna NguyenClinical Social Worker1073388591
- Cynthia Nguyen, O.D,Optometrist1942339569
- Cyrus Nguyen, MDEmergency Medicine Physician1750965448
- Dang NguyenBehavior Technician1649037201
- Daniel NguyenStudent in an Organized Health Care Education/Training Program1952981904
- Darren Nguyen, DDSDentist1851481675
- Daryn NguyenStudent in an Organized Health Care Education/Training Program1568304665
- Dat NguyenBehavior Technician1750245106
The largest California cities
- Los Angeles69,537
- San Diego52,937
- San Francisco38,143
- Sacramento33,083
- San Jose20,925
How to read this directory
Orange, California appears in the CMS National Plan and Provider Enumeration System with 13,245 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 Orange - 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 Orange 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 Orange is weighted toward Behavior Technician (4,271 clinicians, followed by Student in an Organized Health Care Education/Training Program with 870 and Marriage & Family Therapist with 424). 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, Orange reports roughly 34 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, Case Manager/Care Coordinator is the most prominent one with no provider currently listing a Orange practice address, a coverage gap Orange patients typically fill by traveling to a larger nearby hub.
For Orange 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 Orange, CA?
There are 13,245 registered healthcare providers in Orange, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Orange?
The most common specialties in Orange are Behavior Technician, Student in an Organized Health Care Education/Training Program, Marriage & Family Therapist, Clinical Social Worker, Mental Health Counselor. Behavior Technician has the most providers with 4,271.
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.