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 56 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
- Sierra DavisStudent in an Organized Health Care Education/Training Program1457027906
- Steven Davis, M.D.Radiation Oncology Physician1558463653
- Traevon DavisBehavior Technician1891677266
- Amanda Dawe, O.D.Optometrist1659302198
- Danielle Dawson, BAAddiction (Substance Use Disorder) Counselor1821600636
- Escada DawsonBehavior Technician1033975511
- Kimberly Day, RADTAddiction (Substance Use Disorder) Counselor1922527571
- Mikayla DayBehavior Technician1225915960
- Rakhi Dayal, M.D.Pain Medicine (Anesthesiology) Physician1114233053
- Farshid Dayyani, M.D., PH.D.Medical Oncology Physician1376710434
- Israel De Alba, MDHospitalist Physician1639259732
- Giselle De AvilaBehavior Technician1831970979
- Maribel De Avila, LCSWClinical Social Worker1538395884
- Kriza Mae De CastroBehavior Technician1457201519
- Leila De CastroPsychiatric/Mental Health Registered Nurse1245918192
- Marianne De Castro MirallesCommunity Health Worker1326840075
- Morin De DiosBehavior Technician1053208389
- Carol De Guzman, NP-CPrimary Care Nurse Practitioner1669805214
- Denise De GuzmanBehavior Technician1104521194
- Kylie De GuzmanBehavior Technician1841119831
- Angela De La Cerda, CATCIAddiction (Substance Use Disorder) Counselor1750741104
- Adrian De La CruzDay Training/Habilitation Specialist1649908823
- Cherish De La Cruz, RN, PHNEmergency Registered Nurse1679026249
- Emely De La CruzBehavior Technician1700760394
- Leslie De La Flor, FNP-BCFamily Nurse Practitioner1831491984
- Luis M De La Maza, MDAnatomic Pathology & Clinical Pathology Physician1275613374
- Alejandra De La OBehavior Technician1538860879
- Vanesa De La OBehavior Technician1689407868
- Josefina De La Paz, SLPASpeech-Language Assistant1235937368
- Crystal De La RivaMarriage & Family Therapist1801447479
- Olivia De La Riva, LCSWClinical Social Worker1467085068
- Tiffany De La Riva, LCSWClinical Social Worker1407599947
- Francia De La Riva-MartinezBehavior Technician1013574045
- Desiree De La RosaBehavior Technician1255928529
- Jennifer De La RosaSocial Worker1750782645
- Joseph De La RosaLicensed Vocational Nurse1346180874
- Francisco De La Serna, LMFTMarriage & Family Therapist1225398878
- Nataly De La TorreBehavior Technician1689353765
- Reynol De La TorreBehavior Technician1407773575
- Dallas De La Vara, MDNeurology Physician1235624321
- David De La VegaMarriage & Family Therapist1407645427
- Lucia De La VegaGerontology Nurse Practitioner1487379004
- Justin De LeonLicensed Psychiatric Technician1356924385
- Mary De Leon, MSWSocial Worker1871269993
- Nanci De LeonBehavior Technician1316623309
- Steffi Ellein De Leon, OTGerontology Occupational Therapist1952866444
- Jorge De Leon MendiaCommunity Health Worker1871334318
- Gea De Los Reyes, PHARMDPharmacist1942019831
- Nathalie De Michelis, RNAdministrator Registered Nurse1609757871
- Alcides De Oliveira, NURSE PRACTITIONERFamily Nurse Practitioner1760626675
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.