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 37 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
- Miranda CastanedaRehabilitation Practitioner1053021659
- Tyler CastanedaBehavior Technician1508695818
- Jonas Castaneda-PanucoDiagnostic Radiology Physician1659799369
- Brenda Casteau, LCSWClinical Social Worker1558670570
- Alexis CastellanosBehavior Technician1013763945
- Bianca CastellanosCase Manager/Care Coordinator1417384660
- Dulce CastellanosBehavior Technician1720908882
- Elizabeth CastellanosBehavior Technician1225675929
- Shana Castellanos, M.S.Rehabilitation Practitioner1841522810
- Viviana CastellanosBehavior Analyst1972063402
- Edith Castellon, LCSWClinical Social Worker1649845256
- Megan CastielBehavior Technician1952079014
- Adela V Castillo, NPObstetrics & Gynecology Nurse Practitioner1366524530
- Amy CastilloBehavior Technician1396566568
- Anthony CastilloBehavior Technician1396462750
- Evelyn CastilloBehavior Technician1881155026
- Jose CastilloBehavior Technician1932661675
- Litzy CastilloBehavior Technician1083323281
- Michelle CastilloBehavior Technician1902695232
- Roxanne Castillo, LMFTMarriage & Family Therapist1013341841
- Sally CastilloClinical Social Worker1881864973
- Vivian Castillo, PTPhysical Therapist1174721450
- Amanda Castillo Leon, MASpeech-Language Pathologist1649410895
- Laura Castillo RamirezBehavior Technician1679226419
- Paola Castillo Villagomez, NONEBehavior Technician1275272379
- Brianna Castino NicholasBehavior Technician1225995087
- Shantel CastleAssistant Behavior Analyst1124864772
- Isabella CastorenaBehavior Technician1770420986
- Jesse CastrejonBehavior Technician1952016461
- Olivia CastrejonOther Technician1316521529
- Adreanne CastroAddiction (Substance Use Disorder) Counselor1124869011
- Andrew CastroBehavior Technician1417790270
- Jacinda CastroOther Technician1518551175
- Jennette CastroBehavior Technician1407503527
- Kassandra CastroBehavior Technician1366136442
- Kimberly CastroBehavior Analyst1093274599
- Maria CastroBehavior Technician1952021701
- Pablo CastroBehavior Technician1346100476
- Sandra Castro, B.A.Mental Health Counselor1144486218
- Valerie CastroDay Training/Habilitation Specialist1710705322
- Dana Castro AraujoBehavior Technician1215824545
- Nina CasupananLicensed Vocational Nurse1538950084
- Richard Catabona, DOPhysical Medicine & Rehabilitation Physician1144961285
- Danielle CatacutanMental Health Counselor1750809844
- Rafaelle Aerin CatacutanBehavior Technician1265282685
- Eva CatalanBehavior Technician1962286609
- Jy'Kasharayl CatchingBehavior Technician1033902952
- Sarah CatesBehavior Technician1629833033
- Adithya Cattamanchi, MDCritical Care Medicine (Internal Medicine) Physician1336106871
- Sierra Catzin MurilloBehavior Technician1396554754
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.