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 63 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
- Lisa Donley-Lanyi, M.A., M.F.T.Marriage & Family Therapist1245503721
- Joseph Donnelly, MDNeurology with Special Qualifications in Child Neurology Physician1699719237
- Taryn Donnowitz, OTROccupational Therapist1821332719
- Brian Donoghue, M.D.Anesthesiology Physician1619182151
- Steven DonoghueNurse Practitioner1568311405
- Oscar Donoso, PHD, LPClinical Psychologist1801025879
- Jacqueline Donovan, MDAnesthesiology Physician1497068829
- Mason DoolBehavior Technician1275401119
- Sarah DoppsPsychologist1588289409
- Aida DorantesBehavior Technician1780316208
- Brenda DorantesBehavior Technician1174169064
- Yennifer Dorantes AvilaOther Technician1568051837
- Jacob DorchBehavior Technician1497637854
- Gwen Dorn, OTRL, CHTHand Occupational Therapist1316144199
- Sean Dornbush, DOHospitalist Physician1538798236
- Howard Dorne, M.D.Diagnostic Radiology Physician1376543140
- Kyle DornhoferEmergency Medicine Physician1942836812
- Megan DorsettSpeech-Language Pathologist1417408709
- Alyssa Dorsey-WilliamsBehavior Technician1609629468
- Bilal Amir DortchBehavior Technician1386478196
- Kuljinder Dosanjh, P.A.Physician Assistant1225018237
- Nita Doshi, M.D.Pediatrics Physician1891984316
- Janis Dossen-Jones, MDAnesthesiology Physician1114283405
- Robert Doubleday, DDSGeneral Practice Dentistry1316151178
- Geraldina Douglas, NPFamily Nurse Practitioner1598965741
- Jamine DouglasStudent in an Organized Health Care Education/Training Program1265352421
- Victoria Douglas-GorySocial Worker1467821983
- Leyna DoungBehavior Technician1891485736
- Emily E Dow, MDFamily Medicine Physician1275613317
- Frances Dowdy, PH.D.Psychologist1033396064
- Fiorella DowellSocial Worker1588005144
- Mary DowellBehavior Technician1942983119
- Maci DoyalBehavior Technician1558284679
- McKenna DoyleBehavior Technician1639881451
- Jennifer Draganchuk, MDObstetrics & Gynecology Physician1386138162
- David Draghici, DPTPhysical Therapist1053019349
- Susan Dragoo, APRN WHNP/FNP-BCWomen's Health Nurse Practitioner1730586322
- Michael V Drake, MDOphthalmology Physician1356421499
- Dennise DrapeteBehavior Technician1407656556
- Michael DravesBehavior Technician1750125472
- Daina Dreimane, MDPediatric Endocrinology Physician1013098177
- Jean Drexler, D.D.S RPHGeneral Practice Dentistry1649423088
- Ayren Dreyer, SLPSpeech-Language Pathologist1003251786
- Candice Dreyer, RDRegistered Dietitian1649313255
- Michael DreyfussPediatric Occupational Therapist1053774281
- Sara DriesRegistered Nurse1336097070
- Krista Driver, PSY.DMarriage & Family Therapist1184740631
- Ashley DrownClinical Social Worker1598924102
- Marisa DruxmanBehavior Technician1790617058
- Derek Du, FNPFamily Nurse Practitioner1689886863
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.