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 75 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 Follmer, LCSWClinical Social Worker1336694017
- Emily Fonda, MD MMMSpecialist1033532254
- Amanda FongBehavior Technician1053288936
- Felicia FongPediatrics Physician1902744774
- Marie FongStudent in an Organized Health Care Education/Training Program1346041282
- Nicole FongBehavior Analyst1457938631
- Alberto FonsecaBehavior Technician1104546951
- Allene FonsecaDermatology Physician1487008025
- Jazmin FonsecaBehavior Technician1851271662
- Cassidy FontaineDay Training/Habilitation Specialist1235953571
- Lindsay Fontecha, AGACNP-BCAcute Care Nurse Practitioner1699177907
- Virginia Fontenot, MDObstetrics & Gynecology Physician1124681812
- Siyavash Fooladian, M.D.Anesthesiology Physician1508016767
- Demetra FoondosBehavior Technician1770441537
- Lee Forbes, CCAPPAddiction (Substance Use Disorder) Counselor1861025553
- Allyn ForbushBehavior Technician1770352270
- Jenna Forcier, NPAcute Care Nurse Practitioner1609699024
- Camdon FordBehavior Technician1568307387
- Tess FordAddiction (Substance Use Disorder) Counselor1447822622
- Robin Fordham, PAMedical Physician Assistant1902175276
- Jonathan ForfaSpeech-Language Pathologist1962865816
- Nikta Forghani, MDPediatric Endocrinology Physician1902011026
- Zahra Forghani EsfahaniDentist1255573218
- Michael Forino, M.D.Diagnostic Radiology Physician1891794319
- Ava FormicaBehavior Technician1003675737
- Harry Fornwalt, MDHospitalist Physician1306084173
- Saam ForoshaniStudent in an Organized Health Care Education/Training Program1740082668
- Eleanor Forrest, RN, MSNCommunity Health Registered Nurse1700067287
- Samuel ForresterDay Training/Habilitation Specialist1467242388
- Anna ForslundMarriage & Family Therapist1811870140
- Grace Forster, MDStudent in an Organized Health Care Education/Training Program1588305965
- Samuel ForstonBehavior Technician1508538869
- Tina Forsythe, PT, DPTPhysical Therapist1730620964
- Marita Fortades, MDPediatrics Physician1003948803
- Vanessa Forte, BTBehavior Technician1548195175
- Donald N Forthal, MDInfectious Disease Physician1215017363
- Kyle Fortinsky, MDGastroenterology Physician1710403498
- Jazmyne FortmanMarriage & Family Therapist1134894686
- Alyson FortunaBehavior Technician1780300327
- Angelica FortunaBehavior Technician1831968569
- Zoe FortunaBehavior Technician1124917042
- Courtney Fosnaugh-GonzalesBehavior Technician1265065627
- Sabrina FossiGenetic Counselor (M.S.)1932070299
- Janet Fossum, PH.D.Clinical Psychologist1871673954
- Ashli Foster, L.AC.Acupuncturist1023033164
- Jennifer Foster, B.A PSCHOLOGYMental Health Counselor1174727598
- Robin FosterBehavior Technician1629889837
- Gianna FoteStudent in an Organized Health Care Education/Training Program1891490884
- Peter Fotinakes, M.D.Sleep Medicine (Internal Medicine) Physician1679542518
- Christopher Fotinos, DDSDentist1801988563
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.