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 154 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
- Margarita Mendoza, LVNLicensed Vocational Nurse1801713128
- Melissa MendozaLicensed Vocational Nurse1386511277
- Nathan MendozaBehavior Technician1821911165
- Paul MendozaBehavior Technician1023979028
- Rosemarie Mendoza, NPNurse Practitioner1669529665
- Samantha MendozaBehavior Technician1871416123
- Susan Mendoza, MSSpeech-Language Pathologist1205158235
- Vanessa MendozaPhysician Assistant1154029098
- Veronika Mendoza, LPCC, LEPMental Health Counselor1114545670
- Abelardo Mendoza Franco, BACHELOR OF ARTSSpeech-Language Pathologist1598308934
- Daisy Mendoza LopezBehavior Technician1073307625
- Stuart Mendoza NolascoMental Health Counselor1922978659
- Estefanny Mendoza SoriaBehavior Technician1558078725
- Daisy Mendoza-Flores, RNRegistered Nurse1013459262
- Raphael MenezBehavior Technician1265172423
- Kimberly Menezes, MDOphthalmology Physician1386384485
- Kenneth Meng, M.D.Diagnostic Radiology Physician1134443211
- Miah MenjivarBehavior Technician1518823368
- Daniella MenoyaBehavior Technician1518646694
- Ana MercadoBehavior Technician1083555809
- Aprelle MercadoBehavior Technician1760297717
- Daisy MercadoBehavior Technician1013792837
- Nicole MercadoBehavior Technician1073296661
- Edna Sophia Mercorios, PSY.D.Clinical Psychologist1467593087
- James Mergelmeyer, DDSStudent in an Organized Health Care Education/Training Program1386005098
- Andrea MeridaBehavior Technician1518883859
- Rosa MeridaBehavior Technician1659139673
- David Merin, MDEmergency Medicine Physician1811929979
- Esmeralda MerinoBehavior Technician1760135396
- Sandra Merino, PHARMD, BCPPSPharmacist1073373890
- Amando Merino Martinez, NONEBehavior Technician1578222105
- Alyssa MerittBehavior Technician1104688118
- Caren Merrill, MPHGenetic Counselor (M.S.)1871623942
- Holly MerrillMarriage & Family Therapist1326542051
- Kamryn MerrillBehavior Analyst1508610007
- Kaylie MerrillBehavior Technician1508400045
- Star MerrillBehavior Technician1124987029
- David MerriottOphthalmology Physician1588242606
- Patricia Merten, PT, DPTPhysical Therapist1215498084
- Eric Mervis, M.DEmergency Medicine Physician1316178361
- Heather Mesa, MDStudent in an Organized Health Care Education/Training Program1598566739
- Alister Meshkin, MDAnesthesiology Physician1710481130
- Dana MeshkinStudent in an Organized Health Care Education/Training Program1467206946
- Hannah MessickBehavior Technician1063981041
- Lauren MessierBehavior Technician1871374512
- Jouly MessihaBehavior Technician1770448292
- Renee Mestanza-Esquer, C.N.P.Women's Health Nurse Practitioner1225082142
- Christopher MestyanekStudent in an Organized Health Care Education/Training Program1487304259
- McKenna MetcalfBehavior Analyst1194383117
- Elena Metchikoff, R.D.Registered Dietitian1083994818
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.