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 89 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
- Jamie GrayBehavior Technician1548153372
- Nicki GrayBehavior Technician1619832524
- Ronald Gray, MFTIMarriage & Family Therapist1679907067
- Gary Greco, RPHPharmacist1164895207
- Nicolemadeira GrecoMarriage & Family Therapist1285300913
- Ambar GreenSocial Worker1952766909
- Brittney GreenBehavior Technician1093372633
- Emelie GreenBehavior Technician1346939915
- Eric GreenPeer Specialist1548761547
- Geoffrey Green, PAMedical Physician Assistant1306878533
- Jessica Green, MDObstetrics & Gynecology Physician1770163271
- Lisette GreenBehavior Technician1437930922
- Sandra GreenMental Health Counselor1538291349
- Danielle Greenberg, MDObstetrics & Gynecology Physician1477180420
- Megan Greenberg, FNPFamily Nurse Practitioner1740623420
- Channing Greenburg, D.O.Pediatrics Physician1134858038
- Ceivannah GreeneBehavior Technician1518698844
- Michelle Greene, LCSWClinical Social Worker1023835634
- Fred Greensite, MDDiagnostic Radiology Physician1952484479
- Jaclyn Greenwood, MS, LCGCGenetic Counselor (M.S.)1871217893
- Anita Gregory, M.D.Colon & Rectal Surgery Physician1881655868
- Hallie GregoryBehavior Technician1790654325
- Oriana GregoryLicensed Psychiatric Technician1336787092
- Rosanna Gregory, LACAcupuncturist1073720546
- Annaliza GreissBehavior Technician1497637078
- Josiah Grepo, PT, DPTPhysical Therapist1538731732
- Mychal GrepoRegistered Nurse1548159064
- Irina Gres, BABehavior Analyst1831657907
- Jacy Gressen, MDAnesthesiology Physician1710515861
- Jasleen Grewal, MDInternal Medicine Physician1053739144
- Rasvin Grewal, M.D.Anesthesiology Physician1902824089
- Quiara GreyCounselor1982486866
- Alyssa GribbenBehavior Analyst1023731619
- Danielle Gribben, RNRegistered Nurse1992251409
- Shelby GriffinBehavior Technician1104635622
- Areg Grigorian, MDSurgical Critical Care Physician1538579578
- Jocelyn GrigsbyMental Health Counselor1164003323
- Breanna Grijalva, MDStudent in an Organized Health Care Education/Training Program1205680410
- Harvie GrijalvaBehavior Technician1548947500
- Courtney Grimes, M.A., CCC-SLPSpeech-Language Pathologist1225262298
- Stephanie GrimesAddiction (Substance Use Disorder) Counselor1952996043
- Jennifer GrinceriHospitalist Physician1396325080
- Seanna Grob, MD, MASOphthalmic Plastic and Reconstructive Surgery Physician1013262104
- Lindsay Groeschel, SLPASpeech-Language Assistant1740780626
- Rachael Groh, MDPsychiatry Physician1144925157
- Jennifer Gross, DPTPhysical Therapist1043645328
- John Gross, MDPlastic and Reconstructive Surgery Physician1619900446
- Marcus GrossDay Training/Habilitation Specialist1063206324
- William Gross, D.M.D.General Practice Dentistry1538476395
- Lesa Grovas, N.P.Pediatric Nurse Practitioner1972677409
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.