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 95 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
- Eddie HarrisMental Health Counselor1699105593
- Jeremy Harris, MDRadiation Oncology Physician1922427053
- John Harris, M.D.Anesthesiology Physician1477574093
- Joshua Harris, MDDiagnostic Radiology Physician1043890676
- Lesley HarrisBehavior Technician1164283503
- Michelle HarrisClinical Social Worker1649770017
- Rodney HarrisMental Health Occupational Therapist1427624790
- Saniah HarrisBehavior Technician1376413955
- Terri HarrisAddiction (Substance Use Disorder) Counselor1437708823
- William Harris, MDAllergy & Immunology Physician1922065788
- Yasmyn HarrisBehavior Technician1437852761
- Lawrence Harrison, M.D.Psychiatry Physician1376976944
- Matty HarrisonCase Manager/Care Coordinator1487146775
- Timothy HarrisonDay Training/Habilitation Specialist1417660630
- Sarah HarrodPsychiatric/Mental Health Clinical Nurse Specialist1366129587
- Duncan Harter, CADC-CASAddiction (Substance Use Disorder) Counselor1508434390
- Jon Harting, PA-CPhysician Assistant1467028027
- Heather Hartley LacunzaBehavior Technician1275341109
- Christopher Harvey, MSWClinical Social Worker1073859542
- Pierce HarveyBehavior Technician1063380780
- Mary Harward, M.D.Geriatric Medicine (Internal Medicine) Physician1407835275
- Timothy Harward, M.D.Vascular Surgery Physician1982605986
- Daniel HarwoodEmergency Medicine Physician1972298040
- Nicole HasakianBehavior Technician1689492282
- Insha HasanBehavior Technician1710602792
- Grace HasellStudent in an Organized Health Care Education/Training Program1245080951
- Zahra Hashemi, D.D.S., M.S.Prosthodontics1093904732
- Maryam Hashemiesfahani, APRNNurse Practitioner1518364769
- Hassan HashmPulmonary Disease Physician1528589405
- Sohaib Hashmi, MDOrthopaedic Surgery of the Spine Physician1982022281
- Tuba HasirchiBehavior Technician1295572154
- Bima Hasjim, MDStudent in an Organized Health Care Education/Training Program1417418609
- Hawalul HassanBehavior Technician1881398634
- Noor Hassan HassanBehavior Technician1992511729
- Saleh Hassan, MDStudent in an Organized Health Care Education/Training Program1942140389
- Sherif Hassan, D.D.S.Dentist1811402761
- Sundehi HassanBehavior Technician1790640092
- Duke Hasson, M.DOrthopaedic Surgery Physician1831489939
- Sherry Hastings, M.A.Marriage & Family Therapist1386196285
- Susan Hastings, MFTMarriage & Family Therapist1043444631
- Maureen Haston, NPNurse Practitioner1134587553
- Aaron HatcherMarriage & Family Therapist1033562988
- Jacquelyn HatcherMental Health Counselor1720507031
- Tamera Hatfield, MD, PHDMaternal & Fetal Medicine Physician1033390331
- Elianna HausamBehavior Technician1396627709
- Muna HawatmehMental Health Counselor1457089518
- Delaney HawkinsBehavior Technician1164034708
- Rebecca HawkinsBehavior Technician1093698359
- Shahid Hayat, M.D.Critical Care Medicine (Internal Medicine) Physician1316047913
- Anthony HaydenCase Manager/Care Coordinator1730774779
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.