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 224 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
- Iryna Singh, FNPNurse Practitioner1831659408
- Jasjit Singh, M.D.Pediatric Infectious Diseases Physician1306915848
- Kathryn Singh, MPH, MS, CGCGenetic Counselor (M.S.)1396014866
- Kiran SinghHospitalist Physician1780116194
- Kiranjot Singh, PHARMDPharmacist1649441403
- Tulika Singh, M.D., M.S., AAHIVSInfectious Disease Physician1467692947
- Antinett SingletonPsychologist1245855253
- Darryl SingletonAddiction (Substance Use Disorder) Counselor1154506467
- Kelly Singleton, RNRegistered Nurse1053877647
- Mohini Sinha, MDPediatrics Physician1689706376
- Sanjay Sinha, MDPediatric Cardiology Physician1881985349
- Catherine SintoplertchaiyakulMassage Therapist1841805082
- Susan SiracoStudent in an Organized Health Care Education/Training Program1104575471
- Holly SiracusaBehavior Technician1699497602
- Reza Sirous, M.D., MPHBody Imaging Physician1851822092
- Alicia SiscoLicensed Vocational Nurse1336005578
- Piyush Sisodia, DDSGeneral Practice Dentistry1487055810
- Monique SiswoyoClinical Social Worker1518607621
- Faaua SiuBehavior Technician1821793076
- David SivardBehavior Analyst1851889885
- Mitchell SiwaStudent in an Organized Health Care Education/Training Program1255089702
- James Siy, ATCAthletic Trainer1083146609
- Desmond Sjauwfoekloy, MDCritical Care Medicine (Internal Medicine) Physician1639246580
- Carol Skaggs, SCHOO PSYCHOLOGISTSchool Psychologist1871268326
- Elyse Skelton, RDRegistered Dietitian1255770178
- Harry B Skinner, MDAdult Reconstructive Orthopaedic Surgery Physician1790889384
- Shannon SkochkoStudent in an Organized Health Care Education/Training Program1659957264
- Laura Skoczylas, MDObstetrics & Gynecology Physician1003097692
- Jonathan Skupsky, MD/PHDGastroenterology Physician1396038477
- Kelly SkvarnaPhysician Assistant1932825791
- Xiara SlabyOther Technician1821756750
- Mark Slader, MDEmergency Medicine Physician1134878440
- Selina Sladics, NPNurse Practitioner1023768033
- James Slatin, M.P.T.Physical Therapist1760591671
- Karri SlatonSpeech-Language Pathologist1891623229
- Troi Slattery, LCSWClinical Social Worker1639576481
- Tom SlezakMental Health Counselor1316389364
- John Slingerland, PA-CPhysician Assistant1710592811
- Erin Slobodyan, MDEmergency Medicine Physician1598394173
- Myron Slobogean, MDOrthopaedic Trauma Physician1871872986
- Remy Slomoff, MDStudent in an Organized Health Care Education/Training Program1184419418
- Amanda SloverBehavior Technician1508425166
- Kathleen SmaleBehavior Technician1811681984
- Sean Small, NONEBehavior Technician1760126759
- Shannon SmallBehavior Technician1861218448
- Steven Small, MDNeurology Physician1447301429
- Teri SmallCase Manager/Care Coordinator1427239219
- Toni SmallLicensed Vocational Nurse1447403803
- Jonathan SmartEmergency Medicine Physician1831545110
- John Smead, PSY.DForensic Psychologist1407274582
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.