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 121 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
- Jeffrey KinolBehavior Technician1548953169
- Cathryn KinoshitaBehavior Technician1609550466
- Natalie KirakosianBehavior Technician1598477648
- Stella KirakosianInterpreter1497311278
- Ashley KirbyBehavior Technician1780414995
- Krysta KirbyStudent in an Organized Health Care Education/Training Program1609287515
- Kelly Kirchenwitz, MDStudent in an Organized Health Care Education/Training Program1073461208
- Nicole KirinBehavior Technician1861045254
- Christina Kirk, NPNurse Practitioner1962656017
- Tara KirkBehavior Technician1801679972
- Cali Kirkham-Garcia, MD, MPHEmergency Medicine Physician1588290589
- Lily Kirkland, M.A.Marriage & Family Therapist1962893040
- Jacob Kirkorowicz, MD, MSCTrauma Surgery Physician1275038010
- Ivan Kirov, MDPediatric Hematology & Oncology Physician1215025044
- Jacinta KirukuBehavior Technician1790547669
- Lindsay KissPhysician Assistant1811587066
- Shannon Kiss, DOObstetrics & Gynecology Physician1831830629
- Emily Kistler, PA-C, MMSPhysician Assistant1922578970
- Antonia KizerBehavior Technician1619829371
- Jennifer KladourisBehavior Analyst1184188963
- Jamie KleekampBehavior Technician1235816521
- Claudia Klein, MDAnesthesiology Physician1033378930
- Khloe KleinBehavior Technician1003642687
- Paytra Klein, MD, MBAStudent in an Organized Health Care Education/Training Program1467253336
- John Kleinberg, M.D.Specialist1679639090
- Allison Kleponis, LCSWClinical Social Worker1427936996
- Savannah KleschkaBehavior Technician1295445302
- Jessica Klinkenberg, LMFTMarriage & Family Therapist1003638313
- Sanela KljajicMarriage & Family Therapist1205362688
- David KlosterMental Health Counselor1770614448
- Jenna KnappPhysician Assistant1528885449
- Jordan KnappClinical Social Worker1518653799
- Rolf Knapp, D.OFamily Medicine Physician1053355982
- Irina B Knezevic-Maramica, MDAnatomic Pathology & Clinical Pathology Physician1790865905
- Jason Knight, M.D.Pediatric Critical Care Medicine Physician1437243102
- Victoria KnightenBehavior Technician1912620519
- Andrew Knoll, M.D.Diagnostic Radiology Physician1801075189
- Amber KnopfMental Health Counselor1053963603
- Emily KnowlesOther Technician1710591722
- Dylan KnoxBehavior Technician1881487916
- Lilia Knudtson, NURSE PRACTITIONERGeneral Practice Registered Nurse1528289394
- Katelyn KnupferBehavior Technician1184241770
- Abraham KoStudent in an Organized Health Care Education/Training Program1720926009
- Amy KoAddiction (Substance Use Disorder) Counselor1275105496
- Carol Ko, MS, LCGCGenetic Counselor (M.S.)1326598749
- Era KoClinical Social Worker1164060406
- Jamie Ko, PHARMDPharmacist1518267848
- Kristen Ko, NPNurse Practitioner1114275104
- Nancy KoBehavior Technician1871336552
- Taehoon KoBehavior Technician1396684569
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.