NPPES file of Aug 9, 2026

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 115 of 265.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

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

  1. Nahyun KangStudent in an Organized Health Care Education/Training Program1558164210
  2. Stacey Kang, PHARM.DPharmacist1265044465
  3. Steve Kang, MDOrthopaedic Foot and Ankle Surgery Physician1538393889
  4. Steve KangMedical Physician Assistant1801529375
  5. Vanessa Kang, M.S. CCC-SLPSpeech-Language Pathologist1992497556
  6. Veronica Kang, PMHNPNurse Practitioner1801815998
  7. Myron Kanofsky, M.D.Obstetrics & Gynecology Physician1083679377
  8. Stanley Kanow, MDPediatric Adolescent Medicine Physician1548395122
  9. Daniel Kantarovich, DDSDentist1568656007
  10. Cyndy Kao, RNRegistered Nurse1043606601
  11. Nandita KapilaBehavior Technician1619835733
  12. Jesse Kaplan, M.D.Orthopaedic Hand Surgery Physician1538579107
  13. Jonathan Kaplan, M.D.Orthopaedic Surgery Physician1467751685
  14. Nicolas Kaplan, MDStudent in an Organized Health Care Education/Training Program1750175295
  15. Ashok Kar, M.D.Specialist1073653119
  16. Amar KarabegBehavior Technician1568111847
  17. Anupama KarehallirajuDentist1285825372
  18. Afshin Karimi, MDDiagnostic Neuroimaging (Radiology) Physician1952511214
  19. Danielle Karimi, M.D.Pain Medicine (Physical Medicine & Rehabilitation) Physician1629253497
  20. Saman Karimi, MD, MSAnatomic Pathology & Clinical Pathology Physician1538620927
  21. Sandhya KarkunOccupational Therapist1174912885
  22. David Karlin, M.D.Diagnostic Radiology Physician1477552016
  23. Linda Karmelich, LMFTMarriage & Family Therapist1437013208
  24. Savanna KarmueBehavior Technician1619786084
  25. Victoria KarnesBehavior Technician1881576254
  26. William Karnes, MDGastroenterology Physician1881652998
  27. Tulasi Deepthi Karri, MDPediatrics Physician1912493107
  28. Feross Karrit, MDStudent in an Organized Health Care Education/Training Program1477271278
  29. Isuru Karunatillaka, MDStudent in an Organized Health Care Education/Training Program1689512485
  30. Himala Kashmiri, D.O.Pediatric Endocrinology Physician1386808285
  31. Ismail Kasimoglu, MD, PHD, MBAEndocrinology, Diabetes & Metabolism Physician1578095774
  32. Karen Kassabian, APNAdult Health Nurse Practitioner1215130570
  33. Ruby Kassaseya, PSY.D.Psychologist1508541897
  34. Jasmine KassemBehavior Technician1538047535
  35. Harikumara Kathi, MDStudent in an Organized Health Care Education/Training Program1235924457
  36. Jaimee Kato, MDStudent in an Organized Health Care Education/Training Program1063271138
  37. Jessica Katrandjiev, NONEBehavior Technician1609588052
  38. Blake Katsev, MDStudent in an Organized Health Care Education/Training Program1619815073
  39. Hiroshi Katsumi, M.D.Urology Physician1124297395
  40. Alex Katz, M.D.Pediatric Pulmonology Physician1124474655
  41. Mitchell Katz, MDPediatric Gastroenterology Physician1366530107
  42. Stephanie KatzStudent in an Organized Health Care Education/Training Program1376395301
  43. Robert Katzer, M.D.Emergency Medicine Physician1467612580
  44. Carlie KaufmanBehavior Technician1134836919
  45. Elizabeth KaufmanHematology & Oncology Physician1568995421
  46. Kathryn Kaufman, MS, RD, PA-CMedical Physician Assistant1720536071
  47. Stephen Kaufman, D.C.Chiropractor1942479522
  48. Gina KaulenBehavior Technician1699454439
  49. Charles Kaupke, MDNephrology Physician1770542920
  50. Harmandeep KaurMarriage & Family Therapist1053809624

The largest California cities

  1. Los Angeles69,537
  2. San Diego52,937
  3. San Francisco38,143
  4. Sacramento33,083
  5. San Jose20,925

All of California →

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.