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 179 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. Yosselyne OrtegaBehavior Technician1538881560
  2. Janet Ortega FloresBehavior Technician1700596251
  3. Cindy Ortega GonzalezBehavior Technician1477396398
  4. Ernesto Ortega TobarBehavior Technician1265203483
  5. Alexyss OrtizBehavior Technician1043039357
  6. Alyssa Ortiz, NONEBehavior Technician1063156990
  7. Caroline OrtizBehavior Technician1184274599
  8. Derek OrtizBehavior Technician1083473235
  9. Destiny OrtizBehavior Technician1477195592
  10. Janet Ortiz, BAMental Health Counselor1336267020
  11. Jesus OrtizOther Technician1902414386
  12. Kelsey OrtizBehavior Analyst1730653098
  13. Ryan OrtizBehavior Technician1710828793
  14. Sabrina OrtizBehavior Technician1720840101
  15. Sahayra OrtizMental Health Counselor1467169110
  16. Sofia Ortiz, NONEBehavior Technician1740938893
  17. Tania OrtizBehavior Technician1255031225
  18. Tony OrtizPsychologist1932394947
  19. Victoria OrtizBehavior Technician1730864208
  20. Michelle Ortiz BarrancoOther Technician1568039444
  21. Itzel Ortiz GoparBehavior Technician1053015891
  22. Oscar OrtunoBehavior Technician1003645813
  23. Rosa OrtunoBehavior Technician1194501247
  24. Kaitlyn OsakoBehavior Technician1356025456
  25. Julie Osborn, L.C.S.W.Clinical Social Worker1760572028
  26. Megan Osborn, M.D.Emergency Medicine Physician1285810689
  27. Timothy Osborn, D.C.Chiropractor1841276680
  28. Carleen Osborne, MSWSocial Worker1104451988
  29. Quinten OsborneBehavior Technician1992453294
  30. Sadea OsbourneBehavior Technician1245183953
  31. Maria Isabel OsegueraDay Training/Habilitation Specialist1407717168
  32. Cheryl Osman, LCSWMental Health Counselor1427378231
  33. Doaa OsmanBehavior Technician1003793506
  34. Diana OsmolianBehavior Technician1316804529
  35. Anthony OsorioBehavior Technician1326768375
  36. Jefferson OsorioAssistant Behavior Analyst1518732494
  37. Sheyla Osorio HernandezBehavior Technician1871383000
  38. Tasea OspinaCognitive & Behavioral Psychologist1730830795
  39. Kimberly Ossman, LCSWClinical Social Worker1699008755
  40. Maria OstheimerRehabilitation Practitioner1568644409
  41. Arsha Ostowari, MDStudent in an Organized Health Care Education/Training Program1598225658
  42. Olivia Ostunio, RDNRegistered Dietitian1881577559
  43. Stavroula Otis, M.D.Hematology & Oncology Physician1477677557
  44. Sai-Hong I Ou, MDHematology & Oncology Physician1639259872
  45. Shana Ouano, ACNPC-AG, AGACNP-BCNurse Practitioner1770262172
  46. Sabrina Oukil, M.D.Pain Medicine (Anesthesiology) Physician1932558020
  47. Karina Ousley, LCSWClinical Social Worker1215752209
  48. Dakota OuztsBehavior Technician1255209763
  49. Jeff OvertonAddiction (Substance Use Disorder) Counselor1356129225
  50. Kassandra OviedoBehavior Technician1265116438

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.