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 139 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. Mayra Lopez Marcos, BCBABehavior Analyst1356927289
  2. Sherlyn Lopez MartinezBehavior Technician1609707041
  3. Aliyah Lopez MuroBehavior Technician1801785878
  4. Kenia Lopez RamirezBehavior Technician1932928264
  5. Oliver Lopez RamosBehavior Technician1750197596
  6. Favie Lopez SilvaBehavior Technician1467305490
  7. Alex Lopez ZaragozaBehavior Technician1538033592
  8. Alexandra Lopez-Aguiar, M.D.Surgical Oncology Physician1477972040
  9. Jessica Lopez-GaonaBehavior Technician1760278006
  10. Angela Lopez-Morales, MAMarriage & Family Therapist1801068416
  11. Karina Lopez-VillegasMarriage & Family Therapist1396379079
  12. McCall Lopiccolo, SLPASpeech-Language Assistant1053863787
  13. Karla Lorente, MDUrogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician1467956672
  14. Janna Ariane LorenzoDay Training/Habilitation Specialist1639802333
  15. Joan Lorton, LVNLicensed Vocational Nurse1659126761
  16. Golnaz LotfalipourBehavior Technician1407476740
  17. Shahram Lotfipour, M.D.Emergency Medicine Physician1639281322
  18. Ira Lott, MDPediatric Neurodevelopmental Disabilities Physician1720030760
  19. Jerry Lou, MDNeuropathology Physician1972183317
  20. Stephen Loughran, N.P.Family Nurse Practitioner1801865308
  21. Allison Louie, PAPhysician Assistant1235202391
  22. Kara Louie, SLPSpeech-Language Pathologist1740563139
  23. Lauren Louie, PHARMDPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1225810641
  24. Tawny LouieAnesthesiology Physician1972064681
  25. Christine LouisStudent in an Organized Health Care Education/Training Program1619762291
  26. Enas LouzyGenetic Counselor (M.S.)1740942143
  27. Tiffany LovatoFamily Nurse Practitioner1972064962
  28. Robin LovellAddiction (Substance Use Disorder) Counselor1184980351
  29. Leyla LovinehCommunity Health Worker1588418610
  30. Wendy LovoHealth & Wellness Coach1649980624
  31. Cheyenne Low, MDStudent in an Organized Health Care Education/Training Program1669273769
  32. Sara LoweBehavior Technician1932032448
  33. Nicola Lowrey, PAMedical Physician Assistant1760419428
  34. Julius LoyolaRegistered Nurse1205362647
  35. Gloria LozaBehavior Technician1811600562
  36. Jesus LozacruzCommunity Health Worker1922852516
  37. Ruben LozadaAssistant Behavior Analyst1508675992
  38. Alexis LozanoBehavior Technician1538012513
  39. Daniel LozanoBehavior Analyst1518546100
  40. Esmeralda LozanoBehavior Technician1780267898
  41. Rebecca LozanoSpeech-Language Pathologist1114736824
  42. Di Lu, MDAnatomic Pathology Physician1831145564
  43. Edwin LuBehavior Technician1275453904
  44. Grace Lu, RPHPharmacist1760701585
  45. Hope Lu, RNCertified Registered Nurse Anesthetist1487224978
  46. Kim Lu, M.D.Pediatric Pulmonology Physician1265633887
  47. Sheldon Lu, DMDPeriodontics1306039169
  48. Tien LuEmergency Medicine Physician1942816202
  49. Tommy LuBehavior Technician1598516221
  50. Wanchun Lu, NPNurse Practitioner1730413758

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.