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 136 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. Emily LiquidanoBehavior Technician1326802885
  2. Josefina LiraBehavior Technician1558179481
  3. Ryan Lisk, ATCAthletic Trainer1053818484
  4. Nicolai LissnerClinical Social Worker1598106809
  5. Lisa LitmanClinical Social Worker1194183541
  6. Max LitovskyBehavior Technician1245197474
  7. Daniel LittleBehavior Technician1891444592
  8. Rebecca Little, AU.D.Audiologist1700944956
  9. Amy Liu, MDStudent in an Organized Health Care Education/Training Program1134973548
  10. Anthony Liu, M.D.Neonatal-Perinatal Medicine Physician1891889531
  11. Chris Liu, M.D.Student in an Organized Health Care Education/Training Program1275765240
  12. Danielle LiuStudent in an Organized Health Care Education/Training Program1104768811
  13. Darice Liu, M.D.Vascular & Interventional Radiology Physician1336223262
  14. Derek Liu, MDStudent in an Organized Health Care Education/Training Program1346982535
  15. Hsing-Yi LiuSpeech-Language Pathologist1285094110
  16. Isaac LiuBehavior Technician1093691719
  17. Jeffrey Liu, PHARMDPharmacist1790663185
  18. Jessica Liu, MDStudent in an Organized Health Care Education/Training Program1245179563
  19. Jingying LiuBehavior Technician1831018621
  20. Marisa Liu, M.D.Obstetrics & Gynecology Physician1649624800
  21. Ming Liu, MDPsychiatry Physician1689170920
  22. Paul Liu, MDPediatric Critical Care Medicine Physician1548233018
  23. Ruby LiuPharmacist1457706020
  24. Sandy Liu, M.D.Hematology & Oncology Physician1174808224
  25. Sitong LiuClinical Social Worker1063197051
  26. Virginia Liu, M.D, PH.DNeurology with Special Qualifications in Child Neurology Physician1447639182
  27. William Liu, PHARM.D.Geriatric Pharmacist1053498253
  28. Yage LiuBehavior Technician1265315527
  29. Yuk Yeung LiuMarriage & Family Therapist1447847124
  30. Vanelisha LiviBehavior Technician1952277956
  31. Jayme LivingstonPhysician Assistant1013633585
  32. Joshua Livingston, MDEmergency Medicine Physician1932736527
  33. April Liwag, NP-CNurse Practitioner1578007662
  34. Kristina LiwanagBehavior Technician1356929780
  35. Llanyee Liwanpo, M.D.Endocrinology, Diabetes & Metabolism Physician1417171711
  36. Dania Lizalde, LMFTMarriage & Family Therapist1134544182
  37. Grace-Aileen Lizardo, RNRegistered Nurse1588470074
  38. Ian LizardoInternal Medicine Physician1356872030
  39. Sara LizarragaMarriage & Family Therapist1073467486
  40. Hilda LlamasBehavior Analyst1619433232
  41. Summer LlamasBehavior Technician1356128664
  42. Wendy Llamas, LCSWClinical Social Worker1902262157
  43. Isaac Llamas-OchoaBehavior Technician1932813953
  44. Bonnie LoBehavior Technician1932816196
  45. Jordan LoStudent in an Organized Health Care Education/Training Program1952249492
  46. Justin LoBehavior Technician1326825878
  47. Long LoPharmacist1881224772
  48. Miranda LoaizaAssistant Behavior Analyst1598242588
  49. Aura Lobato RosasBehavior Technician1134711237
  50. Maya LoboBehavior Technician1811717929

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.