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 222 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. Maria Shier, MDAnesthesiology Physician1083794234
  2. Gerald Shigekawa, D.C.Chiropractor1740348903
  3. Sara ShigekawaBehavior Technician1598657843
  4. Evan ShihInternal Medicine Physician1013440320
  5. Renshy Shih, D.O.Internal Medicine Physician1760879852
  6. Jessica ShillBehavior Technician1225681265
  7. Kenneth ShimBehavior Technician1790562569
  8. Prisca ShimBehavior Technician1922783927
  9. Hal Shimazu, MDFamily Medicine Physician1073682241
  10. Hilda Shimizu, B.SCase Manager/Care Coordinator1063768794
  11. Albert ShinCritical Care Medicine Nurse Practitioner1558909705
  12. Caitlin ShinStudent in an Organized Health Care Education/Training Program1932047107
  13. Erica ShinStudent in an Organized Health Care Education/Training Program1023878063
  14. Eugene ShinDiagnostic Radiology Physician1972064996
  15. Gina ShinBehavior Technician1962336065
  16. Jennifer ShinPharmacist1467152421
  17. Jeong Yeon Shin, FNPNurse Practitioner1487010658
  18. Susie Shin, MDPediatrics Physician1407505167
  19. Yael ShinarAnesthesiology Physician1225562135
  20. Gillian ShinerBehavior Analyst1255050654
  21. Gen Shinozaki, MDPsychiatry Physician1255474979
  22. Patricia Shiokari, COTAOccupational Therapy Assistant1972707156
  23. Trisha ShipcottSpeech-Language Pathologist1659218147
  24. Jason ShipleyCounselor1679047070
  25. Sholay Shirazi, ASWSocial Worker1730974585
  26. Layla Shirkhoda, M.D.Diagnostic Radiology Physician1629432604
  27. Layla Shirkhorshidi, PA-CPhysician Assistant1114653144
  28. Ali ShishehgarPharmacist1013514314
  29. Jennifer Shively, N.P.Critical Care Pediatric Nurse Practitioner1003165267
  30. Mayada Shmara, DDSDentist1770819807
  31. Gary ShmorgonInternal Medicine Physician1689323305
  32. Kyna Shnayderman, M.D.Family Medicine Physician1831455534
  33. Inna Shniter, M.D.Emergency Medicine Physician1013327360
  34. Dorothy Shofner, CERTIFIED MASSAGE THMassage Therapist1659865616
  35. Shalizeh Shokooh, M.D.Cardiovascular Disease Physician1659308591
  36. Amir Shokrae, M.D.Specialist1306934112
  37. Cynthia Sholly, MDPediatrics Physician1255411401
  38. Aidan ShonBehavior Technician1811770530
  39. Hakeem Shoola, NPNurse Practitioner1831873918
  40. Summer ShoreyBehavior Technician1104549443
  41. Kenneth Shortt, M.D.Internal Medicine Physician1649767294
  42. Daniel Shrey, M.D.Neurology with Special Qualifications in Child Neurology Physician1518129162
  43. Andrew ShulenbergerAddiction (Substance Use Disorder) Counselor1033785233
  44. Andrew Shulman, M.D., PH.D.Pediatric Rheumatology Physician1760649842
  45. Eddie Shum, DOFamily Medicine Physician1619559226
  46. Christina Shum Zhou, PHARMDInfectious Diseases Pharmacist1447195821
  47. Jill SiadorLicensed Psychiatric Technician1366884058
  48. Mercedes SibrianBehavior Technician1750214540
  49. Shannon Sicat, NPGerontology Nurse Practitioner1225677198
  50. Maricruz Sida GalvanMental Health Counselor1790409712

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.