NPPES file of Aug 9, 2026

Doctors and health care providers in Mission Viejo, CA

2,156 individual NPPES records list a practice address in Mission Viejo, 103rd of 812 California cities. The largest group is marriage & family therapist: 218, 10% of the city's records, against 6% across California. Page 7 of 44.

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

Mission Viejo in California

  • Rank in California103rd of 812 cities by records
  • Share of the state0.2% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups18.4% of all records

Compared with California as a whole, Mission Viejo has 3.1× the state's share of optometrist records and 0.12× its share of behavior technician records.

Providers in Mission Viejo, alphabetically

  1. Chrystal ChafeyAddiction (Substance Use Disorder) Counselor1598358079
  2. Shawna ChamberlinMarriage & Family Therapist1164960175
  3. Courtney Chan, PT, DPT (DR OF PT)Physical Therapist1821321407
  4. Jessica Chan, MDEndocrinology, Diabetes & Metabolism Physician1275927485
  5. Sharla Chan, OTOccupational Therapist1386244515
  6. Visoth Chan, DPMFoot & Ankle Surgery Podiatrist1669716791
  7. Luis Chanes, M.D.Ophthalmology Physician1043277361
  8. Andrew ChangPediatric Dentistry1083992994
  9. Elmer Chang, M.D.Gastroenterology Physician1912083353
  10. Helen Chang, MDInternal Medicine Physician1639134687
  11. Jeremy Chang, MDObstetrics & Gynecology Physician1679004691
  12. John Chang, MDAnesthesiology Physician1598704827
  13. Sandra Chang, PHARMDPharmacist1326319450
  14. Cassidy Charette, RPHPharmacist1316573660
  15. Cristine Chastain, LCSWClinical Social Worker1811072598
  16. Rita ChastainAddiction (Substance Use Disorder) Counselor1528666542
  17. Umara Chaudhry, CNMAdvanced Practice Midwife1831900281
  18. Om Chaurasia, MDGastroenterology Physician1528136702
  19. Melissa ChavezRehabilitation Practitioner1437963352
  20. Patricia ChavezPsychiatric/Mental Health Nurse Practitioner1275766487
  21. Ashley ChaviraMarriage & Family Therapist1750226528
  22. Hillary Chavis, OTRLOccupational Therapist1386840494
  23. Mary CheesebouroughOccupational Therapist1376478628
  24. James Chen, M.D.Adult Reconstructive Orthopaedic Surgery Physician1104210152
  25. May Chen, MDNephrology Physician1881772887
  26. Torin ChenardOrthodontics and Dentofacial Orthopedics Dentistry1972660694
  27. Christine Cheng, O.D.Optometrist1700279718
  28. Yi-Jywe Cheng, NURSE PRACTITIONERNurse Practitioner1053706341
  29. Gregory Cherney, D.C.Chiropractor1588714422
  30. Roxanne Cherry, PH.D. MFTMarriage & Family Therapist1124046297
  31. Shabnam Cherry, MA, MFTMarriage & Family Therapist1265526982
  32. Kantha Chhuon, O.D.Optometrist1598959397
  33. Joo Chi, O.D.Optometrist1285785949
  34. Maria Chiang, PHARM. D.Pharmacist1235515925
  35. Diane Chiri, PTContractor1578760583
  36. Fereshteh Chitsaz, PHARMACISTPharmacist1811405723
  37. Jaehyun Cho, PAMedical Physician Assistant1053952002
  38. Jennie Cho, PHARMDPharmacist1235406406
  39. Michael Cho, MDOtolaryngology Physician1750313508
  40. Esther ChoeBehavior Technician1922702273
  41. Andrew Choi, DDSGeneral Practice Dentistry1083650493
  42. Catherine ChoiSpeech-Language Pathologist1558297796
  43. Chanwon Choi, L.ACAcupuncturist1457678948
  44. Ethan ChoiBehavior Analyst1801629597
  45. Jae Choi, MDStudent in an Organized Health Care Education/Training Program1992371884
  46. Kayla ChoiBehavior Technician1932895711
  47. Rachel Cholula, BAStudent in an Organized Health Care Education/Training Program1477840049
  48. Jessica ChouCommunity Health Registered Nurse1255535696
  49. William Chou, MDRadiation Oncology Physician1790713253
  50. Ashton Christian, MDSurgery Physician1699207704

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

Mission Viejo, California appears in the CMS National Plan and Provider Enumeration System with 2,156 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 Mission Viejo - 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 Mission Viejo 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 Mission Viejo is weighted toward Marriage & Family Therapist (218 clinicians, followed by Pharmacist with 99 and Physical Therapist with 79). 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, Mission Viejo reports roughly 5.5 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 Mission Viejo practice address, a coverage gap Mission Viejo patients typically fill by traveling to a larger nearby hub.

For Mission Viejo 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 Mission Viejo, CA?

There are 2,156 registered healthcare providers in Mission Viejo, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Mission Viejo?

The most common specialties in Mission Viejo are Marriage & Family Therapist, Pharmacist, Physical Therapist, Clinical Social Worker, Speech-Language Pathologist. Marriage & Family Therapist has the most providers with 218.

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.