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 18 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. Elizabeth Hyden, MDRadiation Oncology Physician1780610196
  2. Melanie Ikhtiari, FNP-CFamily Nurse Practitioner1467276303
  3. Sueann Ingersoll, PNP, RN, IBCLCPediatric Nurse Practitioner1295262806
  4. Tze Ip, M.D.Cardiovascular Disease Physician1316924947
  5. Mark Ishimaru, MDOrthopaedic Surgery Physician1821041161
  6. Scott Ispirescu, MDPsychiatry Physician1023148525
  7. Rie Ito, D.C.Chiropractor1205339546
  8. Suzanne Iwai, M.A., SLPSpeech-Language Pathologist1992029078
  9. Rosa Izquierdo, LMFTMarriage & Family Therapist1487953030
  10. Larry JablinAddiction (Substance Use Disorder) Counselor1962066944
  11. Sharon Jack, FNPFamily Nurse Practitioner1831348663
  12. Melissa JacksonMarriage & Family Therapist1891235933
  13. Anita Jacob, MSMarriage & Family Therapist1770671612
  14. Richard Jacob, M.D.Cardiovascular Disease Physician1093792640
  15. Joanna JacoboClinical Social Worker1598436586
  16. Mia Jacobs, LVNLicensed Vocational Nurse1609598408
  17. Susan Jaeckel, B.A.Mental Health Counselor1801144076
  18. Fatemeh Jafari Farshami, M.D.Rheumatology Physician1386049260
  19. Zahra Jafarian-Blourchian, SLPSpeech-Language Pathologist1003953944
  20. Roxanna JahangirianOptometrist1679956940
  21. Navid Jahed, M.D.Diagnostic Radiology Physician1376591925
  22. Allen Jahroumi, MDFamily Medicine Physician1841432507
  23. Rocio Jaime, LPCCMental Health Counselor1578980207
  24. Michael Jakobsen, MDSpecialist1730118118
  25. Omid Jalali, MDOrthopaedic Surgery of the Spine Physician1982227526
  26. Shadi JamaleddinPharmacist1760909915
  27. Kenneth James, M.D.Obstetrics & Gynecology Physician1497782213
  28. Eva Janiszewski, MDGeneral Practice Physician1396812335
  29. Leslie Jansen, RNFARegistered Nurse First Assistant1992726715
  30. Carol Jaramillo, M.A., CCC-SLPSpeech-Language Pathologist1942610506
  31. Alexis Jardine, MS, LMFTMental Health Counselor1528725587
  32. Brenda JassoCommunity Health Worker1700342854
  33. Gloria Jaucian, M.D.Obstetrics & Gynecology Physician1336241660
  34. Shahram Javaheri, M.D.Gastroenterology Physician1497861439
  35. Christina Jenkins, MDColon & Rectal Surgery Physician1881035814
  36. Stephen Jenkins, M.D.Neurology Physician1881619807
  37. Cathearine Jenkins Hall, PHDClinical Neuropsychologist1588694954
  38. Diana Jeon, PHARM.D.Pharmacist1336652916
  39. Jung JeonPharmacist1770937328
  40. Eveline Jho, CPNP-PCPediatric Nurse Practitioner1326804253
  41. Fen Jiang, MDMedical Oncology Physician1831312289
  42. Jose JimenezMarriage & Family Therapist1871001578
  43. Greta JoAnesthesiology Physician1417122086
  44. Cindy John, PH.D.Clinical Child & Adolescent Psychologist1598960148
  45. Alan Johnson, D.D.S.General Practice Dentistry1902990542
  46. Arthur Johnson, MDOral & Maxillofacial Surgery (D.M.D.)1508913021
  47. Carrie Johnson, MFTMarriage & Family Therapist1962073452
  48. Jaime JohnsonOptometrist1679908032
  49. Johnathan JohnsonCase Manager/Care Coordinator1851802649
  50. Joy JohnsonSpeech-Language Pathologist1033041306

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.