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Orthodontics and Dentofacial Orthopedics

Ji Hyun Ahn, DDS

Sees patients in Rochester, MN · Minnesota

Summary

Dr. Ji Hyun Ahn, DDS is an orthodontist at 200 1st St SW, Rochester, MN 55905. Phone: (507) 284-2511. Accepts Medicare assignment. NPI 1023416120. Source: CMS National Downloadable File, updated October 2, 2026.

  • Specialty: Orthodontist (Medicare lists Orthodontics and Dentofacial Orthopedics)
  • Address: 200 1st St SW, Rochester, MN 55905 · Directions
  • Phone: (507) 284‑2511
  • Medicare: Accepts Medicare assignment
  • Group practice: Mayo Clinic
  • Dental school: graduated 2013 (13 years since dental school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Ji Hyun Ahn, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Ji Hyun Ahn accept Medicare assignment?
Yes. Medicare's clinician data says Ji Hyun Ahn accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
What is Ji Hyun Ahn's NPI number?
1023416120. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Ji Hyun Ahn is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Ji Hyun Ahn as a member of this group (CMS data updated October 2, 2026).

  • Mayo Clinic4,956 clinicians in the group

Specialties

Find other clinicians: Orthodontics and Dentofacial Orthopedics, Minnesota →

Other clinicians in Mayo Clinic

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialDDS
Graduation year2013 (13 years since dental school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1023416120
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians