Internal Medicine, Gastroenterology
JOSEPH AHN M.D.
Identity confirmed via CMS NPPES · September 30, 2026 · A directory match is not a coverage approval.
Is this your practice? This listing was imported from public provider identity data (CMS NPPES) and has not yet been claimed. Claim this listing to confirm the practice details. Plan acceptance stays unpublished until the practice reports it.
Public record
NPI 1790162204 · enumerated 2015-05-04 · record updated 2020-08-05. Source: CMS NPPES. A listing is not a TRICARE network approval.
NPPES recordGoogle Maps Apple Maps OpenStreetMap
Other names: CHOL AHN
Addresses and phones
- Practice location 200 1ST ST SW, ROCHESTER, MN, 55905-0001 (507) 284-2511 Fax (310) 967-1773 Google Maps Apple Maps OpenStreetMap
- Mailing address 200 1ST ST SW, ROCHESTER, MN, 55905-0001 (507) 284-2511 Google Maps Apple Maps OpenStreetMap
Specialties
- Internal Medicine 207R00000X · License A148213 CA
- Internal Medicine, Gastroenterology 207RG0100X · Primary · License 65447 MN
In this directory
MN Olmsted County Rochester Internal Medicine, Gastroenterology
Locations and evidence
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Practice location
ROCHESTER, MN, 559050001
Accepting new patientsNot reportedCMS NPPES · September 30, 2026
Plan acceptance
- No published plan acceptance yet. Confirm directly with the practice, or claim this listing if it's yours.