Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum
Allergy & Immunology Associates of Ann Arbor, P.C.
Allergy Physician in Ypsilanti, MI · enumerated 2007 · authorized official Jeffrey Leflein, President.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1568671972
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Registry record
Taxonomy & classification
Authorized official
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
What is the NPI number for Allergy & Immunology Associates of Ann Arbor, P.C.?
Who is the authorized official for Allergy & Immunology Associates of Ann Arbor, P.C.?
Providers at this address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-03-17.