Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ms. Deborah Troyan, M.S., CCC-A
Audiologist in Detroit, MI · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1407958465
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Registry record
Entity type Individual (Type 1)
Name Ms. Deborah Troyan
Credential M.S., CCC-A
Sex Female
Practice address 4646 John R St, Detroit, MI, 48201
Phone (313) 576-1000
Enumeration date Sep 1, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
231H00000X Audiologist Speech, Language and Hearing Service Providers · License SP 829-AU (MA) Primary
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
Where does Deborah Troyan practice?
The practice location on file with NPPES is in Detroit, MI. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Deborah Troyan?
The National Provider Identifier (NPI) for Deborah Troyan is 1407958465, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.