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John D. Callahan Jr., D.D.S., M.S.

Orthodontics and Dentofacial Orthopedics Dentistry in Fayetteville, NY · enumerated 2007 · practices at Callahan, Flanagan & Smith Orthodontics.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1043347438

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Registry record

Entity type Individual (Type 1)
Name John D. Callahan Jr.
Credential D.D.S., M.S.
Sex Male
Practice address 300 S Manlius St, Fayetteville, NY, 13066
Phone (315) 663-0295
Enumeration date Feb 27, 2007
Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

1223X0400X Orthodontics and Dentofacial Orthopedics Dentistry Dental Providers · License 0365091 (NY) Primary
DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential

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.

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Frequently asked questions

What is the NPI number for John Callahan?
The National Provider Identifier (NPI) for John Callahan is 1043347438, a Type 1 (individual) record in the CMS NPPES registry.
Where does John Callahan practice?
The practice location on file with NPPES is in Fayetteville, NY. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.