Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Daniel John Duffy
Behavior Analyst in Pittsburgh, PA · enumerated 2020.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1215541123
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Registry record
Entity type Individual (Type 1)
Name Daniel John Duffy
Sex Male
Practice address 100 N Bellefield Ave, Pittsburgh, PA, 15213
Phone (412) 624-1000
Enumeration date Sep 8, 2020
Last updated in NPPES Sep 8, 2020
Taxonomy & licenses
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 Daniel Duffy practice?
The practice location on file with NPPES is in Pittsburgh, PA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Daniel Duffy?
The National Provider Identifier (NPI) for Daniel Duffy is 1215541123, 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 2020-09-08.