DR. PATRICK EMMET DUFFY MD
NPI 1619885712
Internal Medicine in Bethesda, MD
About Dr. Patrick Emmet Duffy Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. PATRICK EMMET DUFFY MD (NPI 1619885712) is an individual internal medicine provider in Bethesda, Maryland, licensed in Virginia (0101043143) and active in the NPI registry since August 2026.
NPPES Registry Identity
Specialties & Licenses
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Patrick Duffy's NPI number?
The NPI number for Patrick Duffy is 1619885712. It was assigned to this individual provider in the NPPES registry on August 31, 2026.
Where is Patrick Duffy located?
Patrick Duffy practices at Nih Clinical Center 10 Center Drive, Bethesda, MD 20892. The listed phone number is (240) 381-1317.
What is Patrick Duffy's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
When was this NPI record last updated?
The NPPES record for Patrick Duffy was last updated on August 31, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.