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Dr. Carol Ibach Duffy, D.O.

Cardiovascular Disease Physician in Shaftsbury, VT · enumerated 2007.

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

National Provider Identifier

1366571663

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Registry record

Entity type Individual (Type 1)
Name Dr. Carol Ibach Duffy
Credential D.O.
Sex Female
Practice address 1988 East Rd, Shaftsbury, VT, 05262
Phone (484) 624-2771
Enumeration date Mar 4, 2007
Last updated in NPPES Aug 28, 2016

Taxonomy & licenses

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License OS010240L (PA) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO 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

Where does Carol Duffy practice?
The practice location on file with NPPES is in Shaftsbury, VT. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Carol Duffy?
The National Provider Identifier (NPI) for Carol Duffy is 1366571663, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-08-28.