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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Eric Duffy, D.O.

Surgery Physician in Port St Lucie, FL · enumerated 2014 · practices at Diabetes Thyroid & Hormone Center of the Treasure Coast, Pllc.

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

National Provider Identifier

1376956045

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Registry record

Entity type Individual (Type 1)
Name Dr. Eric Duffy
Credential D.O.
Sex Male
Practice address Port St Lucie, FL, 34952
Phone (772) 335-8446
Fax (772) 335-8499
Enumeration date Jun 10, 2014
Last updated in NPPES Nov 2, 2020

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License S1082 (TX) Secondary
390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary
208600000X Surgery Physician Allopathic & Osteopathic Physicians · License OS17089 (FL) 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 Eric Duffy practice?
The practice location on file with NPPES is in Port St Lucie, FL. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Eric Duffy?
The National Provider Identifier (NPI) for Eric Duffy is 1376956045, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-11-02.