Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Erin I Duffy, MD

Individual provider Emergency Medicine Physician · NPI 1497215669

Erin I Duffy, MD is an Emergency Medicine in Stony Brook, New York. Graduated from State University of New York at Stony Brook, School of Medicine in 2019, 7 years ago. Practices with John T Mather Memorial Hospital, a 180-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
7
Trained at
State University of New York at Stony Brook, School of Medicine
Licensed in
NY
In the registry since
2019
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

101 Nicolls Rd
Stony Brook, NY 11794-2119
Phone: (631) 689-8333
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 314438-01 (NY)

Record details

NPI number1497215669
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 22, 2019
Last updated in NPPESJanuary 27, 2023
Certification dateJanuary 27, 2023
Mailing address101 Nicolls Rd, Stony Brook, NY 11794-0001

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyEMERGENCY MEDICINE
Medical schoolSTATE UNIVERSITY OF NEW YORK AT STONY BROOK, SCHOOL OF MEDICINE
Graduated 2019 (7 years in practice)
Group practice John T Mather Memorial Hospital — 180 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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