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

Mr. Dennis K Duffy, PA

Individual provider Physician Assistant · NPI 1932136447

Mr. Dennis K Duffy, PA is a Physician Assistant in Stony Brook, New York. Graduated from State University of New York at Stony Brook, School of Medicine in 1992, 34 years ago. Practices with New York Spine and Brain Surgery, University Faculty Practice Corporat, a 59-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
34
Trained at
State University of New York at Stony Brook, School of Medicine
Licensed in
NY
In the registry since
2006
What do these letters mean?
PA — Physician Assistant
A licensed clinician who examines, diagnoses and treats under a physician's supervision.

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Practice location Partly verified

Some contact details are missing from the federal record.

New York Spine And Brain Surgery Hsc T12 Rm 080
Stony Brook, NY 11794-8122
Phone: (631) 444-1116
Fax: (631) 444-1535
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence 004529 (NY)

Record details

NPI number1932136447
Entity typeIndividual (Type 1)
GenderMale
Credentials PA
Sole proprietorNo
NPI enumeratedJune 28, 2006
Last updated in NPPESJune 11, 2014

Medicare enrollment

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

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolSTATE UNIVERSITY OF NEW YORK AT STONY BROOK, SCHOOL OF MEDICINE
Graduated 1992 (34 years in practice)
Group practice New York Spine And Brain Surgery, University Faculty Practice Corporat — 59 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Other providers in Stony Brook