Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Justin Adam Mazzillo, MD

Individual provider Emergency Medicine Physician · NPI 1487924304

Dr. Justin Adam Mazzillo, MD is an Emergency Medicine in Keene, New Hampshire. Graduated from State University of New York at Buffalo School of Medicine in 2010, 16 years ago. Practices with Emergency Associates - University of Rochester, a 60-clinician group and accepts Medicare assignment. Licensed in New Hampshire and Texas.

Years since qualifying
16
Trained at
State University of New York at Buffalo School of Medicine
Licensed in
NH, TX
In the registry since
2012
Specialties on file
2
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

590 Court St
Keene, NH 03431-1719
Phone: (603) 354-5454
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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 16046 (NH)
Emergency Medicine Physician Taxonomy 207P00000X · Licence P1670 (TX)

Record details

NPI number1487924304
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 9, 2012
Last updated in NPPESAugust 28, 2013

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolSTATE UNIVERSITY OF NEW YORK AT BUFFALO SCHOOL OF MEDICINE
Graduated 2010 (16 years in practice)
Group practice Emergency Associates - University Of Rochester — 60 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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