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

Dr. John E Leavens, MD

Individual provider Emergency Medicine Physician · NPI 1730117367

Dr. John E Leavens, MD is an Emergency Medicine in Stony Brook, New York. Graduated from State University of New York at Stony Brook, School of Medicine in 2001, 25 years ago. Practices with Stony Brook Family and Preventive Medicine, University Faculty Practic, a 43-clinician group, accepts Medicare assignment and offers telehealth. Licensed in New York.

Years since qualifying
25
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?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

University Hospital L4
Stony Brook, NY 11794-0001
Phone: (631) 444-2499
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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 227526 (NY)

Record details

NPI number1730117367
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 30, 2006
Last updated in NPPESJuly 8, 2007
Mailing addressPo Box 1559, Stony Brook, NY 11790-0989

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Also practisesFAMILY PRACTICE
Medical schoolSTATE UNIVERSITY OF NEW YORK AT STONY BROOK, SCHOOL OF MEDICINE
Graduated 2001 (25 years in practice)
Group practice Stony Brook Family And Preventive Medicine, University Faculty Practic — 43 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations3 on file with Medicare

Other providers in Stony Brook