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

Mark A Gelfand, MD

Individual provider Plastic Surgery Physician · NPI 1659546992

Mark A Gelfand, MD is a Plastic and Reconstructive Surgery in East Setauket, New York. Graduated from State University of Ny Upstate Medical University in 2000, 26 years ago. Practices with Legacy Clinics LLC, a 718-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
26
Trained at
State University of Ny Upstate Medical University
Licensed in
NY
In the registry since
2008
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

24 Research Way
East Setauket, NY 11733-3487
Phone: (631) 444-4666
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Plastic Surgery Physician (primary) Taxonomy 208200000X · Licence 234242 (NY)

Record details

NPI number1659546992
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 28, 2008
Last updated in NPPESApril 28, 2008

Medicare enrollment

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

Medicare specialtyPLASTIC AND RECONSTRUCTIVE SURGERY
Medical schoolSTATE UNIVERSITY OF NY UPSTATE MEDICAL UNIVERSITY
Graduated 2000 (26 years in practice)
Group practice Legacy Clinics Llc — 718 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in East Setauket