HealthCareAtlasUSA

This site republishes official CMS/Medicare Care Compare data. It is not medical advice and does not recommend any specific hospital or treatment — for medical decisions, talk to a doctor.

Doctors / NY

MARK H GARDENSWARTZ, MD

NEPHROLOGY

Medical school: UNIVERSITY OF COLORADO SCHOOL OF MEDICINE, DENVER

Graduated: 1975

Also: INTERNAL MEDICINE

Offers telehealth

NPI: 1326063215

Practice Locations (8)

NORTH SHORE-LIJ MEDICAL PC

350 COMMUNITY DR

MANHASSET, NY 110303816

5165623845

NORTH SHORE-LIJ MEDICAL PC

300 COMMUNITY DR

MANHASSET, NY 110303816

NORTH SHORE-LIJ MEDICAL PC

300 COMMUNITY DR LL

MANHASSET, NY 110303816

5165622229

NORTH SHORE-LIJ MEDICAL PC

330 COMMUNITY DR

MANHASSET, NY 110303816

5167082550

NORTH SHORE-LIJ MEDICAL PC

1111 MARCUS AVE

NEW HYDE PARK, NY 110421034

NORTH SHORE-LIJ MEDICAL PC

100 E 77TH ST

NEW YORK, NY 100751850

NORTH SHORE-LIJ MEDICAL PC

110 E 58TH ST

NEW YORK, NY 100221304

NORTH SHORE-LIJ MEDICAL PC

111 E 77TH ST

NEW YORK, NY 100751850

2124343966

Source: CMS National Downloadable File, September 2026.