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 A NELSON, OD

OPTOMETRY

Graduated: 2018

NPI: 1669959607

Practice Locations (1)

COSTELLO SR - ALLEN OPTOMETRISTS PLLC

131 MAIN ST, SUITE 202

ONEIDA, NY 134211645

3153634942

Source: CMS National Downloadable File, September 2026.

MARK NELSON, OD | HealthCareAtlasUSA