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

OSCAR JEFFERSON GRYN, DO

OTOLARYNGOLOGY

Medical school: DES MOINES UNIVERSITY OF OSTEOPATHIC MEDICINE AND HEALTH SCIENCES

Graduated: 2021

NPI: 1619554292

Practice Locations (2)

3 WILLOW AVE

HICKSVILLE, NY 118014611

PO BOX

PHILADELPHIA, PA 19182

Source: CMS National Downloadable File, September 2026.

OSCAR GRYN, DO | HealthCareAtlasUSA