HealthCareAtlasUSA

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Doctors / NJ

MICHAEL S. GRENIS, MD

ORTHOPEDIC SURGERY

Medical school: NEW YORK MEDICAL COLLEGE

Graduated: 1984

NPI: 1669546834

Practice Locations (3)

ORTHONJ LLC

325 PRINCETON AVE

PRINCETON, NJ 085401617

6099248131

PHOENIX REHABILITATION AND HEALTH SERVICES INC

2000 WESTINGHOUSE DR

CRANBERRY TOWNSHIP, PA 160665238

PHOENIX REHABILITATION AND HEALTH SERVICES INC

2000 WESTINGHOUSE DR, SUITE 200

CRANBERRY TWP, PA 160665238

Source: CMS National Downloadable File, September 2026.

MICHAEL GRENIS, MD | HealthCareAtlasUSA