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 / PA

MARK E HENNESSY, CNA

CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA)

Graduated: 2018

NPI: 1184100620

Practice Locations (2)

ALLEGHENY CLINIC

1301 CARLISLE ST

NATRONA HEIGHTS, PA 150651152

7242267380

ALLEGHENY CLINIC

4800 FRIENDSHIP AVE

PITTSBURGH, PA 152241722

Source: CMS National Downloadable File, September 2026.

MARK HENNESSY, CNA | HealthCareAtlasUSA