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 M MASSAK, DO

INTERVENTIONAL RADIOLOGY

Medical school: LAKE ERIE COLLEGE OF OSTEOPATHIC MEDICINE, ERIE

Graduated: 2013

Also: DIAGNOSTIC RADIOLOGY

NPI: 1952740532

Practice Locations (15)

WELLSPAN MEDICAL GROUP

112 N 7TH ST

CHAMBERSBURG, PA 172011720

7172677164

WELLSPAN MEDICAL GROUP

112 N 7TH ST, WELLSPAN NEONATOLOGY

CHAMBERSBURG, PA 172011720

7178512613

WELLSPAN MEDICAL GROUP

12 ST PAUL DR

CHAMBERSBURG, PA 172011035

WELLSPAN MEDICAL GROUP

446 N READING RD FL, 2 WELLSPAN THORACIC SURGERY

EPHRATA, PA 175229802

7173565864

WELLSPAN MEDICAL GROUP

446 N READING RD

EPHRATA, PA 175229802

WELLSPAN MEDICAL GROUP

147 GETTYS ST, PO BOX 3786

GETTYSBURG, PA 173252534

7173344113

WELLSPAN MEDICAL GROUP

147 GETTYS ST

GETTYSBURG, PA 173252534

7173342121

WELLSPAN MEDICAL GROUP

40 V TWIN DR

GETTYSBURG, PA 173257878

WELLSPAN MEDICAL GROUP

4 TH AND WALNUT STS, 2ND FLOOR

LEBANON, PA 170426123

7172703751

WELLSPAN MEDICAL GROUP

845 HELEN DR

LEBANON, PA 170427493

7176392955

WELLSPAN MEDICAL GROUP

845 HELEN DR, SUITE 200

LEBANON, PA 170427493

7174665420

WELLSPAN MEDICAL GROUP

501 E MAIN ST

WAYNESBORO, PA 172682353

WELLSPAN MEDICAL GROUP

914 W MARKET ST, AUTUMN HOUSE WEST

YORK, PA 17403

7178457214

WELLSPAN MEDICAL GROUP

2618 E MARKET ST, AUTUMN HOUSE

YORK, PA 17403

7178457214

WELLSPAN MEDICAL GROUP

25 MONUMENT RD

YORK, PA 174035073

Source: CMS National Downloadable File, September 2026.