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 / MA

JOHN B HEIN, MD

ALLERGY/IMMUNOLOGY

Medical school: MEDICAL COLLEGE OF WISCONSIN

Graduated: 2000

Offers telehealth

NPI: 1649298050

Practice Locations (4)

MASS GENERAL BRIGHAM MEDICAL GROUP NORTHERN MASSACHUSETTS INC

1 HUTCHINSON DR

DANVERS, MA 019233748

9787396950

MASS GENERAL BRIGHAM MEDICAL GROUP NORTHERN MASSACHUSETTS INC

1 PARK WAY

HAVERHILL, MA 018306278

9785213230

MASS GENERAL BRIGHAM COMMUNITY PHYSICIANS INC

260 MERRIMAC ST

NEWBURYPORT, MA 019502192

9784997200

MASS GENERAL BRIGHAM MEDICAL GROUP NORTHERN MASSACHUSETTS INC

260 MERRIMAC ST

NEWBURYPORT, MA 019502192

8882273762

Source: CMS National Downloadable File, September 2026.

JOHN HEIN, MD | HealthCareAtlasUSA