HealthCareAtlasUSA

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Doctors / NJ

JOHN GREGG, DO

FAMILY PRACTICE

Graduated: 2003

NPI: 1013118660

Practice Locations (2)

SUMMIT MEDICAL GROUP PA

1 DIAMOND HILL RD

BERKELEY HEIGHTS, NJ 079222104

9082734300

JERSEY IRISH MEDICAL

1085 WHITEHORSE MERCERVILLE RD

HAMILTON TOWNSHIP, NJ 086101424

2156489000

Source: CMS National Downloadable File, September 2026.

JOHN GREGG, DO | HealthCareAtlasUSA