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 / MI

GREGORIO UY TAN, MD

CARDIOVASCULAR DISEASE (CARDIOLOGY)

Graduated: 1979

NPI: 1316926751

Practice Locations (2)

ASCENSION BORGESS HOSPITAL

1521 GULL RD

KALAMAZOO, MI 490481640

2692265165

ASCENSION MEDICAL GROUP PROMED

7901 ANGLING RD

PORTAGE, MI 490240714

2693248600

Source: CMS National Downloadable File, September 2026.

GREGORIO TAN, MD | HealthCareAtlasUSA