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 / NH

MARK L TIMMERMAN, MD

FAMILY PRACTICE

Medical school: UNIVERSITY OF IOWA, RJ & L CARVER COLLEGE OF MEDICINE

Graduated: 1984

NPI: 1972525574

Practice Locations (3)

454 DANIEL WEBSTER HWY

MANCHESTER, NH 030543699

6034248120

454 DANIEL WEBSTER HWY

Merrimack, NH 030543699

454 DANIEL WEBSTER HWY, UNIT E

MERRIMACK, NH 030543699

Source: CMS National Downloadable File, September 2026.

MARK TIMMERMAN, MD | HealthCareAtlasUSA