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 / MI

RYAN A SULLIVAN, MD

INTERNAL MEDICINE

Medical school: WAYNE STATE UNIVERSITY SCHOOL OF MEDICINE

Graduated: 2002

Offers telehealth

NPI: 1174605653

Practice Locations (1)

CRYSTAL LAKE CLINIC PC

2198 US HWY 31 S

MANISTEE, MI 496609618

2317233567

Source: CMS National Downloadable File, September 2026.