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

KATHRYN MARIE HOYNER, DO

EMERGENCY MEDICINE

Graduated: 2013

NPI: 1578902953

Practice Locations (1)

ECS NORTHERN MICHIGAN PC

416 CONNABLE AVE

PETOSKEY, MI 497702212

8002486777

Source: CMS National Downloadable File, September 2026.

KATHRYN HOYNER, DO | HealthCareAtlasUSA