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 / IL

HOLLY RYAN, DO

EMERGENCY MEDICINE

Graduated: 2022

NPI: 1821739475

Practice Locations (1)

OSF MULTI-SPECIALTY GROUP

1100 E NORRIS DR

OTTAWA, IL 613501604

8154333100

Source: CMS National Downloadable File, September 2026.

HOLLY RYAN, DO | HealthCareAtlasUSA