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

RONALD A ZIMMERMANN, DO

INTERNAL MEDICINE

Medical school: LAKE ERIE COLLEGE OF OSTEOPATHIC MEDICINE, ERIE

Graduated: 2008

Also: HOSPITALIST

NPI: 1346404985

Practice Locations (3)

SOUND PHYSICIANS OF ILLINOIS LLC

812 N LOGAN AVE

DANVILLE, IL 618323752

2174435000

ENDEAVOR HEALTH MEDICAL GROUP

155 E BRUSH HILL RD

ELMHURST, IL 601265658

3312210096

ROCKFORD HOSPITALIST GROUP LLC

1401 E STATE ST

ROCKFORD, IL 611042315

7796964400

Source: CMS National Downloadable File, September 2026.

RONALD ZIMMERMANN, DO | HealthCareAtlasUSA