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 / FL

LYNN VAN UMMERSEN, MD

HEMATOLOGY/ONCOLOGY

Medical school: UNIVERSITY OF MASSACHUSETTS MEDICAL SCHOOL

Graduated: 1991

NPI: 1447211818

Practice Locations (1)

FLORIDA CANCER SPECIALISTS AND RESEARCH INSTITUTE, LLC

2824 ENTERPRISE RD

ORANGE CITY, FL 327638428

3867747411

Source: CMS National Downloadable File, September 2026.

LYNN VAN UMMERSEN, MD | HealthCareAtlasUSA