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 / MO

OLIVIA FAETH HASSELFELD, PA

PHYSICIAN ASSISTANT

Graduated: 2020

NPI: 1194334094

Practice Locations (3)

WASHINGTON UNIVERSITY

11133 DUNN RD

SAINT LOUIS, MO 631366163

3143627603

WASHINGTON UNIVERSITY

10 HOSPITAL DR

SAINT PETERS, MO 633761659

8006472098

WASHINGTON UNIVERSITY

10 HOSPITAL DR MOB, 2 BJSPH SITEMAN CANCER CENTER

ST PETERS, MO 633761659

8006472098

Source: CMS National Downloadable File, September 2026.

OLIVIA HASSELFELD, PA | HealthCareAtlasUSA