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 / CT

JANSEN M TIONGSON, MD

EMERGENCY MEDICINE

Graduated: 2006

Offers telehealth

NPI: 1811182801

Practice Locations (2)

CITY MEDICAL OF UPPER EAST SIDE PLLC

506 WESTPORT AVE

NORWALK, CT 068514424

2037064170

CITY MEDICAL OF UPPER EAST SIDE PLLC

212 E 23RD ST

NEW YORK, NY 100104605

6465180163

Source: CMS National Downloadable File, September 2026.

JANSEN TIONGSON, MD | HealthCareAtlasUSA