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 / NY

TATIANA AMBARUS, MD

OBSTETRICS/GYNECOLOGY

Graduated: 1993

NPI: 1326174715

Practice Locations (2)

NORTH SHORE HEMATOLOGY ONCOLOGY ASSOCIATES PC

217 PORTION RD

RONKONKOMA, NY 117792341

6317513000

NORTH SHORE HEMATOLOGY ONCOLOGY ASSOCIATES PC

48 ROUTE 25A

SMITHTOWN, NY 117871431

6317513000

Source: CMS National Downloadable File, September 2026.