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

HALYNA CHYKYDA, MD

INTERNAL MEDICINE

Graduated: 1992

Offers telehealth

NPI: 1881073740

Practice Locations (2)

HARBOR VIEW MEDICAL SERVICES PC

125 OAKLAND AVE, SUITE 204

PORT JEFFERSON, NY 117772130

JOHN T MATHER MEMORIAL HOSPITAL

75 N COUNTRY RD

PORT JEFFERSON, NY 117772119

6314731320

Source: CMS National Downloadable File, September 2026.

HALYNA CHYKYDA, MD | HealthCareAtlasUSA