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

MARGARET HALLOWELL, PA

PHYSICIAN ASSISTANT

Graduated: 1986

Offers telehealth

NPI: 1649465865

Practice Locations (2)

CHS PHYSICIAN PARTNERS PC

510 HICKSVILLE RD

MASSAPEQUA, NY 117581203

5167952626

CHS PHYSICIAN PARTNERS PC

100 PORT WASHINGTON BLVD

ROSLYN, NY 115761347

Source: CMS National Downloadable File, September 2026.

MARGARET HALLOWELL, PA | HealthCareAtlasUSA