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 / MA

DONALD S ZALL

CLINICAL SOCIAL WORKER

Graduated: 1969

Offers telehealth

NPI: 1093739070

Practice Locations (1)

97 LOWELL RD

CONCORD, MA 017421733

9787641457

Source: CMS National Downloadable File, September 2026.