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 / MD

HANNAH MAINSTAIN, NP

NURSE PRACTITIONER

Graduated: 2019

NPI: 1942857917

Practice Locations (2)

2702 GEARTNER RD

BALTIMORE, MD 212091410

4433188713

PROMED PREFERRED MD PROFESSIONAL CORPORATION

1519 YORK RD

LUTHERVILLE, MD 210935611

8457388770

Source: CMS National Downloadable File, September 2026.

HANNAH MAINSTAIN, NP | HealthCareAtlasUSA