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 / AZ

STEPHEN M NIEMIEC, MD

GENERAL SURGERY

Medical school: UNIVERSITY OF CALIFORNIA, SAN DIEGO SCHOOL OF MEDICINE

Graduated: 2016

Also: PEDIATRIC MEDICINE

NPI: 1699128504

Practice Locations (3)

525 W BROWN RD

Mesa, AZ 852013202

2600 N WYATT DR

TUCSON, AZ 857126106

520 S CAROLINE ST, APT 302

BALTIMORE, MD 212313891

Source: CMS National Downloadable File, September 2026.