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 / CA

IAIN MACEWAN, MD

RADIATION ONCOLOGY

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

Graduated: 2012

Offers telehealth

NPI: 1326300401

Practice Locations (1)

PROTON DOCTORS PROFESSIONAL CORPORATION

9730 SUMMERS RIDGE RD

SAN DIEGO, CA 921213101

8585497400

Source: CMS National Downloadable File, September 2026.