Mid-Atlantic Permanente Medical Group
Kaiser Permanente Internal Medicine Residency Program Director
Gaithersburg Medical Center and Regional Headquarters
Dr. Chen has been in medical education leadership since 2006 at Walter Reed National Military Medical Center, where she served as both Assistant Chief for Graduate Medical Education, and the Director of the Resident Continuity Clinic. She was an Associate Program Director in the Internal Medicine Residency Program at Walter Reed for 5 years before becoming the founding Program Director for the Kaiser Permanente Mid-Atlantic States Internal Medicine Residency Program.
Mid-Atlantic Permanente Medical Group
Kaiser Permanente Internal Medicine Residency Associate Program Director - Outpatient Medicine
Gaithersburg Medical Center
Mid-Atlantic Permanente Medical Group
Kaiser Permanente Internal Medicine Residency Associate Program Director - Inpatient Medicine
Holy Cross Hospital in Silver Spring
Mid-Atlantic Permanente Medical Group
Kaiser Permanente Internal Medicine Residency Core Faculty
Chair, Clinical Competency Committee
Gaithersburg Medical Center
Dr. Anderson’s clinical focus is in interdisciplinary treatment for patients with complex illnesses. She heads the Comprehensive Chronic Pain Management Program, which is a coordinated and holistic model of care for our patients in the DC-Suburban Maryland service area.
Mid-Atlantic Permanente Medical Group
Kaiser Permanente Internal Medicine Residency Core Faculty
Holy Cross Hospital in Silver Spring
Mid-Atlantic Permanente Medical Group
Kaiser Permanente Internal Medicine Residency Core Faculty
Gaithersburg Medical Center
Mid-Atlantic Permanente Medical Group
Chair, Program Education Committee
Gaithersburg Medical Center
Dr. Yang has spent the past four years as active duty in the Army while also serving with the Internal Medicine Residency at Brooke Army Medical Center in San Antonio, Texas, as a core faculty member before joining MAPMG in 2021.
Mid-Atlantic Permanente Medical Group
Co-Chief of Adult and Family Medicine Department, DC-Suburban MD service area
Silver Spring Medical Center
Mid-Atlantic Permanente Medical Group
Co-Chief of Adult and Family Medicine Department, DC-Suburban MD service area
Capitol Hill Medical Center
Mid-Atlantic Permanente Medical Group
Chief of Hospital-Based Medicine, DC-Suburban MD service area
Holy Cross Hospital in Silver Spring
Capital Critical Care, LLC Medical Group
Medical Director of Critical Care
Holy Cross Hospital in Silver Spring
Mid-Atlantic Permanente Medical Group
Kaiser Permanente Mid-Atlantic States Internal Medicine Residency Program Chief Resident
Gaithersburg Medical Center and Holy Cross Hospital in Silver Spring
Program Manager, GME Residency
Marc John Barredo is the program manager for the Kaiser Permanente Mid-Atlantic States Internal Medicine Residency Program. He has been an integral part of the accreditation process and manages the multiple priorities to ensure the program’s success. After achieving accreditation and recruitment of the inaugural class in 2020, he pursued operational and consulting roles within Kaiser Permanente.
Before coming to Kaiser Permanente of the Mid-Atlantic States, Barredo worked at Walter Reed National Military Medical Center and the George Washington University Medical Faculty Associates in a similar role. Barredo is married to a graphic designer who makes his pictures look stunning all the time, and he likes to spend time with his family outside of work.
Associate Director of Medical Education
Kelliann Dell is the Associate Director of Medical Education KPMAS Residency Programs. Dell earned her Bachelor of Science degree in Business Administration from the University of Maryland University College. She worked for the Johns Hopkins University Internal Medicine Residency program for nine years — first as a program administrator and later as a program manager — before joining the Kaiser Permanente Mid-Atlantic States Internal Medicine Residency Program.
After 3 years of being a resident at the KPMAS IM Residency Program, I can confidently say my clinical and professional experiences have been monumental in making me the physician I am today. These experiences were built by the constant learning environment and amazing resources provided by KPMAS, including my daily interactions with patients, staff, and faculty members.
Hamdi Abdeen, MD, Chief Resident 2025-2026
As I graduate from residency, I’m filled with gratitude for an experience that has been so much more than academic. Along the way, I’ve developed lifelong friendships that I will always cherish, grown as a leader through both challenges and triumphs, and had the privilege of learning from incredible mentors whose guidance has shaped not just my skills, but my character. Truly, this experience has made me a better physician.
Kathleen Adeshoga, MD, Class of 2025
