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Graduate Medical Education


GME family
Nguyet-Cam Vu Lam, MD, MS, FAAFP
Program Director

A graduate of the Kigezi International School of Medicine in Cambridge, England and Uganda, Dr. Lam completed her family medicine residency at St. Luke’s Hospital and joined the clinical faculty in 2006. She served as Associate Program Director since 2012 and Program Director since 2018. Dr. Lam is an adjunct associate professor of Family, Community, and Preventive Medicine at Temple University School of Medicine and is the 2013 recipient of the Drs. Henry P. & M. Page Laughlin Award for excellence in medical student education. She completed a National Institute of Program Directors Development fellowship in 2013. Her interests include maternity care, music, and gardening. She and her husband have three children.

Martha M. Metzgar, DO, FAAFP
Director of Osteopathic Medical Education
St. Luke’s University Hospital
Osteopathic Recognition Track Director Family Medicine
Associate Program Director Family Medicine

Dr. Metzgar graduated from the Oklahoma State University College of Osteopathic Medicine and completed her family medicine residency at St. Luke's Hospital. She joined the clinical faculty in 2010, was appointed Osteopathic Program Director in July 2012, Osteopathic Director of Medical Education in 2018 and Associate Program Director in 2019. She and her husband have a daughter, a son, two cats, a dog and too many books. Her interests include women's health, pediatrics, board games, sunshine and raising her kids to be nerds.

Judy Abu-Brown, MD
Clinical Faculty

Dr. Abu-Brown graduated from the University of Medical Sciences in Pinar del Rio and completed her residency in Family Medicine Residency at St. Luke's University Hospital Bethlehem, where she also served as Chief Resident during her last year of study. She is particularly interested in preventative medicine and global health. Dr. Abu-Brown also appreciates the broad scope of Family Medicine, which allows her to care for patients of all ages. She enjoys traveling with her husband and two children.

Renata Carneiro, PhD

Renata Carneiro, PhD
Assistant Director Behavior Science and Residency Development/ Research Advisor

Dr. Carneiro completed both her undergraduate and graduate studies in Psychology at the University of Baltimore, where she was the 2009 valedictorian of her master’s graduating class Dr. Carneiro received her doctoral degree in Couples and Family Therapy from Drexel University in 2015, where she specialized in family dynamics, interpersonal violence, sexual trauma, and how early childhood events impact health. Dr. Carneiro is passionate about prevention and targeted interventions that promote health among all types of patients. She has extensive teaching and clinical experience working with both individuals and families. In addition, Dr. Carneiro has presented and received awards for her clinical work in many national and international conferences. Moreover, she has published many articles in peer reviewed journals, has authored textbook chapters, and serves as a reviewer for the Journal of Family Psychotherapy. Dr. Carneiro and her husband, live in the Lehigh Valley Area.

Maria V. Ghetu, MD, FAAFP
Clinical Faculty
Staff Geriatrician

A graduate of the University of Medicine and Pharmacy Iuliu Hatieganu in Cluj-Napoca, Romania, Dr. Ghetu completed a family medicine residency at St. Luke’s Hospital and a fellowship in geriatric medicine at Sacred Heart Hospital in Allentown, Pennsylvania. She holds a Certificate of Added Qualification in Geriatrics. She joined the clinical faculty as a staff geriatrician in 2007, and served as associate program director for Geriatric Medicine fellowship from 2010 until 2015. Dr. Ghetu is a clinical associate professor in the Lewis Katz School of Medicine at Temple University, department of Family and Community Medicine. Her special interests include dementia disorders. In 2011, Dr. Ghetu was named the Pennsylvania Academy of Family Physicians Exemplary Teacher of the Year.

Courtney Humphrey, MD
Clinical Faculty

Dr. Humphrey graduated from Albany Medical College and completed her family medicine residency through Providence Hospital/Georgetown University in Washington, DC. She is a clinical assistant professor and the family medicine co-clerkship director at the Lewis Katz School of Medicine at Temple University. She has special interest in chronic disease management and women's health. Dr. Humphrey and her husband have two children.

Natalia Lapko, MD
Clinical Faculty

Dr. Lapko graduated from Ivano-Frankivsk National Medical University, Ukraine. She completed her Family Medicine Residency at St. Luke's Sacred Heart Campus, serving her final year of training as Chief Resident. Dr. Lapko has special interest in managing chronic conditions and preventive medicine. Outside of the work, she enjoys spending time with her family. She and her husband have four children.

Richa Sharma, MD
Clinical Faculty

Dr. Sharma graduated from Indira Gandhi Medical College India from where she further did post graduation in Obstetrics and Gynecology.

She then completed Family Medicine Residency at St. Luke’s University Hospital Bethlehem. She enjoys caring for patients of all ages in different stages of life and practices full scope Family Medicine including Outpatient, Inpatient and Obstetrics. In her free time, she loves traveling and spending time with her husband and son.

Our residents also receive invaluable education from our associated fellowship programs. For more information, please visit the Sports Medicine, Geriatric Medicine, and Hospice and Palliative Medicine fellowship programs.