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Primary Care Providers

Department of Medicine, Division of General Internal Medicine


Spyridon S. Marinopoulos, MD, MBA - Director
Assistant Professor of Medicine


Dr. Marinopoulos is a Board Certified General Internist and Assistant Professor of Medicine who has served as the Director of University Health Services as of March 2006.  He completed his undergraduate studies with a degree in Chemistry from The University of Chicago. He received his MD degree from the University Of Chicago Pritzker School Of Medicine and his MBA from the University Of Chicago Graduate School Of Business, with a concentration in Health Administration and Policy. He received his Internal Medicine training at New York Presbyterian Hospital Weill Cornell Medical Center. After 2 years in private practice, Dr. Marinopoulos joined the full time faculty in the Division of General Internal Medicine at Johns Hopkins in 2001. He has published in the area of evidence based medicine and has interests in the areas of university health and health care administration.

Click here to email Dr. Marinopoulos (non-urgent matters only)

Nancy Codori, MD, MPH
Assistant Professor of Medicine

Dr. Codori is a Board Certified General Internist and Instructor of Medicine at Johns Hopkins University. She graduated from Northwestern University School of Medicine in Chicago, IL in 1990. She holds a Master's degree in public health from the Johns Hopkins Bloomberg School of Public Health. She completed her Internal Medicine internship and residency at Beth Israel Deaconess Hospital in Boston, MA in 1993. She has cared for adults in many ambulatory and inpatient settings. She provided primary care and inpatient care to adults for 7 years as a staff internist for Johns Hopkins Community Physicians in East Baltimore. She provided urgent outpatient care as a faculty physician for Johns Hopkins Department of Emergency Medicine, Urgent Care from 2000 through 2005. Her most recent position before joining the Johns Hopkins faculty was as physician manager for Chase Brexton Health Services, a federally qualified community health center. Her research interests include rapid HIV testing in emergency departments, MRSA prevalence in emergency departments and depression in medical students.

Edgar (Pete) Miller, MD, PhD
 Professor of Medicine


Dr. Miller is a Board Certified General Internist who has practiced at UHS since 1995, but has assumed an increased clinical role since November 2006. Dr Miller completed his undergraduate studies at Pennsylvania State University and followed with a PhD in Marine Sciences from the University of Connecticut. After receiving his MD from Jefferson Medical College,  Dr Miller did residency training at the Medical University of South Carolina and completed a fellowship in General Internal Medicine at Johns Hopkins.  Dr Miller is certified by the American Society of Hypertension as a specialist in the treatment of hypertension.  He conducts research on the effects of diet and lifestyle on blood pressure and kidney disease.

Gail Daumit, MD, MHS
Associate Professor of Medicine


Jeremy Sugarman, MD, MPH, MA
Harvey M. Meyerhoff Professor of Bioethics and Medicine


Zoobia Chaudhry, MD 
Assistant Professor of Medicine


Karran Phillips, MD
Assistant Professor of Medicine

Rezi Alavi, MD
Instructor of Medicine


 Nurse Practitioners

Sharon O'Neill, CRNP
Nurse Practitoner


 Sharon has been a nurse practitioner with UHS since February 2011.  In May 2012 she assumed the role of the Nurse Practitioner Manager of UHS.  Sharon is an Assistant Professor of Nursing at the Johns Hopkins University School of Nursing. She earned a diploma in nursing from the Maryland General Hospital School of Nursing, a Bachelor’s in Nursing from Notre Dame of Maryland University, a Master’s in Nursing from the University of Pennsylvania and a law degree for the University of Baltimore School Of Law.  She completed postmaster’s certification as a pediatric nurse practitioner and a family nurse practitioner at Johns Hopkins University School of Nursing. She is completing a Doctor of Nursing Practice program at The Catholic University. Her areas of interest include nursing and the law, school health services, mental health in children and adults.


Mary Whippel, CRNP
Nurse Practitoner


Traveling for care?

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International +1-410-614-6424



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