At Atlanta Clinical Care, our team of infectious disease specialists is dedicated to offering the highest level of service to our patients and to their families. We strive to provide comprehensive and compassionate medical care. Each of our four physicians is board certified in internal medicine and infectious diseases. They are on staff at Saint Joseph’s Hospital and Northside Hospital Atlanta .
J. Ian McMillen, MD, FIDSA
Dr. McMillen is a graduate of the Medical College of Georgia. He completed both a residency in internal medicine and a fellowship in infectious diseases at the Medical College of Georgia in Augusta. Dr. McMillen is a fellow of the Infectious Diseases Society of America. He currently is the chairman of Emory St. Joseph Hospital’s Pharmacy and Therapeutic Committee. Dr. McMillen received the Top Doctor Award in 2021 in Infectious Disease by Castle Conolly. Dr. McMillen also was awarded the Top Doc award for 2022 from the Atlanta Magazine in Infectious Disease Specialty.
Matthew J. McCall, MD
Dr. McCall graduated from Temple University School of Medicine in Philadelphia. He completed a residency in internal medicine at the Western Pennsylvania Hospital in Pittsburgh, where he was chosen to serve as Chief Resident in Medicine. Prior to moving to Georgia, Dr. McCall completed a fellowship in infectious diseases at the University of Alabama. Dr. McCall received the Top Doc award from Atlanta Magazine for 2022 and 2023 in Infectious Disease Specialty.
Doreen F. Lee, MD
Dr. Lee is a graduate of Chicago Medical School. She completed an internal medicine residency at New York University Medical Center and a fellowship in infectious diseases at Montefiore Medical Center in New York. Prior to moving to Georgia, Dr. Lee served as an instructor in Medicine at Albert Einstein College of Medicine in New York. She is a member of the Infectious Diseases Society of America. Dr. Lee has been recognized by Atlanta Magazine in 2023 as a Top Doctor in the specialty of Infectious Disease.
Jenny L. Usherwood, PA-C
Ms. Usherwood is a certified physician assistant with over twenty years of experience in infectious diseases. She received her undergraduate degree from Davidson College in North Carolina, and graduated from the Emory Physician Assistant Program.
Jasmine Teamer, NP-BC
Ms. Teamer is a certified Nurse Practitioner. She attended the University of Michigan, where she earned her Bachelor and Master of Science in Nursing degrees. She is board certified as an Adult Gerontology Acute Care Nurse Practitioner by the American Nurses Credentialing Center. She has spent the last 11 years working in a variety of settings, including inpatient and outpatient care with veterans, post-acute/long-term care, and surgical services.
Vanessa Peter, PA-C
Ms. Peter is a certified Physician Assistant. She received her bachelor’s degree from Howard University and a Master of Science degree in Physician Assistant from Philadelphia College of Osteopathic Medicine. She is actively involved in her profession as a member of the American Academy of Physician Associates and the National Society of Black Physician Assistants.
Fiona Zhang, FNP
Ms. Zhang is a certified Nurse Practitioner. She earned both of her bachelor’s and master’s degree at Georgia State University. She is board certified as an Adult Gerontology Nurse Practitioner by the American Association of Nurse Practitioners. Her five years as a Registered Nurse in a hospital setting provided a strong foundation for her advanced practice as an NP.