Shawn  Peffall Profile Image


  • Primary Care
  • Internal Medicine

Board Certifications:

  • Internal Medicine


  • English

Areas of Interest:

  • Geriatrics and Pulmonary Medicine


  • Mercy Personal Physicians at Reisterstown

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Shawn Peffall, M.D.

Shawn M. Peffall, M.D., is committed to providing clinical excellence in the diagnosis and treatment of primary care conditions. Dr. Peffall has a special interest in geriatrics as well as the management of pulmonary conditions. Board Certified in Internal Medicine, Dr. Peffall practices at Mercy Personal Physicians at Reisterstown. He treats adults ages 18 and older from the communities within Baltimore and Carroll Counties.

Primary Care Diagnoses and Treatment

Dr. Shawn Peffall treats a range of primary care conditions with the inclusion of prevention, evaluation and management of acute illnesses and chronic diseases. He evaluates each patient’s risk factors, medical history and existing medical condition in determining the best treatment plan for the patient’s symptoms. In addition, his medical interests include:

  • Endocrine evaluations
  • Rheumatologic evaluations
  • Pulmonary diseases – asthma, sleep apnea and COPD
  • Vascular risk factor control – hyperlipidemia, diabetes, hypertension, obesity

Understanding the Importance of Staying Healthy

When not practicing medicine, Dr. Shawn Peffall enjoys participating in a number of sports including tennis. He is involved in the United States Tennis Association, the national governing body for the sport of tennis and the recognized leader in promoting and developing the sport’s growth on every level. Also in his spare time, Dr. Peffall enjoys spending time and relaxing with his family.

Education & Fellowships
  • Residency – St. Agnes Hospital, Baltimore, Maryland
  • Medical Degree – American University of the Caribbean, Plymouth, Montserrat

Associations & Memberships
  • American Medical Association
  • American College of Physicians / American Society of Internal Medicine
  • American Geriatric Society
  • Alpha Chi Sigma – Professional Chemistry Fraternity


Insurances Accepted

See a list of insurances accepted at Mercy. Restrictions may apply. Patients should confirm coverage with their carrier prior to appointment date.