Lee M. Duke, M.D. (Monty)

About me

Lee Duke II, M.D. is a board-certified pulmonologist with over three decades of experience in pulmonary medicine, critical care medicine, and sleep medicine.

Dr. Duke focuses on stabilizing patients and performs time-sensitive, potentially life-saving procedures for patients who have respiratory conditions and diseases.

Dr. Duke was born in Washington, DC and raised in Virginia. He served as a Flight Surgeon in the U.S. Air Force as well as an Instructor for the Department of Aeronautical Science for Embry Riddle University in Daytona Beach, Florida.

Dr. Duke joined Pulmonary Associates of Lancaster in 1998 and is the senior member of the group. In his free time, he enjoys sports, traveling cooking, and spending time with his family. Dr. Duke lives in Lititz with his wife.


  • University of Virginia School of Medicine


  • University of Alabama

Residency & Fellowship

  • University of Virginia
  • University of Rochester
  • University of Pittsburgh Medical Center

Board Certifications

  • Internal Medicine
  • Critical Care Medicine
  • Pulmonary Medicine
  • Sleep Medicine

Conditions I specialize in

  • Respiratory failure
  • Emphysema
  • Cystic fibrosis
  • Lung cancer
  • COPD
  • Asthma
  • Chronic bronchitis

Hospital Affiliations

  • Lancaster General Hospital


  • Healthgrades Honor Roll

Professional Memberships

  • American College of Chest Physicians

Contact Me

New patients and physicians referring a patient, call 717.826.9770

Dr. Duke is a wonderful person. He is very knowledgeable, understanding, and shows true concern and empathy. He is a great physician with remarkable bedside manner and personality.”

A Grateful Patient