Board Certifications

  • Internal Medicine
  • Pulmonology

Area of Expertise

  • Pulmonary Hypertension
  • Pulmonary Rehabilitation



University of Miami – Jackson Memorial Hospital
Pulmonary Medicine
Miami, FL
1977 – 1979

Internship and Residency

George Washington University Hospital
Internal Medicine
Washington, DC
1974 – 1977

Medical School

Ohio State University School of Medicine
Doctor of Medicine
Columbus, OH

Undergraduate School

Denison University
Bachelor of Arts
Granville, OH

Hospitals Affiliated With

Holy Cross Hospital Germantown
Shady Grove Adventist
Suburban Hospital

Professional Association

American College of Chest Physicians

Academic Appointment

George Washington University School of Medicine
Clinical Assistant Professor of Medicine


Frank J. Mayo, MD is passionate about Pulmonology and working closely with his patients across the Gaithersburg area to help them achieve their optimal health. Dr. Mayo went to Ohio State University School of Medicine in Columbus, OH, and completed his post-doctoral residency training at the George Washington University Hospital in Washington, DC. Additionally, Dr. Mayo specializes in Pulmonary Medicine.