Emergency Medicine

The Hyperbaric Medicine Team

Mark Binkley, MD

Assistant Professor, Interim Medical Director, Hyperbaric PPMC Wound & Hyperbaric Center

Kevin R. Hardy, MD

Assistant Professor, Hyperbaric Physician, Fellowship Director

Dr. Kassem
Jawad N. Kassem, MD, MPH

Assistant Professor, Hyperbaric Physician

Matthew P. Kelly, MD

Assistant Professor, Hyperbaric Physician

David S. Lambert, MD

Assistant Professor, Interim Chief, Division of Undersea and Hyperbaric Medicine

Mala P. Trivedi, MD

Assistant Professor, Hyperbaric Physician

Dr. Gaskill
Zachary J. Gaskill, DO

Fellow, Hyperbaric Physician

Every hyperbaric therapy session, including emergency care, is directly supervised by a physician trained in hyperbaric medicine. Each of these Penn doctors is board certified in a primary specialty with additional certification in hyperbaric medicine.

Find a Hyperbaric Medicine Specialist

Our staff includes physicians certified as Diving Medical Examiners by the Undersea and Hyperbaric Medical Society and Divers Alert Network. Medical clearance to dive examinations can be arranged by appointment. Together, this group of physicians constitutes the Hyperbaric Therapy Group, a clinical practice of the University of Pennsylvania.


  • Donald Tony Bryan, EMTP - Hyperbaric Technician
  • Mary Chin, ACHRN - Hyperbaric Clinical Manager
  • Annette Davis, RN
  • Phil Gaspari, RN - Manager of Operations
  • John Grimmie, EMTP - Hyperbaric Technician
  • Jonathan A. Held - IT Support Specialist
  • Teresa Johnston, EMT/DMT - Director of Safety and Maintenance
  • Wendy Kelly - Patient Coordinator & Billing
  • Robert Murray - Hyperbaric Technician
  • Danielle Patrick, RN
  • Charles Ramos, RN
  • William Simpson - Hyperbaric Technician

To schedule an appointment, please call 800-789-PENN (7366) or request an appointment online.