Skip to main content
John Marks, MD, Colon & Rectal Surgery, Wynnewood, PA

JohnHMarksMD

Colon & Rectal Surgery Wynnewood, PA

Chief of Colorectal Surgery at Lankenau Medical Center

Dr. Marks is on Doximity

As a Doximity member you'll join over two million verified healthcare professionals in a private, secure network.

  • Gain access to free telehealth tools, such as our “call shielding” and one-way patient texting.
  • Connect with colleagues in the same hospital or clinic.
  • Read the latest clinical news, personalized to your specialty.

See Dr. Marks' full profile

Already have an account?

  • Office

    100 E Lancaster Ave
    Suite 330 Lankenau Mob West
    Wynnewood, PA 19096
    Phone+1 610-645-9093

Education & Training

  • Sidney Kimmel Medical College at Thomas Jefferson University/TJUH
    Sidney Kimmel Medical College at Thomas Jefferson University/TJUHResidency, Colon and Rectal Surgery, 1994 - 1995
  • Sidney Kimmel Medical College at Thomas Jefferson University/TJUH
    Sidney Kimmel Medical College at Thomas Jefferson University/TJUHResidency, Surgery, 1989 - 1994
  • Sidney Kimmel Medical College at Thomas Jefferson University
    Sidney Kimmel Medical College at Thomas Jefferson UniversityClass of 1989

Certifications & Licensure

  • PA State Medical License
    PA State Medical License 1991 - 2024
  • American Board of Colon and Rectal Surgery Colon & Rectal Surgery
  • American Board of Surgery Surgery

Publications & Presentations

PubMed