Dr. Gerald J Marks MD

Dr. Gerald Marks is a colon & rectal surgery doctor in Wynnewood, Pennsylvania and is affiliated with Lankenau Medical Center. He received his medical degree from Jefferson Medical College and has been in practice for 65 years. He is one of 3 doctors at Lankenau Medical Center who specialize in Colon & Rectal Surgery.

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Office Location

See Contact Information

Specialty & Clinical Interests

General Colon & Rectal Surgery

Hospital Affiliation

Lankenau Medical Center

Education & Medical Training

Thomas Jefferson University
Residency, Internal Medicine, 1949 - 1950

Thomas Jefferson University
Residency, General Surgery, 1952 - 1957

Jefferson Medical College
Class of 1949

Certifications & Licensure

American Board of Family Medicine
Certified in Family Medicine

American Board of Family Medicine
Certified in Sports Medicine

AZ State Medical License
Active through 2014

Publications & Presentations

Quality of life and fecal incontinence after transanal endoscopic microsurgery for benign and malignant rectal lesions.
Valsdottir, E. B.,Yarandi, S. S.,Marks, J. H.,Marks, G. J.

Sphincter-sparing surgery for adenocarcinoma of the distal 3 cm of the true rectum: results after neoadjuvant therapy and minimally invasive radical surgery or local excision.
Marks, J.,Nassif, G.,Schoonyoung, H.,Denittis, A.,Zeger, E.,Mohiuddin, M.,Marks, G.

Management of rectal cancer: short- vs. long-course preoperative radiation.
Mohiuddin, M.,Marks, J.,Marks, G.

Insurances Accepted

  • Aetna Choice POS II
  • Aetna HMO
  • BCBS Blue Card PPO
  • BCBS Texas BlueChoice
  • CIGNA Open Access
  • Empire BCBS HMO
  • Empire BCBS PPO
  • First Health PPO
  • Great West PPO
  • HIP of New York - Select PPO
  • Humana ChoiceCare Network PPO
  • MagnaCare PPO
  • Multiplan PHCS PPO
  • Multiplan PPO
  • MVP Healthcare PPO
  • Oxford Health Freedom
  • Oxford Health Liberty
  • United Healthcare - Direct Choice Plus POS
  • United Healthcare - Direct Options PPO
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