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Surgical Specialist, Colorectal Surgeon (colon & rectum)
21 years of experience
Video profile
Accepting new patients
License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Patient Reviews

3.5
  • Currently 3.5 of 4 stars
(21)
Patient comments (6)

The overall average patient rating of Dr. John Marks is Excellent. Dr. Marks has been reviewed by 21 patients who have provided 6 comments. The rating is 3.5 out of 4 stars.

Patient Ratings
Ease of Appointment 3.3
  • Currently 3.3076923076923 of 4 stars
Promptness 2.4
  • Currently 2.4166666666667 of 4 stars
Courteous Staff 3.2
  • Currently 3.2307692307692 of 4 stars
Accurate Diagnosis 3.3
  • Currently 3.25 of 4 stars
Bedside Manner 2.9
  • Currently 2.9166666666667 of 4 stars
Spends Time with Me 3.1
  • Currently 3.0833333333333 of 4 stars
Follows Up After Visit 3.0
  • Currently 3 of 4 stars

Specialties & Research

Dr. John Marks, MD is board certified in Colon & Rectal Surgery.

  • He has special expertise in 2 areas:
  • Colorectal Cancer
  • Colorectal Surgery

Education & Awards

Dr. Marks graduated from Thomas Jefferson University, Philadelphia. He has 7 awards.

Awards  
U.S. News & World Report
2011 - TOP DOCTOR - Colon & Rectal Surgeon
Castle Connolly America's Top Doctors® (2014)
Castle Connolly America's Top Doctors® for Cancer (2014)
Castle Connolly's Top Doctors™ (2012 - 2013)
Top 10 Doctor - State (2014)
Pennsylvania
Colon & Rectal Surgeon
Top 10 Doctor - Metro Area (2014)
Delaware Valley
Colon & Rectal Surgeon

Affiliations

Dr. Marks has 20 hospital affiliations:

  • Bryn Mawr Rehabilitation Hospital 
  • Main Line Hospital - Bryn Mawr 

Languages

  • French

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Additional Information
Dr. John H Marks MD is a male Colon/Rectal Surgeon, has 21 years of experience and practices in Colon & Rectal Surgery.
Where does Dr. John H. Marks practice?
Dr. John Marks has 2 office locations.
Dr. John Marks practices Colon & Rectal Surgery near Wynnewood, PA.
See Wynnewood Surgeons.