Browse Health
Surgical Specialist
24 years of experience
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

Patient comments (2)

The overall average patient rating of Dr. Mark Duncan is Excellent. Dr. Duncan has been reviewed by 5 patients who have provided 2 comments. The rating is 4.5 out of 5 stars.

Patient Ratings
Ease of Appointment 5.0
Promptness 5.0
Courteous Staff 4.6
Accurate Diagnosis 5.0
Bedside Manner 5.0
Spends Time with Me 5.0
Follows Up After Visit 5.0

Specialties & Research

Dr. Mark Duncan, MD is board certified in Surgery.

  • He has special expertise in 9 areas:
  • Adrenal Gland Cancer
  • Colon Cancer
  • Colorectal Cancer
  • Esophagus Cancer (Esophogeal Neoplasm)
  • Gallbladder Cancer
  • Intestinal Cancer
  • Pancreatic Cancer
  • Soft Tissue Cancer (Sarcoma)
  • Stomach Cancer

Education & Awards

Dr. Duncan graduated from Mayo Medical School, Rochester. He has 3 awards.

Castle Connolly America's Top Doctors® (2009, 2012 - 2015)
Castle Connolly America's Top Doctors® for Cancer (2009, 2012, 2014 - 2015)
Castle Connolly's Top Doctors™ (2012 - 2013)


Dr. Duncan has 5 hospital affiliations:

  • The Johns Hopkins Hospital 
  • Johns Hopkins Bayview Medical Center 


  • English

> > > > Dr. Mark Duncan, MD

Similar doctors nearby

Dr. Bethany Sacks

12 years experience
Baltimore, MD

Dr. Ronald Byank

Orthopaedic Surgery
40 years experience
Baltimore, MD

Dr. Michael Schweitzer

20 years experience
Baltimore, MD

Dr. Scott Lifchez

Plastic Surgery
12 years experience
Baltimore, MD

Dr. Mehran Habibi

15 years experience
Baltimore, MD

Dr. Malachy Asuku

Baltimore, MD
Search All Similar Doctors
Additional Information
Dr. Mark Douglas Duncan MD is a male Surgeon, has 24 years of experience and practices in Surgery.
Where does Dr. Mark D. Duncan practice?
Dr. Mark Duncan has 1 office location.
Dr. Mark Duncan practices Surgery near Baltimore, MD.
See Baltimore Surgeons.