Browse Health
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).

Learn more about Dr. William Mark:

View the full profile to get information on:

  1. Qualifications
  2. What's important to you

View full profile

Patient Reviews

Patient comments (4)

The overall average patient rating of Dr. William Mark, Gastroenterologist is Excellent. Dr. Mark has been reviewed by 13 patients who have provided 4 comments. The rating is 4.5 out of 5 stars.

Patient Ratings
Ease of Appointment 4.5
Promptness 4.5
Courteous Staff 3.9
Accurate Diagnosis 4.0
Bedside Manner 3.9
Spends Time with Me 4.2
Follows Up After Visit 5.0

Specialties & Research

Dr. William Mark, MD is board certified in Internal Medicine and Gastroenterology.

  • He has special expertise in 6 areas:
  • Acid Reflux Disease (Gastroesophageal Reflux / GERD)
  • Constipation
  • Hepatitis C
  • Irritable Bowel Syndrome (IBS)
  • Ulcerative Colitis
  • Women's Health

Education & Awards

Dr. Mark graduated from University of Guadalajara, Mexico, San Antonio. He has 1 awards.

Patients' Choice Award (2015)


Dr. Mark has 3 hospital affiliations:

  • Sacred Heart Hospital 
  • Memorial Hospital Med Center-Cumberland 
  • Western Maryland Regional Medical Center 


  • Spanish

> > > > Dr. William Mark, MD

Similar doctors nearby

Dr. Shiv Khanna

Internal Medicine
27 years experience
Cumberland, MD

Dr. Wayne Spiggle

Internal Medicine
Cumberland, MD

Dr. Heather Peirce

Internal Medicine
33 years experience
Cumberland, MD

Dr. Aqeel Saleem

Internal Medicine
17 years experience
Cumberland, MD

Dr. George Failing

Internal Medicine
39 years experience
Cumberland, MD

Dr. Peter Halmos

Internal Medicine
Cumberland, MD
Search All Similar Doctors
Additional Information
Dr. William Wesley Mark MD is a male Internist, has 37 years of experience and practices in Internal Medicine and Gastroenterology.
Where does Dr. William W. Mark practice?
Dr. William Mark has 1 office location.
Dr. William Mark practices Internal Medicine and Gastroenterology near Cumberland, MD.
See Cumberland Internists and Cumberland Gastroenterologists.