Browse Health
Primary Care Doctor, Family Practitioner
33 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).

Learn more about Dr. Mark DeYoung:

View the full profile to get information on:

  1. Qualifications
  2. What's important to you

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Patient Reviews

Patient comments (1)

The overall average patient rating of Dr. Mark DeYoung is Excellent. Dr. DeYoung has been reviewed by 5 patients who have provided 1 comments. The rating is 4.5 out of 5 stars.

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

Specialties & Research

Dr. Mark DeYoung, MD is board certified in Family Medicine.

  • He has special expertise in 1 area:
  • Weight Loss

Education & Awards

Dr. DeYoung graduated from University of Michigan Medical School, Ann Arbor. He has 1 awards.

Patients' Choice Award (2014)


Dr. DeYoung has 3 hospital affiliations:

  • Methodist Medical Center Of Illinois 
  • Galesburg Cottage Hospital 
  • Bronson Methodist Hospital 

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Additional Information
Dr. Mark B DeYoung MD is a male Family Practitioner, has 33 years of experience and practices in Family Medicine.
Where does Dr. Mark B. DeYoung practice?
Dr. Mark DeYoung has 1 office location.
Dr. Mark DeYoung practices Family Medicine near Knoxville, IL.
See Knoxville Primary Care Doctors.