Internist, Critical Care Specialist, Pulmonologist (lungs)
31 years of experience
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. Gary Marklin is Excellent. Dr. Marklin has been reviewed by 7 patients who have provided 2 comments. The rating is 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. Gary Marklin, MD is board certified in Internal Medicine, Critical Care Medicine, and Pulmonary Disease.

  • He has special expertise in 1 area:
  • Asthma

Education & Awards

Dr. Marklin graduated from University of Missouri at Columbia. He has 4 awards.

Patients' Choice Award (2008 - 2009, 2013 - 2014)
Compassionate Doctor Recognition (2014)
Top 10 Doctor - State (2014)
Top 10 Doctor - Metro Area (2014)
Greater St Louis


Dr. Marklin has 3 hospital affiliations:

  • Des Peres Hospital 
  • St Anthonys Medical Center 
  • St Alexius Hospital 

> > > > Dr. Gary Marklin, MD

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Additional Information
Dr. Gary F Marklin MD is a male Internist, has 31 years of experience and practices in Internal Medicine, Pulmonary Disease, and Critical Care Medicine.
Where does Dr. Gary F. Marklin practice?
Dr. Gary Marklin has 2 office locations.
Dr. Gary Marklin practices Internal Medicine, Pulmonary Disease, and Critical Care Medicine near Saint Louis, MO.
See Saint Louis Internists, Saint Louis Pulmonologists, and Saint Louis Critical Care Practitioners.