Browse Health
Primary Care Doctor, Family Practitioner, Geriatric Specialist (elderly care)
36 years of experience
Accepting new patients
Video profile
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 (6)

The overall average patient rating of Dr. Marc Posner is Good. Dr. Posner has been reviewed by 17 patients who have provided 6 comments. The rating is 4 out of 5 stars.

Patient Ratings
Ease of Appointment 5.0
Promptness 4.5
Courteous Staff 4.1
Accurate Diagnosis 4.0
Bedside Manner 3.8
Spends Time with Me 3.7
Follows Up After Visit 3.9

Specialties & Research

Dr. Marc Posner, MD is board certified in Family Medicine and Family Medicine - Geriatric Medicine.

  • He has special expertise in 3 areas:
  • Alzheimer's Disease
  • Colonoscopy
  • Opioid-Related Addiction Disorders

Education & Awards

Dr. Posner graduated from University of Maryland , Baltimore.


Dr. Posner has 4 hospital affiliations:

  • Mercy Medical Center Inc 
  • Harbor Hospital Center 

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Additional Information
Dr. Marc Stephen Posner MD is a male Family Practitioner, has 36 years of experience and practices in Family Medicine, Geriatric Medicine, and Geriatric Medicine.
Where does Dr. Marc S. Posner practice?
Dr. Marc Posner has 1 office location.
Dr. Marc Posner practices Family Medicine, Geriatric Medicine, and Geriatric Medicine near Baltimore, MD.
See Baltimore Primary Care Doctors and Baltimore Geriatric Doctors.