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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 (4)

The overall average patient rating of Dr. Mark Zacks is Excellent. Dr. Zacks has been reviewed by 9 patients who have provided 4 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 4.8

Specialties & Research

Dr. Mark Zacks, MD is board certified in Internal Medicine.

  • He has special expertise in 1 area:
  • Asthma

Education & Awards

Dr. Zacks graduated from Medical College of Wisconsin, Milwaukee. He has 3 awards.

Patients' Choice Award (2015)
Compassionate Doctor Recognition (2014)
On-Time Doctor Award (2015)


Dr. Zacks has 8 hospital affiliations:

  • Saint Joseph Mercy Saline Hospital 
  • St. Joseph Mercy Oakland 


  • English

> > > > Dr. Mark Zacks, MD

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Additional Information
Dr. Mark N Zacks MD is a male Internist, has 41 years of experience and practices in Internal Medicine.
Where does Dr. Mark N. Zacks practice?
Dr. Mark Zacks has 1 office location.
Dr. Mark Zacks practices Internal Medicine near Warren, MI.
See Warren Internists.