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18 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).

Patient Reviews

Patient comments (2)

The overall average patient rating of Dr. Mark Berntsen is Good. Dr. Berntsen has been reviewed by 11 patients who have provided 2 comments. The rating is 3.5 out of 5 stars.

Patient Ratings
Ease of Appointment 3.7
Promptness 3.8
Courteous Staff 3.5
Accurate Diagnosis 3.1
Bedside Manner 3.3
Spends Time with Me 4.2
Follows Up After Visit 3.3

Specialties & Research

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

Education & Awards

Dr. Berntsen graduated from University of Kansas , Kansas City.


Dr. Berntsen has 5 hospital affiliations:

  • Poudre Valley Hospital 
  • Mcr 

> > > > Dr. Mark Berntsen, MD

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Additional Information
Dr. Mark F Berntsen MD is a male Internist, has 18 years of experience and practices in Internal Medicine.
Where does Dr. Mark F. Berntsen practice?
Dr. Mark Berntsen has 4 office locations.
Dr. Mark Berntsen practices Internal Medicine near Greeley, CO.
Additional practice locations include: Loveland, CO and Windsor, CO.
See Greeley Internists.