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Clinics By Medical Specialty

Internal Medicine

Our Greeley and Loveland internal medicine doctors work to prevent, treat and manage complex diseases and disorders of the adult body. 

 They enjoy developing long-term relationships with patients, focusing not just on the illness, but on preventing it.  In addition to treating patients in the clinic setting at Greeley Medical Clinic and Medical Clinic at Centerra, our internists call on patients at Medical Center of the Rockies in Loveland and NCMC in Greeley. To make an appointment, call 970.392.4752.

Contact and location information

Greeley Medical Clinic - Map Medical Clinic at Centerra - Map
1900 16th Street 2500 Rocky Mountain Avenue
Greeley, CO 80631 North Medical Office Building
Phone:  970.350.2438 Loveland, CO 80538
Fax: 970.350.2473 Phone:  970.203.7050
  Fax:  970.203.7055

Meet our internal medicine doctors:

Dr. Mark Berntsen Dr. William Lopez, Jr.
Dr. Robert Cash Dr. Scott Pace
Dr. Dana Christiansen Dr. Donald Rademacher
Dr. Sheila Copple

Dr. Daniel Zenk

Dr. John Ebens



Meet our mid-level providers:

Ryan Huizingh, PA-C
Jamie Hyndman, PA-C
Keith Jensen, PA-C
Kim Racine, PA-C


Clinic hours

Monday through Friday, 8 a.m. to 5 p.m. 

Referral required:  No

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University of Colorado Health employees dedicate themselves to providing patients and other customers with world-class care and service. Outside organizations recognize that, calling University of Colorado Health's hospitals some of the best in Colorado and even the best in the nation. Some of those accolades are listed below:



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