Dr. John W. Larson
18140 Zane Street NW #303
Elk River, MN 55330
Note that when calling this phone number you will likely have to leave a voice message and someone will return your call as soon as possible.
Please note the above address is not a location to provide your lab samples. All lab sample must be provided at a LabCorp facility. To find the closest LabCorp location click on this link: https://www.labcorp.com/labs-and-appointments