Hours Of Operations Spectrum Group North Dakota Spectrum Group Hours of Operation and Locations in North Dakota 4.6 - 29 votes 1 Locations in North Dakota www.spectrummedicalgroup.com Spectrum Group Hours Category: Home & Garden Spectrum Group - Williston, ND 58801 2321 2nd Ave W, #200(701) 580-5728 View Store Details Recommend For You Sport Center Sport's Page St Josephs Home Stop & Shop Market Stop & Shop Supermarket Stop N Shop Sweet Things The Home Depot Installation Services Top Convenience Variety Store