Liver Disease treatment in Maryland, Frederick, US Coming Soon. Digestive Care Specialists Holy Cross Germantown Medical Office Building 19851 Observation Dr., #245 Germantown, MD 20876 Frederick Location 165 Thomas Johnson Dr. Suite B Frederick, MD 21702 Phone: 301-288-1319 Send an email » Recent Articles 8 Ways to Improve Gut Health and Microbiome All About Salmonella Cholesterol and Your Weight Avoid These Three Foods to Prevent Summer Weight Gain Eating More Whole Foods May Be the Key to Weight Loss