welcome . Aspen Internal Medicine Consultants, with Ann Mass M.D. and Emma Grindler PA-C focuses on the differential diagnosis, treatment and follow-up of adult internal medical problems.We have scheduled office hours Mon -Fri. 8:30 a.m. to 5 p.m. Walk-ins are welcome daily from 8:30 a.m. to 4:30 p.m. Parking is available adjacent to the office..