To contact this location call: 202-798-0100 Located in the heart of downtown DC at the intersection of 15th and L Streets Northwest, GW's McPherson Square office is available to deliver quality primary care. Prescription refills: please log in to your MyChart account to request a prescription refill. Learn more or sign up for MyChart. Book an Appointment with a Primary Care Provider Regular Hours Monday - Friday: 7:00 am - 7:00 pm Saturday: 8:00 am - 4:00 pm Sunday: Closed Note: During times of high patient volume, clinic may stop accepting new patients earlier than posted clinic closing time. Holiday Hours Thanksgiving Day: Closed Christmas Eve: 8:00 am - 4:00 pm Christmas Day: Closed