Sami Anwar is a Research Director in Zain Medical Center, according to Sami Anwar there are many free medical clinics and affordable clinics in Washington DC, Zain Medical Center is one of them, You can take great and affordable services from Zain Medical, here you can see some other free medical clinics which are given below: br br 1. Arlington Hearing Center br 2. Capital Caring br 3. Farragut Medical and Travel Care br 4. Doctors to You br 5.