LOCATION & PATIENT PORTAL. CONTACT. More. 8800 State Line Rd . Leawood, KS 66206 (913) 383-9099 office ... Infectious Disease. Christopher B. Geha, MD. Internal Medicine & Geriatric Medicine. Stany A. D'Silva, MD. Internal Medicine . Daniel J. Geha MD. ... They serve to strengthen the patient's immune system in order to protect against germs ....