|  Dr. William Ritchie Mackenzie, M.D. Internal Medicine - Infectious Disease Medicare: Not Enrolled in Medicare Practice Location: 10535 Hospital Way, Mather, CA 95655 Phone: 916-843-7107 | 
|  Dr. Barbara Weiser, M.D. Internal Medicine - Infectious Disease Medicare: Not Enrolled in Medicare Practice Location: 10535 Hospital Way, Mather Va Hospital, Mather, CA 95655 Phone: 916-843-7000 Fax: 916-366-7096 | 
|  Dr. Harold A Burger, M.D. Internal Medicine - Infectious Disease Medicare: Not Enrolled in Medicare Practice Location: 10535 Hospital Way, Mather Va Hospital, Mather, CA 95655 Phone: 916-843-7000 Fax: 916-843-9441 | 
|  Dr. Raymond Byun,  Internal Medicine - Infectious Disease Medicare: Medicare Enrolled Practice Location: 10535 Hospital Way, Mather, CA 95655 Phone: 916-843-7031 |