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Contact Us

Please contact us with any questions or information requests as well as suggestions or comments on our website. For any of the below extensions, dial 301-735-8401 and then the extension listed.


Bishop McNamara High School
6800 Marlboro Pike Forestville, MD 20747
CFO, Business Manager
Peggy Ball
Phone Extension: 125
Main Office
Director of Admissions & Enrollment
Mrs. Patricia Garber
Phone Extension: 113
Fine Arts and Athletics Center
Business Office
Human Resource
Mrs. Mary Gessner
Phone Extension: 158
Office Hours
School Year - 7:30am to 3:30pm
Summer Break - 8:00am to 1:00pm 
Attendance Office
Ms. Joanann Walther
Phone Extension: 149
Mr. Marco Clark '85
Phone Extension: 115
Director of Institutional Advancement
Mrs. L'oreal Edmondson
Phone Extension: 134
Dr. Robert Van der Waag
Phone Extension: 116
Director of Alumni Relation & Special Events
Mrs. Sandy Mammano
Phone Extension: 111
Associate Principal/Dean of Students
Mr. Reginald Brady
Phone Extension: 151
Director of Annual Programs
Mrs. Alice Case
Phone Extension: 122
Associate Principal/Academic Dean
Mrs. Mindi Imes de Duclos
Phone: Extension 118
Director of Communication
Mr. Robert Feasley
Phone Extension: 212
Associate Principal
Dean of Programs
Mr. Victor Shin
Phone Extension: 112
Director of Web Communications
Mrs. Janice Conlon Cuellar LR '69
Phone Extension: 123
Director of Athletics
Mr. Anthony Johnson
Phone Extension: 103
Dean of Students/Summer School Principal
Mrs. LaSandra Hayes
Phone Extension: 119