Contact Us

Mailing Address:
Office of International Students & Scholars
32 Sayre Drive, Coxe Hall
Bethlehem, PA 18015
Interactive map (look for Coxe Hall on the Asa Packer Campus map under the category Academics and Research)
(610) 758-4859
(610) 758-5156
Walk-In Hours (to pick up requested letters and/or other immigration related documents):
  • Mondays: 1pm - 4pm
  • Tuesdays: 9am - 12noon
  • Wednesdays: 1pm - 4pm
  • Thursdays: 9am - 12noon
  • Fridays: 9am - 12noon
Immigration/visa related questions including OPT, CPT, etc. are by appointment ONLY.

Meet the Staff


Samba Dieng

Director of the Office of International Students and Scholars
(610) 758-6377
Bonnie Beidleman photo

Bonnie Beidleman

(610) 758-4859

As OISS Coordinator, Bonnie provides letters for driver’s license, status verification,  inviting family and friends. She also does I-9 Work Eligibility Form for students and scholars. In addition, Bonnie registers all new students in SEVIS, and signs I-20s for travel. Bonnie can answer many questions related to Social Security Number, driver’s license, local community services.  

Clara Buie

Assistant Director, Global Union and Community Engagement
(610) 758-6412

Mohamed Hagag

Database Coordinator
(610) 758-2999

Mohamed provides assistance with data management in the office to ensure compliance with federal regulations pertaining to F-1, J-1 and H-1B visa holders at Lehigh University. In this position he also serves as a DSO/ARO for the university to help with the production of immigration documents when needed. Also, he makes sure that the new students, prior to their arrival, receive timely and informative communication from the Office of International Students and Scholars regarding immunization requirements, housing, airport pickup, and Orientation etc. 

Jeanne Tan Ma photo

Jeanne Ma

Associate Director of International Students and Scholars
(610) 758-4873

Among many things, Jeanne primarily advises international scholars and departments on J-1 and H-1B visa related matters. On behalf of Lehigh University, she files H-1B applications for faculty and staff. Jeanne is also responsible for advising students on employment including CPT and OPT, maintaining student status, traveling, etc. Working with OISS staff, Jeanne assists with programming and orientation.

Olga Scarpero

Assistant Director/Student Adviser

Olga is a primary immigration advisor for F-1 and J-1 students. She advises students on all aspects of immigration regulations: maintaining legal status, employment in the U.S., transferring, traveling, leave of absence, etc. She is also responsible for the creation of immigration documents (I-20/DS-2019) and assisting students with the visa application process.