Meet the Staff

International Student & Scholar Services (IS)

International Student & Scholar Services provides immigration and cultural support to F-1 and J-1 students and scholars whose affiliation with Georgetown is the basis for their U.S. immigration status. IS also manages institutional compliance with federal immigration regulations and policies.

Each of Georgetown’s academic units elsewhere in Washington, DC has its own IS Advisor(s).

Main Campus and Medical Center advising appointments with the IS Advisors below are conducted at OGS in the Car Barn. Use your Georgetown email address to reserve an appointment. 

Beginning October 1, 2019, F-1 students requesting travel signatures must reserve an appointment with Ayako Yamada

Regan Bulin

International Student Advisor

– Undergraduates in COL, SFS and NHS
– MS Analytics
– GU-Q

Make an Appointment

Sarah Bunker

International Student Advisor

– MSB undergraduates
– MBA graduate program
– J-1 students sponsored by non-Georgetown organizations
– STEM extensions (last names A-L)
– Undergraduate SEVIS compliance reporting

Make an Appointment

Dylan Gaffney

International Student Advisor

– MA degree programs (except SFS)
– McCourt School of Public Policy (MSPP)
– School of Medicine
– Post-Baccalaureate Certificate programs

Make an Appointment

Sandra Layton

Associate Director, International Student & Scholar Services

– J-1 scholars and student interns (Medical Center, Law Center and Main Campus Science Departments)
– J-1 scholars sponsored by non-Georgetown institutions
– H-1B Temporary Workers
– E-3, O-1 and TN Temporary Workers
– Permanent Residency applications

Make an Appointment

Darius Ngo

Program Manager, International Tax Information

– Tax support services
– ITIN applications
– Office of Global Services statistics
– Advises the Global Living Community (GLC)

Email Darius Ngo to Make an Appointment

Rachel Rubin

Director, International Student & Scholar Services

– PhD
– Biomedical Graduate Education
– MS in Management (MiM)
– MS Mathematics and Statistics
– New program development

Make an Appointment

Danielle Valles

Senior International Student & Scholar Advisor

– MS degree programs (except MS Analytics, Biomedical Graduate Education, MS Mathematics and Statistics, and MSPP)
– Graduate SFS programs
– STEM extensions (last names M-Z)
– J-1 exchange students
– J-1 scholars and student interns (Main Campus except Science Departments)

Make an Appointment

Alicia Ward

Senior Advisor, Compliance & Training

– Global Executive MBA (GEMBA)
– MA International Business and Policy (IBP)
– Executive Master’s in Clinical Quality, Safety and Leadership (EMCQSL)
– Executive Master’s in Policy Leadership (EMPL)
– Executive Master’s in Leadership in Qatar (EMLQ)
– Executive Master’s in Health Administration (EMHSA)
– SEVIS compliance reporting and data management
– UIS liaison and system maintenance


International Student Advisor and Orientation Director

– Manages International Student Orientations
– Advises the International Student Association (ISA)

Ayako Yamada

Administrative Officer

– F-1 travel signatures

Make an Appointment

Global Program Support Services (GPS)

Global Program Support Services provides support to Georgetown departments for graduate and non-credit international programs and overseas properties. GPS also manages the international travel policy and all Georgetown international agreements.

Liz Greenfeld

Senior Assistant Director for Global Program Support Services

– Manages the international agreements process
– Global initiatives for: MSB and NHS graduate programs, Law Center, School of Medicine, GU-Q, CCT, and all administrative offices

Vanessa Meyers

Director, Office of Global Services

– Provides guidance for Georgetown schools and departments wishing to operate overseas

Darius Ngo

Program Manager

– Office of Global Services statistics
– Supports international travel, health and safety process and policies
– Supports the international agreements process
– International visitor and delegation requests

Mia Pezzanite

Program Manager

– Website and office communications
– Villa Le Balze conferences, non-credit and graduate programming

Catey Williams

Assistant Director for International Safety, Security, & Programs

– Guides Georgetown independent travelers regarding the International Travel Policy
– Global initiatives for: SFS graduate programs

Ayako Yamada

Administrative Officer

– Administrative support to OGS and OGE
– Front desk operations
– Manages the Language Exchange Program (LEP) and Senior Flag Ceremony