The Department of Mathematics Administrative Staff is currently working a hybrid remote schedule.

The chart below displays the days staff are in the office. Math Department Staff are located in Rowland Hall 422, 424, and 425. The Math Front Office Reception is located in Rowland Hall 419. 

Please note that on the days staff are not listed in this chart, they are working remotely from home and are available. Please feel free to contact them at the information below. 

Fall 2023 Staff Office Support Schedule

In Office Work Hours

Mondays: 8:00AM- 5:30PM

Tuesdays, Wednesdays, Thursdays: 8:00AM-5:00PM

Fridays: 8:00AM-4:30PM

Monday Tuesday Wednesday Thursday Friday
Ingrid Richey
Lissette Umanzor (graduate affairs) Stephanie Look (academic personnel) Mabel Gao
Mabel Gao
Jezelle Rabbath (undergrad affairs) Jezelle Rabbath (undergrad affairs) Donald Orr
(academic personnel)
Ingrid Richey
Lissette Umanzor (graduate affairs)
Stephanie Look
(academic personnel)
Claudia Cheffs (manager) Claudia Cheffs
Claudia Cheffs (manager)  


Staff Contact Information:
Lissette Umanzor Graduate Affairs 949-824-7846
Jezelle Rabbath Undergraduate Affairs 949-824-6770
Stephanie Look Academic Personnel 949-824-5502
Donald Orr Academic Personnel 949-824-8267
Ingrid Richey Finance 949-824-2515
Mabel Gao Finance 949-824-4698
Claudia Cheffs Manager 949-824-5500
Andres Castro
Cristian Avaro-Suarez
Nhu Nguyen
Marcus Lei
Front Desk Reception  949-824-5503