Advantage Testing of Philadelphia

Philadelphia Office
Cira Centre, Suite 1720
2929 Arch Street
Philadelphia, PA 19104

Phone: 267.691.1902

Main Line Office
201 King of Prussia Road
Suite 650
Radnor, PA 19087

Phone: 267.691.1902

Debra Subar
1270 South Avignon Drive
Gladwyne, PA 19035

Phone: 610.520.1822

Alex Freedman, Director
Gus Mattammal, Director

For over 20 years, Advantage Testing of Philadelphia has served the local scholastic community, delivering outstanding educational services and helping students reach their academic and professional goals.

We offer one-on-one tutoring for the ACT, SAT, AP Exams, PSAT, SSAT, ISEE, LSAT, GRE, GMAT, and many academic subjects. Our tutors develop individually tailored programs that complement each student’s schoolwork and guide them to academic and personal success.

Advantage Testing of Philadelphia maintains three tutoring locations, providing our students with easily accessible and exceptional learning environments. In the Main Line, our tutors have prepared hundreds of students for college and graduate school admissions exams. Our new location in the Cira Centre carries on that tradition of excellence in West Philadelphia. 

Our tutors are also available to Skype with students outside Philadelphia. Contact us to discuss your tutoring options.

Tutors in Philadelphia

Susanna Coates /

Susanna Coates

Tutor of: SSAT, ISEE, English

M.A., with high honors, in English Education from Hunter College.
M.A., with distinction, in Shakespearean Studies from King’s College London.
B.A., summa cum laude, in English and Creative Writing from The George Washington University.
Phi Beta Kappa; Former English Department Chair at Springside Chestnut Hill Academy.

Alex Freedman /

Alex Freedman

Tutor of: SAT, ACT, LSAT, GMAT, GRE, MCAT, SSAT, ISEE, Mathematics, Science, Social Studies, English, Languages, Arts, Business, Miscellaneous

B.A., magna cum laude, in Music from Harvard University.
Dean’s List; Harvard College Scholarship for Academic Distinction; Robert C. Byrd Scholar; Arthur Smithies Prize; National Merit Finalist; AP Scholar with Honors; Harvard Book Award.
Head of Advantage Testing’s GMAT and GRE Programs.
Director of Advantage Testing of Westport, Advantage Testing of Philadelphia, Advantage Testing of Charlotte, Advantage Testing of Denver, and Advantage Testing of New Orleans.

Gus Mattammal /

Gus Mattammal

Tutor of: SAT, ACT, LSAT, GMAT, GRE, MCAT, SSAT, ISEE, AT Silicon Valley Academy, Mathematics, Science, English, Business

M.B.A. in International Strategy and Finance from Yale School of Management.
B.A. in Physics and Mathematics from Pomona College.
Director of Advantage Testing of Silicon Valley, Chicago, Philadelphia, Pittsburgh, Portland, Dallas, Denver, Minneapolis, New Orleans, St. Louis, San Diego, and Seattle.

Michelle Shafer /

Michelle Shafer

Tutor of: SAT, ACT, LSAT, GMAT, GRE, SSAT, Academic Writing Program, Social Studies, English

Ph.D. in Theatre from Columbia University.
M.Phil. in Theatre from Columbia University.
M.F.A. in Theatre from Columbia University.
M.A. in Theatre from Columbia University.
B.A., magna cum laude, in English and Theatre from Bryn Mawr College.
Marjorie Hope Nicolson Fellow; Mellon Summer Research Fellow; Shubert Presidential Scholarship; Kaye Theater Award; Columbia University Travel Award.

Debra L. Subar /

Debra L. Subar

Tutor of: SAT, ACT, LSAT

J.D. from Harvard Law School.
B.A., magna cum laude, in Politics from Princeton University.
National Merit Scholar.
Former Director of Advantage Testing of Philadelphia.

Geoffrey Tanner /

Geoffrey Tanner

Tutor of: MCAT, Mathematics, Science, Social Studies

Ph.D. in Neurobiology from Harvard Medical School.
M.A.L.S. in Science from Wesleyan University.
B.S. in Molecular Biophysics & Biochemistry and Environmental Biology from Yale College.
Yale Club of New Haven Scholar; Most Promising Project Award, Dana-Farber Cancer Institute; Visiting Scientist on the Israel Family Foundation for Science at Phillips Academy Andover; Amity Club of New Haven Scholar.