skip to Main Content
For weather and other updates check
NATA was founded in February 2009 and today it is a thriving tennis program in the scenic suburban city of Sandy Springs GA offering world-class tennis instruction to players of all levels. Our Academy Program has produced a top national, sectional players, and state players. Our Kidzone Quickstart Program is second to none in the state as it is individually catered to each player with a stepping stone to Challenger and beyond. NATA’s program run throughout the whole year and there is a program that fits every player from beginner to the elite level.

Calin Constanceanu

calin-head1-150x150Calin is a former top ranked player from Romania and has been coaching for over 14 years. He has worked with players of all levels, including 5 WTA Tour professionals and 1 ATP player. Calin has a BA in Physical Education and Tennis Coaching and a Master’s Degree in Sports Management. He is a PTR professional and a USPTA member. Additionally, Calin is certified as a Junior Athletic Conditioning Specialist (for ages 6-18) and as a Mental Toughness Trainer.

Michael Kreider

mickMichael has over 20 years experience as a P1 USPTA tennis professional. He has served in almost every capacity in the tennis industry including Tennis Director in Mobile, Alabama.  His latest post was as the Head Men’s and Women’s college coach at Spring Hill College. Michael also created the book and children’s tennis program Zoo Crew Kid’s Tennis. Coach Michael is originally from Buffalo, NY and Graduated from University of Alabama Birmingham and stayed in the South ever since.  Michael is proudest of his three wonderful daughter’s Mary Catherine, Aubray Kaye, and Sarah.

Joseph Bishop

Joseph has been coaching tennis for over 3 years and is a certified PTR Professional. Before teaching
he played Division 1 Tennis at UT-Pan American and Georgia State University. Joseph has an Exercise
Science Degree and is American College of Sports Medicine certified. He also still plays tennis tournaments to improve his game and holds a UTR ranking of top 9000 in the world. Coach Joseph is a born Georgian and grew up in Marietta where he first learned tennis.

Steven Lewis

image (4)

Steven has been working with athletes for over 14 years and is a certified Strength and Conditioning Coach through NASM. He has helped develop and condition numerous Youth athletes, NFL ,NBA, and NCAA Student Athletes. He has participated in the Annual Nike Youth Sports Camps. As a high energy coach, he strives to get the best performance out of each athlete.  Steven was a Walk-on for Eastern Michigan University’s football program earning a Full Scholarship and a Bachelor degree in Business Communication. This is Stevens Fifth year working with the students at NATA and has worked with some top ranked students that has went on and played at the college level such as Aaron Capital.

Pete Pastor

Pete has served as a tennis professional at numerous tennis centers and academies in Florida and Georgia.  He works with adults and juniors learning the game or looking to improve their skill level.  He is committed to helping our young athletes become respectful and good natured individuals.  Pete is USPTA PTR Certified and an USTA Youth Certified Instructor.




Tiffany Allen

Tiffany has a BS in Financial Management and Accounting from Clemson University and a MS in City Planning / Economic Development from Georgia Tech.  She has over 20 years of experience in project management, budget planning and implementation.  She loves tennis and is active in several ladies and juniors teams at the Riverside Club.

Back To Top