Macha has professionally-trained staff with over 75 years of experience to assist you with all your payments questions and concerns or provide you with a wide range of compliance services. Please feel free to contact anyone on the Macha staff at any time regarding your needs. Use the following specific information regarding who to call for assistance - or send us an email at

Mary Gilmeister, AAP, NCP

President President and CEO

262-345-1245 ext. 2300


Andy Barlow, AAP, NCP

AndyExecutive Vice President

262-345-1245 ext. 2100


Cheryl Becker, AAP

CherylAVP Auditor and Customer Service

262-345-1245 ext. 2400


Nicole Ambort-Cram, AAP, APRP


262-345-1245 ext. 2700


Michele Barlow, AAP, NCP

MicheleVice President

262-345-1245 ext. 2900

Sara Gigous, AAP

SaraEducation Specialist 


262-345-1245 ext. 2200


Kimberly W. Rector, AAP

Senior Director of Education


(410) 859-0090 ext. 1002


Marybeth Mueller

Senior Director of Member Relations and Administration


(410) 859-0090 ext. 1005


Trish D. Conte

Director of Operations


(410) 859-0090 ext. 1004


Natalie F. Oyler-Lusco

Marketing Specialist


(410) 859-0090 ext. 1003


Sherry Meisenheimer

SherryBilling and Order Fulfillment