Meet Our Team

Industry Experts

Founded in 2010 by industry leaders and experts, Dr. Madeline Carpinelli Wallack and Suzanne Herzog, Rx|X is an independent, women-owned, 340B auditing and consulting firm and leader in 340B program education.

Dr. Wallack and Ms. Herzog have worked in many capacities in the 340B industry since 1999. Together, they conducted national evaluations of 340B programs while at the Office of Inspector General, served as expert witnesses in historic 340B litigation, and started Rx|X to directly support 340B entities.

With additional auditing support from 340B analysts with years of program operations and oversight experience, Rx|X brings a longstanding history of connections and expertise to helps clients navigate complex 340B program operations more efficiently and effectively.

Madeline Wallack

Founder - PhD, MS, 340B Apexus Certified Expert

Madeline is a program evaluator and expert who brings more than 20 years of career dedication and expertise in the pharmaceutical industry’s 340B program and public policy.


Suzanne Herzog

Founder - MPP, 340B Apexus Certified Expert

Suzanne Herzog is a dedicated data sleuth and program evaluator and expert with more than 20 years of experience and engagement on 340B program and policy matters in public and private sectors.


Alice Schuman

MPH, 340B Apexus Certified Expert

Alice serves as a Pharmacy Business Analyst, leveraging her talents and expertise of more than 17 years managing 340 programs and analyzing the financial impacts of proposed changes to contract pharmacy networks.


Eileen Constantine

CPhT, 340B Apexus Certified Expert

Eileen serves as an Analyst, bringing more than six years of operational experience with 340B compliance and helping clients develop practical solutions to the most complicating challenges.


Let Us Transform
Your 340B Program

Learn more about our industry-leading program services and offerings.