USA Team Members


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Alyse Hrynko

North East Regional Sales Director
Alyse has a BS in Kinesiology and a minor in Nutrition from West Chester University of Pennsylvania. A majority of her career has been spent in medical sales where she’s worked in the Primary Care Space and EMS. Before Nasco Healthcare Alyse worked with Nasco Healthcare but under McKesson’s space. Alyse is great at building relationships and maintaining relationships with her customers.
North-Central Region Director Melissa Dummer

Melissa Dummer

North Central Regional Director

Melissa has a BS in Health Administration from the University of Wisconsin–Eau Claire with an emphasis in geriatrics and long-term care and was a federally licensed nursing home administrator in Wisconsin and Minnesota.

While the bulk of her time is spent in marketing, product development and instruction, Melissa also uses her strong healthcare background to find the perfect simulation solution for our customers and distributors.

South East Regional Director Lisa Glidden

Lisa Glidden

South East Regional Director

Lisa has over a decade of experience in the healthcare industry.

For several years she directed healthcare asset remarketing programs helping clients discern and resell surplus assets via the auction/listing site model.

Lisa brings with her an extensive healthcare client list and track record of forming lasting relationships in all areas of the industry.


Marlon Hall

South West Regional Director

Marlon has a BS in Kinesiological Sciences from the University of Maryland at College Park and a Juris Doctorate from Whittier College School of Law.

Using his extensive experience in healthcare, technology, and robotics, Marlon is successful at promoting a broad line of medical devices and pharmaceutical products to a full range of Medical Professionals, Legal Professionals, Major Corporations, and Healthcare Technology Distributors.

Before Nasco Healthcare, Marlon was Head of Business Development at Techmetics Robotics.

Sr. Simulation Clinical Educator- US/International Peter Marotta

Peter Marotta, RN, ACLS

Sr. Simulation Clinical Educator- US/International

Peter has over 25 years of clinical experience as a licensed RN, ACLS certified.

His diverse background includes a degree in software engineering, nuclear engineering, and RN. He gained simulation experience as a naval engineer in the mid-80s and medical simulation in the 90s.

Peter’s time with Nasco Healthcare has included managing US distributor sales, product support, education, technical and medical advice. His current focus is on education and technical advice for our domestic and international teams.


Juan Vergara

Global Director of Customer Service
Juan Vergara joined Nasco Healthcare as Global Director of Customer Service in 2023. Juan has a successful track record in Customer Service using a variety of metrics which he looks forward to implementing at Nasco Healthcare. Educated at University of Wisconsin and Rockhurst University of Chicago, Juan is experienced in managing a multinational team. He has a wealth of experience in distributor management, vendor management, contact center management, SalesForce implementation and shipping. Juan is based out of Wisconsin and speaks Spanish and Portuguese.

Dianne Wentz

North America Customer Service Manager

Dianne began her journey with Simulaids founder Kevin Sweeney as a Customer Service Associate. Dianne’s dedication soon led to being promoted to Executive Assistant to the VP of Business Operations.

Dianne’s experience and passion for success was instrumental in the successful transformation to Nasco Healthcare. Her proficiency for providing customer service led to her promotion to North America Customer Service Manager.

Her leadership and commitment to Nasco Healthcare drives our goal of providing excellence in Customer Service.

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