Our Team

HR® is led by a seasoned executive and sales team with diverse expertise in the healthcare consumable industry.


Jon P. Wiesman

Founder & CEO

Jon began his career managing an elite racehorse breeding operation that led to the development of supplies that changed an entire mindset of equine reproduction world-wide. He has dedicated himself to honor the history of the Holland-Rantos Company to bring HR® Lubricating Jelly back to market leadership. Jon is directing the future of HR® while coordinating the research and development of all HR® branded products from the world headquarters in York, Pennsylvania.

Colby P. Wiesman


Colby puts his experience to work in overseeing overall corporate strategy and growth, financial management and business operations. He is directly responsible for continuing to develop HR® Pharmaceuticals as a market leader. Since the organizations inception, Colby has overseen the organization and has been an integral part of the continued growth and success of HR® over the past four years. Colby attended the Wayne Huizenga School of Business in Ft. Lauderdale, FL. In his free time, he enjoys spending time with his family, golf, skiing, and coaching a local hockey team.

Chris P. Wiesman

Chief Revenue Officer & General Counsel

Chris is responsible for overseeing and managing HR’s sales efforts in the United States and Canada, and is responsible for overseeing HR’s legal and corporate governance functions. Chris graduated from Northwood University with a Bachelor of Business Management degree in management and marketing, and then continued on to pursue his Juris Doctorate from Nova Southeastern University. Prior to joining HR, Chris spent 5 years as a practicing attorney in Florida and Texas, specializing in the areas of franchise, corporate, product liability defense. In his free time, Chris enjoys spending time with his wife Melanie and his friends and family, being outside, trying new restaurants, traveling, and playing sports.

Rande Dettinger

Chief Operating Officer

Rande joined HR Pharmaceuticals in March 2019 after spending the past 24-years in the dental products and service industry. He is responsible for all Operational functions at HR Pharmaceuticals. Rande has a track record of improving processes, driving cost-savings and margin improvements, and leading teams that deliver results. Rande graduated from Pennsylvania State University with a Bachelor’s Degree in Management and Marketing and received an MBA in General Business from York College of Pennsylvania. In his free time, Rande enjoys spending time at the family cabin near State College, PA. He is an avid sports fan and enjoys attending Penn State games with family and friends. 

David Sempeles

Chief Financial Officer

David is our Chief Financial Officer and oversees Finance, Human Resources, IT, and Business Intelligence. David was born, bred, and raised in Central PA. He attended Elizabethtown College, after which he worked for several large corporations including TRW, SMH, Ltd., the largest watch manufacturer in the world, Arnold Transportation Services, Inc., and Bath Fitter. In his free time, David enjoys golf, target shooting, and hiking.

Matt Hanna Director of Strategy & Business Growth

Matt Hanna

Chief Growth Officer

Matt joined HR Pharmaceuticals in 2019 after 22 years with Cardinal Health. While at Cardinal, he played roles in private label product development, category management and sales. Matt’s responsibilities at HR include product development, strategic growth, and planning. Away from HR, Matt enjoys boating and spending time with his wife Jenny, two kids, Owen and Ellie, and their two dogs.

Sales Team

Ryan Gorman

Vice President of Sales — Acute & Non-Acute Channel

Brooke Smith Account Executive & Inside Sales Manager

Brooke Smith

Account Representative and Inside Sales Manager

Dave Lasko

DME National Account Manager

Mike Testa

DME National Account Manager

Randy Golden

Specialty Urological Sales — Territory Manager

Craig Fields

Specialty Urological Sales — Territory Manager

Sara Zebouni

Specialty Urological Sales — Territory Manager