Charmaine Munnings

Guardian Pharmacy of Southeast Florida

Charmaine brings 34 years of experience to the pharmacy industry, bringing a wealth of knowledge and expertise. Her career began with a national retail chain, where she dedicated 13 years to roles ranging from pharmacy technician, store manager and training development specialist. For the past 21 years, Charmaine has shifted her focus to the long-term care sector, where she has become deeply involved in the medical records and operations aspects of this vital industry. Her insights help ensure compliance and drive improvements in care delivery and operational effectiveness.

David Whitlock
David Whitlock

Guardian Pharmacy of the Piedmont - NC, Guardian Pharmacy of South Carolina

As president of Guardian Pharmacy of the Piedmont and sister pharmacies Winyah Pharmacy Solutions and Preferred Care Pharmacy, David oversees operations, sales and marketing, financials, account management and profitability. With over 30 years of experience, the majority of his focus has been in long-term care. David also has experience in hospital business development and operations, as well as skilled nursing facility administration and operations.

Randall Klemm

Guardian Pharmacy of Oregon

As president of Guardian Pharmacy of Oregon, Randall oversees operations, customer service, and pharmacy performance across the region. With more than 30 years of experience in long-term care pharmacy, he founded Managed Healthcare Pharmacy in 1991, building a strong foundation of resident-focused service and clinical excellence. A registered pharmacist in Oregon since 1986, Randall and his team support thousands of patients throughout Oregon and Washington, partnering closely with communities to deliver high-quality medication management and care.

Gil Achterhof

Guardian Pharmacy of Oregon

As president of Guardian Pharmacy of Oregon, Gil oversees strategic operations and brings more than 40 years of leadership experience across banking, technology, retail, and long-term care pharmacy. Prior to entering the pharmacy field, he co-founded Community State Bank of Galva, co-owned a multi-store supermarket business, and served in executive roles at Point Control Company and SpecTech, Inc. Gil has led Managed Healthcare Pharmacy since 2002 and has been deeply involved in Rotary and local community boards for decades. He enjoys travel, reading, poker, and time with his growing family.

Stephen Boulanger

Mercury Pharmacy Services

As pharmacy president, Stephen leads Mercury Pharmacy Services, drawing on more than two decades of long-term care pharmacy experience. He founded the pharmacy in 2001 with a mission to deliver exceptional customer service and specialized medication packaging tailored to the needs of assisted living, skilled nursing, and developmental disability communities. A senior care pharmacist by training, Stephen is deeply committed to improving medication compliance through innovative technology, caregiver support, and strong customer partnerships.

Bob Weir
Bob Weir, RPh

SVP, Operations & Regulatory Support

Bob joined Guardian Pharmacy in 2015 as the head of operations and regulatory support. Bob came to Guardian with a proven track record of successful leadership for multi-facility pharmacy companies. Bob has twenty plus years’ experience in LTC pharmacy operations management. Prior to joining Guardian, Bob served as Sr. VP of Operations for Kindred Pharmacy Services (KPS), COO of Continuing Care Rx (CCRx), and VP of Operations in the LTC pharmacy division at Omnicare. Bob received his BS in Pharmacy from the St. Louis College of Pharmacy.

David Martin
David Martin

SVP, Technology, Data & Senior Security Officer

As head of technology, David oversees all of Guardian’s IT strategy, infrastructure, enterprise software, security, and business intelligence. He has an extensive technology leadership background, having served as a Senior IT Consultant with IBM and Vice President of Technology & Software Development. for Allconnect, Inc. David earned his B.E. in Computer Engineering and Mathematics from Vanderbilt University and his MBA in Market Strategy and Global Business from Emory University’s Goizueta Business School. 

Jeff Tuch
Jeff Tuch, CPA

SVP, Purchasing & Pricing Analytics

As head of purchasing, Jeff oversees Guardian’s supply chain management, vendor relations and contracting, with an additional focus on customer pricing strategies and analysis. Jeff received his B.A. in Accounting from Western Michigan University and has 25+ years of financial operations and accounting experience. Prior to joining Guardian in 2007, Jeff held leadership positions with companies in the healthcare sector.

Doug Towns
Doug Towns

SVP, General Counsel & Senior Compliance Officer

Doug joined Guardian in 2016 as General Counsel after a long-standing working relationship with Guardian’s executive team during his nearly twenty years as a Partner with Jones Day in Atlanta. Doug earned his B.A. in Political Science and Philosophy from Emory University and his J.D. from University of Virginia School of Law.

Chris Crisafulli
Chris Crisafulli

SVP, Payor and Industry Strategy

Chris leads pharmacy network strategy, including contract negotiation, direct PBM relationships, network performance and management of the PSAO relationship. He also oversees the compliance, licensing and credentialing functions. Prior to joining Guardian, Chris spent 18 years at CVS Health in payer relations, contracting, planning and analysis related to Retail/LTC pharmacy reimbursement and served as the pharmacy and MinuteClinic divisions A/R department head. Prior to that, Chris worked with a regional medical billing company. A University of Connecticut graduate, Chris received his Master of Business Administration from Bryant University.