Career 3

Dec 17, 2020

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lab tests annually

Laboratory Tests Managed Annually


Employee Retention

Years On Average

Client Retention Length


Client Retention Rate


Clean Claim Rate


Call Center Abandoned Call Rate


Lab Tests Annually

David Crane


After years of leadership in the lab industry, David co-founded Phytest in 1998. His current responsibilities include overseeing the company's strategic direction, opening new lines of business and maintaining existing client relationships, and providing oversight to sales efforts in primary and new business lines.

Prior to Phytest, David served as chief operating officer at Southeast Gynecologic Oncology. He was also a partner at MedTest, a laboratory servicing the home health sector, before selling the company. He also held positions at Coram Healthcare and Merrill Lynch. 

David holds a bachelor’s degree in business administration in finance from the University of Florida and a master’s in business administration in finance from Georgia State University.

David is married to Dr. Jessica McCluskey Crane, a retina surgeon, and they have four sons and two golden retrievers. When he’s not in the office, David enjoys golf, tennis, platform tennis and water sports.

Wade McKenzie


As co-founder, Wade has been a driving force behind Phytest from the very beginning. He is currently responsible for the overall operation and performance of the company. He not only stewards the delivery of world-class customer attentiveness, led by a team of skilled professionals but also Phytest’s technologically advanced business processes and solutions. 

Prior to Phytest, Wade held leadership roles at Anheuser-Busch, Sawyer Ferguson Walker and J Walter Thompson. Wade served in the Marine Corps for four years and has a bachelor’s degree in advertising from the University of Florida. 

Wade is married with two children and one dog. 

Bill Pappas


Bill joined Phytest in 2002 and helps guide the company’s talented revenue cycle, technology, client satisfaction and patient experience teams. He also works closely with Phytest customers to develop and enhance custom solutions. Before joining Phytest, Bill held operations and project management leadership positions in the financial services and digital marketing industries.

Bill holds a bachelor’s degree from Boston University’s Questrom School of Business. He is also a registered civil mediator in the state of Georgia with a focus on resolving personal, healthcare and employment-related disputes.

A resident of the Summerhill neighborhood of Atlanta, you can find him exploring the city with his two kids, running, biking or playing pickup soccer. 

Kathy Wood


As CFO, Kathy provides leadership, direction, and management of the finance and accounting team, which handles all reconciliations and reporting for our clients.

Kathy has more than 20 years of experience in the healthcare accounting industry. Prior to joining Phytest in 2016, Kathy was a senior accounting manager for Cotiviti, a leader in healthcare payment policy and analytics, and the controller of the outsourced accounting services division of Aprio, one of the largest regional accounting firms in Atlanta.

She graduated from Lee University with a bachelor’s degree in accounting.

Kathy is married and a dog mom to Bingo. She enjoys international travel, photography, fitness, and time with family and friends.

Greg Perini


Greg manages new business development at Phytest, focusing on new client acquisition, strategic partnerships and overall growth initiatives for the company. Greg has served in healthcare leadership roles for more than 25 years, with expertise in sales, business development and operations at both the regional and national level.

Throughout his career, Greg has led growth efforts in laboratory and physician revenue cycle management and the home health industries. His experience includes strategic plan development, building brand awareness and market share and implementing process and financial performance improvement initiatives.

Greg earned a bachelor’s degree in management from Ramapo College of New Jersey and a master’s in business administration in finance from Seton Hall University.

He is married with two children and enjoys college football, mixed martial arts, golf and gardening.

Mat Jimmerson

Mathew Jimmerson


Mathew leads Phytest’s ongoing technology innovation initiatives that explore the latest in healthcare technologies and our proprietary automated intelligence engines. He has successfully created Phytest’s revenue cycle management services into a technology platform that is easy to use and reduces the human element of failure. He also leads our internal team of highly talented engineers and support staff.

Prior to joining Phytest in 2008, Mat founded and operated Comp-Med Solutions, Inc., a small technology firm based out of Ft. Lauderdale, FL which provides dental offices with a turnkey solution to seamlessly convert all paper and analog systems to digital. He has more than eighteen years of experience in healthcare technology and operations.

When Mat is not innovating, you can find him somewhere in the woods with his wife and three children. He enjoys kayaking, camping, hiking and spending time with his family.

Chuck Womble


Chuck joined Phytest in 2020 and oversees the billing and collections for our customers.

While attending college, Chuck also worked full-time at LaGrange Internal Medicine, where he managed the billing and collections department for six doctors over eight years. Later, he worked for Medic, an ambulatory and EHR software vendor, where he implemented the Medic PM and Tiger practice management software. He also has experience working with Misys Healthcare Systems, where he provided in-depth training on software platforms and improved their collections, and Allscripts, where he was a software product specialist.

He has a bachelor’s degree in business administration from LaGrange College.

Chuck and wife have been married for more than 30 years, and the two have known each other since kindergarten. They have two children, Garrett and Abby.