Who We Are

Greg Austin is the President of EmVenio and Professional Case Management (PCM). Since 2008, Mr. Austin has led EmVenio, previously PCM Trials, to global leadership in decentralized clinical trials (DCTs), applying 30+ years of mobile nurse visit expertise from PCM. Mr. Austin’s leadership enabled rapid operational scaling during COVID and introduced practices now standard in DCTs. Previously, he held senior strategy roles at Dex Media and Computer Sciences Corp. Mr. Austin earned a B.S. in Business Administration from Metropolitan State University and an MBA from the University of Colorado.

Charlie Billings is the Chief Information Officer. Mr. Billings joined EmVenio in 2019 with 25 years of IT leadership experience and has since led compliance initiatives for CIS Controls, HIPAA, GDPR, CCPA, and 21 CFR Part 11. Under his leadership, EmVenio earned CIO 100 and CSO50 awards for digital transformation and security. Previously, he served as the Chief Technology Officer at LT Trust Company and held IT leadership roles at Dex Media. Mr. Billings earned a B.A. in Psychology from Boston University and a M.S. in Management and Public Policy from Carnegie Mellon University.

Christy Crase is the Chief Legal Officer with oversight over EmVenio's Legal and Compliance Departments. Ms. Crase joined EmVenio in 2019 with more than 20 years of legal experience. Prior to joining EmVenio, Ms. Crase was the Associate General Counsel of Payor and Commercial Contracting at DaVita. Previously, she held leadership positions with Baxter and Gambro. Ms. Crase started her legal career with Jones Day. Ms. Crase earned a B.A. in Political Science, and Spanish from Regis University, and a J.D. from Texas Tech School of Law.

Brad Drevno serves as Chief Operating Officer at EmVenio, bringing more than 30 years of executive leadership and operational expertise to the organization. Since joining EmVenio in 2016, he has played a pivotal role in scaling operations and driving strategic growth.
Prior to EmVenio, Mr. Drevno held senior leadership roles at Accenture and General Electric. Throughout his career, he has led high-performing global teams and spearheaded complex operational initiatives across diverse industries.
Mr. Drevno holds a Bachelor of Science in Business and Economics from California State University

Curtis Fletcher is the Chief Financial Officer. Mr. Fletcher joined EmVenio in 2010 and is responsible for overseeing the finance, treasury, and accounting functions. Prior to joining EmVenio, Mr. Fletcher started his career as a public accountant with Arthur Andersen and went on to later serve as the Chief Financial Officer for Local Matters. Mr. Fletcher earned a B.S. in Business from Wake Forest University and a Master of Business from the University of Alabama. Mr. Fletcher is also a licensed certified public accountant.

Jeff Huntsman is the Chief Commercial Officer, responsible for commercial strategy and revenue. Mr. Huntsman joined EmVenio in 2024 with over 30 years of experience guiding global commercial teams in clinical development and regulatory spaces.
Mr. Huntsman previously led a consulting firm and held Chief Commercial Officer roles at Citeline, ConnectiveRx, Parexel, and LIQUENT, in addition to serving in executive leadership positions at several other organizations. Mr. Huntsman earned a B.S. in Marketing and Political Science from Ball State University in Muncie, Indiana.

Mark McKenzie, M.D., is the Chief Medical Officer and oversees EmVenio’s research site network team, including operations, study feasibility, regulatory, recruitment, training, and medical affairs. Dr. McKenzie joined EmVenio in 2023 with 20+ years of experience facilitating clinical trials. Previously, he served as V.P. of Clinical Affairs at M-3 Wake Research, as well as the regional medical director and principal investigator at ClinSearch. Dr. McKenzie earned a B.A. and B.S. from Southern Adventist University and an M.D. from the Medical College of Ohio at the University of Toledo.

Tom O’Connor is the Senior Vice President of Global Business Services. Mr. O’Connor joined EmVenio in 2013 with over 30 years of expertise in healthcare and decentralized clinical trials, and a strong background in operations, business development, budgeting, proposals, software sales, and marketing. Prior to joining EmVenio, Mr. O’Connor ran a consulting firm supporting Life Sciences, Healthcare, and Telecom clients. He has also held leadership roles at Zayo and Level 3. Mr. O’Connor earned B.A. in Economics and Political Science from the University of North Carolina.

Tajuana Barron is the Vice President of Project Management, responsible for project delivery. Ms. Barron joined EmVenio in 2022 with 30+ years of clinical research experience at pharma companies and CROs. Previously, Ms. Barron was the Senior Director of Project Management at PPD, where she oversaw strategic partnerships, DCT strategy, and managed a team of project leaders. She also held leadership roles at PRA Health Sciences and Schering Plough Research Institute. Ms. Barron earned a B.S. in Chemistry from Bennett College and studied at the University of Medicine & Dentistry of New Jersey.

Jennifer Hoffman is the Vice President of Human Resources and Talent Acquisition. Ms. Hoffman joined EmVenio in 2019 and is responsible for overseeing recruitment, benefits, and human resources. Prior to joining EmVenio, Ms. Hoffman served as Senior Vice President of Human Resources for Spectrum Retirement Communities. Previously, she led a variety of human resource functions at MGM Resorts International and Caesars Entertainment. Ms. Hoffman earned a B.S. in Communications from the University of Utah and is certified in Myers-Briggs.