Heather Huntsman
Director of Technical and Scientific Support

Heather D. Huntsman is a solutions-focused and resourceful professional equipped with more than 15 years of training and experience in basic, applied, and translational science environments. Throughout her career she has been driven by asking the right questions which has led her to gain extensive experience in reviewing, evaluating, and interpreting findings in a broad range of biomedical disciplines, including stem cell biology, physiology, aging, and women’s health issues across all domains of medicine, and the influences of sex/gender and race/ethnicity on public health trends. She has used her expertise to support biomedical research at the NIH and DoD in various capacities including scientist, communications specialist, and grants manager. She also has a unique background as an athlete and coach which is a mentality that she brings to the workplace every day allowing her to excel in fast-paced team settings, lead through her work ethic and determination, and inspire others to do the same. Heather earned a Masters’ degree in exercise science from George Washington University, and a PhD in muscle physiology from the University of Illinois Champaign-Urbana and prides herself in being a leader that listens and never stops learning.

Martha Ngoh
Deputy Director of Program Management
and Policy

Martha Ngoh, Deputy Director of Program Management and Policy at Ripple Effect, brings over 7 years of experience supporting and managing federal-funded public health and healthcare projects involving policy development and implementation, communications, and partnerships. Ms. Ngoh has worked on projects and programs aimed at improving patient safety and the quality of healthcare delivery related to healthcare infection prevention and control, healthcare-associated infections (HAI) and antimicrobial-resistance (AR), and maternal safety. Ms. Ngoh served as a Senior Analyst at the Association of State and Territorial Health Officials and was later promoted to Director of Healthcare Connections within the Infectious Disease Infrastructure and Policy team, where she provided leadership on a portfolio to foster collaboration between public health and healthcare through key activities. In this role, Ms. Ngoh managed the Council for Outbreak Response: HAI/AR where she developed processes for efficient Council operations and member engagement and contributed to the development of the Council’s Framework on HAI Outbreak Notification which aims to guide notification and communication in the context of a possible HAI outbreak. Ms. Ngoh received her MPH from the George Washington University in 2016. Ms. Ngoh was also selected as a fellow into the 2020-2021 cohort of the Johns Hopkins University Emerging Leaders in Biosecurity Initiative. Ms. Ngoh currently serves as the Deputy Director of Program Management and Policy, where she provides leadership on the Program Management and Policy team.

Deborah Sartin
Director of Project Management Office

Deborah Sartin, Director of the Project Management Office, for Ripple Effect Communications, Inc. brings 15+ Years’ professional experience developing PMOs from inception to service delivery.  She is an accomplished leader managing enterprise technical and business projects for federal, corporate, education and non-profit organizations.  

Created and managed an Office of Business Excellence and several PMO Centers of Excellence to drive organizational maturity in strategic planning, process improvement, quality management, contract management, and project portfolio management  

Ms. Sartin received her M.S. in Management Information Systems from The George Washington University, Washington, D.C.  

Ms. Sartin holds CMMI Associate, ISO Certified Auditor, PMP, CSM, SAFe SM, Prosci, ITIL, CIPM, and Balance Scorecard certifications.

Early Work History  

1990s  

Ms. Sartin worked as a federal contractor to the Federal Communications Commission (FCC) managing technical support and training.  She also managed technical support and training for Mead Packaging, a global manufacturing company.  In addition, she worked as a Project Manager for an international telecommunication firm, Global One where she launched call centers in the Americas. She has a breadth of experience in all aspects of technology services, shifting organizations from traditional service models to innovative transformational models.  

Recent Work History  

2000-2012  

Ms. Sartin managed projects in the banking industry and worked as a business process improvement analyst for a telecommunications firm.  In these roles she developed metrics to improve IT staff performance as well as processes and procedures for organizational efficiencies. She served as a Technology Support Manager for T-Mobile’s global call center. She delivered the best customer experience via outstanding customer relationship management.  She also worked as an account executive and technical recruiter for Robert Half Technology. Ms. Sartin is frequently requested as a guest speaker and trainer on project management and organizational change management topics.  

Current Work History  

In 2012, Ms. Sartin joined the American Speech-Language Hearing Association (ASHA) as their inaugural Project Management Office (PMO) Director. From the success of this role, she was promoted to the role of Director, Office of Business Excellence to lead strategic planning, process improvement and project portfolio management. After her tenure at ASHA, Ms. Sartin developed and expanded PMOs at educational institutions including West Virginia University, the University of Pennsylvania, Success Academy Charter Schools in NYC, and the Univ. of TN Health Science Center.  She also provided Project Management consultation services with a global consulting firm where she helped clients establish Agile project management best practices.  

Lex Helsel
Director of Research & Evaluation

Dr. Alexis Helsel has professional experience conducting applied health research and program evaluations for several federal agencies, including NIH and DOD. She has contributed and managed mixed-method scale evaluation projects that include bibliometric analyses of program outcomes and impacts and network analyses. Dr. Helsel has extensive experience abstracting administrative from NIH databases, including QVR, IMPACII, RePORT, iCite, as well as PubMed, Web of Science, USPTO, and Federal RePORTER. She also has experience using publication and grant data to construct research networks using VosViewer and CitNetExplorer. Dr. Helsel also has a strong record of effective communication and developing evidence-based recommendations. She has co-authored 20 briefings of research and evaluation findings for senior government and military stakeholders, eight technical reports, one peer-reviewed publication, and 12 professional conference presentations. She has trained and provided technical guidance on epidemiologic and evaluation methods to multi-disciplinary teams of Masters- and PhD-level scientists. She is proficient with STATA, SAS, and Microsoft Access, Excel, and DeDoose. Dr. Helsel earned a PhD in epidemiology from the University of Pittsburgh. 

Tierra Terrell-Johnson
Senior Human Resources Manager

Tell us about your career path. How did you get here?

I studied at the University of Wisconsin-Madison (Go Badgers!) and got my MBA from Concordia University. I concentrated on Human Resource Management because I wanted to prove that HR professionals can be analytical, strategic, and have a seat at the business table.

What motivates you?

I’ve made it my mission to ensure that when you come to work at Ripple Effect, you bring your whole self and feel comfortable doing so. We’re all equal here, and I will always fight for that.

What are some of your hobbies?

I love to organize (and color-coordinate!) I’d be a professional organizer if I could. My favorite store is Staples—I could spend a whole paycheck there.

Advice for future professionals entering your field?

Develop your people’s leadership skills, especially junior employees. Train them and involve them. As companies grow, they need succession plans—and if you invest in your people, they will invest in the company in return.