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.

Scott Catey
Deputy Director of Digital Transformation

Dr. Scott Catey, Deputy Director, Digital Transformation for Ripple Effect Communications, brings 15 Years professional experience managing complex federal, state, and international projects involving IT, health equity, and evidence-based policy. Dr. Catey has co-managed projects in excess of $5 Million per year and over 35 people with diverse policy and programmatic responsibilities.

Dr. Catey earned his Ph.D. and J.D. (with honors) concurrently from the University of Florida in 2011.

From 1996 to 2001, Mr. Catey was Associate Program Director and then Program Director for a highly successful communications cluster in Missoula, Montana. Following this experience, he returned to graduate school to complete a second master’s Degree, and then his doctorate and law degrees, which he completed with honors. Following graduation, Dr. Catey had faculty appointments at Georgia State University and Agnes Scott College. Looking for a greater challenge, in 2012 he took a position with the Montana Department of Corrections to direct the agency’s implementation of the Prison Rape Elimination Act.

Following his brief but successful tenure at the Montana Department of Corrections, Dr. Catey transitioned to national-level PREA implementation work at the National PREA Resource Center, where he led the project’s digital growth and expansion, managed the development of the PREA Online Audit System, and managed complex data sets and analytics for Federal partners at the USDOJ. Most recently, Dr. Catey held the role of Associate Director at the PRC and managed a complex portfolio with four division heads and teams of eleven downstream reports.

Dr. Catey joined Ripple Effect Communications in June 2022, as the Deputy Director, Digital Transformation. He looks forward to providing excellent support to the organization and its clients.

Heather Huntsman
Deputy Director of Strategic Staffing

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.

Kristy Riordan
Director of Research & Evaluation

Tell us about your career path. What were you doing before Ripple Effect? 

After years of studying and training to be a teacher, I realized I cared more about social science and big-picture policies that affect lives, rather than being the one teaching reading and math. So, I switched gears. Before Ripple Effect, I worked for the Army and evaluated behavioral health programs. 

What’s a hobby of yours? 

I am an avid reader, especially Stephen King novels. It’s hard to find the time with three kids, but getting to read on vacation or on an airplane is when I’m the happiest. 

Why is Research and Evaluation so important to what Ripple Effect does? 

If you aren’t willing to look at yourself and see how you can improve, you probably aren’t approaching your business in a way that has fidelity. The government hasn’t always done this well, but we do! So, we help clients measure, analyze, and better understand how to improve and learn from past mistakes.  

What is a funny quirk about you that people might not know? 

I’m a big germaphobe. Being a health researcher doesn’t help that.

Advice you would give a young professional? 

What my father always told me: You are going to work for the vast majority of your life, so do something you can take pride in and enjoy doing.  

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.

Timothy La Rose
Director of Communications & Outreach

Timothy La Rose was, most recently, the Senior Communications Manager for the USAID/RTI International ENVISION project which seeks to end neglected tropical diseases in 19 countries. He has more than 20 years of communications experience in both the private and public sectors. Previously he worked as the Chief of Communications for UNICEF Guinea, where he led communications before, during, and after the 2014 Ebola outbreak.

Timothy has served as Chief of Communications for the United Nations Office on Children and Armed Conflict, led digital communications for the UN Office on Drugs and Crime, and worked on internal and external global communications projects at UN Headquarters. Earlier, he worked in the private sector at Citibank and Sony where he led small a digital communications team that won a patent for a content management system.

He has worked in: Washington D.C.; New York, NY; Conakry, Guinea; Vienna, Austria; Nairobi, Kenya; and Doha, Qatar. Throughout his career, he has managed communications teams covering diverse topics including: children, education, health, human trafficking, transnational organized crime, conflict, international development, child protection, and the music industry. Timothy lives in Silver Spring, MD with his wife and son, loves the outdoors, and speaks German and French.