Jeanette Contreras, MPP

Founder & Principal Consultant

A nationally recognized strategist with 25+ years of experience across NIH, CMS, and national nonprofits, Jeanette leads US Health Collab’s policy and advocacy work. She has justified a $5B NIH cancer research budget, directed 260+ physician fly-ins, and led Medicaid unwinding campaigns protecting immigrant families. A trusted spokesperson and coalition builder, Jeanette brings unmatched credibility and cultural fluency to every engagement.

Sabrina Lopez

Multicultural Strategy & Engagement Lead

A former VP at Telemundo and NBCUniversal, Sabrina brings 20+ years of experience in multicultural marketing, sales leadership, and advocacy. She has led $50M+ media portfolios, launched bilingual campaigns across the US and Latin America, and built bridges between brands and communities. Sabrina ensures US Health Collab clients engage authentically with diverse audiences while advancing equity and reputation.

Mayra Medrano, MBA

Execution & Community Engagement Advisor

Mayra is a seasoned strategist with 20+ years of experience in executive operations, stakeholder engagement, and cross-functional execution. At the US Department of Commerce, she manages $75M in national grant portfolios, translating leadership priorities into actionable plans. She has advised nonprofits on culturally competent public health campaigns, including fentanyl education and mental wellness for Spanish-speaking communities. A former Latino Chamber Chair, Mayra brings unmatched strength in community-grounded execution and culturally responsive messaging.

Rosa Castillo Krewson, Ph.D.

Research & Policy Advisor

As a Public Affairs and American Politics professor, Rosa brings deep expertise in legislative research, public administration, and equity-focused program evaluation. She recently served as an APSA Congressional Fellow on the House Committee of Veterans Affairs and has worked with state and local governments. She led research projects for Virginia agencies, including the Department of Emergency Management and the Department of Education; surveyed Northern Virginia residents about transportation issues; and secured federal grants for leadership development and racial equity initiatives. Fluent in Spanish and proficient in Italian, Rosa strengthens US Health Collab’s capacity to translate policy into practice with academic rigor and cultural nuance

Armando Téllez, PMP, MBA

Vice President of Operations & Strategy

Armando Téllez is a senior transformation executive with over 20 years of experience leading enterprise-wide modernization, financial strategy, and digital innovation across federal agencies, Fortune 500 companies, and public infrastructure systems. As VP of Operations & Strategy at US Health Collab, he ensures that every engagement is data-driven, operationally sound, and strategically aligned. He has led some of the nation’s most complex modernization efforts, including a $226M Oracle Cloud transformation at WMATA, and advanced AI-integrated credit risk modeling at Freddie Mac and Fannie Mae. A certified PMP, SAFe Scrum Master, and cybersecurity professional, Armando brings a rare blend of technical fluency, financial acumen, and strategic foresight to every project.