Who We Are

The Immunization Partnership (TIP) leverages a collective knowledge and an unmatched expertise that puts us in the unique position to not only be an effective voice at the Texas Legislature, but to show how others can use their voice, too.

Keith Brown

Development Director

Terri Burke

Executive Director

Rekha Lakshmanan

Chief Strategy Officer

Hill Powell

Chief Operating and Financial Officer

Denisha Prim

Community Engagement Director

Celinda Provost

Communications Director

Wendy Ward

Public Policy & Advocacy Director

Executive Committee

John Dugan, M.D.

CHAIR Gastroenterologist Medical Clinic of Houston, LLP

Ken Letkeman

Senior Vice President - Houston Methodist

Nidhi Malpani

VP Strategy Planning - HCA Healthcare Gulf Coast Division

Lindy McGee, M.D.

Assistant Professor - Baylor College of Medicine

Julie Davidson

Senior Manager
Cheniere Energy


Colin Caughran

Senior Vice President
Macquarie Group

Lisa Fuller, M.D.

Medical Director, Utilization Management
Texas Childrens Health Plan

Mary Healy, M.D.

Associate Professor, Pediatrics-Infectious Disease
Baylor College of Medicine

Nick Janik

Director of Business Development
Childrens Memorial Hermann Hospital

Brandi Johnson

Medicaid Growth and Engagement Director
Elevance Health

David R. Lairson, Ph.D.

The University of Texas Health Science Center at Houston, School of Public Health

Stephanie Magers (Ex-Officio)

Contracts Administration Manager

Jennifer Molokwu

Director, Department of Family and Community Medicine
Texas Tech Health Sciences Center El Paso, TX

Disha Nath

Program Manager
CDC Foundation

Dileep Rao

Senior Attorney
Kearney, McWilliams & Davis

Kenneth Russo

Chief Financial Officer
HCA Healthcare Houston West

Hilary Ware

Senior Vice President, Human Resources
Cheniere Energy

Gwen Emmett

Director Emerita

Melanie Mouzoon, M.D.

Director Emerita

Julie A. Boom, M.D.

Director, Immunization Project, Texas Children's Hospital

Maria Elena Bottazzi, Ph.D.

Associate Dean, National School of Tropical Medicine, Baylor College of Medicine

William Decker, Ph.D.

Associate Professor, Pathology and Immunology, Baylor College of Medicine

Peter J. Hotez, M.D., Ph.D.

Dean for the National School of Tropical Medicine, Baylor College of Medicine

Albert G. Karam, M.D.

Professor of Clinical Pediatrics, UTSW School of Medicine Dallas, TX; President and Owner Karam Pediatric Group

David R. Lairson, Ph.D.

Professor, The University of Texas Health Science Center at Houston, School of Public Health

Lindy McGee, M.D.

Assistant Professor, Baylor College of Medicine

Melanie Mouzoon, M.D.

Managing Physician for Immunization Practices, Kelsey Seybold Clinics

Stanley Spinner, M.D.

Chief Medical Officer & Vice President, Texas Children's Pediatrics

Susan Wootton, M.D.

Professor, Division of Infectious Diseases, McGovern Medical School at UTHealth

Immunization Data and Content Manager



The Immunization Partnership advocates for disease prevention using an impactful network of vaccine champions who promote education and evidence-based public policy on the health benefits of childhood and adult vaccinations. TIP aspires to be the trusted resource for increasing immunization rates to create healthier communities.

The Immunization Partnership has a goal to identify and equip Vaccine Champion teams in all 10 Texas regions by 2025


Texans want to be protected from disease. Vaccine Champions from across the state help us advocate for public policy that protects our fellow citizens against preventable disease through increased immunization access and rates.

We will engage and activate pro-vaccine influencers in key communities to inspire fact-based vaccine decision-making through trusted sources. Our work is focused on inclusivity, equity, and safety for all Texans.


The Immunization Partnership (TIP) evolved from a partnership originally dedicated to supporting the Houston-Harris County Immunization Registry.

In response to a measles epidemic in the 1990’s, Dr. Ralph Feigin founded the Houston-Harris County Immunization Registry (HHCIR), so that providers could better assess the immunization status of children and treat them accordingly. In 2008, this local registry was transitioned to the statewide system called ImmTrac, and Dr. Feigin’s ultimate goal of providing one consolidated database of immunizations for Texas was achieved. The HHCIR Board of Directors determined that an even larger impact could be made to increase immunization rates in the community, so a decision was made to expand its range of services. The Board developed a new name, The Immunization Partnership, and a new mission that truly reflected the broader scope of the organization.

Financial Information: View our IRS form 990