In 2003, the Daly family volunteered at Nuestros Pequeños Hermanos (“Our Little Brothers and Sisters,” or NPH), a home located in Honduras for orphaned, abandoned, and disadvantaged boys and girls. Reinhart Koehler, the president of NPH, asked Dr. Peter Daly to evaluate Angela, a nine-year-old girl on the NPH home who had a severe condition that deformed her legs (chondroectodermal dysplasia). Angela had to scissor one leg in front of the other in order to stand or walk, and she frequently used a wheelchair. Dr. Daly, an orthopedic surgeon, was asked to “fix” her knees in the only facility available—a traveling operating room made from a converted semi-truck trailer that resided at NPH. When Dr. Daly determined that the trailer facility could not address her condition, the Dalys brought Angela to their home in the U.S. for a yearlong orthopedic odyssey of surgical procedures, rehabilitation, and life as part of the Daly family.

Angela’s need, and that of many other Hondurans, prompted the Dalys to work with Reinhart Koehler, as well as family and friends, to raise funds to build and equip a permanent surgical facility on the NPH Honduras home. The project began in 2004, and their dream was finally realized in 2009 when Holy Family Surgery Center (HFSC) officially opened. Dr. Daly and his wife, LuLu, initially organized four to five medical mission trips annually, consisting of volunteer physicians, clinical and nonclinical support staff, and their families.

In 2014, Andrew Hayek, CEO of Surgical Care Affiliates (SCA), visited the Dalys and HFSC in search of meaningful volunteer opportunities for SCA’s physicians and teammates. SCA’s leadership and teammates quickly rallied around the cause, and the capacity of surgical medical missions grew exponentially with the founding of the nonprofit SCA Medical Missions. Today, SCA is a leader in the outpatient surgery industry with more than 200 locations throughout the United States with 7,500 physicians and 8,000 teammates. Since the founding of SCA Medical Missions, this dedicated and passionate group has made a significant impact on addressing the unmet need in global surgery.


The amazing growth of this shared endeavor of HFSC, SCA, and their many friends necessitated the development of a new brand to serve more patients, streamline logistics, and generate a greater impact. In May of 2017, HFSC and SCA Medical Missions combined to create One World Surgery, embracing the concept of service and the transformation of lives through an uncompromising level of surgical care within a family-oriented culture, rooted in community. The Dalys, Hayeks and Koehlers are the founding families of One World Surgery.



Merlin Antúnez, MD
Medical Director, Orthopedic Surgeon

Osman Antúnez
Facilities / Project Manager

Ana Avendaño

Juan Carlos Carias
Preop/Postop Nurse

Kate Clitheroe, MPH
Administrative Director

Suyapa Cordova

Luis Corrales

Claire Cunningham, MDP
Executive Director

LuLu Daly, RN

Maria Doria
Medical Missions Coordinator

Lourdes Fonseca
Environmental Services

Miriam Garcia, RN
Surgical Nurse Director

Beckie Hines, RN, BSN
Nursing Administrative Director

Katie Kaiser
Patient Coordinator

Luisa Molina
Social Worker

Nicole Posadas
Environmental Services

Ricardo Ramírez
Surgical Technician

Rocío Rivera, RN
Assistant Nurse Director

Karen Rodríguez
Sterilization Nurse

Heidy Valle
Preop/Postop Nurse

Katharina Wildt
Physical Therapist


Peter Daly, MD
Chief Medical Officer & Co-Founder

Nella Domenici
Board Director

Andrew Hayek
Chairman & Co-Founder

Reinhart Koehler
Board Director & Co-Founder

Cory Roberts
Board Director