About Us

Sinead Gallagher, CTBS, ST

Senior Manager, Donor Eligibility and Logistics

Martha Zarraga, CTBS, ST

Manager, Acquisition Operations

Martha is a Miami native and is proud of her Hispanic heritage. She is a mother of three and brings 18 years of experience in the donation industry to her role at Sharing Miracles. In her position, she focuses on starting and expanding birth tissue donation programs within hospitals while fostering strong relationships that support both families and healthcare partners. Being present for the birth of a child is a privilege Martha deeply values, and by educating families about donation and helping mothers create a legacy of giving, she is honored to build meaningful connections that allow one person’s gift to change another’s life while advancing the impact of regenerative medicine.

Brenda King, CTBS, CEBT

Manager, Donor Development and Communication

Born and raised on St Simons Island, Georgia, Brenda has devoted 25 years of her career to promoting and supporting organ, eye, and tissue donation services in South Carolina. Brenda is passionate about inspiring others to donate. “My commitment to donation services comes naturally as I believe to give of oneself for the good of others is the greatest gift. Dedicating my career to donation services is a gift to me.”

Mercedes Nouchet, CTBS

Senior Donation Coordinator

Born in Cuba and raised in Miami, Mercedes has 16 years of Birth Tissue and Tissue Banking experience. Her mission is to introduce and educate the local Hispanic community to the importance of saving lives through donation and transplantation.

Sharon Fernandez, CTBS

Donation Coordinator II

Born and raised in Colombia, Sharon is a mother of three, who graduated from Keiser University with a bachelor’s in health science. She joined the BioTissue family six years ago as part of the production department and has recently joined the Sharing Miracles team. Sharon is passionate about tissue donation with the purpose of healing and saving lives.

Ramon Negrete

Lead, Logistics & Inventory Control

With over 14 years of adventures in the pharmaceutical and biotech industries, Ramon has worn many hats. He spent eight years in pharmaceuticals sharpening his skills in operations & quality management before deciding it was time for a new challenge (and a change of scenery). That’s when Ramon found his home at BioTissue, where he has thrived for the past six years. From facilities to quality control, Ramon has explored it all, but it’s in tissue procurement that he finally found his calling—a place where his expertise & enthusiasm make a real impact (and where every day is anything but boring).

Kelly Cover, RN, EMT-P, CTBS

Manager, Partner and Community Education

Kelly lives in the suburbs of Cleveland. She has worked in the medical field all her adult life. In 2005, she began her journey in donation by supporting organ, tissue, and eye donation. In 2024 she joined the Sharing Miracles team. “I believe every mother is a superhero and should be given the opportunity to donate. This simple act can heal so many.”

Audrey Spain

Supervisor, Donor Records

With over a decade of experience in the field of tissue donation, Audrey is a compassionate professional committed to honoring the gift of life through ethical practice and clinical excellence. Since beginning her career in 2015, Audrey has specialized in donor eligibility, working to ensure every donation meets stringent medical, regulatory, and safety standards. “One donation can heal dozens of lives—it’s not just tissue; it’s hope passed from one human to another.” Audrey lives outside of Cleveland, where she is a wife and mother of two.

Rose Tarrau

Specialist, Birth Tissue Acquisition

With 17 years in healthcare administration, Rose specializes in organ, tissue, and eye donation. She began her career at the University of Miami Tissue Bank in 2008 and later gained experience in hospital development and clinical donor management with her local OPO. Since April 2025, Rose has served as a Birth Tissue Acquisition Specialist at Sharing Miracles, where she takes pride in educating others and supporting placenta donation.

Oswaldo Cordova

Specialist, Birth Tissue Acquisition

Oswaldo is Venezuelan-born and based in Miami. He is a Birth Tissue Acquisition Specialist at BioTissue, where he plays a key role in the Sharing Miracles initiative by supporting families through the gift of birth tissue donation. With a strong background in hospital services and nine years of experience in organ and tissue donation, Oswaldo is passionate about education, compassionate care, and building trust with both healthcare teams and families. His work is driven by the belief that every donation has the power to transform lives and create lasting miracles. He loves spending time with his family, especially his son.

Solange Cordovi

Specialist, Birth Tissue Acquisition

Born in Cuba and raised in Miami, Solange began her career at the University of Miami’s Life Alliance Organ Recovery Agency, where she served in multiple roles. She later transitioned into nursing before continuing her work in birth tissue recovery. Solange is dedicated to supporting mothers throughout their donation journey and educating the community on the impact of regenerative medicine. In her free time, Solange enjoys reading, Florida beaches, and discovering new adventures.

Jaylyn McCullough

Hospital & Community Development Liaison

Raised in Rochester, New York, Jaylyn discovered her passion for healthcare advocacy while working in hospital development for an organ procurement organization. She is deeply inspired by the impact of organ, eye, tissue, and living donation, and remains dedicated to raising awareness through education and outreach. Now based in Fort Lauderdale, Florida, Jaylyn enjoys practicing yoga, relaxing on the beach, and embracing the sunshine in her coastal community.