About Miami Children's Hospital

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happiness of children everywhere. 

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Tim Birkenstock
Interim President & CEO

Tim Birkenstock

Mr. Birkenstock joined Nicklaus Children’s Hospital in 2012 and has over 35 years of experience in healthcare finance. He has overall responsibility for the financial management of the Nicklaus Children's Health System.

Prior to joining Nicklaus Children's Hospital, Mr. Birkenstock served as Treasurer and Chief Financial Officer of Children’s Hospital and Health System, Inc. in Milwaukee, Wisconsin from 1991 to 2011. He served as Director of Financial Services of CHW from 1984 to 1990 and Director of Internal Audit from 1983 to 1984. Mr. Birkenstock has served on the Financial Services Advisory Council and the Research and Development Committee for Children’s Hospital Association (CHA).

He has served as President of the Milwaukee Chapter of Financial Executives International, associate clinical professor for The Medical College of Wisconsin, guest faculty at the University of Wisconsin and the Milwaukee School of Engineering, and has lectured on numerous health care finance issues for many national groups and conferences. He is a past President and Board Member of the Wisconsin Chapter of the Healthcare Financial Management Association and also has served as its Treasurer, Secretary, and Vice President.

Mr. Birkenstock received a Bachelor’s Degree in Business Administration with a major in Accounting from the University of Wisconsin at Whitewater in 1975. Mr. Birkenstock is a Certified Public Accountant and a member of the American Institute of Certified Public Accountants and the Wisconsin Institute of Certified Public Accountants.

Richard Perez, CPA
Chief Financial Officer and Executive Director of Talent Management & Effectiveness

Richard joined Nicklaus Children's Hospital Foundation in 2003. He oversees finance, talent management/human resources, IT, legal, equipment and facilities. Richard received his bachelor’s degree in business administration with a concentration in accounting from Florida International University. Richard passed the CPA exam in the State of Georgia and worked as an auditor in Price Waterhouse’s Miami Office. In this position Richard worked on the audit of many private not-for-profit clients. Richard left Price Waterhouse to become the Chief Financial Officer for the Association for Retarded Citizens of South Florida and prior to joining Nicklaus Children's Hospital Foundation, was the Chief Financial Officer of the Miami-Dade/Monroe WAGES Coalition. Richard stays involved in the community by serving as a volunteer basketball and baseball coach for several youth leagues and remains committed to his alma mater by funding a yearly scholarship for accounting students at Florida International University.

Michael A. Mowatt
Executive Director of Philanthropy

Michael joined Nicklaus Children's Hospital Foundation in 2009 and oversees Major Gifts and the Development Department Team, responsible for raising critical funds to meet the needs of Nicklaus Children’s Hospital as they continue to grow into a world class care organization.  Michael has more than 25 years of non-profit development experience working with local non-profit health care organizations.   Prior to joining Nicklaus Children's Hospital Foundation, he served as the Director of Founders and Member Services at Mount Sinai Medical Center.  Michael is of Jamaican decent, born in Columbia, Maryland, and has been a resident of Miami since 1983.  He maintains a strong connection with the community and is dedicated to making a difference in the lives of children everywhere.

Maria Moldes
Senior Director Programs & Community Relations

Maria joined Nicklaus Children’s Hospital Foundation in 1994. She oversees the Children’s Miracle Network Hospitals, Corporate and Events teams which are responsible for raising funds for the hospital in order to meet the growing needs of our community.  Her teams increase fundraising results, awareness and donor base by securing gifts and cultivating new partnerships.

Maria has a strong commitment to the hospital as she grew up a few blocks away from it and has seen first-hand the tremendous growth  of the main campus and advancements in medical technology over the years.  She is proud to be a member of the Foundation team dedicated to raising funds in order for the hospital to continue providing world-class pediatric care to children from South Florida and around the world.

3100 S.W. 62 Ave., Miami, Florida 33155

Main Phone: 305.666.2889 | Toll Free: 800.987.8701 | Fax: 305.666.3078
Nicklaus Children's Hospital Foundation is a tax-exempt 501(c)(3), Charity number 59-1720704.