Meet the Team
Mr. Carl Soderstrom

Mr. Soderstrom is a founding partner of Green Park & Golf Ventures, an early stage venture capital investment company. He is a member of the board of directors of Caddis Partners, a Dallas based healthcare real estate investment firm. Additionally he serves on the Board of Dallas-based PerioSciences. Finally, and most recently, Mr. Soderstrom co-founded Dallas based Health Wildcatters, a healthcare focused accelerator. Mr. Soderstrom served as Chairman of the Board and Chief Executive Officer of PhyServe Physician Services, Inc. for 14 years before joining THPG, and has 23 years of experience in physician practice management.

Prior to joining PhyServe, he was Chief Operating Officer for Metroplex Emergency Physicians for two years, a company that ultimately spun off the initial practices that became the first clients of PhyServe. Mr. Soderstrom lead the effort to sell that medical group to EmCare in 1998. From 1989- 1996, he worked for Coastal Healthcare Group, Inc. in North Carolina, helping to grow the company to $750M and become one of the first physician practice management companies to go public in 1992. Mr. Soderstrom served as Chief Operating Officer of the $500M Emergency Services Division until 1996.

Mr. Soderstrom attended Illinois State University where he received his B.A. in business, and received his MBA from The University of Notre Dame in 1988. He was recognized as a finalist in 2010 for Ernst & Young's "Entrepreneur of the Year" in the Southwest Region of the United States.

Carl sits on the Board of Directors for Caddis, Nasseo, Periosciences, Health Wildcatters, and Cancer Gene Connect.



Dr. Clay Heighten

Dr. Heighten is a founding member of Green Park and Golf Ventures. After completion of residency training at the Southwestern Medical School affiliated Parkland Hospital program in Dallas, Texas he practiced Emergency Medicine for 13 years. In the early 1990’s Dr. Heighten was one of five physicians founding Metroplex Emergency Physicians Associates, P.A. “MEPA”. MEPA employed and managed emergency medicine providers contracting with 23 hospitals at its peak in Texas and surrounding states. MEPA was sold in 1998 to EMCARE a publiCally traded emergency services provider.

In 1994, Dr. Heighten founded the physician organization that ultimately became known as Medical Edge Healthcare Group, P.A. “MEHG”. MEHG at the time of its acquisition in 2010 by Texas Health Resources, “THR”, employed over 400 doctors and mid-level providers and owned facilities providing a comprehensive range of ancillary and laboratory services that in aggregate accounted for over 1.5 million patient encounters per year. Dr. Heighten completed the integration of MEHG into the Texas Health Physician Group in 2013.

Dr. Heighten was also a founder and board member of Physerve Physician Services, “Physerve”. Physerve provided comprehensive management support to multiple physician groups across the USA and was also sold to THR.

Dr. Heighten is also a founding member of Caddis Partners, a real estate development and management company specializing in healthcare properties. Caddis has consistently ranked as a top developer by number of square feet developed in North Texas. Dr. Heighten serves on multiple boards of directors of early stage healthcare companies and is a co-founder of Dallas based Health Wildcatters, a healthcare focused business accelerator.


Along the way Dr. Heighten has served on the boards of hospitals, insurance entities and technology companies. He is married to Dr. Debra Caudy, a medical oncologist and has four children. His philanthropic interests are devoted to the understanding, prevention and treatment of autistic spectrum disorders.

Mr. JR Garcia

Mr. Garcia joined Green Park & Golf Ventures in June 2011. As a Principal of the firm, he is responsible for sourcing and evaluating startup and early-stage investments in the healthcare and technology sectors, performing due diligence, and portfolio company and fund management. Mr. Garcia has prior operational and financial management experience at FedEx, Bold Ventures, and Lone Star Investment Advisors.

Mr. Garcia received his MBA from the Cox School of Business at Southern Methodist University in Dallas with concentrations in both Finance and Strategy and Entrepreneurship as well as a specialization in Alternative Asset Management. He graduated from the University of Notre Dame with a bachelor’s degree in Finance and a second major in Sociology. When not working with the portfolio companies or other startups, Mr. Garcia enjoys spending time with his wife, son and two dogs in Dallas.

Dr. Patrick Dospoy

Dr. Dospoy joined Green Park & Golf in 2015 as an Analyst. Prior to joining Green Park & Golf, he completed his graduate studies in the Cancer Biology program at UT Southwestern Medical Center. During his doctoral studies, Dr. Dospoy was admitted to a competitive training track funded by the Howard Hughes Medical Institute, which provided clinical training beyond that of a traditional Ph.D. program. Additionally, he completed an internship at 2M, the family office for the Morton H. Meyerson family, where he worked directly with the biotech investment team to better understand potential investment opportunities, and to generate a market opportunity assessment for a nascent but growing market in the life sciences.

Prior to joining UT Southwestern, Dr. Dospoy worked as an Analyst for ClearView Healthcare Partners, a boutique strategy consulting firm focused on the life science industry. Here, he was the lead analyst on various project types, including access and reimbursement strategy, life cycle management, market opportunity assessment and pipeline prioritization.

Dr. Dospoy earned his B.A. in Biological Sciences from The University of Chicago, and his Ph.D. in Biomedical Sciences from the University of Texas Southwestern Medical Center.