Co-Founder & Partner

Dr. Heighten is a founding partner 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 a founding partner of Metroplex Emergency Physicians Associates, P.A. which employed and managed emergency medicine physicians at 23 hospitals when it was sold in 1998 to EMCARE (now Envision. NYSE: EVHC).

In 1994, Dr. Heighten founded Medical Edge Healthcare Group, P.A. (MEHG). MEHG, which employed over 400 doctors and mid-level providers, 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 was also a founder and board member of Physerve Physician Services. Physerve and MEHG were acquired by the $9 billion North Texas health system, Texas Heath Resources in 2010.

Dr. Heighten was a founder and served on the board of directors of Physician Support Resources (PSR), an emergency medicine management services company contracting or employing over 1000 emergency medicine and primary care physicians across the United States. PSR was sold to Intermedix (NASDAQ: RCM) in 2012.

Dr. Heighten is a founder and serves on the board of directors of Caddis Partners (, a healthcare real estate development and management company. Caddis has a nationwide footprint having developed or acquired over $1 billion in healthcare real estate assets including active and supported senior living under the Heartis trademark (

As a founding member of Green Park and Golf Ventures Dr. Heighten has participated in the evaluation of and investment in just under 100 healthcare and technology companies. He is a co-founder of Dallas based Health Wildcatters (, a healthcare focused business accelerator that has graduated 8 classes of accelerated companies who have collectively raised over $200 million in capital investments in the last eight years.

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, treatment of autistic spectrum disorders. Clay and Debra have participated in helping establish the Jon Brigham Heighten Endowed Scholar program and the Center for Adults with Developmental Disorders at The University of Texas Southwestern Medical Center. Clay and Debra are founders of the 29 Acres organization. 29 Acres’ mission is to empower adults with autism to live a life of purpose and joy (