Management Team


Chief Executive Officer

Dr. Donald L. Kramer is a board certified anesthesiologist who is licensed to practice medicine in the state of Texas. After graduation from Jefferson Medical College in 1981, Dr. Kramer practiced general medicine until 1990 when he entered anesthesiology training in New York then pain management fellowships at Harvard University and Texas Tech University. In 1994, Dr. Kramer developed a private clinical practice in Houston from which he retired to direct Northstar Healthcare Inc.’s initial public offering. He served as Northstar’s first CEO. Dr. Kramer has been a partner in, managed or developed more than thirty outpatient surgical centers. Dr. Kramer lives in Houston with his wife and four daughters. He recently completed the M.B.A. at the University of Texas.

Thomas O. Foster III

Chief Financial Officer

Thomas Foster practiced federal and cross-border taxation (international, state and local) for 30 years (through 1997) at Exxon. Mr. Foster presented numerous tax presentations and meetings with various foreign governments (including China) on local and U.S. tax issues of concern to U.S. oil companies. He managed state income tax litigation (including various major Alaska tax cases). He coordinated industry efforts to challenge states’ positions on various tax issues in state and federal courts, including the U.S. Supreme Court.

Prior to Exxon, Mr. Foster practiced tax law with Fischer, Wood, Burney & Nesbitt in Corpus Christi, Texas and with T. Jack Foster & Sons in Foster City, California as tax counsel. Thirty years’ experience with Exxon Corporation in multi-state and local taxation; federal and international taxation (including foreign taxes applicable to companies operating abroad); sophisticated business tax planning; and tax litigation.

Mr. Foster received his LLM in taxation from New York University School of Law in 1965, his JD from Baylor University School of Law in 1964 and his BBA from Baylor University School of Business in 1961.

Mr. Foster is a CPA and admitted to practice law in the State of Texas.


Director of Clinical Operations

Dr. Efird is licensed to practice Chiropractic Medicine in Texas and New York state. After graduating from Texas Chiropractic College in 2003 he began his practice in a multidisciplinary clinical setting and became a team member of numerous allopathic spine teams. Dr. Efird is founder and CEO of Diagnostic and Interventional Spine Centers of Texas owning and operating five clinical locations in greater Houston area and one clinical location in Dallas. Dr. Efird is faculty staff for the National Academy of Manual and Physical Medicine, National Academy of MUA physicians and a state advisor for the Texas Chiropractic Association and Texas Board of Chiropractic Examiners. He holds numerous appointments with state and national associations and has great experience in educating physicians clinically and operationally. Dr. Efird left clinical practice in 2010 to join Northstar Healthcare Inc. overseeing center operations and business development. He lives in Sugar Land Texas with his wife and two sons. Dr. Efird’s clinical and corporate knowledge within allopathic and complementary and alternative medicine have been obtained by a moral foundation, strong work ethic, and continued strive for knowledge and education.


Corporate Counsel

Prior to joining Northstar, Matt worked as an associate at Mintz Levin Cohn Ferris Glovksy and Popeo in Boston Massachusetts and as a staff attorney for Keystone Dental, Inc., in Burlington, Massachusetts. As an attorney at Mintz Levin, Matt worked in the Employment Labor and Benefits group, advising clients on general employment matters and employment litigation. As a staff attorney at Keystone Dental, Matt worked closely with outside corporate counsel, intellectual property counsel, and the regulatory, marketing, and finance teams. He conducted due diligence for a multimillion-dollar revolving credit facility and drafted numerous agreements, including volume incentive agreements, customer inventory management agreements, and contracts for marketing educational programs. He received his J.D. from Tulane University Law School, cum laude,where he was the senior notes and comments editor for Vol. 33 of the Tulane Maritime Law Journal and served as a senior justice of the Moot Court Board. He received his B.A. in History from Boston College, summa cum laude and was elected into Phi Beta Kappa.