Gamma Knife in the News
Scott Hamilton spoke about his personal experience with Gamma Knife surgery in an interview with Katie Couric on NBC's "Today Show". Choose a download speed below to watch the video.
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Leksell Gamma Knife®
Contact Info
U.S. NeuroSurgical
2400 Research Blvd, Suite 325
Rockville, MD 20850
1(800) 990-0293


Alan Gold, President & Chairman

Alan Gold was a founder of USN in 1993 and has been President and Chairman since 1996. Mr. Gold has also been a director of USN since its formation in 1993. He served as President and director of GHS from its formation in 1983 through 1999. He was a founder and President of Global Health Systems, the predecessor of GHS, from its formation in July 1983 until its sale in 1997.

Susan Greenwald, Vice President and Secretary

Susan Greenwald has served as Vice President of Marketing Communications and as Secretary of USN since May 1999. She performed services for GHS in the same capacity from its inception in 1983 through May 1999. Ms. Greenwald was one of the founders of Global Health Systems, the predecessor of GHS, and served as its Vice President of Marketing Communications from 1983 until its sale in 1997.

William Schneider, Executive Vice President of Business Development

Mr. Schneider directs business development, Sales, and Marketing. He works with clients to implement marketing strategies including education of physicians, utilization review staffs, and the public. Mr. Schneider organizes seminars and grand rounds for Gamma Knife physicians. He has a Bachelor of Science Degree in Biology from Notre Dame and an MS Degree in Medical Biology from Long Island University. Mr. Schneider serves on the Board of Directors for the Brain Tumor Foundation in New York City and The Southern California Radiosurgical Center in Riverside, Ca. Mr. Schneider's offices are located in The NYU Langone Medical Center where he serves as advisor to the neurosurgical and radiation oncology services.


William F. Leimkuhler, Director

William F. Leimkuhler has served as director of USN since May 1999. He also served as a director of GHS since its inception in 1984 through November 1999. Mr Leimkuhler is currently the Director of Business Development for Paice Corporation, the developer of an advanced hybrid electric powertrain for passenger vehicles, a position he has held since October 1999. He also acts as a consultant on corporate and business development matters to several emerging growth companies. From January 1994 until October 1999, he served as Vice President and General Counsel of Allen & Company Incorporated, an investment banking firm.

Charles H. Merriman, III, Director

Charles H. Merriman, III has served as a director of USN since May 1999. He also served as a director of GHS from October 1997 to November 1999. Mr. Merriman retired at the close of the year 2001 from service as Senior Vice President and Managing Director of BB&T Capital Markets ("BB&T"), an investment banking enterprise, where he was employed in various capacities since 1972. Mr. Merriman has extensive knowledge of USN's primary focus on healthcare and technology.

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