OKLAHOMA CITY, OK--(Marketwire - Mar 28, 2012) - Graymark Healthcare, Inc. (NASDAQ: [ GRMH ]), the nation's second largest provider of diagnostic sleep services and an innovator in comprehensive care for obstructive sleep apnea (OSA), has partnered with the Medical Center of Arlington in South Arlington, Texas to offer comprehensive sleep medicine services to city residents and the mid Dallas-Fort Worth area.

The Medical Center of Arlington (MCA) facility operates under the Hospital Corporation of America. MCA features four beds accommodating overnight stays in comfortable surroundings designed for proper diagnosis, which is followed up by Graymark's comprehensive sleep medicine program. The facility is expected to benefit from MCA's highly-skilled medical staff for the administration and management of Graymark's comprehensive care model.

The agreement represents Graymark's 101^st location nationwide, consisting of 15 standalone facilities, seven therapy facilities and 79 hospital or rural outreach locations. MCA also represents their ninth location in the Dallas-Fort Worth region, making Graymark the market leader in terms of number of sleep studies conducted in the area.

"Our partnership with the Medical Center of Arlington reflects the continued market acceptance we've been enjoying for our comprehensive model of diagnosing and treating patients afflicted by sleep apnea," said Stanton Nelson, CEO of Graymark Healthcare. "We plan to further consolidate the Dallas-Fort Worth market, while remaining committed to delivering exceptional sleep medicine and leveraging our professional support staff already established in the region."

These sleep medicine programs augment the company-owned, freestanding facilities, and are an important part of Graymark's go-to-market strategy. This is due to the relatively low start-up cost and more rapid deployment, as well as lower ongoing administrative time and expense. Graymark's OSA patients also benefit from the full and immediate resources of a well-established, professionally operated medical facility.

"Graymark's unique approach to treating sleep-related health issues, particularly OSA, was a key driver in the formation of our partnership," said Timothy Everidge, Director - Ancillary Services at MCA. "We are confident their extensive experience with sleep management, coupled with our established clinical excellence, will provide the residents of Arlington and surrounding areas with exceptional comprehensive care."

To find out more or to locate a sleep center near you, visit [ www.graymarkhealthcare.com ].

About the Medical Center of Arlington

Medical Center Arlington (MCA) is a 340-bed, acute care hospital located in South Arlington at the corner of Matlock Road and Mayfield Road, just north of US Interstate 20. MCA has been serving Arlington and its surrounding communities for over 35 years. MCA is the hometown hospital for the Texas Rangers and offers everyone -- from the American League All-Stars to the Arlington Little League All-Stars -- excellent clinical care through its Sports Medicine Program and Emergency Department. A proud community partner, Medical Center Arlington is the place for quality care close to home. For more information, visit [ www.MedicalCenterArlington.com ] or call 855-868-MCOA.

About Graymark Healthcare

Headquartered in Oklahoma City, Okla., Graymark Healthcare, Inc. (NASDAQ: [ GRMH ]) is the nation's second largest provider of sleep management solutions. In addition to diagnosing and treating over 80 sleep disorders, the company specializes in comprehensive care for Obstructive Sleep Apnea (OSA). Graymark offers its services through 101 sleep laboratories primarily in the Midwest, including standalone or IDTF facilities, therapy facilities, rural outreach hospital sites and urban hospital management agreements. For more information, visit [ www.graymarkhealthcare.com ].

Important Cautions Regarding Forward-Looking Statements

This press release contains forward-looking statements that are based on the Company's current expectations, forecasts and assumptions. Forward-looking statements involve risks and uncertainties that could cause actual outcomes and results to differ materially from the Company's expectations, forecasts and assumptions. These risks and uncertainties include risks and uncertainties not in the control of the Company, including, without limitation, the risk that the transaction does not close as planned or at all, the current economic climate and other risks and uncertainties, including those enumerated and described in the Company's filings with the Securities and Exchange Commission, which filings are available on the SEC's website at [ www.sec.gov ]. Unless otherwise required by law, the Company disclaims any intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.