Contact: Douglas B. Chappell
Chief Financial Officer
(615) 250-1770

Nashville, TN (April 8, 2009) -- Ambulatory Services of America, Inc. announced that Red Rocks Dialysis, LLC, a newly formed joint venture, has completed the acquisition of three dialysis centers in the Gallup, New Mexico area from Rehoboth McKinley Christian Health Care Services (RMCHCS). Red Rocks Dialysis is a joint venture between ASA's dialysis subsidiary, Innovative Dialysis Systems, and local physicians, Oladipo Adeniyi, M.D. and James Whitfield, M.D.

At the time of the acquisition, the program provided services to more than 360 patients, through outpatient, acute, and home dialysis programs in Gallup, Zuni, and Crownpoint, New Mexico. Red Rocks Dialysis, in conjunction with Innovative Dialysis Systems, has been managing the program since September 2008. Drs. Adeniyi and Whitfield continue to serve as medical directors in the three facilities and the home program.

Dr. Adeniyi said, "We are pleased to join with a strong, national company as we strive to bring top-notch medical care to the growing number of dialysis patients in and around Gallup. IDS and ASA have a proven history of delivering high quality patient care, and we look forward to a very successful and rewarding partnership."

Timothy Martin, President and Chief Executive Officer of ASA, said, "We are pleased to welcome the physicians, patients, and staff members of the Red Rocks Dialysis facilities to the ASA team. We believe that Rehoboth McKinley Christian Health Care Services built a quality dialysis program in the Gallup area, and we look forward to working with Drs. Adeniyi and Whitfield to build on the legacy of RMCHS to bring superior care to the kidney patients in the community."

"We looked for a partner that would be committed to the dialysis patients in the communities that we serve," said Dr. Whitfield. "Not only does IDS have the right background and experience to help us grow our program, but they also share our passion for patient care. We have enjoyed working with the IDS team over the last several months, and we look forward to continuing our relationship."

Ambulatory Services of America, Inc., headquartered in Brentwood, Tennessee, is a diversified health care services company that provides alternative site services in partnership with physicians. ASA, through its primary subsidiaries, Radiation Oncology Services of America, Inc. and Innovative Dialysis Systems, owns, operates, and manages facilities providing radiation oncology services and dialysis services. After the acquisition, ASA will own interests in and operate 47 dialysis centers and 17 radiation oncology centers in twelve states and the territory of Guam. ASA also manages three other dialysis centers.

Contact: Douglas B. Chappell
Chief Financial Officer
(615) 250-1770

AMBULATORY SERVICES OF AMERICA, INC.
COMPLETES PURCHASE OF MAJORITY INTEREST IN
ROSA OF GEORGIA, LLC

Nashville, Tennessee (January 7, 2009) - - Ambulatory Services of America, Inc. announced that it had completed the purchase of additional interests in ROSA of Georgia, LLC, a joint venture between ASA's subsidiary, Radiation Oncology Services of America, Inc, and American Oncology Associates, LLC. Following the purchase, Radiation Oncology Services of America will own a majority interest in ROSA of Georgia.

ROSA of Georgia offers state-of-the-art cancer treatment services, including intensity-modulated radiation therapy (IMRT), image-guided radiation therapy (IGRT) and high dose rate brachytherapy in its outpatient facilities. The joint venture was formed in March 2007; it owns and operates eight radiation oncology centers in Georgia and Florida. Four of ROSA of Georgia's facilities are affiliated with the Georgia Center for Total Cancer Care, the largest provider of oncology/hematology services in the Southeast and a national leader in cancer treatment and research. American Professional Associates, LLC - - a physician practice including 16 radiation oncologists - - will continue to provide physician services to patients being treated at the facilities and to serve as medical director of the facilities.

"As our relationship with ASA and ROSA has grown and matured, we have seen firsthand the benefits of having a strong, national company as a partner," said Dale McCord, M.D., President and Chief Executive Officer of American Professional Associates and American Oncology Associates. "We look forward to transitioning to the next phase of that relationship."

Timothy Martin, President and Chief Executive Officer of ASA, said, "Our partnership with American Oncology Associates has helped to raise the bar on clinical performance for the industry. Providing the highest quality of care for our patients remains our mission, and ROSA of Georgia will continue to be focused on bringing the best treatment and service to cancer patients in Georgia and the Florida panhandle."

Ambulatory Services of America, headquartered in Brentwood, Tennessee, is a diversified health care services company that provides alternative site services in partnership with physicians. ASA, through its primary subsidiaries Radiation Oncology Services of America, Inc. and Innovative Dialysis Systems, Inc., owns and operates 17 radiation oncology centers and 44 dialysis centers in eleven states and the territory of Guam.

Contact: Douglas B. Chappell
Chief Financial Officer
(615) 250-1770

AMBULATORY SERVICES OF AMERICA, INC.
ANNOUNCES JOINT VENTURE WITH GULF COAST CANCER CENTERS

Nashville, Tennessee (January 7, 2009) - - Ambulatory Services of America, Inc. announced the formation of ROSA of South Alabama, LLC, its seventh radiation oncology joint venture. ROSA of South Alabama is a joint venture among Gulf Coast Cancer Center - Gulf Shores, P.C., Monroeville Radiation - Oncology, P.C., and South Alabama Radiation Oncology, P.C., and ASA's subsidiary, Radiation Oncology Services of America, Inc. ROSA of South Alabama will own and operate four radiation oncology facilities in Gulf Shores, Brewton, Foley and Monroeville, Alabama.

ROSA of South Alabama will offer state-of-the-art cancer treatment services, including intensity-modulated radiation therapy (IMRT), image-guided radiation therapy (IGRT), and stereotactic body radiation therapy (SBRT) in the facilities. The joint venture expects to build on Gulf Coast Cancer Centers' legacy of providing high-quality cancer care to the residents and visitors to the south Alabama region. The physicians currently serving patients at each facility will continue to provide physician services to patients being treated at the facilities. William Hixson, M.D. will serve as medical director for each of the facilities.

Dr. Hixson said, "When considering a partnership, we looked for a strong, growing company that not only brings business expertise to the table but, most importantly, also shares our passion for patient care. We look forward to working with ASA and ROSA as we continue our mission of providing superior care and service to the growing number of cancer patients in the Gulf Coast area."

Timothy Martin, President and Chief Executive Officer of ASA, said, "We are pleased to welcome the physicians and staff of Gulf Coast Cancer Centers to the ASA family. Dr. Hixson and his team are recognized in the industry as providers of high-quality cancer care through state-of-the-art technology, treatments and procedures. We look forward to working with them to continue to provide excellent service to cancer patients in the Gulf Coast region."

Ambulatory Services of America, headquartered in Brentwood, Tennessee, is a diversified health care services company that provides alternative site services in partnership with physicians. ASA, through its primary subsidiaries Radiation Oncology Services of America, Inc. and Innovative Dialysis Systems, Inc. owns, operates and manages facilities providing radiation oncology services and dialysis services. After the formation of ROSA of South Alabama, ASA will own interests in and operate 17 radiation oncology centers and 44 dialysis centers in eleven states and the territory of Guam.

Contact: Douglas B. Chappell
Chief Financial Officer
(615) 250-1770

INNOVATIVE DIALYSIS SYSTEMS REVIEWS PROGRESS IN 2008

Philadelphia, PA (November 7, 2008): Innovative Dialysis Systems (IDS), and its parent company, Ambulatory Services of America, Inc. (ASA), reviewed the substantial progress they had made in developing their dialysis services business during 2008. In December 2007, ASA completed the acquisition of IDS and many of its related joint ventures, which owned and operated 35 dialysis programs in California, Ohio, Oregon, Wyoming and Guam.

"2008 has been a terrific year for IDS and ASA," said Vincent Dennis, M.D., ASA's Senior Medical Advisor, speaking at the annual conference of the American Society of Nephrology in Philadelphia, Pennsylvania. "During this year of transition and in the face of implementing changes to comply with the new Medicare conditions of coverage, we have continued IDS' historic focus on providing high-quality care in partnership with local physicians, while the company experienced substantial growth. We are very pleased by the improvement in clinical outcomes of the patients receiving care in our centers," Dr. Dennis concluded.

At the time it acquired IDS, ASA owned and operated three dialysis clinics in San Antonio, Texas. During 2008, IDS has opened de novo facilities in Texas, Ohio and Guam, and it currently has several others under development. In addition, in June, IDS acquired three dialysis centers in St. Louis, Missouri, which were previously owned by Affiliated Hospital Dialysis Centers. As of November 1, 2008, IDS owned interests in and operated 44 dialysis centers. It also managed eight other dialysis centers, three of which it expects to acquire in the near future. IDS also provides inpatient acute dialysis services under contracts with four hospitals.

"This has been an exciting year for us," said Larry Jones, President and Chief Operating Officer of IDS. "We have built on the clinical and operating legacy of IDS to deliver great care for patients while managing growth. We are looking forward to continuing to build on this platform in the future as we continue our aggressive plans to develop de novo dialysis centers and to complete acquisitions with leading physicians."

IDS continues to drive growth for the ASA family. Along with ASA's other subsidiary, Radiation Oncology Services of America (ROSA), IDS has helped ASA grow to include 58 owned sites of service in 10 states and the territory of Guam.

Timothy Martin, President and Chief Executive Officer of Ambulatory Services of America, said "With today's volatile market conditions, it has become more important than ever for physicians to choose their partners with great care. ASA's strong balance sheet, along with our demonstrated commitment to clinical excellence, has proven to be attractive for nephrologists who are considering a joint venture partner. We are honored to partner with some of the leading physicians in the business, and we look forward to an even more successful 2009."

Ambulatory Services of America, headquartered in Brentwood, Tennessee, is a diversified health care services company that provides alternative site services in partnership with physicians. ASA, through its primary subsidiaries Innovative Dialysis Systems and Radiation Oncology Services of America, owns, operates and manages facilities providing radiation oncology services and dialysis services. As of November 1, 2008, ASA owns interests in and operate 44 dialysis centers and 13 radiation oncology centers in nine states and the territory of Guam. ASA also manages eight other dialysis centers, three of which it expects to acquire in the near future.