Carl Tietjen

Greater New York Hospital Association operates a trade association. It provides advocacy services for hospitals and care facilities. The company was founded in 1904 and is headquartered in New York, NY.

Post Acute Partners LLC owns and operates post acute healthcare facilities and services. It also invests in companies across the continuum of post acute health care, including skilled nursing, assisted living and inpatient rehabilitation facilities. The company was founded by Jeffrey Rubin and Warren D. Cole in 2010 and is headquartered in New York, NY.

RRHA Joint Ventures Corp. provides medical and health care services. The company was founded in 1982 and is headquartered in Rochester, NY.

Part of Greater New York Hospital Association, Inc., Nexera, Inc. is a national healthcare consulting firm that specializes in supply chain and performance improvement. The company is based in New York, NY. The company ties total costs and care quality to financial reimbursements to deliver value-driven healthcare business results. Nexera tailors their work to client resources and culture to create sustainable results for health system transformation. The CEO of the company is Lee H. Perlman.

Hatzimemos/Libby Holdings LLC (H/L Ventures) is a venture capital firm founded in 2009 by Eric Hatzimemos and Oliver B. Libby. The firm is headquartered in New York.

YMCA of Greater New York operates as a community service organization. The company was founded in 1852 and is headquartered in New York, NY.

Mercy Flight Central, Inc. provides air medical services. It offers air medical services, air communication services, hospital education seminars and ground crew safety training. The company was founded in 1992 and is headquartered in Canandaigua, NY.

St. Ann's Home for The Aged provides skilled nursing care facility services. The frim offers communities, assisted living, durand senior apartments, leo center for caring, nursing home care, rehab/transitional care and wound care services. The company was founded in 1873 and is headquartered in Rochester, NY.

Innovatix LLC provides group purchasing and consulting services. It offers negotiated contract discounts for various product categories, including blood products, capital equipment, enteral nutrition products and equipment, foodservice distribution, supplies and equipment, medical supplies, laboratory services and IT equipment and supplies. The company was founded in 1993 and is headquartered in New York, NY.

Part of Premier, Inc., Essensa Ventures LLC is a company that provides group purchasing and consulting services. The company is based in New York, NY.

White Plains Hospital Center provides healthcare services. The firm provides orthopedics, obstetrics and neonatology, cancer care and cardiology services. The company was founded in 1883 and is headquartered in White Plains, NY.

The New York Association For Business Economics engages in business economics. It provides leadership in the use and understanding of economics. The company is headquartered in New York, NY.

Ernst & Young provides accounting services. Its services include auditing, accounting, tax and transaction services, assurance and advisory business, online transaction advisory and a wide range of financial services. The company was founded by Arthur Young and Alwin C. Ernst in 1881 and is headquartered in Kansas City, MO.

Part of New York Hospital, Columbia Presbyterian Medical Center is a healthcare organization that includes hospitals, nursing homes, and ambulatory care centers. Columbia Presbyterian Medical Center was acquired by New York Hospital on July 25, 1996.

New York Hospital is a healthcare company that operates hospitals, nursing homes, and ambulatory care centers. The private company is based in Flushing, NY and has subsidiaries in the United States.