Counties We Serve
Community Partners of WNY
Millenium Collaborative Care
Care Compass Network
Central New York
Bassett Medical Center
Adirondack Health Institute
Alliance for Better Health Care
SUNY at Stony Brook
Albany Medical Center
Refuah Community Health
Samaritan Medical Center
New York City Area
NYU Lutheran Medical Center
Bronx-Lebanon Hospital Center
Advocate Community Provider
The NYC Health and Hospitals
The New York and Presbyterian Hospitals
Mount Sinai PPS
Maimonides Medical Center
SBH Health System
Westchester Medical Center
Montefiore Medical Center
Millennium is igniting health care change by partnering with physicians, health care providers and community-based organizations to improve the delivery of health care for Medicaid patients across the eight counties of Western New York. (Allegany, Cattaraugus, Chautauqua, Erie, Genesee, Niagara, Orleans, and Wyoming)
Allegany County is located in the Southern Tier of the state of New York. As of the 2010 census, the population was 48,946. Its county seat is Belmont. Its name derives from a Delaware Indian (Lenape) word, applied by European-American settlers of Western New York State, to a trail that followed the Allegheny River and then used for the county.
Cattaraugus County is located in the western part of the state of New York, with one side bordering Pennsylvania. As of the 2010 census, the population was 80,317. The county seat is Little Valley. The county was created in 1808 and later organized in 1817.
Chautauqua County is the westernmost county in the state of New York. As of the 2010 census, the population was 134,905. Its county seat is Mayville, and its largest city is Jamestown. Its name is believed to be the lone surviving remnant of the Erie language, a tongue lost in the Beaver Wars; its meaning is unknown and a subject of speculation. The county was created in 1808 and later organized in 1811.
Erie County is the largest county in Western New York. As of the 2010 census, the population was 919,040. The county seat is Buffalo. The county’s name comes from Lake Erie, which in turn comes from the Erie tribe of Native Americans who lived south and east of the lake before 1654. Its Canadian border is the province of Ontario.
Erie County is part of the Buffalo–Niagara Falls metropolitan area. The county’s southern part is known as the Southtowns.
Genesee County is located to north east of Erie County. As of the 2010 census, the population was 60,079. Its county seat is Batavia. Its name is from the Seneca Indian word Gen-nis’-hee-yo, meaning “the Beautiful Valley”. The county was created in 1802 and organized in 1803.
Genesee County comprises the Batavia, NY Micropolitan Statistical Area, which is also in the Rochester-Batavia-Seneca Falls, NY Combined Statistical Area. It is in Western New York.
Niagara County is located to the north of Erie County. As of the 2010 census, the population was 216,469. The county seat is Lockport. Niagara County is part of the Buffalo-Niagara Falls metropolitan area, and its Canadian border is the province of Ontario.
It is the location of Niagara Falls and Fort Niagara, and has many parks and lake shore recreation communities.
Orleans County is located north of Genesee County. As of the 2010 census, the population was 42,883. The county seat is Albion. The name is in honor of the French Royal House of Orleans.
Orleans County is part of the Rochester, NY Metropolitan Statistical Area.
Wyoming County is located in the state’s western area. As of the 2010 census, the population was 42,155. The county seat is Warsaw. The name is from a modified Delaware Indian word meaning “broad bottom lands”. Wyoming County was formed from Genesee County in 1841.