The analysis broke down the market share by the state and city level. Here are the largest PBMs in every state:
Alabama
Prime Therapeutics — 86 percent market share
Alaska
Express Scripts — 75 percent market share
Arizona
OptumRx — 53 percent market share
Arkansas
CVS/Caremark — 49 percent market share
California
Kaiser Pharmacy — 48 percent market share
Colorado
Kaiser Pharmacy — 26 percent market share
Connecticut
Express Scripts — 36 percent market share
Delaware
Express Scripts — 78 percent market share
District of Columbia
CVS/Caremark — 35 percent market share
Florida
Prime Therapeutics — 42 percent market share
Georgia
IngenioRx — 30 percent market share
Hawaii
CVS/Caremark — 64 percent market share
Idaho
CVS/Caremark — 54 percent market share
Illinois
Prime Therapeutics — 59 percent market share
Indiana
IngenioRx — 50 percent market share
Iowa
CVS/Caremark — 61 percent market share
Kansas
Prime Therapeutics — 47 percent market share
Kentucky
IngenioRx — 59 percent market share
Louisiana
Express Scripts — 71 percent market share
Maine
IngenioRx — 56 percent market share
Maryland
CVS/Caremark — 39 percent market share
Massachusetts
CVS/Caremark — 58 percent market share
Michigan
Express Scripts — 89 percent market share
Minnesota
Prime Therapeutics — 51 percent market share
Mississippi
Prime Therapeutics — 49 percent market share
Missouri
OptumRx — 39 percent market share
Montana
Prime Therapeutics — 51 percent market share
Nebraska
Prime Therapeutics — 46 percent market share
Nevada
OptumRx — 47 percent market share
New Hampshire
IngenioRx — 52 percent market share
New Jersey
Prime Therapeutics — 35 percent market share
New Mexico
Prime Therapeutics — 46 percent market share
New York
Express Scripts — 35 percent market share
North Carolina
Prime Therapeutics — 58 percent market share
North Dakota
Prime Therapeutics — 57 percent market share
Ohio
Express Scripts — 38 percent market share
Oklahoma
Prime Therapeutics — 57 percent market share
Oregon
Kaiser Pharmacy — 36 percent market share
Pennsylvania
Express Scripts — 47 percent market share
Rhode Island
Prime Therapeutics — 53 percent market share
South Carolina
OptumRx — 83 percent market share
South Dakota
CVS/Caremark — 74 percent market share
Tennessee
Express Scripts — 73 percent market share
Texas
Prime Therapeutics — 34 percent market share
Utah
SelectHealth — 57 percent market share
Vermont
ExpressScripts — 77 percent market share
Virginia
IngenioRx — 33 percent market share
Washington
Kaiser Pharmacy — 33 percent market share
West Virginia
Express Scripts — 75 percent market share
Wisconsin
MedImpact — 24 percent market share
Wyoming
Prime Therapeutics — 54 percent market share