Start with your service location
For BCBS claims through Thrizer, use the practice or claim-service location used for billing, not your client’s home address or the plan on their insurance card. If telehealth or multiple billing locations make the location unclear, ask the relevant Blue Plans’ provider teams before submitting registration information. This is an index of available Thrizer registration guides, not a complete list of Blue companies. A guide listed for a state may apply only in part of that state. Follow the location notes below and the service-area instructions in the guide. When two companies serve your actual location, plan to register with both separately. Jump to A–H · I–M · N–S · T–WA–H
- Alabama (AL) — BCBS of Alabama
- Alaska (AK) — Premera
- Arizona (AZ) — AZ Blue
- Arkansas (AR) — Arkansas Blue Cross
- California (CA) — Blue Shield of California and Anthem Blue Cross California; complete both registrations separately.
- Colorado (CO) — Anthem
- Connecticut (CT) — Anthem
- Delaware (DE) — Highmark
- District of Columbia (DC) — CareFirst; confirm the exact commercial company and whether separate MD/DC records are needed.
- Florida (FL) — Florida Blue
- Georgia (GA) — Anthem
- Hawaii (HI) — HMSA
I–M
- Idaho (ID) — Blue Cross of Idaho and Regence BlueShield of Idaho are distinct companies; plan to register with both separately.
- Illinois (IL) — BCBS Illinois
- Indiana (IN) — Anthem
- Iowa (IA) — Wellmark
- Kansas (KS) — BCBS of Kansas for counties other than Johnson and Wyandotte; Blue KC for Johnson and Wyandotte counties. These are separate companies.
- Kentucky (KY) — Anthem
- Louisiana (LA) — Louisiana Blue
- Maine (ME) — Anthem
- Maryland (MD) — CareFirst; confirm the exact commercial company and whether separate MD/DC records are needed.
- Massachusetts (MA) — BCBS Massachusetts
- Michigan (MI) — BCBS of Michigan
- Minnesota (MN) — Blue Cross Minnesota
- Mississippi (MS) — BCBS Mississippi
- Missouri (MO) — Blue KC for the 30 counties listed in its guide; Anthem outside that area. Check your actual service county before registering.
- Montana (MT) — BCBS Montana
N–S
- Nebraska (NE) — BCBS Nebraska
- Nevada (NV) — Anthem
- New Hampshire (NH) — Anthem
- New Jersey (NJ) — Horizon BCBSNJ
- New Mexico (NM) — BCBS New Mexico
- New York (NY) — Check the county lists in Anthem’s commercial provider manual, page 59 and Highmark’s service-area map. Use the Anthem guide and/or Highmark guide for the companies serving your county. Their northeastern service areas overlap; where both serve your location, plan to register with each separately. For locations served by Excellus, use the Excellus guide and confirm your service area with its provider team. These guides do not cover every New York Blue company; otherwise use the no matching guide steps.
- North Carolina (NC) — Blue Cross NC
- North Dakota (ND) — BCBS North Dakota
- Ohio (OH) — Anthem
- Oklahoma (OK) — BCBS Oklahoma
- Oregon (OR) — Regence
- Pennsylvania (PA) — Highmark in its Pennsylvania service areas. In Bucks, Chester, Delaware, Montgomery, and Philadelphia counties, Independence Blue Cross also serves the area; plan to register with both separately. Capital Blue Cross serves another Pennsylvania market; confirm whether it also serves your location. Register separately with every company confirmed for that location.
- Puerto Rico (PR) — Triple-S Salud commercial; separate from Plan Vital and Medicare Advantage.
- Rhode Island (RI) — BCBS Rhode Island
- South Carolina (SC) — BlueCross South Carolina
- South Dakota (SD) — Wellmark
T–W
- Tennessee (TN) — BCBS Tennessee
- Texas (TX) — BCBS Texas
- Utah (UT) — Regence
- Vermont (VT) — Blue Cross of Vermont
- Virginia (VA) — Anthem in its service area. Anthem excludes the City of Fairfax, the Town of Vienna, and the area east of State Route 123. If your location is in an excluded area, use the no matching guide steps to identify the local company.
- Washington (WA) — Choose the Blue Plan guides for your county; Premera and Regence service areas vary by county.
- West Virginia (WV) — Highmark
- Wisconsin (WI) — Anthem
- Wyoming (WY) — BCBS Wyoming