> ## Documentation Index
> Fetch the complete documentation index at: https://docs.thrizer.com/llms.txt
> Use this file to discover all available pages before exploring further.
# Available Blue Plan registration guides by location
> Use your practice or claim-service location to find an available out-of-network Blue Plan registration guide.
## 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](#states-a-h) · [I–M](#states-i-m) · [N–S](#states-n-s) · [T–W](#states-t-w)
## A–H
* **Alabama (AL)** — [BCBS of Alabama](/help/claims/bcbs-al-provider-registration)
* **Alaska (AK)** — [Premera](/help/claims/bcbs-premera-provider-registration)
* **Arizona (AZ)** — [AZ Blue](/help/claims/bcbs-az-provider-registration)
* **Arkansas (AR)** — [Arkansas Blue Cross](/help/claims/bcbs-ar-provider-registration)
* **California (CA)** — [Blue Shield of California](/help/claims/bcbs-blue-shield-ca-provider-registration) **and** [Anthem Blue Cross California](/help/claims/bcbs-anthem-ca-provider-registration); complete both registrations separately.
* **Colorado (CO)** — [Anthem](/help/claims/bcbs-anthem-provider-registration)
* **Connecticut (CT)** — [Anthem](/help/claims/bcbs-anthem-provider-registration)
* **Delaware (DE)** — [Highmark](/help/claims/bcbs-highmark-provider-registration)
* **District of Columbia (DC)** — [CareFirst](/help/claims/bcbs-carefirst-provider-registration); confirm the exact commercial company and whether separate MD/DC records are needed.
* **Florida (FL)** — [Florida Blue](/help/claims/bcbs-fl-provider-registration)
* **Georgia (GA)** — [Anthem](/help/claims/bcbs-anthem-provider-registration)
* **Hawaii (HI)** — [HMSA](/help/claims/bcbs-hmsa-provider-registration)
## I–M
* **Idaho (ID)** — [Blue Cross of Idaho](/help/claims/bcbs-id-provider-registration) **and** [Regence BlueShield of Idaho](/help/claims/bcbs-regence-provider-registration) are distinct companies; plan to register with both separately.
* **Illinois (IL)** — [BCBS Illinois](/help/claims/bcbs-hcsc-provider-registration)
* **Indiana (IN)** — [Anthem](/help/claims/bcbs-anthem-provider-registration)
* **Iowa (IA)** — [Wellmark](/help/claims/bcbs-wellmark-provider-registration)
* **Kansas (KS)** — [BCBS of Kansas](/help/claims/bcbs-ks-provider-registration) for counties other than Johnson and Wyandotte; [Blue KC](/help/claims/bcbs-bluekc-provider-registration) for Johnson and Wyandotte counties. These are separate companies.
* **Kentucky (KY)** — [Anthem](/help/claims/bcbs-anthem-provider-registration)
* **Louisiana (LA)** — [Louisiana Blue](/help/claims/bcbs-la-provider-registration)
* **Maine (ME)** — [Anthem](/help/claims/bcbs-anthem-provider-registration)
* **Maryland (MD)** — [CareFirst](/help/claims/bcbs-carefirst-provider-registration); confirm the exact commercial company and whether separate MD/DC records are needed.
* **Massachusetts (MA)** — [BCBS Massachusetts](/help/claims/bcbs-ma-provider-registration)
* **Michigan (MI)** — [BCBS of Michigan](/help/claims/bcbs-mi-provider-registration)
* **Minnesota (MN)** — [Blue Cross Minnesota](/help/claims/bcbs-mn-provider-registration)
* **Mississippi (MS)** — [BCBS Mississippi](/help/claims/bcbs-ms-provider-registration)
* **Missouri (MO)** — [Blue KC](/help/claims/bcbs-bluekc-provider-registration) for the 30 counties listed in its guide; [Anthem](/help/claims/bcbs-anthem-provider-registration) outside that area. Check your actual service county before registering.
* **Montana (MT)** — [BCBS Montana](/help/claims/bcbs-hcsc-provider-registration)
## N–S
* **Nebraska (NE)** — [BCBS Nebraska](/help/claims/bcbs-ne-provider-registration)
* **Nevada (NV)** — [Anthem](/help/claims/bcbs-anthem-provider-registration)
* **New Hampshire (NH)** — [Anthem](/help/claims/bcbs-anthem-provider-registration)
* **New Jersey (NJ)** — [Horizon BCBSNJ](/help/claims/bcbs-horizon-provider-registration)
* **New Mexico (NM)** — [BCBS New Mexico](/help/claims/bcbs-hcsc-provider-registration)
* **New York (NY)** — Check the county lists in [Anthem's commercial provider manual, page 59](https://www.anthembluecross.com/content/dam/digital/docs/anthembluecross/provider/commercial/manuals/PM_NY_000016.pdf#page=59) and [Highmark's service-area map](https://providers.highmark.com/content/dam/highmark/en/providerresourcecenter/pdfs/education-resources/highmark-provider-manual/provider-manual-chapter-1/hpm-service-area-map.pdf). Use the [Anthem guide](/help/claims/bcbs-anthem-provider-registration) and/or [Highmark guide](/help/claims/bcbs-highmark-provider-registration) 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](/help/claims/bcbs-excellus-provider-registration) 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](#no-matching-guide).
* **North Carolina (NC)** — [Blue Cross NC](/help/claims/bcbs-nc-provider-registration)
* **North Dakota (ND)** — [BCBS North Dakota](/help/claims/bcbs-nd-provider-registration)
* **Ohio (OH)** — [Anthem](/help/claims/bcbs-anthem-provider-registration)
* **Oklahoma (OK)** — [BCBS Oklahoma](/help/claims/bcbs-hcsc-provider-registration)
* **Oregon (OR)** — [Regence](/help/claims/bcbs-regence-provider-registration)
* **Pennsylvania (PA)** — [Highmark](/help/claims/bcbs-highmark-provider-registration) in its [Pennsylvania service areas](https://providers.highmark.com/content/dam/highmark/en/providerresourcecenter/pdfs/education-resources/highmark-provider-manual/provider-manual-chapter-1/hpm-service-area-map.pdf). In Bucks, Chester, Delaware, Montgomery, and Philadelphia counties, [Independence Blue Cross](/help/claims/bcbs-ibx-provider-registration) also serves the area; plan to register with both separately. [Capital Blue Cross](/help/claims/bcbs-capital-provider-registration) 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](/help/claims/bcbs-triple-s-provider-registration); separate from Plan Vital and Medicare Advantage.
* **Rhode Island (RI)** — [BCBS Rhode Island](/help/claims/bcbs-ri-provider-registration)
* **South Carolina (SC)** — [BlueCross South Carolina](/help/claims/bcbs-sc-provider-registration)
* **South Dakota (SD)** — [Wellmark](/help/claims/bcbs-wellmark-provider-registration)
## T–W
* **Tennessee (TN)** — [BCBS Tennessee](/help/claims/bcbs-tn-provider-registration)
* **Texas (TX)** — [BCBS Texas](/help/claims/bcbs-hcsc-provider-registration)
* **Utah (UT)** — [Regence](/help/claims/bcbs-regence-provider-registration)
* **Vermont (VT)** — [Blue Cross of Vermont](/help/claims/bcbs-vt-provider-registration)
* **Virginia (VA)** — [Anthem](/help/claims/bcbs-anthem-provider-registration) in its service area. Anthem [excludes the City of Fairfax, the Town of Vienna, and the area east of State Route 123](https://www.anthem.com/about). If your location is in an excluded area, use the [no matching guide steps](#no-matching-guide) to identify the local company.
* **Washington (WA)** — [Choose the Blue Plan guides for your county](/help/claims/bcbs-wa-provider-registration); Premera and Regence service areas vary by county.
* **West Virginia (WV)** — [Highmark](/help/claims/bcbs-highmark-provider-registration)
* **Wisconsin (WI)** — [Anthem](/help/claims/bcbs-anthem-provider-registration)
* **Wyoming (WY)** — [BCBS Wyoming](/help/claims/bcbs-wy-provider-registration)
## No matching guide?
Use the [BCBSA company directory](https://www.bcbs.com/about-us/blue-cross-blue-shield-system/state-health-plan-companies) to identify Blue company names in your state. Its ZIP finder is for member resources, not provider-registration requirements. Ask BlueCard provider services or the companies' provider teams which Local / Host Plans serve your practice or claim-service location, especially if the state is absent above or a service-area boundary is unclear.
For each required company without a Thrizer guide, sign in to [Availity Essentials](https://availity.com), open **Payer Spaces**, and look for its non-participating-provider registration process. If you cannot find one, ask the payer how to create a first-time nonparticipating practice record under your TIN and NPIs.
**For an Availity-based route, complete both steps:** register for Availity Essentials access if your practice does not already have it, **and** separately register the practice and applicable clinicians with each required Local / Host Blue Plan. An Availity account or Payer Space access alone does not complete the plan's provider registration. If the plan directs you to a form or another route, follow its instructions instead.
After each required plan confirms that your practice record and clinician affiliations are active, [notify Thrizer and review the next steps](/help/claims/provider-registration#registration-confirmed-next-steps).
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