In Colorado, Blue Cross Blue Shield is Anthem Blue Cross and Blue Shield. The legal entity is Rocky Mountain Hospital and Medical Service, Inc., with HMO products underwritten by HMO Colorado, Inc. (Anthem Colorado Quick Contact Guide). The same company also operates in Nevada, but Nevada rules do not apply in Colorado.
Checked 10/1/26.
Quick facts
| Paper claims (local products and BlueCard) | Anthem, PO Box 60007, Los Angeles, CA 90060. Moved from the Denver box effective 8/1/2024 (Anthem notice) |
|---|---|
| Appeals (local products) | Anthem, Attn: Grievance and Appeals, PO Box 60007, Los Angeles, CA 90060 |
| Provider Services | 800-676-BLUE (2583); also 800-345-4344 on the quick contact guide |
| Behavioral health preapproval | 866-582-2293 |
| Behavioral health manager | Carelon Behavioral Health, 1-800-397-1630 (guide updated 2/7/2023) |
| Peer-to-peer | 888-870-9342 or 800-860-2156 |
| Provider website | anthem.com/co/provider |
| Electronic claims | Availity; confirm the payer ID in the Availity payer list |
| Credentialing | CAQH ProView and Anthem's join page; behavioral health through Carelon |
| State regulator | Colorado Division of Insurance, 303-894-7499 |
Private payer
The quick contact guide labels the Los Angeles box for "Local Products and Exchange" and BlueCard. Filing limits come from your contract and the 2026 Colorado commercial manual.
State law
The Colorado Division of Insurance publishes a resource page for behavioral health providers. It includes the division's clean-claim rule under Regulation 4-2-24 (a penalty when claims are not paid or denied within 90 days) and an email for provider issues, . That is carrier payment timing, not your filing deadline.
Medicare
Anthem Medicare Advantage claims use a different address and are not covered here.
Frequently asked questions
Is Colorado's Blue Anthem?
Yes. In Colorado, Blue Cross Blue Shield is sold as Anthem Blue Cross and Blue Shield, legally Rocky Mountain Hospital and Medical Service, Inc.
Where do Anthem Colorado paper claims go?
Anthem, PO Box 60007, Los Angeles, CA 90060, for local products and BlueCard. It moved from the Denver box effective 8/1/2024.
Who manages behavioral health for Anthem in Colorado?
Carelon Behavioral Health, at 1-800-397-1630. Behavioral health preapproval is 866-582-2293.
How MCM South helps with BCBS Colorado
MCM South bills Blue plans for psychotherapists and psychiatrists in the states we serve. We verify benefits, submit claims electronically, follow up on denials and appeals, and handle credentialing. Get a free quote. If a BCBS Colorado claim is denied or credentialing stalls, we follow up for you.
MCM South currently serves practices in GA, MA, CT, TX, FL, NY, CO, TN, NC and IL, and has worked in all 50 states. If your state is not on that list, ask us. This page is operational guidance for billing, not legal advice. For real financial or legal exposure, talk to your attorney or compliance officer.
Related: Blue Cross by State · How Blue Cross Blue Shield Works · Billing Terms Glossary · CPT and E/M Code Guide · Who We Serve.
This is the MCM South guide to BCBS Colorado for therapists and psychiatrists: where claims go, how appeals work, and what to check first.
Want a billing team that handles this for you? MCM South bills for psychotherapists and psychiatrists. Get a free quote.