Anthem Blue Cross and Blue Shield of New Hampshire: Billing Guide
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In New Hampshire, Blue Cross Blue Shield coverage is sold as Anthem Blue Cross and Blue Shield. Anthem is part of Elevance Health and calls its state companies "independent licensees of the Blue Cross and Blue Shield Association" (Anthem Ohio provider page). New Hampshire rules apply to New Hampshire only.
Checked 10/1/26.
Quick facts
For every Anthem state: Provider Services is 800-676-BLUE (2583). Claims go through the Availity EDI Gateway. Anthem's own EDI pages do not list payer IDs; they send you to the Availity payer list (EDI page). Credentialing is CAQH ProView plus Anthem's online enrollment, with as the contact. Availity Client Services is 800-282-4548. Anthem's Quick Contact Guides are 2025 editions; open the state PDF before you copy an address.
| Legal entity | Anthem Health Plans of New Hampshire, Inc.; HMO: Matthew Thornton Health Plan, Inc. |
|---|---|
| Paper claims (commercial professional) | Anthem, PO Box 533, North Haven, CT 06473 |
| Appeals | Claim payment appeals: PO Box 518, North Haven, CT 06473-0518. Reconsiderations and disputes: PO Box 533, North Haven, CT 06473 |
| Quick Contact Guide | Anthem New Hampshire guide |
| Local Plan Provider Call Center | 800-332-6558 |
| Timely filing | 90 days from the date of service for professional commercial claims received on or after 10/1/2019, per Anthem notice (New Hampshire notice). Your contract controls |
| State regulator | New Hampshire Insurance Department |
Private payer: behavioral health
Anthem's commercial behavioral health pages say behavioral health benefits are integrated into Anthem medical plans (Anthem New Hampshire). Carelon Behavioral Health publishes provider guides for Anthem commercial plans in some states. Ask Provider Services which route applies to your contract.
Medicaid
Anthem's Medicaid line runs under a different entity with separate payer IDs and boxes.
Frequently asked questions
Where do I send New Hampshire paper claims to Anthem?
Commercial professional claims go to Anthem, PO Box 533, North Haven, CT 06473. Electronic claims through Availity are faster.
How long do I have to file an Anthem New Hampshire claim?
Anthem announced a 90-day limit for professional commercial claims received on or after 10/1/2019. Your contract controls.
Where is the Anthem New Hampshire payer ID?
Anthem's EDI pages do not list payer IDs. They send you to the Availity payer list, so check it there before you submit.
How MCM South helps
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 an Anthem New Hampshire 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 Anthem New Hampshire 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.