Taxonomy requirements for billing and rendering providers
Beginning Sept. 1, 2026, all behavioral health claims submitted without required taxonomy codes will be denied. Please refer to the Taxonomy Code Guide for more details.
Behavioral health
We recognize and deeply appreciate the essential role behavioral health providers play in the lives of those we serve. Below you will find tools and resources for working with WellSense and our members.
Where to submit claims
| Member's plan type | Date of service | Send claims to |
| New Hampshire Medicaid | On or before Nov. 30, 2025 | Carelon |
| On or after Dec. 1, 2025 | WellSense | |
| All other products in Massachusetts and New Hampshire | On or before Dec. 31, 2025 | Carelon |
| On or after Jan. 1, 2026 | WellSense |
Does not apply to inpatient claims.
Policies
Access behavioral health policies administered directly by WellSense on PolicyTech. For help, review our user guide.
Prior authorization
Provider portal
Provider toolkit
Training
News and updates
Documents and forms
Get in touch
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