WellSense Health Plan Contact Directory
17 contact channels across 3 types (Fax, Mailing Address, Phone) for claims, prior authorization, provider services, and more.
Last verified Aug 25, 2026 from the payer's published directories.
Phone
7 rows
| Contact | Purpose | Line of Business | Hours | Notes | Source |
|---|---|---|---|---|---|
| 888-566-0008 | Claims Status, Eligibility Benefits, Prior Authorization, Provider Services, Appeals Disputes, General | Medicaid | N/A | Dedicated provider line for Massachusetts providers; used for claims status inquiries and eligibility verification. | Used for eligibility verification through automated system. | Provider Service Center for Massachusetts; contact for multiple provider functions. | Dedicated provider line for questions about Provider Administrative Claims Appeals. | Provider Service Center phone listed in MA provider quick reference guide. - Massachusetts providers; automated claim status and eligibility verification system, 24/7; live claims-related questions via provider line | Automated claim status and eligibility verification system, available 24/7 | Massachusetts prior authorization department – medical services, behavioral health services, authorizations and notifications other than pharmacy | Massachusetts Provider Service Center | For questions about a Provider Administrative Claims Appeal; select option 2 to speak to a Provider Services Representative | View source |
| 833-951-1680 | Pharmacy | Medicaid | N/A | Provider services – New Hampshire medical drug authorization questions listed with PA fax numbers for CCUM | View source |
| 877-417-0528 | Pharmacy | Medicaid | N/A | Massachusetts medical drug prior authorization by phone – number listed in provider manual for drug PAs distinct from general pharmacy line | View source |
| 800-900-1451 | Prior Authorization | Medicaid | N/A | Massachusetts non‑participating providers – to obtain prior authorization when using the Universal Massachusetts Prior Authorization Form | View source |
| 866-716-8338 | Prior Authorization | Medicaid | N/A | New Hampshire – provider services for medical drug prior authorization questions | View source |
| 877-512-5985 | Prior Authorization, Pharmacy | Medicaid | N/A | Massachusetts and New Hampshire – provider services for medical drug prior authorization questions | Provider services – Massachusetts medical drug authorization questions listed with PA fax numbers for CCUM | View source |
| 877-957-1300 | Prior Authorization, Provider Services | Medicaid | N/A | New Hampshire Provider Services line for claims submission questions and other provider services. - New Hampshire prior authorization department – medical services, authorizations and notifications other than pharmacy | New Hampshire Provider Service Center; contact for questions about submitting claims and other provider services | View source |
Fax
8 rows
| Contact | Purpose | Line of Business | Hours | Notes | Source |
|---|---|---|---|---|---|
| 857-264-2670 | Behavioral Health | Medicaid | N/A | New Hampshire behavioral health products – prior authorization form for out‑of‑network provider/facility | View source |
| 857-264-2673 | Behavioral Health | Medicaid | N/A | Massachusetts behavioral health products – prior authorization form for out‑of‑network provider/facility | View source |
| 866-536-7185 | Pharmacy | Medicaid | N/A | Massachusetts provider‑administered drugs that use WellSense drug‑specific PA forms – submit PA requests to WellSense via fax | View source |
| 617-951-3463 | Prior Authorization | Medicaid | N/A | New Hampshire – admission notifications or clinical documentation | View source |
| 617-951-3464 | Prior Authorization | Medicaid | N/A | New Hampshire – prior authorization requests (temporary fax number noted for NH provider resources) | View source |
| 866-813-8607 | Prior Authorization | Medicaid | N/A | New Hampshire prior authorization – emergent admissions and observation notifications | View source |
| 877-552-6551 | Prior Authorization | Medicaid | N/A | Massachusetts medical prior authorization requests (non‑pharmacy) | View source |
| 833-812-0687 | Prior Authorization, Pharmacy | Medicaid | N/A | Massachusetts and New Hampshire – eviCore prior authorization requests for delegated services (see WellSense PA matrix for which services are delegated) | Medical drug codes requiring authorization that are delegated to CCUM – fax prior authorization requests to CCUM | View source |
Mailing Addresses
2 rows
| Contact | Purpose | Line of Business | Hours | Notes | Source |
|---|---|---|---|---|---|
| WellSense Health Plan, Attn: Provider Administrative Claims Appeals, PO Box 55282, Boston, MA 02205 | Appeals Disputes, Claims Submission | Medicaid | N/A | Mailing address for provider administrative claims appeals for Massachusetts WellSense providers. | Paper claim submissions mailing address for Massachusetts WellSense providers. - Massachusetts Provider Administrative Claims Appeals; send Claim Review Form, appeal narrative, and documentation | Massachusetts paper claim submissions; CMS-1500/UB-04 paper claims | View source |
| WellSense Health Plan, Claims Department, PO Box 55049, Boston, MA 02205-5049 | Claims Submission | Medicaid | N/A | Paper claims mailing address for WellSense Health Plan (New Hampshire). | Address specified for submitting new claims within contract time frame for New Hampshire WellSense providers. - New Hampshire paper claims submissions; CMS-1500 or UB-04 paper claims | New Hampshire new claim submissions within contractual time frame | View source |
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Sources
Where this data comes from
Every contact in this directory comes from documents the payers publish themselves, such as provider manuals, quick reference guides, and contact pages, and each payer page shows when its contacts were last verified. You can see all of our data sources and how we process them.
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