# Medicare Massachusetts Part A Payer ID

- **Payer ID:** 14211
- **Other payer IDs:** 12M14, IMMA0, JIMMA0
- **Coverage types:** Medical
- **Programs:** Medicare
- **Where it operates:** Massachusetts
- **Payer website:** https://www.cms.gov

## Other names

- National Government Services (NGS) - Massachusetts

## What You Can Check With Medicare Massachusetts Part A

- Eligibility and benefits for any service type Medicare Massachusetts Part A returns
- Instant results, 24/7, with no phone calls or portals

What a check returns is up to the payer: some return more detail than others.

Payer details updated Oct 18, 2026. Payers change IDs and plan names; when in doubt, use the ID on the member's card.

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Canonical: https://www.verifytx.com/payers/medicare-massachusetts-part-a/