Medical
Keystone First Payer ID
Payer ID23284
Payer details
- Payer ID
- 23284
- Other payer IDs
- 6531, 8475, A3284, KEYST, KMHPLN, ZLNUO
- Coverage types
- Medical
- Programs
- Medicaid
- Payer website
- keystonefirstpa.com
Other names
- Keystone Family Health Plan
- Keystone First Aligned
- Keystone First TPA
- Vista Health Plan
Where it operates
Pennsylvania
What You Can Check With Keystone First
- Eligibility and benefits for any service type Keystone First returns
- Instant results, 24/7, with no phone calls or portals
- Claim status after you bill
What a check returns is up to the payer: some return more detail than others.
Service Type Code LookupPayer 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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