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Medicare Washington Part B

Medicare WA Part B

The provider portal for Medicare Washington Part B is https://www.noridianmedicareportal.com/web/nmp/home

Primary payer ID
02402Compare transaction IDs ↓
Last successful claim statusNo successful response observedObserved across Substrate's claim-status network.
Not enough dataEDI 270/271Browser automation

Is your practice experiencing high volumes of no response claims or denials from Medicare Washington Part B? Try Substrate Denial Intelligence here -->.

Coverage profile

How Substrate can help you with Medicare Washington Part B

Substrate can help practices and billers with the following claims tasks for Medicare Washington Part B.

Eligibility

EDI 270/271

The Substrate Eligibility Agent can verify patient benefits, identify TPAs and carve-outs, and more with Medicare Washington Part B.

Available

Portal claim status

Browser automation

The Substrate Claim Status Agent can check claim status via the payer portal for Medicare Washington Part B.

Available

2027 maternity billing research

When does Medicare Washington Part B change OB/GYN billing?

Federal proposal—not final

Transition begins 2027-01-01. CMS proposes valuing the new CPT codes but is considering 15 Medicare-specific global maternity HCPCS codes GMAT1-GMAT15 instead.

Transition start
2027-01-01
Billing start
Not published
Published
2026-07-16
Current As Of
August 2026

Scope: federal Medicare Part B proposal; MAC instructions pending

Open Medicare Washington Part B in the payer explorer →
View Payer Policy ↗Upstream page ↗

CY 2027 Physician Fee Schedule proposed rule. Verify the payer source before claim submission.

Frequently asked questions

Medicare Washington Part B payer FAQs

What is the payer ID for Medicare Washington Part B?

The primary payer ID for Medicare Washington Part B is 02402. The correct routing ID can differ by clearinghouse and transaction, so compare the 837P, 837I, 835, 270, and 276 entries before submitting.

What are the 837 payer IDs for Medicare Washington Part B?

For professional claims, use 02402 via Stedi. For institutional claims, use 02402 via Stedi.

What is the 835 payer ID for Medicare Washington Part B?

The 835 payer ID for Medicare Washington Part B is 02402 via Stedi.

What is the 270 payer ID for Medicare Washington Part B?

The 270 payer ID for Medicare Washington Part B is 02402 via Stedi.

What state does Medicare Washington Part B operate in?

Medicare Washington Part B operates in WA.

Resource library

Routing reference

Medicare Washington Part B payer IDs and operating states

Use the payer ID listed for the transaction you are submitting. Verify current routing and enrollment requirements with your clearinghouse.

Medicare Washington Part B payer name, operating states, and transaction-specific payer IDs
Payer nameMedicare Washington Part BSource: Substrate payer directory · last refreshed
Operating statesWASource: Substrate payer directory · last refreshed
837P professional claims payer IDStedi02402Enrollment requiredSource: Stedi payer catalog · catalog dated · matched by payer ID
837I institutional claims payer IDStedi02402Source: Stedi payer catalog · catalog dated · matched by payer ID
835 ERA payer IDStedi02402Enrollment requiredSource: Stedi payer catalog · catalog dated · matched by payer ID
270 eligibility payer IDStedi02402Enrollment requiredSource: Stedi payer catalog · catalog dated · matched by payer ID

Routing sources and verification

  • Substrate payer directoryPayer identity, aliases, operating states, and vendor IDs. Last refreshed .Open payer website ↗
  • Stedi payer catalogMatched by payer ID; matched record: Medicare Washington Part B. Source dated .PrimaryPayerId is used as the transaction payer ID when the corresponding Stedi support flag is true.Open current Stedi reference ↗

Clearinghouse payer IDs are transaction-specific and can change. Confirm the current payer list and the member’s ID card before submission.

Payer contact directory

Medicare Washington Part B phone and fax numbers

Use the number associated with your task. These contacts were stated in successful eligibility responses and may apply to specific benefits, products, or departments.

Pharmacy phone
(423) 954-6977MEDCO CONTAINMENT LIFE AND MEDCO CONTAINMENT NY
Medicare Washington Part B payer phone and fax directory
Channel and numberPayer NotesDepartmentSpecialties
phone(423) 954-6977PharmacyBenefit context: Other or Additional Payor
  • MEDCO CONTAINMENT LIFE AND MEDCO CONTAINMENT NY
Pharmacy
phone(800) 448-6262PharmacyBenefit context: Other or Additional Payor
  • HUMANA INSURANCE CO. & HUMANA INSURANCE CO. OF NY
Pharmacy
phone(866) 460-8854PharmacyBenefit context: Other or Additional Payor
  • UNITEDHEALTHCARE INS. CO. & UHC INS. CO. OF NY
Pharmacy
phone(877) 299-9062PharmacyBenefit context: Other or Additional Payor
  • MODA HEALTH PLAN, INC.
Pharmacy
phone(888) 888-9355PharmacyBenefit context: Other or Additional Payor
  • WELLCARE PRESCRIPTION INSURANCE, INC.
Pharmacy

Phone and fax numbers sourced directly from the payer response

Other aliases

Also known as

  • 02402
  • 1462
  • SMWA0
  • WAMCR
  • Noridian (NHS) - Washington
  • MEDICARE B WA
  • MEDICARE NORIDIAN