Check eligibility on Medicare TN Part B. Payer ID SMTN0

Coverage profile

Work Medicare Tennessee Part B across every published route

Use the current payer record to choose the right claim-status, eligibility, portal, phone, or appeals workflow. Substrate only marks routes that are published for this payer.

Eligibility

EDI 270/271

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

Available

Other aliases

Also known as

10312
SMTN0
TNMCR
Medicare Tennessee Part B (Cahaba)
Palmetto GBA (PGBA) - Tennessee

Payer intelligence

Observed adjudication timing

How long completed claims in Substrate’s aggregate network took from payer receipt to the 835 payment date.

Median time to payment

10.8 days

10% of adjudications by: 7 days
90% of adjudications by: 15 days
Applicable state coverage: SC
Current As Of: July 2026

Five-month median trend

Days to 835 payment

View chart data as a table

Medicare Tennessee Part B observed adjudication timing by service month
Service month	Median	10% of adjudications by	90% of adjudications by	Completed claims	Coverage
Apr	No qualified data
May	9 days	7 days	14 days	207	SC
Jun	10 days	7 days	14 days	541	SC
Jul	10.8 days	7 days	15 days	527	SC
Aug	No qualified data

2027 maternity billing research

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

Federal proposal—not final

For CY 2027, CMS proposes maternity CPT valuations and seeks comment on an alternative of 15 HCPCS G-codes preserving the previous MMM global structure for Medicare PFS payment. Neither option is a finalized billing instruction in this source.

Transition start: CY 2027 proposal; operational transition date not established
Billing start: Not established by cited proposal
Published: 2026-07-16
Current As Of: August 2026

Scope: Federal Medicare PFS maternity-payment proposal for medical Part B services; not dental billing or Tennessee-specific MAC instructions.

Open Medicare Tennessee 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 Tennessee Part B payer FAQs

What is the payer ID for Medicare Tennessee Part B?

The primary payer ID for Medicare Tennessee Part B is SMTN0. The correct routing ID can differ by clearinghouse and transaction, so compare the 837P, 837I, 835, 270, and 276 entries before submitting.

What is the 837P payer ID for Medicare Tennessee Part B?

The 837P payer ID for Medicare Tennessee Part B is SMTN0 via Stedi.

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

The 835 payer ID for Medicare Tennessee Part B is SMTN0 via Stedi.

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

The 270 payer ID for Medicare Tennessee Part B is SMTN0 via Stedi.

What state does Medicare Tennessee Part B operate in?

Medicare Tennessee Part B operates in TN.

Routing reference

Medicare Tennessee 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 Tennessee Part B payer name, operating states, and transaction-specific payer IDs
Payer name	Medicare Tennessee Part BSource: Substrate payer directory · data last changed Sep 25, 2026
Operating states	TNSource: Substrate payer directory · data last changed Sep 25, 2026
837P professional claims payer IDStedi	`SMTN0`Enrollment requiredSource: Stedi payer catalog · catalog dated Aug 8, 2026 · matched by payer ID
835 ERA payer IDStedi	`SMTN0`Enrollment requiredSource: Stedi payer catalog · catalog dated Aug 8, 2026 · matched by payer ID
270 eligibility payer IDStedi	`SMTN0`Enrollment requiredSource: Stedi payer catalog · catalog dated Aug 8, 2026 · matched by payer ID

Routing sources and verification

Substrate payer directoryPayer identity, aliases, operating states, and vendor IDs. Data last changed Sep 25, 2026; checked Oct 22, 2026.Open payer website ↗
Stedi payer catalogMatched by payer ID; matched record: Medicare Tennessee Part B. Source dated Aug 8, 2026.PrimaryPayerId is used as the transaction payer ID when the corresponding Stedi support flag is true.Open current Stedi reference ↗
United Clearinghouse payer catalogMatched by payer name; matched record: Medicare Tennessee Part B. The source did not provide a publication date.The attachment supplies payer names and states only; it does not contain transaction-specific payer IDs.Open current United Clearinghouse 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 Tennessee 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.

Eligibility / benefits phone: (800) 299-1407VOLUNTEER STATE HEALTH PLAN

Medicare Tennessee Part B payer phone and fax directory
Channel and number	Payer Notes	Department	Specialties
phone(800) 299-1407	Eligibility / benefits, PharmacyBenefit context: Contact Following Entity for Eligibility or Benefit Information; Benefit context: Other or Additional Payor	VOLUNTEER STATE HEALTH PLAN	Health Benefit Plan Coverage, Pharmacy
phone(800) 448-6262	Eligibility / benefits, PharmacyBenefit context: Contact Following Entity for Eligibility or Benefit Information; Benefit context: Other or Additional Payor	CARITEN HEALTH PLAN INC. HUMANA INSURANCE CO. & HUMANA INSURANCE CO. OF NY HUMANA INSURANCE COMPANY	Health Benefit Plan Coverage, Pharmacy
phone(800) 643-4845	Eligibility / benefits, PharmacyBenefit context: Contact Following Entity for Eligibility or Benefit Information; Benefit context: Other or Additional Payor	UNITEDHEALTHCARE OF WISCONSIN, INC.	Health Benefit Plan Coverage, Pharmacy
phone(800) 690-1606	Eligibility / benefits, PharmacyBenefit context: Contact Following Entity for Eligibility or Benefit Information; Benefit context: Other or Additional Payor	UNITEDHEALTHCARE PLAN OF THE RIVER VALLEY, INC.	Health Benefit Plan Coverage, Pharmacy
phone(800) 776-4466	Eligibility / benefits, PharmacyBenefit context: Contact Following Entity for Eligibility or Benefit Information; Benefit context: Other or Additional Payor	CALIFORNIA PHYSICIANS' SERVICE	Health Benefit Plan Coverage, Pharmacy
phone(800) 831-2583	Eligibility / benefits, PharmacyBenefit context: Contact Following Entity for Eligibility or Benefit Information; Benefit context: Other or Additional Payor	BLUECROSS BLUESHIELD OF TENNESSEE, INC.	Health Benefit Plan Coverage, Pharmacy
phone(888) 888-9355	Eligibility / benefits, PharmacyBenefit context: Contact Following Entity for Eligibility or Benefit Information; Benefit context: Other or Additional Payor	HARMONY HEALTH PLAN, INC. WELLCARE PRESCRIPTION INSURANCE, INC.	Health Benefit Plan Coverage, Pharmacy
phone(202) 942-1270	PharmacyBenefit context: Other or Additional Payor	BLUE CROSS BLUE SHIELD ASSOCIATION	Pharmacy
phone(423) 954-6977	PharmacyBenefit context: Other or Additional Payor	MEDCO CONTAINMENT LIFE AND MEDCO CONTAINMENT NY	Pharmacy
phone(800) 517-6425	PharmacyBenefit context: Other or Additional Payor	BCBS OF ALABAMA & UTIC INSURANCE COMPANY	Pharmacy
phone(866) 235-5660	PharmacyBenefit context: Other or Additional Payor	SILVERSCRIPT INSURANCE COMPANY	Pharmacy
phone(866) 443-1095	PharmacyBenefit context: Other or Additional Payor	OPTUM INSURANCE OF OHIO, INC.	Pharmacy
phone(866) 460-8854	PharmacyBenefit context: Other or Additional Payor	UNITEDHEALTHCARE INS. CO. & UHC INS. CO. OF NY	Pharmacy
phone(866) 529-4917	PharmacyBenefit context: Other or Additional Payor	MEDCO CONTAINMENT LIFE AND MEDCO CONTAINMENT NY	Pharmacy

Phone and fax numbers sourced directly from the payer response