DR. THOMAS BRENT DUFF DO
NPI 1326302449
Hospitalist in Twin Falls, ID
About Dr. Thomas Brent Duff Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. THOMAS BRENT DUFF DO (NPI 1326302449) is an individual hospitalist provider in Twin Falls, Idaho, licensed in Idaho (O-0876) and active in the NPI registry since July 2012. He is enrolled in Medicare PECOS, is affiliated with St Lukes Magic Valley Medical Center, and is a graduate of Other (2012).
NPPES Registry Identity
Specialties & Licenses 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Thomas Brent Duff Do is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Thomas Duff reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Twin Falls, ID 83301
- Reassigned Medicare billing, Idaho enrollment
- Medicare enrollment name: St Lukes Clinic LLC
- 322 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 5
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
St Lukes Magic Valley Medical Center
Acute Care Hospitals · Twin Falls, IDSt Luke's Regional Medical Center
Acute Care Hospitals · Boise, IDNorth Canyon Medical Center
Critical Access Hospitals · Gooding, IDSt Luke's Jerome
Critical Access Hospitals · Jerome, IDSt Luke's Wood River Medical Center
Critical Access Hospitals · Ketchum, IDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 83301 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
TWIN FALLS, ID 83301
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Thomas Duff's NPI number?
The NPI number for Thomas Duff is 1326302449. It was assigned to this individual provider in the NPPES registry on July 3, 2012.
Where is Thomas Duff located?
Thomas Duff practices at 801 Pole Line Rd W, Twin Falls, ID 83301. The listed phone number is (208) 814-4100.
What is Thomas Duff's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Thomas Duff enrolled in Medicare?
Yes. Thomas Duff is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Thomas Duff's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Thomas Duff reassigns Medicare benefits to St Luke's Clinic LLC (Twin Falls, ID). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Thomas Duff's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Thomas Duff accept?
Health plans from Providence Health Plan list Thomas Duff as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Thomas Duff affiliated with any hospitals?
According to CMS data, Thomas Duff is affiliated with St Lukes Magic Valley Medical Center, St Luke's Regional Medical Center, North Canyon Medical Center, St Luke's Jerome and St Luke's Wood River Medical Center.
When was this NPI record last updated?
The NPPES record for Thomas Duff was last updated on May 6, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Thomas Brent Duff, DO · NPI 1326302449
Hospitalist physician in Twin Falls, Idaho. Individual provider, active in the CMS NPPES registry since July 3, 2012.
## Identity
- **NPI:** 1326302449 (Entity type: Individual)
- **Enumerated:** July 3, 2012
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** O-0876 (Idaho)
- **Sole proprietor:** No
## Practice location
- **Address:** 801 POLE LINE RD W, Twin Falls, ID 83301-5810
- **Phone:** (208) 814-4100 · **Fax:** (208) 814-4908
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** St Luke's Clinic LLC (NPI 1790718229, Twin Falls, ID), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2012
## Record status
- **NPPES last updated:** May 6, 2019
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Source: [NPI Profile](https://npiprofile.com/npi/1326302449) · Data from the CMS NPPES public registry.