THOMAS HENRY GALLAGHER
NPI 1164508974
Internal Medicine in Seattle, WA
About Thomas Henry Gallagher NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
THOMAS HENRY GALLAGHER (NPI 1164508974) is an individual internal medicine provider in Seattle, Washington, licensed in Washington (MD00041054) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS, is affiliated with University Of Washington Medical Ctr, and is a graduate of Harvard Medical School (1990).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 5
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
Thomas Henry Gallagher 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 Reassignments
2Medicare enrollment records show Thomas Gallagher reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Seattle, WA 98195
- Reassigned Medicare billing, Washington enrollment
- 274 clinicians in this Medicare group
Seattle, WA 98104
- Reassigned Medicare billing, Washington enrollment
- 4,364 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 3
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
University Of Washington Medical Ctr
Acute Care Hospitals · Seattle, WAHarborview Medical Center
Acute Care Hospitals · Seattle, WAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 98105 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.
SEATTLE, WA 98105
SEATTLE, WA 98105
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 Gallagher's NPI number?
The NPI number for Thomas Gallagher is 1164508974. It was assigned to this individual provider in the NPPES registry on October 27, 2006.
Where is Thomas Gallagher located?
Thomas Gallagher practices at Uwmc-Roosevelt 4245 Roosevelt Way NE, Seattle, WA 98105. The listed phone number is (206) 598-8750.
What is Thomas Gallagher's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Thomas Gallagher enrolled in Medicare?
Yes. Thomas Gallagher 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 organizations bill Medicare for Thomas Gallagher's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Thomas Gallagher reassigns Medicare benefits to 2 organizations: University Of Washington (Seattle, WA) and The Association Of University Physicians (Seattle, WA). Each 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 Gallagher's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Thomas Gallagher accept?
Health plans from Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Thomas Gallagher 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 Gallagher affiliated with any hospitals?
According to CMS data, Thomas Gallagher is affiliated with University Of Washington Medical Ctr and Harborview Medical Center.
When was this NPI record last updated?
The NPPES record for Thomas Gallagher was last updated on February 10, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.
# Thomas Henry Gallagher · NPI 1164508974
Internal Medicine physician in Seattle, Washington. Individual provider, active in the CMS NPPES registry since October 27, 2006.
## Identity
- **NPI:** 1164508974 (Entity type: Individual)
- **Enumerated:** October 27, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** MD00041054 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** UWMC-ROOSEVELT, 4245 ROOSEVELT WAY NE, Seattle, WA 98105-6920
- **Phone:** (206) 598-8750
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): University Of Washington (NPI 1326002049, Seattle, WA); The Association Of University Physicians (NPI 1023041159, Seattle, WA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Harvard Medical School, class of 1990
## Record status
- **NPPES last updated:** February 10, 2012
- **Other identifiers:** Medicare UPIN F75317; Medicare PIN AB28595 (WA); Other 296000; and 2 more
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Source: [NPI Profile](https://npiprofile.com/npi/1164508974) · Data from the CMS NPPES public registry.