Thomas Henry Gallagher
Internal Medicine Physician · Seattle, WA
Thomas Henry Gallagher is an internal medicine physician with a practice address in Seattle, Washington, and NPI 1164508974, issued on Oct 27, 2006. Check the license (Washington MD00041054, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Thomas Henry Gallagher
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD00041054 WA
Self-reported in NPPES; status is on the state search - Practice location
- Uwmc-Roosevelt, Seattle, WA 98105
- Phone
- (206) 598-8750
- Enumerated
- Oct 27, 2006
- Record last updated
- Feb 10, 2012 (not updated in 14 years: call before relying on the address or phone)
- Medicaid ID
- 1164508974 WA
- Medicare enrollment
- Enrolled (PECOS I20100416000090); accepts Medicare assignment
- Medical or professional school
- Harvard Medical School, 1990
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 3,079 in Washington → Look up another NPI →
Also registered at Uwmc-Roosevelt
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Thomas Henry Gallagher in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD00041054Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
84% fewer Medicare Part D claims than the average internal medicine physician in 2024
519 Medicare Part D claims for 54 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 14 claims were for opioids.
Most prescribed
- Atorvastatin Calcium66 claims
- Simvastatin38 claims
- Lisinopril33 claims
- Citalopram Hbr20 claims
- Diazepam20 claims
- Amlodipine Besylate18 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 93.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- The Association OF University PhysiciansSeattle, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Thomas Henry Gallagher among 3,079 internal medicine physician records in Washington
Thomas Henry Gallagher is one of 3,079 internal medicine physician records with a practice address in Washington. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 55% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1990 · median 2006 among the 1,852 with a school on file
- Record last updated2012 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
821 internal medicine physician records list a practice address in Seattle
They are 821 of the 41,956 NPPES records with a practice address in Seattle, and 3,079 internal medicine physician records in Washington.
All 3,079 in Washington → Every provider in Seattle → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Emily Cooper, MDSeattle, WA 981051780614370
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- David Dugdale, M.D.Seattle, WA 981051265529895
- Anne EackerSeattle, WA 981051720164577
- Jaime Friedman, M.D.Seattle, WA 981051619971512
- Vara Kraft, M.D.Seattle, WA 981051174509293
- Frank Mitchell, MDSeattle, WA 981051891804977
- Joan Olson, MDSeattle, WA 981051629070123
Common questions
What is Thomas Henry Gallagher's NPI number?
Thomas Henry Gallagher's National Provider Identifier (NPI) is 1164508974, issued on Oct 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Thomas Henry Gallagher located?
The NPPES record lists a practice address at Uwmc-Roosevelt, Seattle, WA, 98105. Phone: (206) 598-8750. Providers update this record themselves, so call before visiting.
How can I verify Thomas Henry Gallagher's license?
NPPES lists Washington license number MD00041054, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Thomas Henry Gallagher prescribe under Medicare Part D?
In 2024, Thomas Henry Gallagher had 519 Medicare Part D claims for 54 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Thomas Henry Gallagher's MIPS final score?
The 2023 MIPS final score is 93.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.