Sean Tan Nguyen, MD
Emergency Medicine Physician · Seattle, WA
Sean Tan Nguyen, MD is an emergency medicine physician with a practice address in Seattle, Washington, and NPI 1265798391, issued on Apr 3, 2012. Check the license (Washington MD60289479, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Sean Tan Nguyen
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- MD60289479 WA
Self-reported in NPPES; status is on the state search - Practice location
- 325 Ninth Ave., Seattle, WA 98104
- Phone
- (206) 744-2556
- Enumerated
- Apr 3, 2012
- Record last updated
- Dec 21, 2016 (not updated in 10 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20160722000204); accepts Medicare assignment
- Medical or professional school
- Saint Louis University School Of Medicine, 2012
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,459 in Washington → Look up another NPI →
Also registered at 325 Ninth Ave.
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Maria Lee, LICSWClinical Social Worker1922420660
- Lucas Ruiter Kanamori, MDStudent in an Organized Health Care Education/Training Program1194527101
Verify Sean Tan Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD60289479Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.2 times the Medicare Part D claims of the average emergency medicine physician in 2024
501 Medicare Part D claims for 305 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 106 claims were for opioids.
Most prescribed
- Ondansetron Odt56 claims
- Oxycodone-Acetaminophen41 claims
- Prednisone30 claims
- Cephalexin28 claims
- Oxycodone Hcl26 claims
- Naproxen23 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 practice group's MIPS final score for 2023 (Medicare payment program): 86.3 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Associated Emergency Room Physicians Inc PSRenton, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sean Tan Nguyen among 1,459 emergency medicine physician records in Washington
Sean Tan Nguyen, MD is one of 1,459 emergency medicine physician records with a practice address in Washington. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 69% of them.
- NPI issued2012 · 69% of these records are older, 28% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2012 · median 2010 among the 851 with a school on file
- Record last updated2016 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medicine Physician providers in Washington
There are 1,459 emergency medicine physician records in Washington.
All 1,459 in Washington → Every provider in Seattle → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Brandon Backlund, M.D.Seattle, WA 981041902902984
- Elizabeth Borock, M.D.Seattle, WA 981041841283512
- Christopher BureshSeattle, WA 981041972578417
- David Carlbom, MDSeattle, WA 981041003844713
- Douglas Franzen, MDSeattle, WA 981041386671402
- Fiona Gallahue, MDSeattle, WA 981041578503561
- Jeremy Hess, MDSeattle, WA 981041831134154
- William Hurley, MDSeattle, WA 981041710923545
Common questions
What is Sean Tan Nguyen, MD's NPI number?
Sean Tan Nguyen, MD's National Provider Identifier (NPI) is 1265798391, issued on Apr 3, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Sean Tan Nguyen, MD located?
The NPPES record lists a practice address at 325 Ninth Ave., Seattle, WA, 98104. Phone: (206) 744-2556. Providers update this record themselves, so call before visiting.
How can I verify Sean Tan Nguyen, MD's license?
NPPES lists Washington license number MD60289479, 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 Sean Tan Nguyen, MD prescribe under Medicare Part D?
In 2024, Sean Tan Nguyen, MD had 501 Medicare Part D claims for 305 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is Sean Tan Nguyen, MD's MIPS final score?
The 2023 MIPS final score is 86.3 of 100, reported for the practice group. 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.