Tiffany Tuanh Nguyen, MD
Endocrinology, Diabetes & Metabolism Physician · Seattle, WA
Tiffany Tuanh Nguyen, MD is an endocrinology, diabetes & metabolism physician with a practice address in Seattle, Washington, and NPI 1982047999, issued on Apr 9, 2013. Check the license (Washington MD60850585, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Tiffany Tuanh Nguyen
- Credential
- MD
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License numbers
- MD60850585 WA
60850585 WA
Self-reported in NPPES; status is on the state search - Practice location
- 1959 NE Pacific St, Seattle, WA 98195
- Phone
- (206) 598-6288
- Enumerated
- Apr 9, 2013
- Record last updated
- Jul 1, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicaid ID
- 1982047999 WA
- Medicare enrollment
- Enrolled (PECOS I20200708000002); accepts Medicare assignment
- Medical or professional school
- University Of California, Davis School Of Medicine, 2015
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 224 in Washington → Look up another NPI →
Also registered at 1959 NE Pacific St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Tiffany Tuanh Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD60850585Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
49% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
1,335 Medicare Part D claims for 167 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 42% of claims.
Most prescribed
- Levothyroxine Sodium119 claims
- Alendronate Sodium92 claims
- Trulicity61 claims
- Atorvastatin Calcium58 claims
- Jardiance58 claims
- Metformin Hcl Er52 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).
Industry payments in 2024: $190.80
2 payments; by number, the most common kind was food and beverage; the largest payer was Inari Medical, Inc. The 5,661 providers of this specialty with any payment received $5,742.15 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
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).
Tiffany Tuanh Nguyen among 224 endocrinology, diabetes & metabolism physician records in Washington
Tiffany Tuanh Nguyen, MD is one of 224 endocrinology, diabetes & metabolism 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 2013, is newer than 75% of them.
- NPI issued2013 · 75% of these records are older, 21% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2015 · median 2006 among the 140 with a school on file
- Record last updated2020 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in Washington
There are 224 endocrinology, diabetes & metabolism physician records in Washington.
All 224 in Washington → Every provider in Seattle → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- William Bremner, MDSeattle, WA 981951518042316
- Peter CapellSeattle, WA 981951245315043
- Alan ChaitSeattle, WA 981951932299898
- Nicole Ehrhardt, M.D.Seattle, WA 981951558467506
- Richard FailorSeattle, WA 981951831289784
- Karen Foster-SchubertSeattle, WA 981951124118054
- William Hagopian, MDSeattle, WA 981951841380706
- Jay HeineckeSeattle, WA 981951477643328
Common questions
What is Tiffany Tuanh Nguyen, MD's NPI number?
Tiffany Tuanh Nguyen, MD's National Provider Identifier (NPI) is 1982047999, issued on Apr 9, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Tiffany Tuanh Nguyen, MD located?
The NPPES record lists a practice address at 1959 NE Pacific St, Seattle, WA, 98195. Phone: (206) 598-6288. Providers update this record themselves, so call before visiting.
How can I verify Tiffany Tuanh Nguyen, MD's license?
NPPES lists Washington license number MD60850585, 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 Tiffany Tuanh Nguyen, MD prescribe under Medicare Part D?
In 2024, Tiffany Tuanh Nguyen, MD had 1,335 Medicare Part D claims for 167 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. Part D covers Medicare prescriptions only.
What is Tiffany Tuanh Nguyen, MD'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.