Tuyen Thanh Nguyen, M.D.
Internal Medicine Physician · Louisville, KY
Tuyen Thanh Nguyen, M.D. is an internal medicine physician with a practice address in Louisville, Kentucky, and NPI 1073578985, issued on Apr 20, 2006. Check the license (Kentucky 38166, as entered in NPPES) on the Kentucky Board of Medical Licensure; the Medicare figures below come from public CMS files.
- Name
- Tuyen Thanh Nguyen
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 38166 KY
Self-reported in NPPES; status is on the state search - Practice location
- 1900 Bluegrass Ave Ste 300, Louisville, KY 40215
- Phone
- (502) 361-1222
- Enumerated
- Apr 20, 2006
- Record last updated
- Apr 17, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (502) 368-1258
- Medicaid ID
- 64072879 KY
- Medicare enrollment
- Enrolled (PECOS I20031217000032); accepts Medicare assignment
- Medical or professional school
- University Of Louisville School Of Medicine, 2000
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,526 in Kentucky → Look up another NPI →
Also registered at 1900 Bluegrass Ave Ste 300
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Voltaire Briones, M.D.Internal Medicine Physician1952341588
- James Fitzpatrick, M.D.Internal Medicine Physician1710924725
- Kathleen Guest, APRNFamily Nurse Practitioner1932650124
- Carolyn Mallillin, MDFamily Medicine Physician1194719971
- Lady Christine Ong Sio, MDInterventional Pain Medicine Physician1043716772
- Carrie Thonen, APRNWomen's Health Nurse Practitioner1730299504
Verify Tuyen Thanh Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersKentucky Board of Medical Licensure
Search for license 38166Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4.5 times the Medicare Part D claims of the average internal medicine physician in 2024
14,198 Medicare Part D claims for 724 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 517 claims were for opioids.
Most prescribed
- Atorvastatin Calcium1,148 claims
- Amlodipine Besylate726 claims
- Lisinopril579 claims
- Omeprazole447 claims
- Levothyroxine Sodium439 claims
- Losartan Potassium389 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.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,085.34
70 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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
- University OF Louisville Physicians IncLouisville, KY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Tuyen Thanh Nguyen among 1,526 internal medicine physician records in Kentucky
Tuyen Thanh Nguyen, M.D. is one of 1,526 internal medicine physician records with a practice address in Kentucky. 84% 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 14% of them.
- NPI issued2006 · 14% of these records are older, 51% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated2000 · median 2006 among the 1,025 with a school on file
- Record last updated2018 · 56% 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 Kentucky practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
457 internal medicine physician records list a practice address in Louisville
They are 457 of the 21,891 NPPES records with a practice address in Louisville, and 1,526 internal medicine physician records in Kentucky.
All 1,526 in Kentucky → Every provider in Louisville → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Voltaire Briones, M.D.Louisville, KY 402151952341588
- Valerie Briones-Pryor, M.D.Louisville, KY 402151437102340
- James Dienes, M.D.Louisville, KY 402151689611600
- James Fitzpatrick, M.D.Louisville, KY 402151710924725
- Ravi Gill, MDLouisville, KY 402151285633586
- Akasha Haq, MDLouisville, KY 402151730252453
- Warren Kemper, M DLouisville, KY 402151770595035
- Ann Lombardi, M.D.Louisville, KY 402151124072657
Common questions
What is Tuyen Thanh Nguyen, M.D.'s NPI number?
Tuyen Thanh Nguyen, M.D.'s National Provider Identifier (NPI) is 1073578985, issued on Apr 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Tuyen Thanh Nguyen, M.D. located?
The NPPES record lists a practice address at 1900 Bluegrass Ave Ste 300, Louisville, KY, 40215. Phone: (502) 361-1222. Providers update this record themselves, so call before visiting.
How can I verify Tuyen Thanh Nguyen, M.D.'s license?
NPPES lists Kentucky license number 38166, as entered by the provider. Search the Kentucky Board of Medical Licensure at https://web1.ky.gov/GenSearch/LicenseSearch.aspx?AGY=5. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Tuyen Thanh Nguyen, M.D. prescribe under Medicare Part D?
In 2024, Tuyen Thanh Nguyen, M.D. had 14,198 Medicare Part D claims for 724 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Tuyen Thanh Nguyen, M.D.'s MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.