Tammy Hang Nguyendon, MD
Internal Medicine Physician · Lexington, KY
Tammy Hang Nguyendon, MD is an internal medicine physician with a practice address in Lexington, Kentucky, and NPI 1033200829, issued on Sep 27, 2006. Check the license (Kentucky 32405, as entered in NPPES) on the Kentucky Board of Medical Licensure; the Medicare figures below come from public CMS files.
- Name
- Tammy Hang Nguyendon
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 32405 KY
Self-reported in NPPES; status is on the state search - Practice location
- 2251 War Admiral Way, Lexington, KY 40509
- Phone
- (859) 287-2515
- Enumerated
- Sep 27, 2006
- Record last updated
- Aug 31, 2016 (not updated in 10 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,526 in Kentucky → Look up another NPI →
Also registered at 2251 War Admiral Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
- John Mullins, MDGeneral Practice Physician1063434538
Verify Tammy Hang Nguyendon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersKentucky Board of Medical Licensure
Search for license 32405Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average internal medicine physician in 2024
89 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Amlodipine Besylate12 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.
Industry payments in 2024: $116.08
1 payment: food and beverage; the largest payer was Idorsia Pharmaceuticals US 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.
Tammy Hang Nguyendon among 1,526 internal medicine physician records in Kentucky
Tammy Hang Nguyendon, MD 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 fileNo · 67% of these records are
- Record last updated2016 · 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).
259 internal medicine physician records list a practice address in Lexington
They are 259 of the 14,031 NPPES records with a practice address in Lexington, and 1,526 internal medicine physician records in Kentucky.
All 1,526 in Kentucky → Every provider in Lexington → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Prathap Bandipalliam, MDLexington, KY 405091114335049
- Rajeana Conway, M.D.Lexington, KY 405091194103044
- Amanda Foxx, M.D.Lexington, KY 405091639462989
- William Greenman, M.D.Lexington, KY 405091295766491
- Salem Hanna, MDLexington, KY 405091992750665
- James Heaphy, MDLexington, KY 405091801817648
- Alexander Hernandez, M.D.Lexington, KY 405091144725946
- Richard Miller, DOLexington, KY 405091477050649
Common questions
What is Tammy Hang Nguyendon, MD's NPI number?
Tammy Hang Nguyendon, MD's National Provider Identifier (NPI) is 1033200829, issued on Sep 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Tammy Hang Nguyendon, MD located?
The NPPES record lists a practice address at 2251 War Admiral Way, Lexington, KY, 40509. Phone: (859) 287-2515. Providers update this record themselves, so call before visiting.
How can I verify Tammy Hang Nguyendon, MD's license?
NPPES lists Kentucky license number 32405, 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 Tammy Hang Nguyendon, MD prescribe under Medicare Part D?
In 2024, Tammy Hang Nguyendon, MD had 89 Medicare Part D claims; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
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.