Tam Thanh-Thi Ly, M.D.
Infectious Disease Physician · Warrenton, VA
Tam Thanh-Thi Ly, M.D. is an infectious disease physician with a practice address in Warrenton, Virginia, and NPI 1992858443, issued on Jan 19, 2007. Check the license (Virginia 0101237779, as entered in NPPES) on the Virginia Department of Health Professions; the Medicare figures below come from public CMS files.
- Name
- Tam Thanh-Thi Ly
- Credential
- M.D.
- Primary taxonomy
- Infectious Disease Physician 207RI0200X
- License number
- 0101237779 VA
Self-reported in NPPES; status is on the state search - Practice location
- 550 Hospital Dr, Warrenton, VA 20186
- Phone
- (540) 316-5940
- Enumerated
- Jan 19, 2007
- Record last updated
- Jan 23, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (540) 316-5941
- Medicare enrollment
- Enrolled (PECOS I20070924000746); accepts Medicare assignment
- Medical or professional school
- Virginia Commonwealth University, School Of Medicine, 2002
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest infectious disease physician records → All 239 in Virginia → Look up another NPI →
Also registered at 550 Hospital Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Allison Croushorn, AUDAudiologist1063256808
- Rahul Dewan, MDNeurology Physician1598721029
- Lida TabatabaeianEndocrinology, Diabetes & Metabolism Physician1184805079
Verify Tam Thanh-Thi Ly in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersVirginia Department of Health Professions
Search for license 0101237779Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average infectious disease physician in 2024
14 Medicare Part D claims, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D.
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.
Bills Medicare through one group practice
- Uva Community Health Medical Group LLCManassas, VA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Tam Thanh-Thi Ly among 239 infectious disease physician records in Virginia
Tam Thanh-Thi Ly, M.D. is one of 239 infectious disease physician records with a practice address in Virginia. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 44% of them.
- NPI issued2007 · 44% of these records are older, 41% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated2002 · median 2002 among the 145 with a school on file
- Record last updated2015 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Infectious Disease Physician providers in Virginia
There are 239 infectious disease physician records in Virginia.
All 239 in Virginia → Every provider in Warrenton → Infectious Disease Physician nationwide →
The 8 infectious disease physician records with the nearest ZIP codes
- Darrell McBride, D.O.Warrenton, VA 201861508127069
- Lavanya Nutankalva, MDReston, VA 201901003997339
- John McClain, M.D.Lovettsville, VA 201801093944530
- Seemi Andrabi, M.D.Lansdowne, VA 201761801949359
- Nadia Kousar, M.D.Leesburg, VA 201761306002233
- Antonio Pastor, M.D.Sterling, VA 201661912120056
- Paul Ramilo, MDCentreville, VA 201211821045501
- Henry Rhee, MDCentreville, VA 201211265489868
Common questions
What is Tam Thanh-Thi Ly, M.D.'s NPI number?
Tam Thanh-Thi Ly, M.D.'s National Provider Identifier (NPI) is 1992858443, issued on Jan 19, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Tam Thanh-Thi Ly, M.D. located?
The NPPES record lists a practice address at 550 Hospital Dr, Warrenton, VA, 20186. Phone: (540) 316-5940. Providers update this record themselves, so call before visiting.
How can I verify Tam Thanh-Thi Ly, M.D.'s license?
NPPES lists Virginia license number 0101237779, as entered by the provider. Search the Virginia Department of Health Professions at https://dhp.virginiainteractive.org/lookup/index. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Tam Thanh-Thi Ly, M.D. prescribe under Medicare Part D?
In 2024, Tam Thanh-Thi Ly, M.D. had 14 Medicare Part D claims; the average among infectious disease physician prescribers was 689. 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.