Jennifer Lan-Chi Nguyen, M.D.
Internal Medicine Physician · Wentzville, MO
Jennifer Lan-Chi Nguyen, M.D. is an internal medicine physician with a practice address in Wentzville, Missouri, and NPI 1477878098, issued on Apr 7, 2010. Check the license (Missouri 2014032333, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Jennifer Lan-Chi Nguyen
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 2014032333 MO
Self-reported in NPPES; status is on the state search - Practice location
- 1520 Wentzville Pkwy, Wentzville, MO 63385
- Phone
- (636) 497-4000
- Enumerated
- Apr 7, 2010
- Record last updated
- Oct 13, 2021 (not updated in 5 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,604 in Missouri → Look up another NPI →
Also registered at 1520 Wentzville Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Gina Calvin, FNPNurse Practitioner1366853541
- Tara Casaletto, MSN-FNPNurse Practitioner1336003128
- Lacretia Daniels, NPNurse Practitioner1518103654
- Tamra Esker, FNPNurse Practitioner1538456645
- Kristine FranklinGeneral Practice Registered Nurse1881574093
Verify Jennifer Lan-Chi Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
Search for license 2014032333Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
100% fewer Medicare Part D claims than the average internal medicine physician in 2024
13 Medicare Part D claims, against an average of 3,176 among the 108,855 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.
Industry payments in 2024: $35.85
2 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. 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.
Jennifer Lan-Chi Nguyen among 2,604 internal medicine physician records in Missouri
Jennifer Lan-Chi Nguyen, M.D. is one of 2,604 internal medicine physician records with a practice address in Missouri. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 52% of them.
- NPI issued2010 · 52% of these records are older, 46% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileNo · 55% of these records are
- Record last updated2021 · 48% 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 Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
8 internal medicine physician records list a practice address in Wentzville
They are 8 of the 729 NPPES records with a practice address in Wentzville, and 2,604 internal medicine physician records in Missouri.
All 2,604 in Missouri → Every provider in Wentzville → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Sudheer Atluri, M.D.Wentzville, MO 633851861417313
- Spandana CharlesWentzville, MO 633851447949268
- Murtaza Hayat, M.DWentzville, MO 633851669426383
- Nighat Qadri, MDWentzville, MO 633851316910987
- John Shoup, M.D.Wentzville, MO 633851427476100
- Amanda Sileo, D.O.Wentzville, MO 633851124306287
- Lee Turk, MDWentzville, MO 633851053306977
- Richard Buckles, DOWarrenton, MO 633831023121993
Common questions
What is Jennifer Lan-Chi Nguyen, M.D.'s NPI number?
Jennifer Lan-Chi Nguyen, M.D.'s National Provider Identifier (NPI) is 1477878098, issued on Apr 7, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Jennifer Lan-Chi Nguyen, M.D. located?
The NPPES record lists a practice address at 1520 Wentzville Pkwy, Wentzville, MO, 63385. Phone: (636) 497-4000. Providers update this record themselves, so call before visiting.
How can I verify Jennifer Lan-Chi Nguyen, M.D.'s license?
NPPES lists Missouri license number 2014032333, as entered by the provider. Search the Missouri Board of Registration for the Healing Arts at https://www.fsmb.org/contact-a-state-medical-board/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Jennifer Lan-Chi Nguyen, M.D. prescribe under Medicare Part D?
In 2024, Jennifer Lan-Chi Nguyen, M.D. had 13 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.