Christopher Michael Nguyen, DO
Gastroenterology Physician · Chesterfield, MO
Christopher Michael Nguyen, DO is a gastroenterology physician with a practice address in Chesterfield, Missouri, and NPI 1649833237, issued on Apr 18, 2019. Check the license (Missouri 2023019628, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Christopher Michael Nguyen
- Credential
- DO
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License numbers
- 2023019628 MO
T6979 TX
Self-reported in NPPES; status is on the state search - Practice location
- 17298 N Outer 40 RD Ste 200, Chesterfield, MO 63005
- Phone
- (314) 529-4900
- Enumerated
- Apr 18, 2019
- Record last updated
- Aug 6, 2026
- Medicare enrollment
- Enrolled (PECOS I20250207001463); accepts Medicare assignment
- Medical or professional school
- University Of North Texas Hsc, College Of Osteopathic Med, 2019
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 414 in Missouri → Look up another NPI →
Also registered at 17298 N Outer 40 RD Ste 200
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Siri Ancha, MDGastroenterology Physician1700370863
- Timothy Brotherton, MDGastroenterology Physician1053930586
- Cheri Carmody, RN BC ANPNurse Practitioner1467453134
- Taylor Geisman, MDGastroenterology Physician1932629227
- Christi Huguet, CRNACertified Registered Nurse Anesthetist1033215363
- Sarah KeimFamily Nurse Practitioner1285490847
Verify Christopher Michael 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 2023019628Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
71% fewer Medicare Part D claims than the average gastroenterology physician in 2024
236 Medicare Part D claims for 55 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.
Most prescribed
- Omeprazole52 claims
- Pantoprazole Sodium38 claims
- Famotidine33 claims
- Ondansetron Odt16 claims
- Esomeprazole Magnesium13 claims
- Metoclopramide Hcl13 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 practice group's MIPS final score for 2023 (Medicare payment program): 75 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $510.87
6 payments; by number, the most common kind was food and beverage; the largest payer was Boston Scientific Corporation. The 13,350 providers of this specialty with any payment received $5,015.95 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
- Ssm Health Care GroupSaint Louis, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Christopher Michael Nguyen among 414 gastroenterology physician records in Missouri
Christopher Michael Nguyen, DO is one of 414 gastroenterology physician records with a practice address in Missouri. 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 2019, is newer than 93% of them.
- NPI issued2019 · 93% of these records are older, 4% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 73% of these records are
- Graduated2019 · median 2003 among the 303 with a school on file
- Record last updated2026 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
25 gastroenterology physician records list a practice address in Chesterfield
They are 25 of the 2,132 NPPES records with a practice address in Chesterfield, and 414 gastroenterology physician records in Missouri.
All 414 in Missouri → Every provider in Chesterfield → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Siri Ancha, MDChesterfield, MO 630051700370863
- Timothy Brotherton, MDChesterfield, MO 630051053930586
- Taylor Geisman, MDChesterfield, MO 630051932629227
- Jason Haas, DOChesterfield, MO 630051790948008
- Dustin James, MDChesterfield, MO 630051063538676
- Jeffrey Mathews, MDChesterfield, MO 630051285635656
- Brian McMorrow, MDChesterfield, MO 630051851391890
- Rajeev Ramgopal, MDChesterfield, MO 630051194080945
Common questions
What is Christopher Michael Nguyen, DO's NPI number?
Christopher Michael Nguyen, DO's National Provider Identifier (NPI) is 1649833237, issued on Apr 18, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Christopher Michael Nguyen, DO located?
The NPPES record lists a practice address at 17298 N Outer 40 RD Ste 200, Chesterfield, MO, 63005. Phone: (314) 529-4900. Providers update this record themselves, so call before visiting.
How can I verify Christopher Michael Nguyen, DO's license?
NPPES lists Missouri license number 2023019628, 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 Christopher Michael Nguyen, DO prescribe under Medicare Part D?
In 2024, Christopher Michael Nguyen, DO had 236 Medicare Part D claims for 55 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Christopher Michael Nguyen, DO's MIPS final score?
The 2023 MIPS final score is 75 of 100, reported for the practice group. 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.