NPPES file of Aug 9, 2026

Yu Chen, M.D.

Radiation Oncology Physician · Lake St Louis, MO

Yu Chen, M.D. is a radiation oncology physician with a practice address in Lake St Louis, Missouri, and NPI 1740501014, issued on Jun 21, 2010. Check the license (Missouri 2015020211, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1740501014
Name
Yu Chen
Credential
M.D.
Primary taxonomy
Radiation Oncology Physician 2085R0001X
License numbers
2015020211 MO
125058393 IL
Self-reported in NPPES; status is on the state search
Practice location
400 Medical Plz Ste 100, Lake St Louis, MO 63367
Phone
(636) 638-8600
Enumerated
Jun 21, 2010
Record last updated
Dec 23, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20150910001900); accepts Medicare assignment
Medical or professional school
Albert Einstein College Of Medicine Of Yeshiva University, 2010
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 400 Medical Plz Ste 100

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. John Bedwinek, MDRadiation Oncology Physician1952367740
  2. Rigoberto De Jesus PizarroHematology & Oncology Physician1922551167
  3. Stephanie Ohmes, RNNurse Practitioner1558243634
  4. Julie Scott, MSN ANPNurse Practitioner1962715649
  5. Kristen Strasser, M.D.Hematology & Oncology Physician1497071971
  6. Thomas Tan, MDHematology & Oncology Physician1275528382

Verify Yu Chen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
    Search for license 2015020211
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Missouri license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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69% more Medicare Part D claims than the average radiation oncology physician in 2024

227 Medicare Part D claims for 82 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. Brand-name drugs were 28% of claims. 44 claims were for opioids.

  1. Yu Chen227
  2. Specialty average134

Most prescribed

  1. Levothyroxine Sodium36 claims
  2. Memantine Hcl19 claims
  3. Omeprazole15 claims
  4. Ssd15 claims
  5. Triamcinolone Acetonide15 claims
  6. Gabapentin12 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.

Bills Medicare through one group practice

  1. Ssm Medical Group IncLake St Louis, MO

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Yu Chen among 136 radiation oncology physician records in Missouri

Yu Chen, M.D. is one of 136 radiation oncology physician records with a practice address in Missouri. 81% 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 65% of them.

  • NPI issued2010 · 65% of these records are older, 29% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated2010 · median 2004 among the 96 with a school on file
  • Record last updated2020 · 46% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Radiation Oncology Physician providers in Missouri

There are 136 radiation oncology physician records in Missouri.

The 8 radiation oncology physician records with the nearest ZIP codes

  1. John Bedwinek, MDLake St Louis, MO 633671952367740
  2. Lannis Hall, MDSaint Peters, MO 633761558472514
  3. Joseph Bean, M.D.Hannibal, MO 634011881682177
  4. Anna Fu, MDSaint Charles, MO 633041982638003
  5. Matthew Johnson, M.D.Saint Charles, MO 633041952612020
  6. Joseph Waller, M.D., M.P.H.Saint Charles, MO 633041376778258
  7. Kathy Baglan, M.D.Saint Louis, MO 631411538122163
  8. Michael Beat, MDSaint Louis, MO 631411053341636

Common questions

What is Yu Chen, M.D.'s NPI number?

Yu Chen, M.D.'s National Provider Identifier (NPI) is 1740501014, issued on Jun 21, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Yu Chen, M.D. located?

The NPPES record lists a practice address at 400 Medical Plz Ste 100, Lake St Louis, MO, 63367. Phone: (636) 638-8600. Providers update this record themselves, so call before visiting.

How can I verify Yu Chen, M.D.'s license?

NPPES lists Missouri license number 2015020211, 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 Yu Chen, M.D. prescribe under Medicare Part D?

In 2024, Yu Chen, M.D. had 227 Medicare Part D claims for 82 beneficiaries; the average among radiation oncology physician prescribers was 134. 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.