David Yuan-Sou Chen, MD
Dermatology Physician · Saint Louis, MO
David Yuan-Sou Chen, MD is a dermatology physician with a practice address in Saint Louis, Missouri, and NPI 1497018774, issued on Jun 20, 2012. Check the license (Missouri 2016011492, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- David Yuan-Sou Chen
- Credential
- MD
- Primary taxonomy
- Dermatology Physician 207N00000X
- License number
- 2016011492 MO
Self-reported in NPPES; status is on the state search - Practice location
- 4500 Forest Park Ave, Saint Louis, MO 63108
- Phone
- (314) 273-3376
- Enumerated
- Jun 20, 2012
- Record last updated
- Apr 15, 2025
- Fax
- (888) 665-8309
- Medicaid ID
- 200032619 MO
- Medicare enrollment
- Enrolled (PECOS I20160614002343); accepts Medicare assignment
- Medical or professional school
- Washington University School Of Medicine, 2012
- Entity
- Type 1 · individual
8 nearest dermatology physician records → All 278 in Missouri → Look up another NPI →
Also registered at 4500 Forest Park Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify David Yuan-Sou Chen 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 2016011492Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
80% fewer Medicare Part D claims than the average dermatology physician in 2024
156 Medicare Part D claims for 47 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.
Most prescribed
- Triamcinolone Acetonide32 claims
- Mupirocin19 claims
- Ketoconazole18 claims
- Imiquimod13 claims
- Metronidazole11 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): 79.3 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).
Bills Medicare through one group practice
- Washington UniversitySaint Louis, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
David Yuan-Sou Chen among 278 dermatology physician records in Missouri
David Yuan-Sou Chen, MD is one of 278 dermatology physician records with a practice address in Missouri. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 59% of them.
- NPI issued2012 · 59% of these records are older, 38% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2012 · median 2008 among the 190 with a school on file
- Record last updated2025 · 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 207N00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Dermatology Physician providers in Missouri
There are 278 dermatology physician records in Missouri.
All 278 in Missouri → Every provider in Saint Louis → Dermatology Physician nationwide →
The 8 dermatology physician records with the nearest ZIP codes
- Milan Anadkat, MDSaint Louis, MO 631081639267149
- Emily Cole, MDSaint Louis, MO 631081194105981
- Lynn Cornelius, MDSaint Louis, MO 631081922025451
- Heather Jones, MDSaint Louis, MO 631081528354438
- Brian Kim, MDSaint Louis, MO 631081336331826
- Nita Kohli, MDSaint Louis, MO 631081285835454
- Rabia Mayer, MDSaint Louis, MO 631081760865174
- William McCoy, MDSaint Louis, MO 631081588003750
Common questions
What is David Yuan-Sou Chen, MD's NPI number?
David Yuan-Sou Chen, MD's National Provider Identifier (NPI) is 1497018774, issued on Jun 20, 2012. An NPI identifies a provider in billing; it is not a license.
Where is David Yuan-Sou Chen, MD located?
The NPPES record lists a practice address at 4500 Forest Park Ave, Saint Louis, MO, 63108. Phone: (314) 273-3376. Providers update this record themselves, so call before visiting.
How can I verify David Yuan-Sou Chen, MD's license?
NPPES lists Missouri license number 2016011492, 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 David Yuan-Sou Chen, MD prescribe under Medicare Part D?
In 2024, David Yuan-Sou Chen, MD had 156 Medicare Part D claims for 47 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.
What is David Yuan-Sou Chen, MD's MIPS final score?
The 2023 MIPS final score is 79.3 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.