Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Chen Wang, MD

Individual provider Surgery Physician · NPI 1447612502

Chen Wang, MD practises General Surgery in Saint Louis, Missouri. Graduated from University of Michigan Medical School in 2016, 10 years ago. Practices with Mercy Clinic Trauma and General Surgery LLC, a 45-clinician group and accepts Medicare assignment. Licensed in Illinois and Missouri.

Years since qualifying
10
Trained at
University of Michigan Medical School
Licensed in
IL, MO
In the registry since
2016
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

621 S New Ballas Rd Ste 560A
Saint Louis, MO 63141-8261
Phone: (314) 251-6440
Fax: (314) 251-4456
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Surgical Critical Care Physician (primary) Taxonomy 2086S0102X · Licence 2025033072 (MO)
Surgery Physician Taxonomy 208600000X · Licence 036166188 (IL)
Surgical Critical Care Physician Taxonomy 2086S0102X · Licence 036166188 (IL)

Record details

NPI number1447612502
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 27, 2016
Last updated in NPPESAugust 26, 2025
Certification dateAugust 26, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyGENERAL SURGERY
Medical schoolUNIVERSITY OF MICHIGAN MEDICAL SCHOOL
Graduated 2016 (10 years in practice)
Group practice Mercy Clinic Trauma And General Surgery Llc — 45 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Colonoscopy 1–10 times
Hernia repair (minimally invasive) 1–10 times
Hernia repair - groin (open) 1–10 times
Removal of tissue 1–10 times
Upper gastrointestinal (GI) endoscopy for acid reflux 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients283
Services billed 475 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Travel and Lodging $891 4 payments · travel or lodging paid or reimbursed, such as to attend a conference
Food and Beverage $378 1 payment · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Mercy Hospital St Louis Hospital · Saint Louis, MO · listed as Mercy Hospitals East Communities Mercy Hospital St Louis

Colleagues at Mercy Clinic Trauma and General Surgery LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 45 clinicians in the practice; 12 are shown here.

Other providers in Saint Louis