CHEN WANG MD
NPI 1447612502
Surgery - Surgical Critical Care in Saint Louis, MO
About Chen Wang Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CHEN WANG MD (NPI 1447612502) is an individual surgical critical care provider in Saint Louis, Missouri, licensed in Missouri (2025033072) and active in the NPI registry since March 2016. He is enrolled in Medicare PECOS, is affiliated with Mercy Hospital St Louis, and is a graduate of University Of Michigan Medical School (2016).
NPPES Registry Identity
Specialties & Licenses 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Chen Wang Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Chen Wang reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Saint Louis, MO 63141
- Reassigned Medicare billing, Missouri enrollment
- 49 clinicians in this Medicare group
Peoria, IL 61615
- Reassigned Medicare billing, Illinois enrollment
- 2,944 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 5
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mercy Hospital St Louis
Acute Care Hospitals · Saint Louis, MOMercy Hospital Washington
Acute Care Hospitals · Washington, MOOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAINT LOUIS, MO 63141
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Chen Wang's NPI number?
The NPI number for Chen Wang is 1447612502. It was assigned to this individual provider in the NPPES registry on March 27, 2016.
Where is Chen Wang located?
Chen Wang practices at 621 S New Ballas Rd Ste 560A, Saint Louis, MO 63141. The listed phone number is (314) 251-6440.
What is Chen Wang's specialty?
The primary specialty registered for this NPI is Surgery, specializing in Surgical Critical Care, with taxonomy code 2086S0102X.
Is Chen Wang enrolled in Medicare?
Yes. Chen Wang is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Chen Wang's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Chen Wang reassigns Medicare benefits to 2 organizations: Mercy Clinic Trauma And General Surgery, LLC (Saint Louis, MO) and Osf Multi-Specialty Group (Peoria, IL). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Chen Wang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Chen Wang accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan and Ambetter of Oklahoma and 3 other insurers list Chen Wang as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Chen Wang affiliated with any hospitals?
According to CMS data, Chen Wang is affiliated with Mercy Hospital St Louis and Mercy Hospital Washington.
When was this NPI record last updated?
The NPPES record for Chen Wang was last updated on August 26, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Chen Wang, MD · NPI 1447612502
Surgical Critical Care physician in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since March 27, 2016.
## Identity
- **NPI:** 1447612502 (Entity type: Individual)
- **Enumerated:** March 27, 2016
- **Primary specialty:** Surgery - Surgical Critical Care · taxonomy 2086S0102X
- **State license:** 2025033072 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 621 S NEW BALLAS RD STE 560A, Saint Louis, MO 63141-8261
- **Phone:** (314) 251-6440 · **Fax:** (314) 251-4456
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Mercy Clinic Trauma And General Surgery, LLC (NPI 1699825695, Saint Louis, MO); Osf Multi-Specialty Group (NPI 1922445527, Peoria, IL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Michigan Medical School, class of 2016
## Record status
- **NPPES last updated:** August 26, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1447612502) · Data from the CMS NPPES public registry.