MICHAEL B CHEN M.D.
NPI 1023056355
Obstetrics & Gynecology in Saint Louis, MO
About Michael B Chen M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MICHAEL B CHEN M.D. (NPI 1023056355) is an individual obstetrics & gynecology provider in Saint Louis, Missouri, licensed in Missouri (108742) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1995).
NPPES Registry Identity
Specialties & Licenses
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
Michael B Chen M.d. 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
5Medicare enrollment records show Michael Chen reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Saint Louis, MO 63131
- Reassigned Medicare billing, Missouri enrollment
- 82 clinicians in this Medicare group
Murphysboro, IL 62966
- Reassigned Medicare billing, Illinois enrollment
- 52 clinicians in this Medicare group
Springfield, MO 65802
- Reassigned Medicare billing, Missouri enrollment
- 41 clinicians in this Medicare group
Berwyn, IL 60402
- Reassigned Medicare billing, Illinois enrollment
- 219 clinicians in this Medicare group
Logan, UT 84341
- Reassigned Medicare billing, Utah enrollment
- 3,691 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63131 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other 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 63131
SAINT LOUIS, MO 63131
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 Michael Chen's NPI number?
The NPI number for Michael Chen is 1023056355. It was assigned to this individual provider in the NPPES registry on June 2, 2006.
Where is Michael Chen located?
Michael Chen practices at 3015 N Ballas Rd, Saint Louis, MO 63131. The listed phone number is (314) 996-5000.
What is Michael Chen's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Michael Chen enrolled in Medicare?
Yes. Michael Chen 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 Michael Chen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michael Chen reassigns Medicare benefits to 5 organizations: Missouri Baptist Medical Center (Saint Louis, MO), Shawnee Health Service And Development Corp (Murphysboro, IL), Obhg Missouri, PC (Springfield, MO), Obhg Illinois Sc (Berwyn, IL) and Ihc Health Services Inc (Logan, UT). 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 Michael Chen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Michael Chen accept?
Health plans from Providence Health Plan list Michael Chen 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.
When was this NPI record last updated?
The NPPES record for Michael Chen was last updated on April 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Michael B Chen, M.D. · NPI 1023056355
Obstetrics & Gynecology physician in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since June 2, 2006.
## Identity
- **NPI:** 1023056355 (Entity type: Individual)
- **Enumerated:** June 2, 2006
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** 108742 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 3015 N BALLAS RD, Saint Louis, MO 63131-2329
- **Phone:** (314) 996-5000
## 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:** 5 organizations under Medicare reassignment (form CMS-855R): Missouri Baptist Medical Center (NPI 1467461434, Saint Louis, MO); Shawnee Health Service And Development Corp (NPI 1245260645, Murphysboro, IL); Obhg Missouri, PC (NPI 1154672095, Springfield, MO); Obhg Illinois Sc (NPI 1700107216, Berwyn, IL); Ihc Health Services Inc (NPI 1205963105, Logan, UT) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1995
## Record status
- **NPPES last updated:** April 15, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1023056355) · Data from the CMS NPPES public registry.