PAUL E BUSE M.D.
NPI 1114993664
Internal Medicine - Gastroenterology in Chesterfield, MO
About Paul E Buse M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
PAUL E BUSE M.D. (NPI 1114993664) is an individual gastroenterology provider in Chesterfield, Missouri, licensed in Missouri (MOR7N74) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS, is affiliated with Mercy Hospital St Louis, and is a graduate of Washington University School Of Medicine (1986).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 4
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
Paul E Buse 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
2Medicare enrollment records show Paul Buse 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
- 69 clinicians in this Medicare group
Saint Louis, MO 63141
- Reassigned Medicare billing, Missouri enrollment
- 435 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 8
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 5
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 Jefferson
Acute Care Hospitals · Festus, MOMercy Hospital South
Acute Care Hospitals · Saint Louis, MOMissouri Baptist Medical Center
Acute Care Hospitals · Town And Country, MOSt Lukes Hospital
Acute Care Hospitals · Chesterfield, MOPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63017 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 4
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.
CHESTERFIELD, MO 63017
CHESTERFIELD, MO 63017
CHESTERFIELD, MO 63017
CHESTERFIELD, MO 63017
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 Paul Buse's NPI number?
The NPI number for Paul Buse is 1114993664. It was assigned to this individual provider in the NPPES registry on February 24, 2006.
Where is Paul Buse located?
Paul Buse practices at 226 S Woods Mill Rd Suite 52 West, Chesterfield, MO 63017. The listed phone number is (314) 434-2399.
What is Paul Buse's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Paul Buse enrolled in Medicare?
Yes. Paul Buse 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 Paul Buse's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Paul Buse reassigns Medicare benefits to 2 organizations: Mercy Clinic Gastroenterology, LLC (Saint Louis, MO) and Mercy Hospitals East Communities (Saint Louis, MO). 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 Paul Buse's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Paul Buse 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 Paul Buse 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 Paul Buse affiliated with any hospitals?
According to CMS data, Paul Buse is affiliated with Mercy Hospital St Louis, Mercy Hospital Jefferson, Mercy Hospital South, Missouri Baptist Medical Center and St Lukes Hospital.
When was this NPI record last updated?
The NPPES record for Paul Buse was last updated on March 30, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 years 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.
# Paul E Buse, M.D. · NPI 1114993664
Gastroenterology physician in Chesterfield, Missouri. Individual provider, active in the CMS NPPES registry since February 24, 2006.
## Identity
- **NPI:** 1114993664 (Entity type: Individual)
- **Enumerated:** February 24, 2006
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **State license:** MOR7N74 (Missouri)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 226 S WOODS MILL RD, SUITE 52 WEST, Chesterfield, MO 63017-3662
- **Phone:** (314) 434-2399 · **Fax:** (314) 434-5650
## 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 Gastroenterology, LLC (NPI 1528295334, Saint Louis, MO); Mercy Hospitals East Communities (NPI 1851431738, Saint Louis, MO) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Washington University School Of Medicine, class of 1986
## Record status
- **NPPES last updated:** March 30, 2011
- **Other identifiers:** Other 27911 (MO); Medicaid 203312608 (MO); Medicare ID-Type Unspecified 003011461 (MO); and 1 more
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Source: [NPI Profile](https://npiprofile.com/npi/1114993664) · Data from the CMS NPPES public registry.