DR. LAWRENCE OSEI MD
NPI 1093991887
Internal Medicine - Critical Care Medicine in Saint Peters, MO
About Dr. Lawrence Osei Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. LAWRENCE OSEI MD (NPI 1093991887) is an individual critical care medicine provider in Saint Peters, Missouri, licensed in Missouri (2011033544) and active in the NPI registry since January 2008. He is enrolled in Medicare PECOS and is a graduate of Other (1996).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Lawrence Osei Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
4Medicare enrollment records show Lawrence Osei reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Saint Louis, MO 63108
- Reassigned Medicare billing, Illinois enrollment
- 530 clinicians in this Medicare group
O Fallon, IL 62269
- Reassigned Medicare billing, Illinois enrollment
- 99 clinicians in this Medicare group
Oak Ridge, TN 37830
- Reassigned Medicare billing, Missouri enrollment
- 193 clinicians in this Medicare group
Eagle, CO 81631
- Reassigned Medicare billing, Colorado enrollment
- 22 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
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63376 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
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 PETERS, MO 63376
SAINT PETERS, MO 63376
SAINT PETERS, MO 63376
SAINT PETERS, MO 63376
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 Lawrence Osei's NPI number?
The NPI number for Lawrence Osei is 1093991887. It was assigned to this individual provider in the NPPES registry on January 11, 2008.
Where is Lawrence Osei located?
Lawrence Osei practices at 10 Hospital Dr Dept Anesthesiology, Saint Peters, MO 63376. The listed phone number is (800) 862-9980.
What is Lawrence Osei's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.
Is Lawrence Osei enrolled in Medicare?
Yes. Lawrence Osei is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Lawrence Osei's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Lawrence Osei reassigns Medicare benefits to 4 organizations: Washington University Physicians In Illinois, Inc (Saint Louis, MO), Cep America Illinois Intensivists (O Fallon, IL), Southeastern Physician Services PC (Oak Ridge, TN) and Valley View Hospital Association (Eagle, CO). 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 Lawrence Osei's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Lawrence Osei was last updated on November 15, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Dr. Lawrence Osei, MD · NPI 1093991887
Critical Care Medicine physician in Saint Peters, Missouri. Individual provider, active in the CMS NPPES registry since January 11, 2008.
## Identity
- **NPI:** 1093991887 (Entity type: Individual)
- **Enumerated:** January 11, 2008
- **Primary specialty:** Internal Medicine - Critical Care Medicine · taxonomy 207RC0200X
- **State license:** 2011033544 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 10 HOSPITAL DR, DEPT ANESTHESIOLOGY, Saint Peters, MO 63376-1659
- **Phone:** (800) 862-9980 · **Fax:** (314) 362-1185
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): Washington University Physicians In Illinois, Inc (NPI 1457203135, Saint Louis, MO); Cep America Illinois Intensivists (NPI 1992204184, O Fallon, IL); Southeastern Physician Services PC (NPI 1083835441, Oak Ridge, TN); Valley View Hospital Association (NPI 1033754841, Eagle, CO) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1996
## Record status
- **NPPES last updated:** November 15, 2021
- **Other identifiers:** Medicaid 207166307 (MO)
---
Source: [NPI Profile](https://npiprofile.com/npi/1093991887) · Data from the CMS NPPES public registry.