DR. CHRISTOPHER DAVID CORIASSO DO
NPI 1194255455
Internal Medicine - Critical Care Medicine in Lake Saint Louis, MO
About Dr. Christopher David Coriasso Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. CHRISTOPHER DAVID CORIASSO DO (NPI 1194255455) is an individual critical care medicine provider in Lake Saint Louis, Missouri, licensed in Missouri (2019000880) and active in the NPI registry since June 2017. He is enrolled in Medicare PECOS, is affiliated with Ssm St Joseph Health Center, and maintains a secondary practice location in Saint Charles.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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
Dr. Christopher David Coriasso Do 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
3Medicare enrollment records show Christopher Coriasso reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Lake St Louis, MO 63367
- Reassigned Medicare billing, Missouri enrollment
- 741 clinicians in this Medicare group
Saint Louis, MO 63141
- Reassigned Medicare billing, Missouri enrollment
- 77 clinicians in this Medicare group
Fenton, MO 63026
- Reassigned Medicare billing, Missouri enrollment
- 255 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 2
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.
Ssm St Joseph Health Center
Acute Care Hospitals · Saint Charles, MOSsm St Joseph Hospital West
Acute Care Hospitals · Lake Saint Louis, MOPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63367 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
LAKE ST LOUIS, MO 63367
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 Christopher Coriasso's NPI number?
The NPI number for Christopher Coriasso is 1194255455. It was assigned to this individual provider in the NPPES registry on June 19, 2017.
Where is Christopher Coriasso located?
Christopher Coriasso practices at 100 Medical Plz, Lake Saint Louis, MO 63367. The listed phone number is (636) 625-5200.
What is Christopher Coriasso's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.
Is Christopher Coriasso enrolled in Medicare?
Yes. Christopher Coriasso 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 Christopher Coriasso's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Christopher Coriasso reassigns Medicare benefits to 3 organizations: Ssm Health Care St. Louis (Lake St Louis, MO), Mercy Clinic Adult Critical Care, LLC (Saint Louis, MO) and Cogent Healthcare Of Missouri, Inc (Fenton, 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 Christopher Coriasso's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Christopher Coriasso 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 2 other insurers list Christopher Coriasso 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 Christopher Coriasso affiliated with any hospitals?
According to CMS data, Christopher Coriasso is affiliated with Ssm St Joseph Health Center and Ssm St Joseph Hospital West.
When was this NPI record last updated?
The NPPES record for Christopher Coriasso was last updated on December 26, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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. Christopher David Coriasso, DO · NPI 1194255455
Critical Care Medicine physician in Lake Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since June 19, 2017.
## Identity
- **NPI:** 1194255455 (Entity type: Individual)
- **Enumerated:** June 19, 2017
- **Primary specialty:** Internal Medicine - Critical Care Medicine · taxonomy 207RC0200X
- **State license:** 2019000880 (Missouri)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 100 MEDICAL PLZ, Lake Saint Louis, MO 63367-1366
- **Phone:** (636) 625-5200
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Ssm Health Care St. Louis (NPI 1538113097, Lake St Louis, MO); Mercy Clinic Adult Critical Care, LLC (NPI 1730119421, Saint Louis, MO); Cogent Healthcare Of Missouri, Inc (NPI 1780961599, Fenton, MO) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2017
## Record status
- **NPPES last updated:** December 26, 2023
---
Source: [NPI Profile](https://npiprofile.com/npi/1194255455) · Data from the CMS NPPES public registry.