RENEE ZESCH FNP
NPI 1457586919
Nurse Practitioner - Family in O Fallon, MO
About Renee Zesch Fnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
RENEE ZESCH FNP (NPI 1457586919) is an individual family provider in O Fallon, Missouri, licensed in Missouri (140859) and active in the NPI registry since May 2009. She is enrolled in Medicare PECOS, is affiliated with Ssm St Clare Health Center, and is a graduate of Other (2008).
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
Renee Zesch Fnp 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
4Medicare enrollment records show Renee Zesch reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Chesterfield, MO 63017
- Reassigned Medicare billing, Missouri enrollment
- 263 clinicians in this Medicare group
Chesterfield, MO 63017
- Reassigned Medicare billing, Missouri enrollment
- 169 clinicians in this Medicare group
Ballwin, MO 63011
- Reassigned Medicare billing, Missouri enrollment
- 744 clinicians in this Medicare group
Saint Louis, MO 63141
- Reassigned Medicare billing, Missouri enrollment
- 241 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Ssm St Clare Health Center
Acute Care Hospitals · Fenton, MOPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63368 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 3
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
O FALLON, MO 63368
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 Renee Zesch's NPI number?
The NPI number for Renee Zesch is 1457586919. It was assigned to this individual provider in the NPPES registry on May 27, 2009.
Where is Renee Zesch located?
Renee Zesch practices at 2991 Highway K, O Fallon, MO 63368. The listed phone number is (636) 435-2333.
What is Renee Zesch's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Renee Zesch enrolled in Medicare?
Yes. Renee Zesch 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 Renee Zesch's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Renee Zesch reassigns Medicare benefits to 4 organizations: Mercy Aco Clinical Services Inc (Chesterfield, MO), Mercy East Ambulatory Services LLC (Chesterfield, MO), Mercy Clinic East Communities (Ballwin, 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 Renee Zesch's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Renee Zesch accept?
Health plans from Anthem Blue Cross and Blue Shield list Renee Zesch 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 Renee Zesch affiliated with any hospitals?
According to CMS data, Renee Zesch is affiliated with Ssm St Clare Health Center.
When was this NPI record last updated?
The NPPES record for Renee Zesch was last updated on August 4, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Renee Zesch, FNP · NPI 1457586919
Family physician in O Fallon, Missouri. Individual provider, active in the CMS NPPES registry since May 27, 2009.
## Identity
- **NPI:** 1457586919 (Entity type: Individual)
- **Enumerated:** May 27, 2009
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 140859 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 2991 HIGHWAY K, O Fallon, MO 63368-7862
- **Phone:** (636) 435-2333
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Mercy Aco Clinical Services Inc (NPI 1063965093, Chesterfield, MO); Mercy East Ambulatory Services LLC (NPI 1134673148, Chesterfield, MO); Mercy Clinic East Communities (NPI 1700370061, Ballwin, MO); Mercy Hospitals East Communities (NPI 1255790762, Saint Louis, MO) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2008
## Record status
- **NPPES last updated:** August 4, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1457586919) · Data from the CMS NPPES public registry.