PEGGY ANN NICOLAI FNP
NPI 1518390236
Nurse Practitioner - Family in Chesterfield, MO
About Peggy Ann Nicolai Fnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
PEGGY ANN NICOLAI FNP (NPI 1518390236) is an individual family provider in Chesterfield, Missouri, licensed in Missouri (2013009544) and active in the NPI registry since August 2013. She is enrolled in Medicare PECOS.
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 (PECOS)
Peggy Ann Nicolai Fnp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Peggy Nicolai reassigns Medicare billing to 2 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
- Medicare enrollment name: Emergency Physicians Of St Lukes LLC
- 124 clinicians in this Medicare group
Chesterfield, MO 63017
- Reassigned Medicare billing, Missouri enrollment
- 7 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.
Physician 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.
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.
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
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 Peggy Nicolai's NPI number?
The NPI number for Peggy Nicolai is 1518390236. It was assigned to this individual provider in the NPPES registry on August 16, 2013.
Where is Peggy Nicolai located?
Peggy Nicolai practices at 232 S Woods Mill Rd, Chesterfield, MO 63017. The listed phone number is (314) 434-1500.
What is Peggy Nicolai's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Peggy Nicolai enrolled in Medicare?
Yes. Peggy Nicolai is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Peggy Nicolai's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Peggy Nicolai reassigns Medicare benefits to 2 organizations: Emergency Physicians Of St. Luke's, LLC (Chesterfield, MO) and Lawrence E. Samuels M.D., Inc. (Chesterfield, 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 Peggy Nicolai's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Peggy Nicolai accept?
Health plans from Oscar Insurance Company list Peggy Nicolai 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 Peggy Nicolai was last updated on August 16, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Peggy Ann Nicolai, FNP · NPI 1518390236
Family physician in Chesterfield, Missouri. Individual provider, active in the CMS NPPES registry since August 16, 2013.
## Identity
- **NPI:** 1518390236 (Entity type: Individual)
- **Enumerated:** August 16, 2013
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 2013009544 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 232 S WOODS MILL RD, Chesterfield, MO 63017-3417
- **Phone:** (314) 434-1500
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Emergency Physicians Of St. Luke's, LLC (NPI 1215359815, Chesterfield, MO); Lawrence E. Samuels M.D., Inc. (NPI 1225179724, Chesterfield, MO) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** August 16, 2013
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Source: [NPI Profile](https://npiprofile.com/npi/1518390236) · Data from the CMS NPPES public registry.