ANNETTE GAMBRILL DNP, FNP-C
NPI 1780408492
Nurse Practitioner - Family in Lake St Louis, MO
About Annette Gambrill Dnp, Fnp-c NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ANNETTE GAMBRILL DNP, FNP-C (NPI 1780408492) is an individual family provider in Lake St Louis, Missouri, licensed in Missouri (2026023774) and active in the NPI registry since November 2024. She is enrolled in Medicare PECOS and is a graduate of Southern Illinois University School Of Medicine (2026).
NPPES Registry Identity
Specialties & Licenses 2
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)
Annette Gambrill Dnp, Fnp-c is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Annette Gambrill reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
O Fallon, MO 63366
- Reassigned Medicare billing, Missouri enrollment
- 697 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.
Physician 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 9
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Annette Gambrill's NPI number?
The NPI number for Annette Gambrill is 1780408492. It was assigned to this individual provider in the NPPES registry on November 9, 2024.
Where is Annette Gambrill located?
Annette Gambrill practices at 400 Medical Plz Ste 200, Lake St Louis, MO 63367. The listed phone number is (636) 625-2662.
What is Annette Gambrill's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Annette Gambrill enrolled in Medicare?
Yes. Annette Gambrill is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Annette Gambrill's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Annette Gambrill reassigns Medicare benefits to Ssm Medical Group, Inc. (O Fallon, MO). The 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 Annette Gambrill's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Annette Gambrill accept?
Health plans from Medica and Oscar Insurance Company list Annette Gambrill 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 Annette Gambrill was last updated on August 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 60 days 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.
# Annette Gambrill, DNP, FNP-C · NPI 1780408492
Family physician in Lake St Louis, Missouri. Individual provider, active in the CMS NPPES registry since November 9, 2024.
## Identity
- **NPI:** 1780408492 (Entity type: Individual)
- **Enumerated:** November 9, 2024
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 2026023774 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 400 MEDICAL PLZ STE 200, Lake St Louis, MO 63367-1417
- **Phone:** (636) 625-2662
## 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:** Ssm Medical Group, Inc. (NPI 1851896146, O Fallon, MO), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Southern Illinois University School Of Medicine, class of 2026
## Record status
- **NPPES last updated:** August 29, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1780408492) · Data from the CMS NPPES public registry.