GABRIELLE GIAMANCO APRN
NPI 1821614561
Nurse Practitioner - Family in Saint Louis, MO
About Gabrielle Giamanco Aprn NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GABRIELLE GIAMANCO APRN (NPI 1821614561) is an individual family provider in Saint Louis, Missouri, licensed in Missouri (2021050320) and active in the NPI registry since June 2020. She is enrolled in Medicare PECOS, is affiliated with Mercy Hospital St Louis, and is a graduate of Other (2021).
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
Gabrielle Giamanco Aprn 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
2Medicare enrollment records show Gabrielle Giamanco reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Saint Louis, MO 63141
- Reassigned Medicare billing, Missouri enrollment
- 77 clinicians in this Medicare group
Saint Louis, MO 63141
- Reassigned Medicare billing, Missouri enrollment
- 228 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 4
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.
Mercy Hospital St Louis
Acute Care Hospitals · Saint Louis, MOMercy Hospital South
Acute Care Hospitals · Saint Louis, MOPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63141 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.
SAINT LOUIS, MO 63141
SAINT LOUIS, MO 63141
SAINT LOUIS, MO 63141
SAINT LOUIS, MO 63141
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 Gabrielle Giamanco's NPI number?
The NPI number for Gabrielle Giamanco is 1821614561. It was assigned to this individual provider in the NPPES registry on June 18, 2020.
Where is Gabrielle Giamanco located?
Gabrielle Giamanco practices at 621 S New Ballas Rd, Saint Louis, MO 63141. The listed phone number is (314) 251-7702.
What is Gabrielle Giamanco's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Gabrielle Giamanco enrolled in Medicare?
Yes. Gabrielle Giamanco 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 Gabrielle Giamanco's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gabrielle Giamanco reassigns Medicare benefits to 2 organizations: Mercy Clinic Adult Critical Care, LLC (Saint Louis, MO) and Mercy Clinic 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 Gabrielle Giamanco's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Gabrielle Giamanco 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 Gabrielle Giamanco 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 Gabrielle Giamanco affiliated with any hospitals?
According to CMS data, Gabrielle Giamanco is affiliated with Mercy Hospital St Louis and Mercy Hospital South.
When was this NPI record last updated?
The NPPES record for Gabrielle Giamanco was last updated on May 27, 2022. 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.
# Gabrielle Giamanco, APRN · NPI 1821614561
Family physician in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since June 18, 2020.
## Identity
- **NPI:** 1821614561 (Entity type: Individual)
- **Enumerated:** June 18, 2020
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 2021050320 (Missouri)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 621 S NEW BALLAS RD, Saint Louis, MO 63141-8232
- **Phone:** (314) 251-7702
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Mercy Clinic Adult Critical Care, LLC (NPI 1730119421, Saint Louis, MO); Mercy Clinic East Communities (NPI 1043574940, Saint Louis, MO) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2021
## Record status
- **NPPES last updated:** May 27, 2022
---
Source: [NPI Profile](https://npiprofile.com/npi/1821614561) · Data from the CMS NPPES public registry.