MRS. NICOLE LYNN DUNCAN ACNP-BC
NPI 1578739561
Nurse Practitioner - Acute Care in Saint Louis, MO
About Mrs. Nicole Lynn Duncan Acnp-bc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MRS. NICOLE LYNN DUNCAN ACNP-BC (NPI 1578739561) is an individual acute care provider in Saint Louis, Missouri, licensed in Missouri (2003017940) and active in the NPI registry since April 2008. She is enrolled in Medicare PECOS, is affiliated with Mercy Hospital St Louis, 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
Mrs. Nicole Lynn Duncan Acnp-bc 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 Nicole Duncan 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
- 435 clinicians in this Medicare group
Saint Louis, MO 63141
- Reassigned Medicare billing, Missouri enrollment
- 326 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
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
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, 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 Nicole Duncan's NPI number?
The NPI number for Nicole Duncan is 1578739561. It was assigned to this individual provider in the NPPES registry on April 30, 2008.
Where is Nicole Duncan located?
Nicole Duncan practices at 621 S New Ballas Rd Saint Louis, Saint Louis, MO 63141. The listed phone number is (314) 251-6339.
What is Nicole Duncan's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Acute Care, with taxonomy code 363LA2100X.
Is Nicole Duncan enrolled in Medicare?
Yes. Nicole Duncan 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 Nicole Duncan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nicole Duncan reassigns Medicare benefits to 2 organizations: Mercy Hospitals East Communities (Saint Louis, MO) and Mercy Clinic Adult Hospitalists - St. Louis, LLC (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 Nicole Duncan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Nicole Duncan accept?
Health plans from Anthem Blue Cross and Blue Shield list Nicole Duncan 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 Nicole Duncan affiliated with any hospitals?
According to CMS data, Nicole Duncan is affiliated with Mercy Hospital St Louis.
When was this NPI record last updated?
The NPPES record for Nicole Duncan was last updated on August 3, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.
# Mrs. Nicole Lynn Duncan, ACNP-BC · NPI 1578739561
Acute Care physician in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since April 30, 2008.
## Identity
- **NPI:** 1578739561 (Entity type: Individual)
- **Enumerated:** April 30, 2008
- **Primary specialty:** Nurse Practitioner - Acute Care · taxonomy 363LA2100X
- **State license:** 2003017940 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 621 S NEW BALLAS RD, SAINT LOUIS, Saint Louis, MO 63141-8232
- **Phone:** (314) 251-6339
## 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 Hospitals East Communities (NPI 1851431738, Saint Louis, MO); Mercy Clinic Adult Hospitalists - St. Louis, LLC (NPI 1841235108, Saint Louis, MO) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2008
## Record status
- **NPPES last updated:** August 3, 2008
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Source: [NPI Profile](https://npiprofile.com/npi/1578739561) · Data from the CMS NPPES public registry.