MRS. TRACY KILLIAN NP-C
NPI 1477903284
Nurse Practitioner - Acute Care in Saint Charles, MO
About Mrs. Tracy Killian Np-c NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MRS. TRACY KILLIAN NP-C (NPI 1477903284) is an individual acute care provider in Saint Charles, Missouri, licensed in Missouri (145843) and active in the NPI registry since June 2016. She is enrolled in Medicare PECOS and is a graduate of Other (2015).
NPPES Registry Identity
Specialties & Licenses
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. Tracy Killian Np-c 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 Tracy Killian 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
- 169 clinicians in this Medicare group
Wentzville, MO 63385
- Reassigned Medicare billing, Missouri enrollment
- 46 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 6
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 63303 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 5
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAINT CHARLES, MO 63303
SAINT CHARLES, MO 63303
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 Tracy Killian's NPI number?
The NPI number for Tracy Killian is 1477903284. It was assigned to this individual provider in the NPPES registry on June 13, 2016.
Where is Tracy Killian located?
Tracy Killian practices at 2893 Veterans Memorial Pkwy, Saint Charles, MO 63303. The listed phone number is (636) 336-1401.
What is Tracy Killian's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Acute Care, with taxonomy code 363LA2100X.
Is Tracy Killian enrolled in Medicare?
Yes. Tracy Killian 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 Tracy Killian's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Tracy Killian reassigns Medicare benefits to 2 organizations: Mercy East Ambulatory Services LLC (Chesterfield, MO) and Our Urgent Care, LLC (Wentzville, 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 Tracy Killian's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Tracy Killian was last updated on June 13, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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. Tracy Killian, NP-C · NPI 1477903284
Acute Care physician in Saint Charles, Missouri. Individual provider, active in the CMS NPPES registry since June 13, 2016.
## Identity
- **NPI:** 1477903284 (Entity type: Individual)
- **Enumerated:** June 13, 2016
- **Primary specialty:** Nurse Practitioner - Acute Care · taxonomy 363LA2100X
- **State license:** 145843 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 2893 VETERANS MEMORIAL PKWY, Saint Charles, MO 63303-3526
- **Phone:** (636) 336-1401
## 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 East Ambulatory Services LLC (NPI 1134673148, Chesterfield, MO); Our Urgent Care, LLC (NPI 1902815863, Wentzville, MO) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2015
## Record status
- **NPPES last updated:** June 13, 2016
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Source: [NPI Profile](https://npiprofile.com/npi/1477903284) · Data from the CMS NPPES public registry.