MS. CORIE LEIGH HEMMER AGNP
NPI 1972104792
Nurse Practitioner - Gerontology in Saint Louis, MO
About Ms. Corie Leigh Hemmer Agnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. CORIE LEIGH HEMMER AGNP (NPI 1972104792) is an individual gerontology provider in Saint Louis, Missouri, licensed in Missouri (2020035897) and active in the NPI registry since November 2020. She is enrolled in Medicare PECOS, is affiliated with Mercy Hospital St Louis, and is a graduate of Other (2020).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
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
Ms. Corie Leigh Hemmer Agnp 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
3Medicare enrollment records show Corie Hemmer reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
St. Louis, MO 63141
- Reassigned Medicare billing, Missouri enrollment
- 29 clinicians in this Medicare group
Saint Louis, MO 63141
- Reassigned Medicare billing, Missouri enrollment
- 49 clinicians in this Medicare group
Saint Louis, MO 63110
- Reassigned Medicare billing, Missouri enrollment
- 1,133 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.
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.
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.
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 Corie Hemmer's NPI number?
The NPI number for Corie Hemmer is 1972104792. It was assigned to this individual provider in the NPPES registry on November 6, 2020.
Where is Corie Hemmer located?
Corie Hemmer practices at 621 S New Ballas Rd Ste 560A, Saint Louis, MO 63141. The listed phone number is (314) 251-6440.
What is Corie Hemmer's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Gerontology, with taxonomy code 363LG0600X.
Is Corie Hemmer enrolled in Medicare?
Yes. Corie Hemmer 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 Corie Hemmer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Corie Hemmer reassigns Medicare benefits to 3 organizations: Mercy Clinic Burn And Plastic Surgery, LLC (St. Louis, MO), Mercy Clinic Trauma And General Surgery, LLC (Saint Louis, MO) and Washington University (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 Corie Hemmer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Corie Hemmer accept?
Health plans from Anthem Blue Cross and Blue Shield list Corie Hemmer 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 Corie Hemmer affiliated with any hospitals?
According to CMS data, Corie Hemmer is affiliated with Mercy Hospital St Louis.
When was this NPI record last updated?
The NPPES record for Corie Hemmer was last updated on September 13, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Ms. Corie Leigh Hemmer, AGNP · NPI 1972104792
Gerontology physician in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since November 6, 2020.
## Identity
- **NPI:** 1972104792 (Entity type: Individual)
- **Enumerated:** November 6, 2020
- **Primary specialty:** Nurse Practitioner - Gerontology · taxonomy 363LG0600X
- **State license:** 2020035897 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 621 S NEW BALLAS RD STE 560A, Saint Louis, MO 63141-8261
- **Phone:** (314) 251-6440
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Mercy Clinic Burn And Plastic Surgery, LLC (NPI 1912037433, St. Louis, MO); Mercy Clinic Trauma And General Surgery, LLC (NPI 1699825695, Saint Louis, MO); Washington University (NPI 1992746903, Saint Louis, MO) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2020
## Record status
- **NPPES last updated:** September 13, 2023
- **Other identifiers:** Medicaid 420094659 (MO)
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Source: [NPI Profile](https://npiprofile.com/npi/1972104792) · Data from the CMS NPPES public registry.