MRS. RAGEAN MARIE MUESSIG MSN, APRN, FNP-BC
NPI 1295233633
Nurse Practitioner - Family in Saint Louis, MO
About Mrs. Ragean Marie Muessig Msn, Aprn, Fnp-bc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MRS. RAGEAN MARIE MUESSIG MSN, APRN, FNP-BC (NPI 1295233633) is an individual family provider in Saint Louis, Missouri, licensed in Missouri (2017024381) and active in the NPI registry since January 2018. She is enrolled in Medicare PECOS and is a graduate of Other (2017).
NPPES Registry Identity
Specialties & Licenses
Other Names 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
Mrs. Ragean Marie Muessig Msn, Aprn, Fnp-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 Ragean Muessig 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
- 241 clinicians in this Medicare group
Chesterfield, MO 63017
- Reassigned Medicare billing, Missouri enrollment
- 263 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 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 6
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 Ragean Muessig's NPI number?
The NPI number for Ragean Muessig is 1295233633. It was assigned to this individual provider in the NPPES registry on January 31, 2018. The provider is also known as Ragean Marie Wasson.
Where is Ragean Muessig located?
Ragean Muessig practices at 701 S New Ballas Rd Ste 330, Saint Louis, MO 63141. The listed phone number is (314) 251-8850.
What is Ragean Muessig's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Ragean Muessig enrolled in Medicare?
Yes. Ragean Muessig 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 Ragean Muessig's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ragean Muessig reassigns Medicare benefits to 2 organizations: Mercy Hospitals East Communities (Saint Louis, MO) and Mercy Aco Clinical Services Inc (Chesterfield, 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 Ragean Muessig's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ragean Muessig accept?
Health plans from Anthem Blue Cross and Blue Shield list Ragean Muessig 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 Ragean Muessig was last updated on September 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 41 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.
# Mrs. Ragean Marie Muessig, MSN, APRN, FNP-BC · NPI 1295233633
Family physician in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since January 31, 2018.
## Identity
- **NPI:** 1295233633 (Entity type: Individual)
- **Enumerated:** January 31, 2018
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 2017024381 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 701 S NEW BALLAS RD STE 330, Saint Louis, MO 63141-8725
- **Phone:** (314) 251-8850
## 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 1427098169, Saint Louis, MO); Mercy Aco Clinical Services Inc (NPI 1063965093, Chesterfield, MO) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2017
## Record status
- **NPPES last updated:** September 22, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1295233633) · Data from the CMS NPPES public registry.