RHEA J WILLIAMS FNP
NPI 1861612657
Nurse Practitioner - Family in Saint Joseph, MO
About Rhea J Williams Fnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
RHEA J WILLIAMS FNP (NPI 1861612657) is an individual family provider in Saint Joseph, Missouri, licensed in Missouri (086866) and active in the NPI registry since April 2007. She is enrolled in Medicare PECOS, is affiliated with Mosaic Life Care At St Joseph, and is a graduate of Other (1996).
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
Rhea J Williams Fnp 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 Reassignment
Medicare enrollment records show Rhea Williams reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Saint Joseph, MO 64506
- Reassigned Medicare billing, Missouri enrollment
- 471 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 5
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.
Mosaic Life Care At St Joseph
Acute Care Hospitals · Saint Joseph, MOPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 64501 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 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAINT JOSEPH, MO 64501
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 Rhea Williams's NPI number?
The NPI number for Rhea Williams is 1861612657. It was assigned to this individual provider in the NPPES registry on April 26, 2007.
Where is Rhea Williams located?
Rhea Williams practices at 624 Felix St Fl 2, Saint Joseph, MO 64501. The listed phone number is (816) 271-7293.
What is Rhea Williams's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Rhea Williams enrolled in Medicare?
Yes. Rhea Williams 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 organization bills Medicare for Rhea Williams's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Rhea Williams reassigns Medicare benefits to Heartland Regional Medical Center (Saint Joseph, MO). The 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 Rhea Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Rhea Williams 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 3 other insurers list Rhea Williams 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 Rhea Williams affiliated with any hospitals?
According to CMS data, Rhea Williams is affiliated with Mosaic Life Care At St Joseph.
When was this NPI record last updated?
The NPPES record for Rhea Williams was last updated on October 27, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.
# Rhea J Williams, FNP · NPI 1861612657
Family physician in Saint Joseph, Missouri. Individual provider, active in the CMS NPPES registry since April 26, 2007.
## Identity
- **NPI:** 1861612657 (Entity type: Individual)
- **Enumerated:** April 26, 2007
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 086866 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 624 FELIX ST FL 2, Saint Joseph, MO 64501-2235
- **Phone:** (816) 271-7293 · **Fax:** (816) 271-7191
## 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:** Heartland Regional Medical Center (NPI 1477575405, Saint Joseph, MO), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1996
## Record status
- **NPPES last updated:** October 27, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1861612657) · Data from the CMS NPPES public registry.