MICHAEL R. WILLIAMS NP
NPI 1861436990
Nurse Practitioner in Jackson, MS
About Michael R. Williams Np NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MICHAEL R. WILLIAMS NP (NPI 1861436990) is an individual nurse practitioner in Jackson, Mississippi, licensed in Mississippi (R754167) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 5
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Michael R. Williams Np is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
8Medicare enrollment records show Michael Williams reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Forsyth, MT 59327
- Reassigned Medicare billing, Montana enrollment
- 16 clinicians in this Medicare group
Hardin, MT 59034
- Reassigned Medicare billing, Montana enrollment
- 53 clinicians in this Medicare group
Red Lodge, MT 59068
- Reassigned Medicare billing, Montana enrollment
- 85 clinicians in this Medicare group
Columbus, MT 59019
- Reassigned Medicare billing, Montana enrollment
- 86 clinicians in this Medicare group
Big Timber, MT 59011
- Reassigned Medicare billing, Montana enrollment
- 33 clinicians in this Medicare group
Belgrade, MT 59714
- Reassigned Medicare billing, Montana enrollment
- 35 clinicians in this Medicare group
Townsend, MT 59644
- Reassigned Medicare billing, Montana enrollment
- Also billed through NPI 1447245857 (Montana)
- 65 clinicians in this Medicare group
Unalaska, AK 99685
- Reassigned Medicare billing, Alaska enrollment
- 36 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 39204 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.
JACKSON, MS 39204
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 Michael Williams's NPI number?
The NPI number for Michael Williams is 1861436990. It was assigned to this individual provider in the NPPES registry on June 16, 2006.
Where is Michael Williams located?
Michael Williams practices at 1850 Chadwick Dr, Jackson, MS 39204. The listed phone number is (904) 805-1300.
What is Michael Williams's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Michael Williams enrolled in Medicare?
Yes. Michael Williams is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Michael Williams's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michael Williams reassigns Medicare benefits to 8 organizations: Rosebud Community Hospital Inc (Forsyth, MT), Big Horn Hospital Association (Hardin, MT), Memorial Hospital Association (Red Lodge, MT), Stillwater Hospital Association, Inc. (Columbus, MT), Pioneer Medical Center (Big Timber, MT) and 3 more organizations, listed in the Medicare section above. 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 Michael Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Michael Williams accept?
Health plans from Mountain Health CO-OP, PacificSource Health Plans and Providence Health Plan list Michael 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.
When was this NPI record last updated?
The NPPES record for Michael Williams was last updated on August 3, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.
# Michael R. Williams, NP · NPI 1861436990
Nurse Practitioner physician in Jackson, Mississippi. Individual provider, active in the CMS NPPES registry since June 16, 2006.
## Identity
- **NPI:** 1861436990 (Entity type: Individual)
- **Enumerated:** June 16, 2006
- **Primary specialty:** Nurse Practitioner · taxonomy 363L00000X
- **State license:** R754167 (Mississippi)
- **Sole proprietor:** No
## Practice location
- **Address:** 1850 CHADWICK DR, Jackson, MS 39204-3404
- **Phone:** (904) 805-1300 · **Fax:** (904) 805-1302
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 8 organizations under Medicare reassignment (form CMS-855R): Rosebud Community Hospital Inc (NPI 1194827451, Forsyth, MT); Big Horn Hospital Association (NPI 1891713533, Hardin, MT); Memorial Hospital Association (NPI 1184785099, Red Lodge, MT); Stillwater Hospital Association, Inc. (NPI 1053488387, Columbus, MT); Pioneer Medical Center (NPI 1003939190, Big Timber, MT); and 3 more · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** August 3, 2017
- **Other identifiers:** Other 202011213A (MS); Medicaid 08221076 (MS); Medicare UPIN P08649 (MS); and 2 more
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Source: [NPI Profile](https://npiprofile.com/npi/1861436990) · Data from the CMS NPPES public registry.