MR. MICHAEL JEROME WILLIAMS L.P.C.
NPI 1841343662
Counselor - Professional in Saint Louis, MO
About Mr. Michael Jerome Williams L.p.c. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. MICHAEL JEROME WILLIAMS L.P.C. (NPI 1841343662) is an individual professional provider in Saint Louis, Missouri, licensed in Missouri (000331) and active in the NPI registry since January 2007. He is enrolled in Medicare PECOS and is a graduate of Other (1982).
NPPES Registry Identity
Specialties & Licenses 2
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 (PECOS)
Mr. Michael Jerome Williams L.p.c. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Michael Williams reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Durham, NC 27701
- Reassigned Medicare billing, Missouri enrollment
- 56 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.
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 1841343662. It was assigned to this individual provider in the NPPES registry on January 18, 2007.
Where is Michael Williams located?
Michael Williams practices at 9155 Hemis Fair Dr, Saint Louis, MO 63136. The listed phone number is (314) 898-5218.
What is Michael Williams's specialty?
The primary specialty registered for this NPI is Counselor, specializing in Professional, with taxonomy code 101YP2500X.
Is Michael Williams enrolled in Medicare?
Yes. Michael Williams is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Michael Williams's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michael Williams reassigns Medicare benefits to Mental Health Specialty Group PA (Durham, NC). 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 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 Anthem Blue Cross and Blue Shield, Medica, Oscar Insurance Company, Select Health and UnitedHealthcare 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 September 9, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.
# Mr. Michael Jerome Williams, L.P.C. · NPI 1841343662
Professional provider in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since January 18, 2007.
## Identity
- **NPI:** 1841343662 (Entity type: Individual)
- **Enumerated:** January 18, 2007
- **Primary specialty:** Counselor - Professional · taxonomy 101YP2500X
- **State license:** 000331 (Missouri)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 9155 HEMIS FAIR DR, Saint Louis, MO 63136-4006
- **Phone:** (314) 898-5218
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Mental Health Specialty Group PA (NPI 1801472634, Durham, NC), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1982
## Record status
- **NPPES last updated:** September 9, 2009
- **Other identifiers:** Medicaid 493267322 (MO)
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Source: [NPI Profile](https://npiprofile.com/npi/1841343662) · Data from the CMS NPPES public registry.