MR. WILLIAM ARMAS SAMPSON II
NPI 1124588090
Social Worker - Clinical in Saginaw, MI
About Mr. William Armas Sampson Ii NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. WILLIAM ARMAS SAMPSON II (NPI 1124588090) is an individual clinical provider in Saginaw, Michigan, licensed in Michigan (6802090313) and active in the NPI registry since March 2019. He is enrolled in Medicare PECOS and is a graduate of Other (2019).
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
Mr. William Armas Sampson Ii 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 William Sampson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Saginaw, MI 48603
- Reassigned Medicare billing, Michigan enrollment
- 42 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 48603 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.
SAGINAW, MI 48603
SAGINAW, MI 48603
SAGINAW, MI 48603
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 William Sampson's NPI number?
The NPI number for William Sampson is 1124588090. It was assigned to this individual provider in the NPPES registry on March 25, 2019.
Where is William Sampson located?
William Sampson practices at 2100 Hemmeter Rd, Saginaw, MI 48603. The listed phone number is (989) 799-2100.
What is William Sampson's specialty?
The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.
Is William Sampson enrolled in Medicare?
Yes. William Sampson 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 William Sampson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Sampson reassigns Medicare benefits to Saginaw Psychological Services, Inc. (Saginaw, MI). 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 William Sampson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does William Sampson accept?
Health plans from Blue Cross Blue Shield of Michigan Mutual Insurance Company, Oscar Insurance Company and Priority Health list William Sampson 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 William Sampson was last updated on May 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months 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. William Armas Sampson II · NPI 1124588090
Clinical provider in Saginaw, Michigan. Individual provider, active in the CMS NPPES registry since March 25, 2019.
## Identity
- **NPI:** 1124588090 (Entity type: Individual)
- **Enumerated:** March 25, 2019
- **Primary specialty:** Social Worker - Clinical · taxonomy 1041C0700X
- **State license:** 6802090313 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 2100 HEMMETER RD, Saginaw, MI 48603-3944
- **Phone:** (989) 799-2100
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Saginaw Psychological Services, Inc. (NPI 1821163882, Saginaw, MI), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2019
## Record status
- **NPPES last updated:** May 21, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1124588090) · Data from the CMS NPPES public registry.