WILLIAM BEAUMONT HOSPITAL
NPI 1811044878
Hospitalist in Royal Oak, MI
About William Beaumont Hospital NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WILLIAM BEAUMONT HOSPITAL (NPI 1811044878) is a healthcare organization registered as a hospitalist in Royal Oak, Michigan and active in the NPI registry since January 2007. The organization lists Lesley Willbrandt, Sr. Director Beaumont Shared Svcs, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 15
Other Names 1
Other Identifiers 3
Group Practice 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
William Beaumont Hospital is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Revalidation Due Date
Revalidation due by February 28, 2027
Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.
Clinicians Billing Medicare Through This Organization
432Medicare enrollment records show 432 clinicians reassign Medicare billing to William Beaumont Hospital, which bills Medicare for the services they deliver. Of these, 47 practice at this address and 282 within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 31
Nearest to this location (20)
See all 432Royal Oak, MI 48073
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 William Beaumont Hospital's NPI number?
The NPI number for William Beaumont Hospital is 1811044878. It was assigned to this organization in the NPPES registry on January 4, 2007.
Where is William Beaumont Hospital located?
William Beaumont Hospital is located at 3601 W 13 Mile Rd, Royal Oak, MI 48073. The listed phone number is (248) 585-8271.
What is William Beaumont Hospital's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is William Beaumont Hospital enrolled in Medicare?
Yes. William Beaumont Hospital is registered in the Medicare PECOS enrollment system.
When is William Beaumont Hospital's Medicare revalidation due?
According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Part A enrollment for this organization (Michigan, Hospital) is due for revalidation by February 28, 2027. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.
How many clinicians bill Medicare through William Beaumont Hospital?
According to the CMS Revalidation Reassignment List (October 2026 release), 432 clinicians in 31 Medicare specialties reassign their Medicare billing to William Beaumont Hospital. A 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 the clinician's services. The largest specialties are Certified Registered Nurse Anesthetist (CRNA) (278), Family Practice (38) and Pediatric Medicine (26). Of these, 47 practice at this address and 282 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
What insurance does William Beaumont Hospital accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company and 1 other insurer list William Beaumont Hospital 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 Beaumont Hospital was last updated on October 12, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# William Beaumont Hospital · NPI 1811044878
Hospitalist organization in Royal Oak, Michigan. Organization record, active in the CMS NPPES registry since January 4, 2007.
## Identity
- **NPI:** 1811044878 (Entity type: Organization)
- **Enumerated:** January 4, 2007
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **Organization subpart:** Yes (part of William Beaumont Hospital)
- **Authorized official:** Lesley Willbrandt, SR. DIRECTOR BEAUMONT SHARED SVCS
## Practice location
- **Address:** 3601 W 13 MILE RD, Royal Oak, MI 48073-6712
- **Phone:** (248) 585-8271
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Medicare revalidation due:** February 28, 2027 (Part A, Michigan, Hospital) · CMS Revalidation Due Date List, October 2026 release
- **Clinicians billing through this organization:** 432 clinicians in 31 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Certified Registered Nurse Anesthetist (CRNA) (278), Family Practice (38), Pediatric Medicine (26); 47 practice at this address and 282 within 10 miles; [full list](https://npiprofile.com/npi/1811044878/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** October 12, 2022
- **Other identifiers:** Other 0F364420 (MI); Other 0F349850 (MI); Other 0F359270 (MI)
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Source: [NPI Profile](https://npiprofile.com/npi/1811044878) · Data from the CMS NPPES public registry.