WILLIAM COSGROVE D.O.
NPI 1891743829
Anesthesiology in Royal Oak, MI
About William Cosgrove D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WILLIAM COSGROVE D.O. (NPI 1891743829) is an individual anesthesiology provider in Royal Oak, Michigan, licensed in Michigan (5101011702) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Promedica Monroe Regional Hospital, and is a graduate of Michigan State University College Of Osteopathic Medicine (1992).
NPPES Registry Identity
Specialties & Licenses
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 and accepts Medicare assignment
William Cosgrove D.o. 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 Reassignments
2Medicare enrollment records show William Cosgrove reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Monroe, MI 48162
- Reassigned Medicare billing, Michigan enrollment
- 109 clinicians in this Medicare group
Toledo, OH 43604
- Reassigned Medicare billing, Michigan enrollment
- 123 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 4
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.
Promedica Monroe Regional Hospital
Acute Care Hospitals · Monroe, MIMedicare 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ROYAL OAK, MI 48073
ROYAL OAK, MI 48073
ROYAL OAK, MI 48073
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 Cosgrove's NPI number?
The NPI number for William Cosgrove is 1891743829. It was assigned to this individual provider in the NPPES registry on May 4, 2006.
Where is William Cosgrove located?
William Cosgrove practices at 3601 W 13 Mile Rd William Beaumont Hospital, Royal Oak, MI 48073. The listed phone number is (248) 458-0400.
What is William Cosgrove's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is William Cosgrove enrolled in Medicare?
Yes. William Cosgrove 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 organizations bill Medicare for William Cosgrove's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Cosgrove reassigns Medicare benefits to 2 organizations: Ambulatory Anesthesia Associates, PC (Monroe, MI) and Promedica Central Corporation Of Michigan (Toledo, OH). 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 William Cosgrove's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does William Cosgrove accept?
Health plans from Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company, CareSource and Priority Health list William Cosgrove 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 William Cosgrove affiliated with any hospitals?
According to CMS data, William Cosgrove is affiliated with Promedica Monroe Regional Hospital.
When was this NPI record last updated?
The NPPES record for William Cosgrove was last updated on July 25, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.