WILLIAM CHARLES STACEY MD
NPI 1992794481
Psychiatry & Neurology - Epilepsy
in Ann Arbor, MI
About William Charles Stacey Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WILLIAM CHARLES STACEY MD (NPI 1992794481) is an individual epilepsy provider in Ann Arbor, Michigan, licensed in Michigan (4301095987) and active in the NPI registry since October 2005. He is enrolled in Medicare PECOS, is affiliated with University Of Michigan Health System, and is a graduate of Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University (2002).
NPPES Registry Identity
Specialties & Licenses 2
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 Charles Stacey Md 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
3Medicare enrollment records show William Stacey reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Ann Arbor, MI 48109
- Reassigned Medicare billing, Michigan enrollment
- 2,377 clinicians in this Medicare group
Midland, MI 48670
- Reassigned Medicare billing, Michigan enrollment
- 536 clinicians in this Medicare group
Grand Rapids, MI 49546
- Reassigned Medicare billing, Michigan enrollment
- 685 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.
University Of Michigan Health System
Acute Care Hospitals · Ann Arbor, MIOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
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 Stacey's NPI number?
The NPI number for William Stacey is 1992794481. It was assigned to this individual provider in the NPPES registry on October 18, 2005.
Where is William Stacey located?
William Stacey practices at 1500 E Medical Center Dr 1st Floor Taubman Center Recp C, Ann Arbor, MI 48109. The listed phone number is (734) 936-9010.
What is William Stacey's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Epilepsy, with taxonomy code 2084E0001X.
Is William Stacey enrolled in Medicare?
Yes. William Stacey 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 Stacey's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Stacey reassigns Medicare benefits to 3 organizations: Regents Of The University Of Michigan (Ann Arbor, MI), Mymichigan Medical Center Midland (Midland, MI) and Metropolitan Hospital (Grand Rapids, MI). 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 Stacey's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does William Stacey 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 Stacey 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 Stacey affiliated with any hospitals?
According to CMS data, William Stacey is affiliated with University Of Michigan Health System.
When was this NPI record last updated?
The NPPES record for William Stacey was last updated on December 30, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 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.
# William Charles Stacey, MD · NPI 1992794481
Epilepsy physician in Ann Arbor, Michigan. Individual provider, active in the CMS NPPES registry since October 18, 2005.
## Identity
- **NPI:** 1992794481 (Entity type: Individual)
- **Enumerated:** October 18, 2005
- **Primary specialty:** Psychiatry & Neurology - Epilepsy · taxonomy 2084E0001X
- **State license:** 4301095987 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 1500 E MEDICAL CENTER DR, 1ST FLOOR TAUBMAN CENTER RECP C, Ann Arbor, MI 48109-5322
- **Phone:** (734) 936-9010
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Regents Of The University Of Michigan (NPI 1003848144, Ann Arbor, MI); Mymichigan Medical Center Midland (NPI 1205889490, Midland, MI); Metropolitan Hospital (NPI 1720590961, Grand Rapids, MI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University, class of 2002
## Record status
- **NPPES last updated:** December 30, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1992794481) · Data from the CMS NPPES public registry.