William Stacey, MD
NPI 1992794481 · Epilepsy Physician · Ann Arbor, MI
Enrolled with Medicare as Practitioner - Epileptologists · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Stacey, MD is a Epilepsy Physician provider in Ann Arbor, MI (NPI 1992794481).
Provider details
- NPI number
- 1992794481
- Entity type
- Individual
- Primary specialty
- Epilepsy PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 35-085767 (OH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
187 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Continuous Intraoperative Neurophysiology Monitoring, From Outside the Operating Room (remote Or Nearby), Per Patient, (attention Directed Exclusively to One Patient) Each 15 Minutes (list in Addition to Primary Procedure)G0453 | 128 | $28 |
| Placement of Skin Electrodes and Measurement of Stimulated Sites on Arms and Legs95938 | 26 | $42 |
| Needle Measurement of Electrical Activity in Arm Or Leg Muscles, 2 Extremities95861 | 18 | $73 |
| Placement of Skin Electrodes and Measurement of Central Motor Stimulation in Arms and Legs95939 | 15 | $104 |
Typical Medicare-allowed amounts for these services range $28–$104 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Levetiracetam | 49 |
| Lamotrigine | 44 |
| Divalproex Sodium | 42 |
| Lacosamide | 36 |
| Zonisamide | 32 |
| Cenobamatebrand: Xcopri | 20 |
| Oxcarbazepine | 19 |
| Divalproex Sodiumbrand: Divalproex Sodium Er | 13 |
| Clobazam | 13 |
| Clonazepam | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they include cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-10-18
- Last updated
- 2024-12-30
- Certified
- 2024-12-30
Frequently asked questions
- What is William Stacey's NPI number?
- William Stacey's National Provider Identifier (NPI) is 1992794481, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Stacey's specialty?
- William Stacey is listed in the NPPES registry with a primary specialty of Epilepsy Physician (Allopathic & Osteopathic Physicians).
- Where is William Stacey located?
- William Stacey's practice location on file with NPPES is 1500 E Medical Center Dr, Ann Arbor, MI 48109-5322.
- What is William Stacey's phone number?
- The practice phone number listed in the NPPES registry for William Stacey is (734) 936-9010.
- Does William Stacey accept Medicare?
- William Stacey is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Stacey's NPI active?
- Yes — William Stacey's NPI (1992794481) is active in the NPPES registry as of the last update on 2024-12-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.