Quick answers
- Does Demetra McIlwain accept Medicare assignment?
- Yes. Medicare's clinician data says Demetra McIlwain accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Demetra McIlwain's NPI number?
- 1871056002. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Demetra McIlwain works
Medicare's Facility Affiliation Data lists Demetra McIlwain at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Erie County Medical CenterBuffalo, NY · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 330219
Practice locations
Addresses where Demetra McIlwain is enrolled with Medicare (CMS data updated October 2, 2026).
- 1021 Broadway StBuffalo, NY 14212 (716) 529‑3020
- 184 Barton StBuffalo, NY 14213
- 21 Doat StBuffalo, NY 14211 (716) 892‑2775
- 462 Grider StBuffalo, NY 14215 (716) 898‑3000
Group practices
Medicare enrollment lists Demetra McIlwain as a member of these groups (CMS data updated October 2, 2026).
- Erie County Medical Center Corporation319 clinicians in the group
- Jericho Road Ministries, Inc.32 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Buffalo
Clinicians with the same Medicare primary specialty in Buffalo, NY — not a recommendation.
Other clinicians in Erie County Medical Center Corporation
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2018 (8 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1871056002 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians