Quick answers
- Does Merrie W. Oei accept Medicare assignment?
- Yes. Medicare's clinician data says Merrie W. Oei 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.
- How many Medicare patients does Merrie W. Oei see?
- In 2024, CMS data shows 910 Original Medicare patients and 2,019 services for Merrie W. Oei. This counts Original Medicare only and measures volume, not quality.
- What is Merrie W. Oei's NPI number?
- 1801247713. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Merrie W. Oei, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 910 |
|---|---|
| Services billed to Medicare | 2,019 |
| Different services or procedures | 103 |
| Participating Medicare provider | Yes |
| Average age of these patients | 68 |
Most frequent services
- X-ray of chest, 1 view (71045)373 services
- Ct scan head or brain without contrast (70450)225 services
- X-ray of chest, 2 views (71046)95 services
- Ct scan of upper spine without contrast (72125)95 services
- Ct scan of blood vessels of chest with contrast (71275)80 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Arthritis54%
- Chronic kidney disease44%
- Depression43%
- Anxiety41%
Hospitals where Merrie W. Oei works
Medicare's Facility Affiliation Data lists Merrie W. Oei 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
- Kaleida HealthBuffalo, NY · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 330005
Practice locations
Addresses where Merrie W. Oei is enrolled with Medicare (CMS data updated October 2, 2026).
- 3085 Harlem Rd, Suite 150Cheektowaga, NY 14225 (716) 844‑5300
- 3850 Saunders Settlement RdSanborn, NY 14132 (716) 898‑2840
Group practices
Medicare enrollment lists Merrie W. Oei as a member of this group (CMS data updated October 2, 2026).
- Great Lakes Medical Imaging LLC42 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Cheektowaga
Clinicians with the same Medicare primary specialty in Cheektowaga, NY — not a recommendation.
Other clinicians in Great Lakes Medical Imaging LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2015 (11 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1801247713 |
| 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
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- 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