Quick answers
- Does Neil F. Mariados accept Medicare assignment?
- Yes. Medicare's clinician data says Neil F. Mariados 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 Neil F. Mariados see?
- In 2024, CMS data shows 49 Original Medicare patients and 338 services for Neil F. Mariados. This counts Original Medicare only and measures volume, not quality.
- What is Neil F. Mariados's NPI number?
- 1043204621. 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 Neil F. Mariados, 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 | 49 |
|---|---|
| Services billed to Medicare | 338 |
| Different services or procedures | 13 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Ct guidance for insertion of radiation therapy fields (77014)130 services
- Intensity modulated treatment delivery, single or multiple fields/arcs,via narrow spatially and temporally modulated beams, binary, dynamic mlc, per treatment session (G6015)130 services
- Radiation treatment management, 5 treatment sessions (77427)27 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%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)75%
- Arthritis57%
- Diabetes43%
- Ischemic heart disease31%
Practice locations
Addresses where Neil F. Mariados is enrolled with Medicare (CMS data updated October 2, 2026).
- 3850 Saunders Settlement RdSanborn, NY 14132 (716) 898‑2800
Group practices
Medicare enrollment lists Neil F. Mariados as a member of this group (CMS data updated October 2, 2026).
- Great Lakes Physician PC66 clinicians in the group
Specialties
- Radiation Oncologyprimary
Other radiation oncologists in New York
Clinicians with the same Medicare primary specialty in New York — not a recommendation.
Other clinicians in Great Lakes Physician PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1989 (37 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1043204621 |
| 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
- 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