Quick answers
- Does Samuel R. Sirianni accept Medicare assignment?
- Yes. Medicare's clinician data says Samuel R. Sirianni 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 Samuel R. Sirianni see?
- In 2024, CMS data shows 250 Original Medicare patients and 525 services for Samuel R. Sirianni. This counts Original Medicare only and measures volume, not quality.
- What is Samuel R. Sirianni's NPI number?
- 1508933581. 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 Samuel R. Sirianni, 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 | 250 |
|---|---|
| Services billed to Medicare | 525 |
| Different services or procedures | 15 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)252 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)125 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)63 services
- Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and (G0180)19 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)16 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%
- Arthritis55%
- Ischemic heart disease34%
- Diabetes33%
- Anxiety28%
Hospitals where Samuel R. Sirianni works
Medicare's Facility Affiliation Data lists Samuel R. Sirianni 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.
- Kaleida HealthBuffalo, NY · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 330005
- Kenmore Mercy HospitalKenmore, NY · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 330102
- Mount St. Mary's Hospital & Health CenterLewiston, NY · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 330188
- Niagara Falls Memorial Medical CenterNiagara Falls, NY · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 330065
- Sisters of Charity HospitalBuffalo, NY · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 330078
Practice locations
Addresses where Samuel R. Sirianni is enrolled with Medicare (CMS data updated October 2, 2026).
- 144 Genesee StBuffalo, NY 14203
- 5290 Military Rd, Suite 8Lewiston, NY 14092 (716) 298‑3000
- 5300 Military RdLewiston, NY 14092 (716) 297‑4800
Group practices
Medicare enrollment lists Samuel R. Sirianni as a member of this group (CMS data updated October 2, 2026).
- Mount St. Marys Hospital of Niagara Falls90 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Buffalo
Clinicians with the same Medicare primary specialty in Buffalo, NY — not a recommendation.
Other clinicians in Mount St. Marys Hospital of Niagara Falls
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | State University Of New York At Buffalo School Of Medicine |
| Graduation year | 1985 (41 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1508933581 |
| 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