Quick answers
- Does Warren A. Marranca accept Medicare assignment?
- Yes. Medicare's clinician data says Warren A. Marranca 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 Warren A. Marranca see?
- In 2024, CMS data shows 25 Original Medicare patients and 133 services for Warren A. Marranca. This counts Original Medicare only and measures volume, not quality.
- What is Warren A. Marranca's NPI number?
- 1770780793. 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 Warren A. Marranca, 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 | 25 |
|---|---|
| Services billed to Medicare | 133 |
| Different services or procedures | 1 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Chiropractic manipulative treatment, 3-4 spinal regions (98941)133 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%
- Arthritis44%
Practice locations
Addresses where Warren A. Marranca is enrolled with Medicare (CMS data updated October 2, 2026).
- 10158 Niagara Falls BlvdNiagara Falls, NY 14304 (716) 298‑0368
- 2283 Grand Island BlvdGrand Island, NY 14072 (716) 773‑2222
Group practices
Medicare enrollment lists Warren A. Marranca as a member of this group (CMS data updated October 2, 2026).
- Grand Island Chiropractic PC6 clinicians in the group
Specialties
- Chiropracticprimary
Other chiropractors in Niagara Falls
Clinicians with the same Medicare primary specialty in Niagara Falls, NY — not a recommendation.
Other clinicians in Grand Island Chiropractic PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DC |
|---|---|
| Chiropractic college | New York Chiropractic College |
| Graduation year | 2002 (24 years since chiropractic college) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1770780793 |
| 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