Quick answers
- Does Oscar W. Ni accept Medicare assignment?
- Yes. Medicare's clinician data says Oscar W. Ni 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 Oscar W. Ni see?
- In 2024, CMS data shows 140 Original Medicare patients and 3,560 services for Oscar W. Ni. This counts Original Medicare only and measures volume, not quality.
- What is Oscar W. Ni's NPI number?
- 1427041136. 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 Oscar W. Ni, 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 | 140 |
|---|---|
| Services billed to Medicare | 3,560 |
| Different services or procedures | 16 |
| Participating Medicare provider | Yes |
| Average age of these patients | 71 |
Most frequent services
- Removal of cataract with insertion of prosthetic lens (66984)2,878 services
- Photography of the retina (92250)124 services
- Exam of the internal drainage system of eye (92020)112 services
- Established patient complete exam of visual system (92014)100 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)56 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 cholesterol71%
- High blood pressure68%
- Arthritis46%
- Anxiety34%
- Diabetes29%
- Depression29%
Practice locations
Addresses where Oscar W. Ni is enrolled with Medicare (CMS data updated October 2, 2026).
- 1563 Fall River Ave, Suite 1Seekonk, MA 02771 (508) 336‑0576
Specialties
- Optometryprimary
Other optometrists in Seekonk
Clinicians with the same Medicare primary specialty in Seekonk, MA — not a recommendation.
Clinician information
| Credential | OD |
|---|---|
| Optometry school | New England College Of Optometry |
| Graduation year | 1996 (30 years since optometry school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1427041136 |
| 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