Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Oscar W Ni, O.D.

Corneal and Contact Management Optometrist in Seekonk, MA · enumerated 2005.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1427041136

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Registry record

Entity type Individual (Type 1)

Name Dr. Oscar W Ni

Credential O.D.

Sex Male

Practice address Seekonk, MA, 02771

Phone (508) 336-0576

Fax (508) 916-3752

Enumeration date Aug 26, 2005

Last updated in NPPES Jan 27, 2023

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

152WC0802X Corneal and Contact Management Optometrist Eye and Vision Services Providers · License MA 4010 (MA) Primary

OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses. About the OD credential

Other identifiers

Identifier	Type	State	Issuer
2089824	Other	MA	FIRST HEALTH
0312541	Medicaid	MA	-
402686	Other	RI	BLUECHIP RI
152355	Other	MA	HARVARD PILGRIM
20568-1	Other	RI	BCBS RI
2200361	Other	MA	UNITED HEALTHCARE
3011179	Other	MA	AETNA
48668	Other	MA	DAVIS VISION
W16125	Other	MA	BCBS MA
03693	Other	MA	SPECTERA VISION PLAN
B211081001	Other	MA	CIGNA

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

How do I verify Oscar Ni's NPI record?

Cross-check NPI 1427041136 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1427041136 active?

Yes, as of the latest NPPES snapshot, NPI 1427041136 is active (record last updated 2023-01-27).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-01-27.