NPI Portal NPI Lookup & Verification

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

Linas A. Sidrys, M.D.

Ophthalmology Physician in Chicago Ridge, IL · enumerated 2006 · practices at Advance Vision Care PC.

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

National Provider Identifier

1154407880

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Registry record

Entity type Individual (Type 1)
Name Linas A. Sidrys
Credential M.D.
Sex Male
Practice address Chicago Ridge, IL, 60415
Enumeration date Oct 27, 2006
Last updated in NPPES Dec 22, 2021

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

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 036-058239 (IL) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
05032013 Other IL BLUE CROSS
180009600 Other IL RAILROAD MEDICARE
207W00000X Other IL TAXONOMY CODE
036-058239 Other IL ILLINOIS LCENSE
180046260 Other IL RAILROAD MEDICARE
21629784 Other IL BLUE CROSS

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 Linas Sidrys's NPI record?
Cross-check NPI 1154407880 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1154407880 active?
Yes, as of the latest NPPES snapshot, NPI 1154407880 is active (record last updated 2021-12-22).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-12-22.