Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Margaret Ann Werker, OD

Optometrist in Sarasota, FL · enumerated 2006.

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

National Provider Identifier

1144320748

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Registry record

Entity type Individual (Type 1)

Name Dr. Margaret Ann Werker

Credential OD

Sex Female

Practice address 2020 Cattlemen Rd, Eye Center South Suite 500, Sarasota, FL, 34232

Phone (941) 378-3937

Fax (941) 378-3937

Enumeration date Sep 24, 2006

Last updated in NPPES Jul 11, 2017

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License OPC2294 (FL) Primary

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

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 Margaret Werker's NPI record?

Cross-check NPI 1144320748 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1144320748 active?

Yes, as of the latest NPPES snapshot, NPI 1144320748 is active (record last updated 2017-07-11).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-07-11.