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

Dr. Eleanor Siri, OD

Optometrist in Cambridge, MD · enumerated 2012.

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

National Provider Identifier

1326397555

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Registry record

Entity type Individual (Type 1)
Name Dr. Eleanor Siri
Credential OD
Sex Female
Practice address Cambridge, MD, 21613
Phone (443) 225-5377
Fax (833) 940-2191
Enumeration date Sep 4, 2012
Last updated in NPPES Dec 8, 2023

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

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License TA2601 (MD) 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
036061400 Medicaid DC -

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Eleanor Siri practice?
The practice location on file with NPPES is in Cambridge, MD. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Eleanor Siri?
The National Provider Identifier (NPI) for Eleanor Siri is 1326397555, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-12-08.