Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Hannah Glezen Calvelli, OD

Optometrist in Portland, ME · enumerated 2020.

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

National Provider Identifier

1205455847

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Registry record

Entity type Individual (Type 1)

Name Hannah Glezen Calvelli

Credential OD

Sex Female

Practice address 15 Lowell St, Portland, ME, 04102

Phone (207) 523-5388

Fax (207) 523-5310

Enumeration date Apr 14, 2020

Last updated in NPPES Oct 12, 2023

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 0618002884 (VA) Secondary

152W00000X Optometrist Eye and Vision Services Providers · License OPT1047 (ME) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1205455847 active?

Yes, as of the latest NPPES snapshot, NPI 1205455847 is active (record last updated 2023-10-12).

How do I verify Hannah Calvelli's NPI record?

Cross-check NPI 1205455847 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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Robert Cady Glaucoma Specialist (Ophthalmology) Physician · Portland, ME NPI 1174529564 Frank Read Ophthalmology Physician · Portland, ME NPI 1295731677 Frederick Miller Ophthalmology Physician · Portland, ME NPI 1376549402 John Walters Optometrist · Portland, ME NPI 1689670762 Charles Zacks Ophthalmology Physician · Portland, ME NPI 1790781839 Nirupama Aggarwal Optometrist · Portland, ME NPI 1871599928 Peter Hedstrom Ophthalmology Physician · Portland, ME NPI 1902802028 Jill Amundson Optometrist · Portland, ME NPI 1710983861

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-10-12.