Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Meredith Lynn Alfred Carlson, OD

Optometrist in Portsmouth, NH · enumerated 2023.

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

National Provider Identifier

1679353247

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Registry record

Entity type Individual (Type 1)

Name Meredith Lynn Alfred Carlson

Credential OD

Sex Female

Practice address 150 Griffin Rd Ste 3, Portsmouth, NH, 03801

Phone (603) 766-4548

Enumeration date Oct 2, 2023

Last updated in NPPES Feb 26, 2026

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 5672 (MA) 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 1679353247 active?

Yes, as of the latest NPPES snapshot, NPI 1679353247 is active (record last updated 2026-02-26).

How do I verify Meredith Alfred Carlson's NPI record?

Cross-check NPI 1679353247 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-02-26.