Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Michael Barkley, LDO

Optician in Watertown, NY · enumerated 2023.

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

National Provider Identifier

1164107199

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Registry record

Entity type Individual (Type 1)

Name Michael Barkley

Credential LDO

Sex Male

Practice address 20823 Nys Rte 3, Watertown, NY, 13601

Phone (315) 788-1570

Fax (315) 788-0910

Enumeration date Jun 19, 2023

Last updated in NPPES Jun 19, 2023

Taxonomy & licenses

156FX1800X Optician Eye and Vision Services Providers · License 007903 (NY) Primary

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 1164107199 active?

Yes, as of the latest NPPES snapshot, NPI 1164107199 is active (record last updated 2023-06-19).

How do I verify Michael Barkley's NPI record?

Cross-check NPI 1164107199 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 2023-06-19.