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

Mr. Mark Flynt Cloer Sr., ABOC, NCLE-AC

Contact Lens Fitter in Madison, MS · enumerated 2008.

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

National Provider Identifier

1447403266

Verified

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Registry record

Entity type Individual (Type 1)

Name Mr. Mark Flynt Cloer Sr.

Credential ABOC, NCLE-AC

Sex Male

Practice address Madison, MS, 39110

Phone (601) 856-4053

Enumeration date Oct 23, 2008

Last updated in NPPES Oct 23, 2008

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

Taxonomy & licenses

156FC0801X Contact Lens Fitter Eye and Vision Services Providers Primary

156FX1800X Optician Eye and Vision Services Providers Secondary

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

What specialty is Mark Cloer?

Mark Cloer is registered in NPPES with the primary taxonomy of Contact Lens Fitter. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-10-23.