Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mark Thomas Carlton, D.D.S

Dentist in Laurium, MI · enumerated 2006 · practices at Sally D. Orr, D.D.S., P.C..

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

National Provider Identifier

1689625790

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Registry record

Entity type Individual (Type 1)

Name Dr. Mark Thomas Carlton

Credential D.D.S

Sex Male

Practice address 77 3rd St, Laurium, MI, 49913

Phone (906) 337-0444

Fax (906) 337-1908

Enumeration date May 13, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

122300000X Dentist Dental Providers · License 12650 (MI) Primary

DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential

Other identifiers

Identifier	Type	State	Issuer
4836909	Medicaid	MI	-

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.

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Frequently asked questions

How do I verify Mark Carlton's NPI record?

Cross-check NPI 1689625790 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1689625790 active?

Yes, as of the latest NPPES snapshot, NPI 1689625790 is active (record last updated 2007-07-08).

Other providers at this practice address

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Sally D. Orr, D.D.S., P.C. Dentist · Laurium, MI NPI 1073563169

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.