Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Mark James Mayson, MD

Pulmonary Disease Physician in Columbia, SC · enumerated 2006.

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

National Provider Identifier

1962480889

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Registry record

Entity type Individual (Type 1)

Name Mr. Mark James Mayson

Credential MD

Sex Male

Practice address 1333 Taylor St, Suite 4-G, Columbia, SC, 29201

Phone (803) 296-3273

Fax (803) 296-7061

Enumeration date Jan 3, 2006

Last updated in NPPES Feb 19, 2021

Taxonomy & licenses

207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License 15931 (SC) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
159312	Medicaid	SC	-
F089605771	Other	SC	MEDICARE PTAN

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 1962480889 active?

Yes, as of the latest NPPES snapshot, NPI 1962480889 is active (record last updated 2021-02-19).

How do I verify Mark Mayson's NPI record?

Cross-check NPI 1962480889 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-02-19.