Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark Macgregor Crabbe, MD

Surgery Physician in Sumter, SC · enumerated 2006.

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

National Provider Identifier

1619921905

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Registry record

Entity type Individual (Type 1)

Name Mark Macgregor Crabbe

Credential MD

Sex Male

Practice address 115 N Sumter St, Ste 300, Sumter, SC, 29150

Phone (803) 775-4655

Fax (803) 775-7258

Enumeration date May 20, 2006

Last updated in NPPES Feb 8, 2024

Taxonomy & licenses

208G00000X Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Allopathic & Osteopathic Physicians · License 15833 (SC) Secondary

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 15833 (SC) Primary

174400000X Specialist Other Service Providers · License 15833 (SC) Secondary

2086S0129X Vascular Surgery Physician Allopathic & Osteopathic Physicians · License 15833 (SC) Secondary

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
158331	Medicaid	SC	-

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

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.

What specialty is Mark Crabbe?

Mark Crabbe is registered in NPPES with the primary taxonomy of Surgery Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-02-08.