Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. William C. Carter III, M.D..

Urology Physician in Charleston, SC · enumerated 2005.

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

National Provider Identifier

1558348482

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Registry record

Entity type Individual (Type 1)

Name Dr. William C. Carter III

Credential M.D..

Sex Male

Practice address 125 Doughty St, Suite 380, Charleston, SC, 29403

Phone (843) 577-9530

Fax (843) 805-6240

Enumeration date Dec 30, 2005

Last updated in NPPES Feb 17, 2017

Taxonomy & licenses

208800000X Urology Physician Allopathic & Osteopathic Physicians · License 7869 (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
GP1702	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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is William Carter?

William Carter is registered in NPPES with the primary taxonomy of Urology Physician. 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-02-17.