Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. William Reginald Sigmon Jr., M.D.

Radiation Oncology Physician in Hickory, NC · enumerated 2007.

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

National Provider Identifier

1750439519

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Registry record

Entity type Individual (Type 1)

Name Dr. William Reginald Sigmon Jr.

Credential M.D.

Sex Male

Practice address 810 Fairgrove Church Rd, Hickory, NC, 28602

Phone (828) 326-3856

Fax (828) 326-2461

Enumeration date Jan 8, 2007

Last updated in NPPES Jul 3, 2013

Taxonomy & licenses

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License 32862 (NC) 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
890266B	Medicaid	NC	-

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

Where does William Sigmon practice?

The practice location on file with NPPES is in Hickory, NC. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for William Sigmon?

The National Provider Identifier (NPI) for William Sigmon is 1750439519, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-07-03.