Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. William Thomas Smith, M.D.

Internal Medicine Physician in Winston Salem, NC · enumerated 2006.

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

National Provider Identifier

1558320523

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Registry record

Entity type Individual (Type 1)

Name Dr. William Thomas Smith

Credential M.D.

Sex Male

Practice address 3333 Brookview Hills Blvd, Ste 207, Winston Salem, NC, 27103

Phone (336) 765-5250

Fax (336) 659-0953

Enumeration date Mar 20, 2006

Last updated in NPPES Feb 23, 2010

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 9700765 (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
2130018	Other	NC	CIGNA
110166994	Other	NC	RR MEDICARE
D1821	Other	NC	MEDCOST
0401990	Other	NC	UNITED HEALTHCARE
891033W	Medicaid	NC	-
010803427	Other	NC	PHCS
1033W	Other	NC	BLUE CROSS BLUE SHIELD 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.

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Frequently asked questions

Is NPI 1558320523 active?

Yes, as of the latest NPPES snapshot, NPI 1558320523 is active (record last updated 2010-02-23).

How do I verify William Smith's NPI record?

Cross-check NPI 1558320523 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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Steven Klein Internal Medicine Physician · Winston-Salem, NC NPI 1144224890 Patricia Klein Medical Physician Assistant · Winston-Salem, NC NPI 1184628745 Louis Valente Medical Physician Assistant · Winston-Salem, NC NPI 1306840962 David Collins Internal Medicine Physician · Winston-Salem, NC NPI 1962407072 Robert Toborg Family Medicine Physician · Winston-Salem, NC NPI 1003813650 Lauren Gandhi Dermatology Physician · Winston Salem, NC NPI 1447257092 Stephanie Pickett Adult Health Nurse Practitioner · Winston-Salem, NC NPI 1598740839 Forsyth Memorial Hospital Inc Internal Medicine Physician · Winston Salem, NC NPI 1851371066

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-02-23.