Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. James H Williams, MD PHD

Critical Care Medicine (Anesthesiology) Physician in Chapel Hill, NC · enumerated 2005.

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

National Provider Identifier

1740261866

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Registry record

Entity type Individual (Type 1)

Name Dr. James H Williams

Credential MD PHD

Sex Male

Practice address N2198 Unc Hospitals, Cb# 7010 Department of Anesthesiology,, Chapel Hill, NC, 27599

Phone (919) 966-5136

Fax (984) 974-4873

Enumeration date Nov 7, 2005

Last updated in NPPES Oct 7, 2016

Taxonomy & licenses

207LC0200X Critical Care Medicine (Anesthesiology) Physician Allopathic & Osteopathic Physicians · License 219274 (MA) Primary

Other identifiers

Identifier	Type	State	Issuer
468983	Other	MA	TUFTS HEALTH PLAN
2033780	Medicaid	MA	-
J27130	Other	MA	BCBS MA

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 James Williams?

James Williams is registered in NPPES with the primary taxonomy of Critical Care Medicine (Anesthesiology) 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 2016-10-07.