Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. William Paul Archer Jr., M.D.

Hospitalist Physician in Richardson, TX · enumerated 2006.

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

National Provider Identifier

1801858212

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Registry record

Entity type Individual (Type 1)

Name Dr. William Paul Archer Jr.

Credential M.D.

Sex Male

Practice address 3001 E President George Bush Hwy, Suite 250, Richardson, TX, 75082

Phone (214) 343-6663

Fax (214) 343-2814

Enumeration date Apr 3, 2006

Last updated in NPPES Jan 26, 2017

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License L6268 (TX) Secondary

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License L6268 (TX) 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
157800701	Medicaid	TX	-

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 Archer?

William Archer is registered in NPPES with the primary taxonomy of Hospitalist 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 2017-01-26.