NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

William Louis Neumann, M.D.

Anatomic Pathology & Clinical Pathology Physician in Harlingen, TX · enumerated 2010.

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

National Provider Identifier

1487960969

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name William Louis Neumann
Credential M.D.
Sex Male
Practice address 512 Victoria Ln Ste 2, Harlingen, TX, 78550
Phone (956) 365-4400
Fax (956) 365-4111
Enumeration date Aug 23, 2010
Last updated in NPPES May 16, 2023

Taxonomy & licenses

207ZP0102X Anatomic Pathology & Clinical Pathology Physician Allopathic & Osteopathic Physicians · License N3939 (TX) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 Neumann practice?
The practice location on file with NPPES is in Harlingen, TX. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for William Neumann?
The National Provider Identifier (NPI) for William Neumann is 1487960969, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-05-16.