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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. William Paul Long, M.D.

Dermatopathology (Pathology) Physician in Gretna, LA · enumerated 2007.

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

National Provider Identifier

1043368723

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Registry record

Entity type Individual (Type 1)
Name Dr. William Paul Long
Credential M.D.
Sex Male
Practice address Gretna, LA, 70056
Phone (504) 361-3757
Fax (504) 361-3132
Enumeration date Jan 8, 2007
Last updated in NPPES Jun 15, 2012

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207ZD0900X Dermatopathology (Pathology) Physician Allopathic & Osteopathic Physicians · License 023755 (LA) Primary
207ZP0102X Anatomic Pathology & Clinical Pathology Physician Allopathic & Osteopathic Physicians · License 023755 (LA) Secondary
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
1488437 Medicaid LA -
04930021 Medicaid MS -

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

Where does William Long practice?
The practice location on file with NPPES is in Gretna, LA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for William Long?
The National Provider Identifier (NPI) for William Long is 1043368723, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-06-15.