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William O'Neal Griffin, MD

Internal Medicine Physician in Opelika, AL · enumerated 2018 · practices at Internal Medicine Lab..

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

National Provider Identifier

1336646892

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Registry record

Entity type Individual (Type 1)
Name William O'Neal Griffin
Credential MD
Sex Male
Practice address 121 N 20th St Ste 6, Opelika, AL, 36801
Phone (334) 749-3385
Enumeration date Apr 11, 2018
Last updated in NPPES Sep 20, 2021

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 38873 (AL) 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.

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Frequently asked questions

How do I verify William Griffin's NPI record?
Cross-check NPI 1336646892 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1336646892 active?
Yes, as of the latest NPPES snapshot, NPI 1336646892 is active (record last updated 2021-09-20).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-09-20.