Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. William Joseph Griffin Jr., DMD
Dentist in Hazel Green, AL · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1376662155
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Registry record
Entity type Individual (Type 1)
Name Dr. William Joseph Griffin Jr.
Credential DMD
Sex Male
Practice address 13596 Highway 231 431 N, Suite 6, Hazel Green, AL, 35750
Phone (256) 828-8980
Fax (256) 828-8668
Enumeration date Mar 29, 2007
Last updated in NPPES Aug 14, 2013
Taxonomy & licenses
DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees.
About the DMD 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.
Frequently asked questions
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.
What specialty is William Griffin?
William Griffin is registered in NPPES with the primary taxonomy of Dentist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Hazel Green Primary Care Adult Medicine Physician · Hazel Green, AL NPI 1578645396 John Boyle Chiropractor · Hazel Green, AL NPI 1710019468 Hazel Green Chiropractic, Inc. Chiropractor · Hazel Green, AL NPI 1770763047 Hh Physician Care Hazel Green Family Medicine Physician · Hazel Green, AL NPI 1205229887
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-08-14.