Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mr. Joseph William Dwyer, MSW
Social Worker in Hagerstown, MD · enumerated 2022.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1396406807
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Registry record
Entity type Individual (Type 1)
Name Mr. Joseph William Dwyer
Credential MSW
Sex Male
Practice address 686 Pennsylvania Ave, Hagerstown, MD, 21740
Phone (301) 988-6266
Enumeration date Jan 6, 2022
Last updated in NPPES Jan 6, 2022
Taxonomy & licenses
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
Where does Joseph Dwyer practice?
The practice location on file with NPPES is in Hagerstown, MD. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Joseph Dwyer?
The National Provider Identifier (NPI) for Joseph Dwyer is 1396406807, 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 2022-01-06.