Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Howard J Ludington III, DDS MSCD
Endodontics in Portsmouth, NH · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1548463714
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Registry record
Entity type Individual (Type 1)
Name Dr. Howard J Ludington III
Credential DDS MSCD
Sex Male
Practice address 288 Lafayette Rd, Suite A, Portsmouth, NH, 03801
Phone (603) 436-6400
Fax (603) 427-2597
Enumeration date Jun 6, 2007
Last updated in NPPES Jul 8, 2007
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
What is the NPI number for Howard Ludington?
The National Provider Identifier (NPI) for Howard Ludington is 1548463714, a Type 1 (individual) record in the CMS NPPES registry.
Where does Howard Ludington practice?
The practice location on file with NPPES is in Portsmouth, NH. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.