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Dr. John Philip Seisman Jr., DDS

General Practice Dentistry in Lexington Park, MD · enumerated 2012.

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

National Provider Identifier

1497000459

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Registry record

Entity type Individual (Type 1)
Name Dr. John Philip Seisman Jr.
Credential DDS
Sex Male
Practice address 21534 Great Mills Rd, Lexington Park, MD, 20653
Phone (301) 862-3900
Enumeration date Jul 16, 2012
Last updated in NPPES Jun 9, 2013

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 15042 (MD) Primary
DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS 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

Where does John Seisman practice?
The practice location on file with NPPES is in Lexington Park, MD. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for John Seisman?
The National Provider Identifier (NPI) for John Seisman is 1497000459, 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 2013-06-09.