Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr Harry Klapper, DDS, PA

Organization Dentist · NPI 1124462536

Dr Harry Klapper, DDS, PA is a Dentist in Largo, Maryland. Licensed in Maryland. Registered with an NPI since 2013.

Licensed in
MD
In the registry since
2013
What do these letters mean?
PA — Professional association
A form of business registration, not a clinical qualification.

See every abbreviation used in this directory →

Practice location Address checks out

1300 Mercantile Ln Ste 100E
Largo, MD 20774
Phone: (301) 773-4177
Fax: (301) 773-9626
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Dentist (primary) Taxonomy 122300000X · Licence 3977 (MD)

Record details

NPI number1124462536
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Harry Klapper — Owner · (240) 461-1262
NPI enumeratedApril 29, 2013
Last updated in NPPESApril 29, 2013
Mailing address5749 Crain Hwy, Upper Marlboro, MD 20772-4121