Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.

Dr Harry Klapper, DDS, PA

Organization Dentist · NPI 1124462536

Dr Harry Klapper, DDS, PA provides Dentist services 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 Not confirmed with CMS for 13 years — call before visiting
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