OrganizationActive
Dr. Harry Klapper, DDS, PA
NPI 1124462536 · Dentist · Largo, MD
Dr. Harry Klapper, DDS, PA is a Dentist organization in Largo, MD (NPI 1124462536).
Provider details
- NPI number
- 1124462536
- Entity type
- Organization
- Primary specialty
- DentistDental Providers
- Organization subpart
- No
- Authorized official
- Harry Klapper, Owner(240) 461-1262
- License
- 3977 (MD)
Specialties & taxonomies
Dental Providers
Profile Score
Detailed profile(78/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
13 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
1300 Mercantile Lane
Suite 100e
Largo, MD 20774
Phone: (301) 773-4177
Fax: (301) 773-9626
Street-level locationGet directions
Mailing address
5749 Crain Hwy
Upper Marlboro, MD 20772-4121
Registry dates
- Enumerated
- 2013-04-29
- Last updated
- 2013-04-29
Frequently asked questions
- What is Dr. Harry Klapper, DDS, PA's NPI number?
- Dr. Harry Klapper, DDS, PA's National Provider Identifier (NPI) is 1124462536, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Dr. Harry Klapper, DDS, PA?
- Dr. Harry Klapper, DDS, PA is classified in the NPPES registry as Dentist (Dental Providers).
- Where is Dr. Harry Klapper, DDS, PA located?
- Dr. Harry Klapper, DDS, PA's practice location on file with NPPES is 1300 Mercantile Lane, Largo, MD 20774.
- What is Dr. Harry Klapper, DDS, PA's phone number?
- The practice phone number listed in the NPPES registry for Dr. Harry Klapper, DDS, PA is (301) 773-4177.
- Who is the authorized official for Dr. Harry Klapper, DDS, PA?
- The authorized official listed on Dr. Harry Klapper, DDS, PA's NPPES record is Harry Klapper, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Dr. Harry Klapper, DDS, PA's NPI active?
- Yes — Dr. Harry Klapper, DDS, PA's NPI (1124462536) is active in the NPPES registry as of the last update on 2013-04-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.