Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

David E Harmon Jr DDS Msd PA

Dentist in Mitchellville, MD · enumerated 2006 · authorized official David Harmon, Orthodontist Owner.

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

National Provider Identifier

1699842971

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)

Legal business name David E Harmon Jr DDS Msd PA

Practice address 10264 Lake Arbor Way, Mitchellville, MD, 20721

Phone (301) 333-3900

Fax (301) 333-3239

Enumeration date Nov 29, 2006

Last updated in NPPES Aug 22, 2020

Taxonomy & classification

122300000X Dentist Dental Providers · License 11886 (MD) Primary

Authorized official

Name David Harmon

Title Orthodontist Owner

Phone (301) 333-3900

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.

Read the full guide → Validate an NPI →

Frequently asked questions

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2020-08-22. Verify at npiregistry.cms.hhs.gov.

Where is David E Harmon Jr DDS Msd PA located?

The practice location on file with NPPES is in Mitchellville, MD.

Providers at this address

Browse all →

David Harmon Orthodontics and Dentofacial Orthopedics Dentistry · Mitchellville, MD NPI 1629363155

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-22.