NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Demion R Cornwall, DDS

General Practice Dentistry in Laplata, MD · enumerated 2012 · practices at O W John & Assc.

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

National Provider Identifier

1982965711

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Demion R Cornwall
Credential DDS
Sex Male
Practice address 6620 Crain Hwy, Suite 204, Laplata, MD, 20646
Phone (301) 870-3966
Fax (301) 753-1992
Enumeration date Jun 7, 2012
Last updated in NPPES Jun 7, 2012

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 13699 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Demion Cornwall practice?
The practice location on file with NPPES is in Laplata, MD. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Demion Cornwall?
The National Provider Identifier (NPI) for Demion Cornwall is 1982965711, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-06-07.