Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. John Gassaway Mohler III, DDS

General Practice Dentistry in Catonsville, MD · enumerated 2011 · practices at John R Baronas Dmd PA.

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

National Provider Identifier

1780968685

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. John Gassaway Mohler III

Credential DDS

Sex Male

Practice address 1122 N Rolling Rd, Catonsville, MD, 21228

Phone (410) 747-2229

Enumeration date Oct 11, 2011

Last updated in NPPES Oct 11, 2011

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 14021 (MD) Primary

DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential

Other identifiers

Identifier	Type	State	Issuer
14021	Other	MD	MARYLAND DENTAL LICENSE

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

Is NPI 1780968685 active?

Yes, as of the latest NPPES snapshot, NPI 1780968685 is active (record last updated 2011-10-11).

How do I verify John Mohler's NPI record?

Cross-check NPI 1780968685 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

John R Baronas Dmd PA General Practice Dentistry · Catonsville, MD NPI 1154421782 John Baronas General Practice Dentistry · Catonsville, MD NPI 1902145840

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-10-11.