NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

J G Johnson, DO

Emergency Medicine Physician in Trenton, MI · enumerated 2007.

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

National Provider Identifier

1427257096

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name J G Johnson
Credential DO
Sex Male
Practice address 5450 Fort St, Oakwood Southshore Medical Center, Trenton, MI, 48183
Enumeration date Jul 13, 2007
Last updated in NPPES Sep 19, 2023

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License DO165177 (OR) Secondary
207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 5101017215 (MI) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO 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

What is the NPI number for J Johnson?
The National Provider Identifier (NPI) for J Johnson is 1427257096, a Type 1 (individual) record in the CMS NPPES registry.
Where does J Johnson practice?
The practice location on file with NPPES is in Trenton, MI. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-09-19.