NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Glen Edward Johnson, MD

Internal Medicine Physician in Baltimore, MD · enumerated 2005.

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

National Provider Identifier

1730173675

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Registry record

Entity type Individual (Type 1)
Name Glen Edward Johnson
Credential MD
Sex Male
Practice address Baltimore, MD, 21228
Fax (470) 744-3817
Enumeration date Sep 7, 2005
Last updated in NPPES Jan 25, 2017

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License D19558 (MD) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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.

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Frequently asked questions

Where does Glen Johnson practice?
The practice location on file with NPPES is in Baltimore, MD. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Glen Johnson?
The National Provider Identifier (NPI) for Glen Johnson is 1730173675, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-01-25.