Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Gregory Leroy Walker, MD

Individual provider Internal Medicine Physician · NPI 1366508301

Dr. Gregory Leroy Walker, MD is an Internal Medicine Physician in Baltimore, Maryland. Practices as a sole proprietor. Licensed in Maryland.

Licensed in
MD
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

3333 N Calvert St Ste 585
Baltimore, MD 21218-6514
Phone: (410) 235-8858
Fax: (410) 235-8904
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence D0025662 (MD)

Record details

NPI number1366508301
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedDecember 27, 2006
Last updated in NPPESNovember 19, 2021
Certification dateNovember 19, 2021
Mailing address3333 N Calvert St Ste 585, Baltimore, MD 21218-6514

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