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

Gregory Walker MD

Organization Internal Medicine Physician · NPI 1326266594

Gregory Walker MD is an Internal Medicine Physician in Baltimore, Maryland. Registered with an NPI since 2007.

In the registry since
2007

Practice location Address checks out

3333 N Calvert St Ste 540
Baltimore, MD 21218-2867
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

Record details

NPI number1326266594
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Gregory Walker — Owner · (410) 235-8858
NPI enumeratedApril 23, 2007
Last updated in NPPESAugust 16, 2011
Mailing address3333 N Calvert St, Suite 540, Baltimore, MD 21218-2867

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