Gregory Walker MD
NPI 1326266594 · Internal Medicine Physician · Baltimore, MD
Gregory Walker MD is a Internal Medicine Physician organization in Baltimore, MD (NPI 1326266594).
Provider details
- NPI number
- 1326266594
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Gregory Walker, Owner(410) 235-8858
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-04-23
- Last updated
- 2011-08-16
Frequently asked questions
- What is Gregory Walker MD's NPI number?
- Gregory Walker MD's National Provider Identifier (NPI) is 1326266594, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Gregory Walker MD?
- Gregory Walker MD is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Walker MD located?
- Gregory Walker MD's practice location on file with NPPES is 3333 N Calvert St, Baltimore, MD 21218-2867.
- What is Gregory Walker MD's phone number?
- The practice phone number listed in the NPPES registry for Gregory Walker MD is (410) 235-8858.
- Who is the authorized official for Gregory Walker MD?
- The authorized official listed on Gregory Walker MD's NPPES record is Gregory Walker, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Gregory Walker MD's NPI active?
- Yes — Gregory Walker MD's NPI (1326266594) is active in the NPPES registry as of the last update on 2011-08-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.