Helen Walker, M.D.
NPI 1366533903 · Internal Medicine Physician · Catonsville, MD
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Helen Walker, M.D. is a Internal Medicine Physician provider in Catonsville, MD (NPI 1366533903).
Provider details
- NPI number
- 1366533903
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- D0035105 (MD)
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
- 2006-09-27
- Last updated
- 2015-06-15
Frequently asked questions
- What is Helen Walker's NPI number?
- Helen Walker's National Provider Identifier (NPI) is 1366533903, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Helen Walker's specialty?
- Helen Walker is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Helen Walker located?
- Helen Walker's practice location on file with NPPES is 4 West Rolling Crossroads, Catonsville, MD 21228-5638.
- What is Helen Walker's phone number?
- The practice phone number listed in the NPPES registry for Helen Walker is (410) 869-0100.
- Does Helen Walker accept Medicare?
- Helen Walker is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Helen Walker's NPI active?
- Yes — Helen Walker's NPI (1366533903) is active in the NPPES registry as of the last update on 2015-06-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.