Rebecca Walker-Mackellar
NPI 1518512177 · Professional Counselor · Lawrence, MA
Enrolled with Medicare as Order and Referring Only - Mental Health Counselor · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Rebecca Walker-Mackellar is a Professional Counselor provider in Lawrence, MA (NPI 1518512177).
Provider details
- NPI number
- 1518512177
- Entity type
- Individual
- Primary specialty
- Professional CounselorBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 10130 Mallard Creek Rd Ste 300Charlotte, NC 28262-6001Phone: (704) 850-6479
Registry dates
- Enumerated
- 2019-08-09
- Last updated
- 2026-06-01
- Certified
- 2026-06-01
Frequently asked questions
- What is Rebecca Walker-Mackellar's NPI number?
- Rebecca Walker-Mackellar's National Provider Identifier (NPI) is 1518512177, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Rebecca Walker-Mackellar's specialty?
- Rebecca Walker-Mackellar is listed in the NPPES registry with a primary specialty of Professional Counselor (Behavioral Health & Social Service Providers).
- Where is Rebecca Walker-Mackellar located?
- Rebecca Walker-Mackellar's practice location on file with NPPES is 360 Merrimack St, Lawrence, MA 01843-1740.
- What is Rebecca Walker-Mackellar's phone number?
- The practice phone number listed in the NPPES registry for Rebecca Walker-Mackellar is (978) 687-1617.
- Does Rebecca Walker-Mackellar accept Medicare?
- Rebecca Walker-Mackellar is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Rebecca Walker-Mackellar's NPI active?
- Yes — Rebecca Walker-Mackellar's NPI (1518512177) is active in the NPPES registry as of the last update on 2026-06-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.