Alexandra Grannan, LICSW
NPI 1245740257 · Clinical Social Worker · Boston, MA
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alexandra Grannan, LICSW is a Clinical Social Worker provider in Boston, MA (NPI 1245740257).
Provider details
- NPI number
- 1245740257
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LICSW
- Sex
- Female
- Sole proprietor
- No
- License
- 124278 (MA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Clinical Social Worker1041C0700X
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
8 yrs in NPPES registry
- Profile completeness38% of score
100% 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)
- 800 Lexington StreetWaltham Plaza 1070Waltham, MA 02451Phone: (617) 520-4115
Registry dates
- Enumerated
- 2017-10-04
- Last updated
- 2024-08-20
- Certified
- 2024-08-15
Frequently asked questions
- What is Alexandra Grannan's NPI number?
- Alexandra Grannan's National Provider Identifier (NPI) is 1245740257, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alexandra Grannan's specialty?
- Alexandra Grannan is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Alexandra Grannan located?
- Alexandra Grannan's practice location on file with NPPES is 221 Longwood Ave, Boston, MA 02115-5804.
- What is Alexandra Grannan's phone number?
- The practice phone number listed in the NPPES registry for Alexandra Grannan is (617) 278-0341.
- Does Alexandra Grannan accept Medicare?
- Alexandra Grannan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alexandra Grannan's NPI active?
- Yes — Alexandra Grannan's NPI (1245740257) is active in the NPPES registry as of the last update on 2024-08-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.