Alison Mostyn, LICSW
NPI 1518112226 · Social Worker · Boston, MA
Alison Mostyn, LICSW is a Social Worker provider in Boston, MA (NPI 1518112226).
Provider details
- NPI number
- 1518112226
- Entity type
- Individual
- Primary specialty
- Social WorkerBehavioral Health & Social Service Providers
- Credential
- LICSW
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Social Worker104100000X
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
17 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2008-11-21
- Last updated
- 2019-06-07
Frequently asked questions
- What is Alison Mostyn's NPI number?
- Alison Mostyn's National Provider Identifier (NPI) is 1518112226, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alison Mostyn's specialty?
- Alison Mostyn is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).
- Where is Alison Mostyn located?
- Alison Mostyn's practice location on file with NPPES is 300 Longwood Ave, Boston, MA 02115-5724.
- What is Alison Mostyn's phone number?
- The practice phone number listed in the NPPES registry for Alison Mostyn is (617) 919-3192.
- Is Alison Mostyn's NPI active?
- Yes — Alison Mostyn's NPI (1518112226) is active in the NPPES registry as of the last update on 2019-06-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.