Lynwood Mccassie
NPI 1134597867 · Psychologist · Boston, MA
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lynwood Mccassie is a Psychologist provider in Boston, MA (NPI 1134597867).
Provider details
- NPI number
- 1134597867
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Mental Health Counselor101YM0800X
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
10 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
- 2015-09-11
- Last updated
- 2016-09-03
Frequently asked questions
- What is Lynwood Mccassie's NPI number?
- Lynwood Mccassie's National Provider Identifier (NPI) is 1134597867, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lynwood Mccassie's specialty?
- Lynwood Mccassie is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is Lynwood Mccassie located?
- Lynwood Mccassie's practice location on file with NPPES is 1601 Washington St, Boston, MA 02118-1951.
- What is Lynwood Mccassie's phone number?
- The practice phone number listed in the NPPES registry for Lynwood Mccassie is (617) 425-2000.
- Does Lynwood Mccassie accept Medicare?
- Lynwood Mccassie is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lynwood Mccassie's NPI active?
- Yes — Lynwood Mccassie's NPI (1134597867) is active in the NPPES registry as of the last update on 2016-09-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.