Diane Cynn, PSY.D.
NPI 1467533216 · Clinical Psychologist · Brookline, MA
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diane Cynn, PSY.D. is a Clinical Psychologist provider in Brookline, MA (NPI 1467533216).
Provider details
- NPI number
- 1467533216
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PSY.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 8641 (MA)
Specialties & taxonomies
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
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
- 2006-10-18
- Last updated
- 2022-01-07
- Certified
- 2022-01-07
Frequently asked questions
- What is Diane Cynn's NPI number?
- Diane Cynn's National Provider Identifier (NPI) is 1467533216, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diane Cynn's specialty?
- Diane Cynn is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Diane Cynn located?
- Diane Cynn's practice location on file with NPPES is 1693 Beacon St Ste 1f, Brookline, MA 02445-4467.
- What is Diane Cynn's phone number?
- The practice phone number listed in the NPPES registry for Diane Cynn is (617) 935-1655.
- Does Diane Cynn accept Medicare?
- Diane Cynn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diane Cynn's NPI active?
- Yes — Diane Cynn's NPI (1467533216) is active in the NPPES registry as of the last update on 2022-01-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.