Glenn Mazzone, PHD
NPI 1376403378 · Cognitive & Behavioral Psychologist · Watertown, MA
Glenn Mazzone, PHD is a Cognitive & Behavioral Psychologist provider in Watertown, MA (NPI 1376403378).
Provider details
- NPI number
- 1376403378
- Entity type
- Individual
- Primary specialty
- Cognitive & Behavioral PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Male
- Sole proprietor
- No
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
Under 1 yr in 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
- 2025-11-13
- Last updated
- 2025-11-13
- Certified
- 2025-11-13
Frequently asked questions
- What is Glenn Mazzone's NPI number?
- Glenn Mazzone's National Provider Identifier (NPI) is 1376403378, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Glenn Mazzone's specialty?
- Glenn Mazzone is listed in the NPPES registry with a primary specialty of Cognitive & Behavioral Psychologist (Behavioral Health & Social Service Providers).
- Where is Glenn Mazzone located?
- Glenn Mazzone's practice location on file with NPPES is 40 Spring St Ste 215, Watertown, MA 02472-3474.
- What is Glenn Mazzone's phone number?
- The practice phone number listed in the NPPES registry for Glenn Mazzone is (617) 299-9956.
- Is Glenn Mazzone's NPI active?
- Yes — Glenn Mazzone's NPI (1376403378) is active in the NPPES registry as of the last update on 2025-11-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.