James Leone, PH.D., CGP
NPI 1164579264 · Psychologist · Cambridge, MA
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Leone, PH.D., CGP is a Psychologist provider in Cambridge, MA (NPI 1164579264).
Provider details
- NPI number
- 1164579264
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D., CGP
- Sex
- Male
- Sole proprietor
- Yes
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
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
- 2007-01-04
- Last updated
- 2007-07-08
Frequently asked questions
- What is James Leone's NPI number?
- James Leone's National Provider Identifier (NPI) is 1164579264, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Leone's specialty?
- James Leone is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is James Leone located?
- James Leone's practice location on file with NPPES is 875 Massachusetts Ave, Cambridge, MA 02139-3067.
- What is James Leone's phone number?
- The practice phone number listed in the NPPES registry for James Leone is (617) 547-8135.
- Does James Leone accept Medicare?
- James Leone is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Leone's NPI active?
- Yes — James Leone's NPI (1164579264) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.