IndividualActive
Giancarlo Leon
NPI 1487360376 · Counselor · Watertown, MA
Giancarlo Leon is a Counselor provider in Watertown, MA (NPI 1487360376).
Provider details
- NPI number
- 1487360376
- Entity type
- Individual
- Primary specialty
- CounselorBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(52/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
3 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
75 N Beacon St
Watertown, MA 02472-2671
Phone: (617) 661-3991
Street-level locationGet directions
Mailing address
75 N Beacon St
Watertown, MA 02472-2671
Registry dates
- Enumerated
- 2023-01-25
- Last updated
- 2023-01-25
- Certified
- 2022-12-16
Frequently asked questions
- What is Giancarlo Leon's NPI number?
- Giancarlo Leon's National Provider Identifier (NPI) is 1487360376, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Giancarlo Leon's specialty?
- Giancarlo Leon is listed in the NPPES registry with a primary specialty of Counselor (Behavioral Health & Social Service Providers).
- Where is Giancarlo Leon located?
- Giancarlo Leon's practice location on file with NPPES is 75 N Beacon St, Watertown, MA 02472-2671.
- What is Giancarlo Leon's phone number?
- The practice phone number listed in the NPPES registry for Giancarlo Leon is (617) 661-3991.
- Is Giancarlo Leon's NPI active?
- Yes — Giancarlo Leon's NPI (1487360376) is active in the NPPES registry as of the last update on 2023-01-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.