Grant Cannizzaro, MSW
NPI 1871661058 · Clinical Social Worker · Littleton, CO
Grant Cannizzaro, MSW is a Clinical Social Worker provider in Littleton, CO (NPI 1871661058).
Provider details
- NPI number
- 1871661058
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- MSW
- Sex
- Male
- Sole proprietor
- No
- License
- 982018 (CO)
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
- 2006-12-04
- Last updated
- 2007-11-13
Frequently asked questions
- What is Grant Cannizzaro's NPI number?
- Grant Cannizzaro's National Provider Identifier (NPI) is 1871661058, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Grant Cannizzaro's specialty?
- Grant Cannizzaro is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Grant Cannizzaro located?
- Grant Cannizzaro's practice location on file with NPPES is 5500 S Sycamore St, Littleton, CO 80120-8201.
- What is Grant Cannizzaro's phone number?
- The practice phone number listed in the NPPES registry for Grant Cannizzaro is (303) 730-3303.
- Is Grant Cannizzaro's NPI active?
- Yes — Grant Cannizzaro's NPI (1871661058) is active in the NPPES registry as of the last update on 2007-11-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.