Cassandra Duff
NPI 1215089727 · Clinical Social Worker · Bronx, NY
Enrolled with Medicare as Practitioner - Mental Health Counselor · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Cassandra Duff is a Clinical Social Worker provider in Bronx, NY (NPI 1215089727).
Provider details
- NPI number
- 1215089727
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 0025411 (NY)
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
- 2007-01-17
- Last updated
- 2007-07-08
Frequently asked questions
- What is Cassandra Duff's NPI number?
- Cassandra Duff's National Provider Identifier (NPI) is 1215089727, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cassandra Duff's specialty?
- Cassandra Duff is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Cassandra Duff located?
- Cassandra Duff's practice location on file with NPPES is 401 E 147th St, Bronx, NY 10455.
- What is Cassandra Duff's phone number?
- The practice phone number listed in the NPPES registry for Cassandra Duff is (718) 665-2456.
- Does Cassandra Duff accept Medicare?
- Cassandra Duff is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Cassandra Duff's NPI active?
- Yes — Cassandra Duff's NPI (1215089727) 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.