Mellisa Duffy, MSW
NPI 1720542079 · Clinical Social Worker · Tacoma, WA
Mellisa Duffy, MSW is a Clinical Social Worker provider in Tacoma, WA (NPI 1720542079).
Provider details
- NPI number
- 1720542079
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- MSW
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Social Worker104100000X
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
7 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
- 2019-01-30
- Last updated
- 2020-06-19
- Certified
- 2020-06-19
Frequently asked questions
- What is Mellisa Duffy's NPI number?
- Mellisa Duffy's National Provider Identifier (NPI) is 1720542079, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mellisa Duffy's specialty?
- Mellisa Duffy is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Mellisa Duffy located?
- Mellisa Duffy's practice location on file with NPPES is A- 122- Social Work 9600 Veterans Drive, Tacoma, WA 98493-0001.
- What is Mellisa Duffy's phone number?
- The practice phone number listed in the NPPES registry for Mellisa Duffy is (808) 225-9029.
- Is Mellisa Duffy's NPI active?
- Yes — Mellisa Duffy's NPI (1720542079) is active in the NPPES registry as of the last update on 2020-06-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.