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Willa Marcus, MSS, M.ED
NPI 1295822666 · Clinical Social Worker · Trenton, NJ
Willa Marcus, MSS, M.ED is a Clinical Social Worker provider in Trenton, NJ (NPI 1295822666).
Provider details
- NPI number
- 1295822666
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- MSS, M.ED
- Sex
- Female
- Sole proprietor
- Yes
- License
- 44SC01163600 (NJ)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(90/100 index)
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
39 N Clinton Ave
Trenton, NJ 08609-1011
Phone: (609) 394-5157
Fax: (609) 394-3010
Street-level locationGet directions
Mailing address
39 N Clinton Ave
Trenton, NJ 08609-1011
Registry dates
- Enumerated
- 2006-10-06
- Last updated
- 2007-07-08
Frequently asked questions
- What is Willa Marcus's NPI number?
- Willa Marcus's National Provider Identifier (NPI) is 1295822666, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Willa Marcus's specialty?
- Willa Marcus is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Willa Marcus located?
- Willa Marcus's practice location on file with NPPES is 39 N Clinton Ave, Trenton, NJ 08609-1011.
- What is Willa Marcus's phone number?
- The practice phone number listed in the NPPES registry for Willa Marcus is (609) 394-5157.
- Is Willa Marcus's NPI active?
- Yes — Willa Marcus's NPI (1295822666) 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.