IndividualActive
Justin Marcus
NPI 1578136784 · Social Worker · Montclair, NJ
Justin Marcus is a Social Worker provider in Montclair, NJ (NPI 1578136784).
Provider details
- NPI number
- 1578136784
- Entity type
- Individual
- Primary specialty
- Social WorkerBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(55/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
4 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
51 Upper Montclair Plz Ste 27
Montclair, NJ 07043-1340
Phone: (973) 975-8699
Approximate (ZIP-level) locationGet directions
Mailing address
345 Claremont Ave Apt 8
Montclair, NJ 07042-1839
Registry dates
- Enumerated
- 2021-07-24
- Last updated
- 2021-07-24
- Certified
- 2021-07-24
Frequently asked questions
- What is Justin Marcus's NPI number?
- Justin Marcus's National Provider Identifier (NPI) is 1578136784, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Justin Marcus's specialty?
- Justin Marcus is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).
- Where is Justin Marcus located?
- Justin Marcus's practice location on file with NPPES is 51 Upper Montclair Plz Ste 27, Montclair, NJ 07043-1340.
- What is Justin Marcus's phone number?
- The practice phone number listed in the NPPES registry for Justin Marcus is (973) 975-8699.
- Is Justin Marcus's NPI active?
- Yes — Justin Marcus's NPI (1578136784) is active in the NPPES registry as of the last update on 2021-07-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.