Michael Callahan, DSW, MSW, LCSW
NPI 1811589559 · Clinical Social Worker · Newark, NJ
Michael Callahan, DSW, MSW, LCSW is a Clinical Social Worker provider in Newark, NJ (NPI 1811589559).
Provider details
- NPI number
- 1811589559
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- DSW, MSW, LCSW
- Sex
- Male
- Sole proprietor
- No
- License
- 44SC05953900 (NJ)
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
5 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 120 Morris AveSummit, NJ 07901-4184Phone: (908) 273-0176
Registry dates
- Enumerated
- 2021-02-04
- Last updated
- 2022-01-13
- Certified
- 2022-01-13
Frequently asked questions
- What is Michael Callahan's NPI number?
- Michael Callahan's National Provider Identifier (NPI) is 1811589559, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Callahan's specialty?
- Michael Callahan is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Michael Callahan located?
- Michael Callahan's practice location on file with NPPES is 35 Halsey St, Newark, NJ 07102-3047.
- What is Michael Callahan's phone number?
- The practice phone number listed in the NPPES registry for Michael Callahan is (973) 723-2307.
- Is Michael Callahan's NPI active?
- Yes — Michael Callahan's NPI (1811589559) is active in the NPPES registry as of the last update on 2022-01-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.