IndividualActive
Mark Firth, MSW MA LSW
NPI 1548240393 · Social Worker · Washington, NJ
Mark Firth, MSW MA LSW is a Social Worker provider in Washington, NJ (NPI 1548240393).
Provider details
- NPI number
- 1548240393
- Entity type
- Individual
- Primary specialty
- Social WorkerBehavioral Health & Social Service Providers
- Credential
- MSW MA LSW
- Sex
- Male
- Sole proprietor
- No
- License
- 44SC00637700 (NJ)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
492 Route 57 W
Washington, NJ 07882-4338
Phone: (908) 689-1000
Fax: (908) 689-4529
Street-level locationGet directions
Mailing address
240 Rosehill Ave
Phillipsburg, NJ 08865-1752
Registry dates
- Enumerated
- 2006-01-18
- Last updated
- 2007-07-08
Frequently asked questions
- What is Mark Firth's NPI number?
- Mark Firth's National Provider Identifier (NPI) is 1548240393, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Firth's specialty?
- Mark Firth is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).
- Where is Mark Firth located?
- Mark Firth's practice location on file with NPPES is 492 Route 57 W, Washington, NJ 07882-4338.
- What is Mark Firth's phone number?
- The practice phone number listed in the NPPES registry for Mark Firth is (908) 689-1000.
- Is Mark Firth's NPI active?
- Yes — Mark Firth's NPI (1548240393) 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.