Mary Fassnacht, LCSW
NPI 1245703909 · Clinical Social Worker · Midland Park, NJ
Mary Fassnacht, LCSW is a Clinical Social Worker provider in Midland Park, NJ (NPI 1245703909).
Provider details
- NPI number
- 1245703909
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- Yes
- License
- 44SC05420600 (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
7 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
Mailing address
Registry dates
- Enumerated
- 2019-01-05
- Last updated
- 2019-01-05
Frequently asked questions
- What is Mary Fassnacht's NPI number?
- Mary Fassnacht's National Provider Identifier (NPI) is 1245703909, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Fassnacht's specialty?
- Mary Fassnacht is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Mary Fassnacht located?
- Mary Fassnacht's practice location on file with NPPES is 317 Godwin Ave, Midland Park, NJ 07432-1519.
- What is Mary Fassnacht's phone number?
- The practice phone number listed in the NPPES registry for Mary Fassnacht is (973) 722-9831.
- Is Mary Fassnacht's NPI active?
- Yes — Mary Fassnacht's NPI (1245703909) is active in the NPPES registry as of the last update on 2019-01-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.