Mary Fennelly, CRC
NPI 1366683856 · Addiction (Substance Use Disorder) Counselor · Mendham, NJ
Mary Fennelly, CRC is a Addiction (Substance Use Disorder) Counselor provider in Mendham, NJ (NPI 1366683856).
Provider details
- NPI number
- 1366683856
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Credential
- CRC
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Mental Health Counselor101YM0800X
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
17 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
Mailing address
Registry dates
- Enumerated
- 2009-03-13
- Last updated
- 2009-03-13
Frequently asked questions
- What is Mary Fennelly's NPI number?
- Mary Fennelly's National Provider Identifier (NPI) is 1366683856, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Fennelly's specialty?
- Mary Fennelly is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Mary Fennelly located?
- Mary Fennelly's practice location on file with NPPES is 80 W. Main Street, Mendham, NJ 07945.
- What is Mary Fennelly's phone number?
- The practice phone number listed in the NPPES registry for Mary Fennelly is (973) 543-5656.
- Is Mary Fennelly's NPI active?
- Yes — Mary Fennelly's NPI (1366683856) is active in the NPPES registry as of the last update on 2009-03-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.