Nicholas Deleeuw, B.A.
NPI 1912136235 · Addiction (Substance Use Disorder) Counselor · Mendham, NJ
Nicholas Deleeuw, B.A. is a Addiction (Substance Use Disorder) Counselor provider in Mendham, NJ (NPI 1912136235).
Provider details
- NPI number
- 1912136235
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Credential
- B.A.
- Sex
- Male
- Sole proprietor
- No
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
16 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
- 2009-07-08
- Last updated
- 2009-07-08
Frequently asked questions
- What is Nicholas Deleeuw's NPI number?
- Nicholas Deleeuw's National Provider Identifier (NPI) is 1912136235, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nicholas Deleeuw's specialty?
- Nicholas Deleeuw is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Nicholas Deleeuw located?
- Nicholas Deleeuw's practice location on file with NPPES is 80 West Main Street, Mendham, NJ 07945.
- What is Nicholas Deleeuw's phone number?
- The practice phone number listed in the NPPES registry for Nicholas Deleeuw is (973) 543-5656.
- Is Nicholas Deleeuw's NPI active?
- Yes — Nicholas Deleeuw's NPI (1912136235) is active in the NPPES registry as of the last update on 2009-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.