Jeffrey Marcus, CASAC-T
NPI 1700489937 · Addiction (Substance Use Disorder) Counselor · Brooklyn, NY
Jeffrey Marcus, CASAC-T is a Addiction (Substance Use Disorder) Counselor provider in Brooklyn, NY (NPI 1700489937).
Provider details
- NPI number
- 1700489937
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Credential
- CASAC-T
- Sex
- Male
- Sole proprietor
- No
- License
- 36747 (NY)
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
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
- 2020-11-19
- Last updated
- 2020-11-19
- Certified
- 2020-11-19
Frequently asked questions
- What is Jeffrey Marcus's NPI number?
- Jeffrey Marcus's National Provider Identifier (NPI) is 1700489937, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jeffrey Marcus's specialty?
- Jeffrey Marcus is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Jeffrey Marcus located?
- Jeffrey Marcus's practice location on file with NPPES is 255 Avenue W, Brooklyn, NY 11223-5202.
- What is Jeffrey Marcus's phone number?
- The practice phone number listed in the NPPES registry for Jeffrey Marcus is (866) 569-7233.
- Is Jeffrey Marcus's NPI active?
- Yes — Jeffrey Marcus's NPI (1700489937) is active in the NPPES registry as of the last update on 2020-11-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.