Marcus Chajecki, CASAC-T / CRAP
NPI 1467339119 · Addiction (Substance Use Disorder) Counselor · Staten Island, NY
Marcus Chajecki, CASAC-T / CRAP is a Addiction (Substance Use Disorder) Counselor provider in Staten Island, NY (NPI 1467339119).
Provider details
- NPI number
- 1467339119
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Credential
- CASAC-T / CRAP
- Sex
- Male
- Sole proprietor
- Yes
- License
- 40875 (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
Under 1 yr in 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
- 2025-08-16
- Last updated
- 2025-08-16
- Certified
- 2025-08-16
Frequently asked questions
- What is Marcus Chajecki's NPI number?
- Marcus Chajecki's National Provider Identifier (NPI) is 1467339119, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marcus Chajecki's specialty?
- Marcus Chajecki is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Marcus Chajecki located?
- Marcus Chajecki's practice location on file with NPPES is 388 Richmond Ter Apt 6a, Staten Island, NY 10301-1531.
- What is Marcus Chajecki's phone number?
- The practice phone number listed in the NPPES registry for Marcus Chajecki is (718) 772-6870.
- Is Marcus Chajecki's NPI active?
- Yes — Marcus Chajecki's NPI (1467339119) is active in the NPPES registry as of the last update on 2025-08-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.