Justyna Slezak
NPI 1912266537 · Addiction (Substance Use Disorder) Counselor · Salem, MA
Justyna Slezak is a Addiction (Substance Use Disorder) Counselor provider in Salem, MA (NPI 1912266537).
Provider details
- NPI number
- 1912266537
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Sex
- Female
- 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
14 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
- 2012-05-16
- Last updated
- 2012-05-16
Frequently asked questions
- What is Justyna Slezak's NPI number?
- Justyna Slezak's National Provider Identifier (NPI) is 1912266537, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Justyna Slezak's specialty?
- Justyna Slezak is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Justyna Slezak located?
- Justyna Slezak's practice location on file with NPPES is 17 Winter St, Salem, MA 01970.
- What is Justyna Slezak's phone number?
- The practice phone number listed in the NPPES registry for Justyna Slezak is (617) 461-6986.
- Is Justyna Slezak's NPI active?
- Yes — Justyna Slezak's NPI (1912266537) is active in the NPPES registry as of the last update on 2012-05-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.