Nicolette Slezak
NPI 1366628901 · Mental Health Counselor · Springfield, MA
Nicolette Slezak is a Mental Health Counselor provider in Springfield, MA (NPI 1366628901).
Provider details
- NPI number
- 1366628901
- Entity type
- Individual
- Primary specialty
- Mental Health 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
18 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
- 2008-01-14
- Last updated
- 2008-01-14
Frequently asked questions
- What is Nicolette Slezak's NPI number?
- Nicolette Slezak's National Provider Identifier (NPI) is 1366628901, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nicolette Slezak's specialty?
- Nicolette Slezak is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Nicolette Slezak located?
- Nicolette Slezak's practice location on file with NPPES is 503 State St, Springfield, MA 01109-4101.
- What is Nicolette Slezak's phone number?
- The practice phone number listed in the NPPES registry for Nicolette Slezak is (413) 733-6661.
- Is Nicolette Slezak's NPI active?
- Yes — Nicolette Slezak's NPI (1366628901) is active in the NPPES registry as of the last update on 2008-01-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.