Merissa Jennings, LCSW
NPI 1245531508 · Clinical Social Worker · Smithtown, NY
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Merissa Jennings, LCSW is a Clinical Social Worker provider in Smithtown, NY (NPI 1245531508).
Provider details
- NPI number
- 1245531508
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- Yes
- License
- 082183-1 (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
15 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
- 2010-11-03
- Last updated
- 2017-03-13
Frequently asked questions
- What is Merissa Jennings's NPI number?
- Merissa Jennings's National Provider Identifier (NPI) is 1245531508, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Merissa Jennings's specialty?
- Merissa Jennings is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Merissa Jennings located?
- Merissa Jennings's practice location on file with NPPES is 20 Gilbert Ave, Smithtown, NY 11787-5312.
- What is Merissa Jennings's phone number?
- The practice phone number listed in the NPPES registry for Merissa Jennings is (516) 852-0248.
- Does Merissa Jennings accept Medicare?
- Merissa Jennings is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Merissa Jennings's NPI active?
- Yes — Merissa Jennings's NPI (1245531508) is active in the NPPES registry as of the last update on 2017-03-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.