Karissa Brennan, LMHC
NPI 1588084966 · Mental Health Counselor · New York, NY
Karissa Brennan, LMHC is a Mental Health Counselor provider in New York, NY (NPI 1588084966).
Provider details
- NPI number
- 1588084966
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Credential
- LMHC
- Sex
- Female
- Sole proprietor
- Yes
- License
- 005767 (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
12 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
- 2014-04-23
- Last updated
- 2014-04-23
Frequently asked questions
- What is Karissa Brennan's NPI number?
- Karissa Brennan's National Provider Identifier (NPI) is 1588084966, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karissa Brennan's specialty?
- Karissa Brennan is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Karissa Brennan located?
- Karissa Brennan's practice location on file with NPPES is 630 Lenox Ave, New York, NY 10037-1247.
- What is Karissa Brennan's phone number?
- The practice phone number listed in the NPPES registry for Karissa Brennan is (908) 963-6044.
- Is Karissa Brennan's NPI active?
- Yes — Karissa Brennan's NPI (1588084966) is active in the NPPES registry as of the last update on 2014-04-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.