IndividualActive
Marissa Block, LMSW
NPI 1720391766 · Social Worker · New York, NY
Marissa Block, LMSW is a Social Worker provider in New York, NY (NPI 1720391766).
Provider details
- NPI number
- 1720391766
- Entity type
- Individual
- Primary specialty
- Social WorkerBehavioral Health & Social Service Providers
- Credential
- LMSW
- Sex
- Female
- Sole proprietor
- No
- License
- 081358 (NY)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(83/100 index)
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
1824 Madison Ave
New York, NY 10035-3832
Phone: (212) 423-4500
Fax: (212) 423-4577
Street-level locationGet directions
Mailing address
Po Box 26911
New York, NY 10087-6911
Registry dates
- Enumerated
- 2010-07-20
- Last updated
- 2010-07-20
Frequently asked questions
- What is Marissa Block's NPI number?
- Marissa Block's National Provider Identifier (NPI) is 1720391766, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marissa Block's specialty?
- Marissa Block is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).
- Where is Marissa Block located?
- Marissa Block's practice location on file with NPPES is 1824 Madison Ave, New York, NY 10035-3832.
- What is Marissa Block's phone number?
- The practice phone number listed in the NPPES registry for Marissa Block is (212) 423-4500.
- Is Marissa Block's NPI active?
- Yes — Marissa Block's NPI (1720391766) is active in the NPPES registry as of the last update on 2010-07-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.