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David Hammerschlag, LMSW
NPI 1790518736 · Social Worker · New York, NY
David Hammerschlag, LMSW is a Social Worker provider in New York, NY (NPI 1790518736).
Provider details
- NPI number
- 1790518736
- Entity type
- Individual
- Primary specialty
- Social WorkerBehavioral Health & Social Service Providers
- Credential
- LMSW
- Sex
- Male
- Sole proprietor
- No
- License
- 118183 (NY)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(56/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
1 yr 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
1325 Avenue of the Americas Fl 28
New York, NY 10019-6583
Phone: (917) 691-8490
Street-level locationGet directions
Mailing address
480 Decatur St Apt 3
Brooklyn, NY 11233-1501
Registry dates
- Enumerated
- 2024-08-23
- Last updated
- 2024-08-23
- Certified
- 2024-08-23
Frequently asked questions
- What is David Hammerschlag's NPI number?
- David Hammerschlag's National Provider Identifier (NPI) is 1790518736, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Hammerschlag's specialty?
- David Hammerschlag is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).
- Where is David Hammerschlag located?
- David Hammerschlag's practice location on file with NPPES is 1325 Avenue of the Americas Fl 28, New York, NY 10019-6583.
- What is David Hammerschlag's phone number?
- The practice phone number listed in the NPPES registry for David Hammerschlag is (917) 691-8490.
- Is David Hammerschlag's NPI active?
- Yes — David Hammerschlag's NPI (1790518736) is active in the NPPES registry as of the last update on 2024-08-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.