IndividualActive
Abigail Hartwig, LMSW
NPI 1720962889 · Social Worker · New York, NY
Abigail Hartwig, LMSW is a Social Worker provider in New York, NY (NPI 1720962889).
Provider details
- NPI number
- 1720962889
- Entity type
- Individual
- Primary specialty
- Social WorkerBehavioral Health & Social Service Providers
- Credential
- LMSW
- Sex
- Female
- Sole proprietor
- No
- License
- 120712 (NY)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(54/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in 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
347 W 37th St
New York, NY 10018-4202
Phone: (844) 400-1975
Street-level locationGet directions
Mailing address
808 Columbus Ave Apt 4f
New York, NY 10025-5141
Registry dates
- Enumerated
- 2025-08-02
- Last updated
- 2025-08-02
- Certified
- 2025-08-02
Frequently asked questions
- What is Abigail Hartwig's NPI number?
- Abigail Hartwig's National Provider Identifier (NPI) is 1720962889, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Abigail Hartwig's specialty?
- Abigail Hartwig is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).
- Where is Abigail Hartwig located?
- Abigail Hartwig's practice location on file with NPPES is 347 W 37th St, New York, NY 10018-4202.
- What is Abigail Hartwig's phone number?
- The practice phone number listed in the NPPES registry for Abigail Hartwig is (844) 400-1975.
- Is Abigail Hartwig's NPI active?
- Yes — Abigail Hartwig's NPI (1720962889) is active in the NPPES registry as of the last update on 2025-08-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.