IndividualActive
Marc Liu, LMSW
NPI 1942831813 · Social Worker · New York, NY
Marc Liu, LMSW is a Social Worker provider in New York, NY (NPI 1942831813).
Provider details
- NPI number
- 1942831813
- Entity type
- Individual
- Primary specialty
- Social WorkerBehavioral Health & Social Service Providers
- Credential
- LMSW
- Sex
- Male
- Sole proprietor
- Yes
- License
- 108646-01 (NY)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(65/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 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
501 W 123rd St Apt 19d
New York, NY 10027-5011
Phone: (917) 442-1452
Street-level locationGet directions
Mailing address
501 W 123rd St Apt 19d
New York, NY 10027-5011
Registry dates
- Enumerated
- 2020-01-30
- Last updated
- 2020-01-30
- Certified
- 2020-01-30
Frequently asked questions
- What is Marc Liu's NPI number?
- Marc Liu's National Provider Identifier (NPI) is 1942831813, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marc Liu's specialty?
- Marc Liu is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).
- Where is Marc Liu located?
- Marc Liu's practice location on file with NPPES is 501 W 123rd St Apt 19d, New York, NY 10027-5011.
- What is Marc Liu's phone number?
- The practice phone number listed in the NPPES registry for Marc Liu is (917) 442-1452.
- Is Marc Liu's NPI active?
- Yes — Marc Liu's NPI (1942831813) is active in the NPPES registry as of the last update on 2020-01-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.