IndividualActive
Millie Marcus, LMSW
NPI 1861937732 · Social Worker · New York, NY
Millie Marcus, LMSW is a Social Worker provider in New York, NY (NPI 1861937732).
Provider details
- NPI number
- 1861937732
- Entity type
- Individual
- Primary specialty
- Social WorkerBehavioral Health & Social Service Providers
- Credential
- LMSW
- Sex
- Female
- Sole proprietor
- No
- License
- 099427 (NY)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(71/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
9 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
16 E 16th St
New York, NY 10003-3105
Phone: (212) 206-5200
Street-level locationGet directions
Mailing address
340 E 64th St
New York, NY 10065-7503
Registry dates
- Enumerated
- 2016-12-30
- Last updated
- 2016-12-30
Frequently asked questions
- What is Millie Marcus's NPI number?
- Millie Marcus's National Provider Identifier (NPI) is 1861937732, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Millie Marcus's specialty?
- Millie Marcus is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).
- Where is Millie Marcus located?
- Millie Marcus's practice location on file with NPPES is 16 E 16th St, New York, NY 10003-3105.
- What is Millie Marcus's phone number?
- The practice phone number listed in the NPPES registry for Millie Marcus is (212) 206-5200.
- Is Millie Marcus's NPI active?
- Yes — Millie Marcus's NPI (1861937732) is active in the NPPES registry as of the last update on 2016-12-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.