IndividualActive
Mary Ellen Mcmahon
NPI 1801817374 · Clinical Social Worker · New York, NY
Mary Ellen Mcmahon is a Clinical Social Worker provider in New York, NY (NPI 1801817374).
Provider details
- NPI number
- 1801817374
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- Yes
- License
- RO26701 (NY)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
150 E 56th St
Suite 2-C
New York, NY 10022-3631
Phone: (212) 980-1925
Street-level locationGet directions
Mailing address
150 E 56th St
New York, NY 10022-3631
Registry dates
- Enumerated
- 2006-07-21
- Last updated
- 2007-07-08
Frequently asked questions
- What is Mary Ellen Mcmahon's NPI number?
- Mary Ellen Mcmahon's National Provider Identifier (NPI) is 1801817374, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Ellen Mcmahon's specialty?
- Mary Ellen Mcmahon is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Mary Ellen Mcmahon located?
- Mary Ellen Mcmahon's practice location on file with NPPES is 150 E 56th St, New York, NY 10022-3631.
- What is Mary Ellen Mcmahon's phone number?
- The practice phone number listed in the NPPES registry for Mary Ellen Mcmahon is (212) 980-1925.
- Is Mary Ellen Mcmahon's NPI active?
- Yes — Mary Ellen Mcmahon's NPI (1801817374) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.