James Mcmahon, LCSW-LMFT
NPI 1457409203 · Clinical Social Worker · Cornwall, NY
James Mcmahon, LCSW-LMFT is a Clinical Social Worker provider in Cornwall, NY (NPI 1457409203).
Provider details
- NPI number
- 1457409203
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW-LMFT
- Sex
- Male
- Sole proprietor
- No
- License
- R035065-1 (NY)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
Profile Score
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
Mailing address
Registry dates
- Enumerated
- 2007-01-08
- Last updated
- 2010-05-21
Frequently asked questions
- What is James Mcmahon's NPI number?
- James Mcmahon's National Provider Identifier (NPI) is 1457409203, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Mcmahon's specialty?
- James Mcmahon is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is James Mcmahon located?
- James Mcmahon's practice location on file with NPPES is 5 Mine Hill Road, Cornwall, NY 12518-1806.
- What is James Mcmahon's phone number?
- The practice phone number listed in the NPPES registry for James Mcmahon is (914) 805-5546.
- Is James Mcmahon's NPI active?
- Yes — James Mcmahon's NPI (1457409203) is active in the NPPES registry as of the last update on 2010-05-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.