Donald Nathanson, LCSW
NPI 1275886871 · Clinical Social Worker · Harrison, NY
Donald Nathanson, LCSW is a Clinical Social Worker provider in Harrison, NY (NPI 1275886871).
Provider details
- NPI number
- 1275886871
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Male
- Sole proprietor
- Yes
- License
- 083737 (NY)
Specialties & taxonomies
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
13 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
- 2012-10-19
- Last updated
- 2018-08-24
Frequently asked questions
- What is Donald Nathanson's NPI number?
- Donald Nathanson's National Provider Identifier (NPI) is 1275886871, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Donald Nathanson's specialty?
- Donald Nathanson is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Donald Nathanson located?
- Donald Nathanson's practice location on file with NPPES is 600 Mamaroneck Avenue, Harrison, NY 10528.
- What is Donald Nathanson's phone number?
- The practice phone number listed in the NPPES registry for Donald Nathanson is (310) 418-8200.
- Is Donald Nathanson's NPI active?
- Yes — Donald Nathanson's NPI (1275886871) is active in the NPPES registry as of the last update on 2018-08-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.