IndividualActive
Mary O'Brien, LCSW
NPI 1598544371 · Clinical Social Worker · Peekskill, NY
Mary O'Brien, LCSW is a Clinical Social Worker provider in Peekskill, NY (NPI 1598544371).
Provider details
- NPI number
- 1598544371
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- Yes
- License
- 074831 (NY)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(58/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
2 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
50 Dayton Ln Ste 205
Peekskill, NY 10566-2860
Phone: (914) 736-3371
Street-level locationGet directions
Mailing address
3 Ingham Rd
Briarcliff Manor, NY 10510-1704
Registry dates
- Enumerated
- 2023-09-21
- Last updated
- 2023-09-21
- Certified
- 2023-09-21
Frequently asked questions
- What is Mary O'Brien's NPI number?
- Mary O'Brien's National Provider Identifier (NPI) is 1598544371, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary O'Brien's specialty?
- Mary O'Brien is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Mary O'Brien located?
- Mary O'Brien's practice location on file with NPPES is 50 Dayton Ln Ste 205, Peekskill, NY 10566-2860.
- What is Mary O'Brien's phone number?
- The practice phone number listed in the NPPES registry for Mary O'Brien is (914) 736-3371.
- Is Mary O'Brien's NPI active?
- Yes — Mary O'Brien's NPI (1598544371) is active in the NPPES registry as of the last update on 2023-09-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.