Mary O'Leary, LCSW
NPI 1598951667 · Social Worker · Jamestown, NY
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary O'Leary, LCSW is a Social Worker provider in Jamestown, NY (NPI 1598951667).
Provider details
- NPI number
- 1598951667
- Entity type
- Individual
- Primary specialty
- Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
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
18 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2007-09-21
- Last updated
- 2024-08-27
- Certified
- 2024-08-27
Frequently asked questions
- What is Mary O'Leary's NPI number?
- Mary O'Leary's National Provider Identifier (NPI) is 1598951667, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary O'Leary's specialty?
- Mary O'Leary is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).
- Where is Mary O'Leary located?
- Mary O'Leary's practice location on file with NPPES is 500 Pine St Ste 1b, Jamestown, NY 14701-5381.
- What is Mary O'Leary's phone number?
- The practice phone number listed in the NPPES registry for Mary O'Leary is (716) 720-0703.
- Does Mary O'Leary accept Medicare?
- Mary O'Leary is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary O'Leary's NPI active?
- Yes — Mary O'Leary's NPI (1598951667) is active in the NPPES registry as of the last update on 2024-08-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.