Provider Profile
Mary K. O'Neill, L.C.S.W.
Unclaimed ProfileAbout Mary O'neill
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Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (631) 751-4720
- Email not available
Practice Locations
215 HALLOCK RD STE 6C
Stony Brook, NY 11790
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other clinical social workers at this location 5
Same specialty, same street address — most likely the same department or group.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Common questions
What kind of doctor is Mary K. O'Neill?
Mary K. O'Neill is a clinical social worker in Stony Brook, NY. That is the designation recorded for this NPI in the federal registry.
NPI registry
What is Mary K. O'Neill's address?
Mary K. O'Neill is listed at 215 Hallock Rd Ste 6C, Stony Brook, NY 11790. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Mary K. O'Neill?
The number on file is (631) 751-4720. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Mary K. O'Neill's NPI number?
Mary K. O'Neill's National Provider Identifier is 1851493316. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
How long has Mary K. O'Neill been practicing?
Mary K. O'Neill has 20+ years experience. Registered with an NPI since 2006. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
Has Mary K. O'Neill confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Mary K. O'Neill. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.