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Edit this profileAt a glance
- 3771 Nesconset Hwy Ste 208A, South Setauket, NY 11720
About Barbara Giannelli-O'brien
Barbara Giannelli-O'Brien, LCSW is a mental health counselor based in South Setauket, NY. Barbara is a 1989 graduate of State University of New York at Stony Brook, School of Medicine. The provider's National Provider Identifier (NPI) is 1144239484.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (631) 751-9600
- Email not available
Practice Locations
3771 NESCONSET HWY STE 208A
South Setauket, NY 11720
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 mental health counselors at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 8
Clinically related specialties at the same address — the people this provider most likely works alongside.
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.
More connections — 14 related providers in 3 groups
Other mental health counselors in South Setauket 2
Same specialty, same city.
Trained at State University of New York at Stony Brook, School of Medicine 4
Other providers in the same specialty who trained at the same institution.
Class of 1989 at State University of New York at Stony Brook, School of Medicine 8
Providers who graduated from the same medical school in the same year.
Common questions
What does Barbara Giannelli-O'Brien specialize in?
Barbara Giannelli-O'Brien is a mental health counselor in South Setauket, NY. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Barbara Giannelli-O'Brien located?
Barbara Giannelli-O'Brien is listed at 3771 Nesconset Hwy Ste 208A, South Setauket, NY 11720. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Barbara Giannelli-O'Brien's phone number?
The number on file is (631) 751-9600. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Barbara Giannelli-O'Brien's NPI number?
Barbara Giannelli-O'Brien's National Provider Identifier is 1144239484. 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
Where did Barbara Giannelli-O'Brien train?
Barbara Giannelli-O'Brien attended State University of New York at Stony Brook, School of Medicine, graduating in 1989. This comes from the CMS National Downloadable File.
CMS public data
How long has Barbara Giannelli-O'Brien been practicing?
Barbara Giannelli-O'Brien has 37 years experience. Calculated from a graduation year of 1989, reported in the CMS National Downloadable File.
CMS public data
Has Barbara Giannelli-O'Brien confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Barbara Giannelli-O'Brien. If this is you, claiming it is free.
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