MRS. BARBARA GIANNELLI-O'BRIEN LCSW
NPI 1144239484
Counselor - Mental Health in South Setauket, NY

Active since August 05, 2006PECOS EnrolledAccepts Medicare Assignment
3771 NESCONSET HWY STE 208A, SOUTH SETAUKET, NY 11720(631) 751-9600 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Mrs. Barbara Giannelli-o'brien Lcsw NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MRS. BARBARA GIANNELLI-O'BRIEN LCSW (NPI 1144239484) is an individual mental health provider in South Setauket, New York, licensed in New York (R040503-1) and active in the NPI registry since August 2006. She is enrolled in Medicare PECOS and is a graduate of State University Of New York At Stony Brook, School Of Medicine (1989).

NPPES Registry Identity

NPI1144239484
Entity TypeIndividualFemale
Primary Taxonomy101YM0800X
Provider Legal NameMRS. BARBARA GIANNELLI-O'BRIENCredential: LCSW
Location Address3771 NESCONSET HWY STE 208ASouth Setauket, NY 11720-1154
Mailing Address3771 Nesconset Hwy Ste 208aSouth Setauket, NY 11720-1154 · (631) 751-9600
Sole ProprietorYes
Medical School CMSState University Of New York At Stony Brook, School Of MedicineGraduated 1989
Enumeration DateAugust 5, 2006
Last NPPES UpdateJuly 8, 2007
NPI 1144239484 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers
Taxonomy Code101YM0800X
License Licensed in NY · R040503-1
3771 NESCONSET HWY STE 208A, South Setauket, NY 11720

Other Identifiers 2

Medicare ID-Type UnspecifiedN74481NY
Other21387NV · Vytra Value Options

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Mrs. Barbara Giannelli-o'brien Lcsw is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5294723201
PECOS Enrollment IDI20040506000054
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Psychologist
3771 NESCONSET HWY STE 208A
SOUTH SETAUKET, NY 11720
Specialist
3771 NESCONSET HWY STE 208A
SOUTH SETAUKET, NY 11720

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Barbara Giannelli-o'brien's NPI number?

The NPI number for Barbara Giannelli-o'brien is 1144239484. It was assigned to this individual provider in the NPPES registry on August 5, 2006.

Where is Barbara Giannelli-o'brien located?

Barbara Giannelli-o'brien practices at 3771 Nesconset Hwy Ste 208A, South Setauket, NY 11720. The listed phone number is (631) 751-9600.

What is Barbara Giannelli-o'brien's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

Is Barbara Giannelli-o'brien enrolled in Medicare?

Yes. Barbara Giannelli-o'brien is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Barbara Giannelli-o'brien was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.