Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Jillian Anne O'Brien, PA

Individual provider Surgical Physician Assistant · NPI 1558626614

Jillian Anne O'Brien, PA is a Physician Assistant in Stony Brook, New York. Qualified in 2012, 14 years ago. Practices with Stony Brook Orthopaedic Associates, University Faculty Practice Corpor, a 50-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in New York.

Years since qualifying
14
Licensed in
NY
In the registry since
2012
Specialties on file
2
What do these letters mean?
PA — Physician Assistant
A licensed clinician who examines, diagnoses and treats under a physician's supervision.

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Practice location Address checks out

101 Nicholls Rd
Stony Brook, NY 11794-3957
Phone: (631) 689-8333
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 222 E Middle Country Rd Ste 340, Smithtown, NY 11787-2814 — (631) 393-1620

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence 015675 (NY)
Surgical Physician Assistant Taxonomy 363AS0400X · Licence 015675 (NY)

Record details

NPI number1558626614
Entity typeIndividual (Type 1)
GenderFemale
Credentials PA
Sole proprietorYes
NPI enumeratedJuly 5, 2012
Last updated in NPPESNovember 30, 2023
Certification dateNovember 30, 2023

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 2012 (14 years in practice)
Group practice Stony Brook Orthopaedic Associates, University Faculty Practice Corpor — 50 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Stony Brook