Provider Profile
Gillian Brennan, PA
Unclaimed ProfileAbout Gillian Brennan
Gillian Brennan, PA is a physician assistant practicing in Syosset, NY. Gillian is also listed as specializing in physician assistant — medical. This provider record is associated with NPI 1639210750.
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
- (516) 496-2752
- Email not available
Practice Locations
221 JERICHO TPKE
Syosset, NY 11791
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 physician assistants at this location 8
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 5
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 — 21 related providers in 3 groups
Other physician assistants in Syosset 5
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2003 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What does Gillian Brennan specialize in?
Gillian Brennan is a physician assistant in Syosset, NY. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Gillian Brennan located?
Gillian Brennan is listed at 221 Jericho Tpke, Syosset, NY 11791. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Gillian Brennan's phone number?
The number on file is (516) 496-2752. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Gillian Brennan's NPI number?
Gillian Brennan's National Provider Identifier is 1639210750. 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 Gillian Brennan train?
Gillian Brennan attended Other, graduating in 2003. This comes from the CMS National Downloadable File.
CMS public data
How long has Gillian Brennan been practicing?
Gillian Brennan has 23 years experience. Calculated from a graduation year of 2003, reported in the CMS National Downloadable File.
CMS public data
Has Gillian Brennan confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Gillian Brennan. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.