Are you Olivia A. Brennan, AU.D.? This profile is yours to edit: update your address, phone, photo and services.
Edit this profileAt a glance
- 58 S Main St, Sayville, NY 11782
About Dr. Brennan
Listed in the NPI registry as an audiologist, Olivia A. Brennan, AU.D. practices in Sayville, NY. NPI 1750263992 identifies this record in the national registry.
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) 750-6377
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
58 S MAIN ST
Sayville, NY 11782
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 2
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2025 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What kind of doctor is Olivia A. Brennan?
Olivia A. Brennan is an audiologist in Sayville, NY. That is the designation recorded for this NPI in the federal registry.
NPI registry
What is Olivia A. Brennan's address?
Olivia A. Brennan is listed at 58 S Main St, Sayville, NY 11782. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Olivia A. Brennan?
The number on file is (631) 750-6377. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Olivia A. Brennan's NPI number?
Olivia A. Brennan's National Provider Identifier is 1750263992. 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 Olivia A. Brennan train?
Olivia A. Brennan attended Other, graduating in 2025. This comes from the CMS National Downloadable File.
CMS public data
How long has Olivia A. Brennan been practicing?
Olivia A. Brennan has 1 year experience. Calculated from a graduation year of 2025, reported in the CMS National Downloadable File.
CMS public data
Has Olivia A. Brennan confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Olivia A. Brennan. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.