Provider Profile
Andrea Castonguay, PA
Unclaimed ProfileAbout Andrea Castonguay
Listed in the NPI registry as a physician assistant, Andrea Castonguay, PA practices in Williamsville, NY. Medicare claims data shows Andrea provided 64 services to 55 patients. The services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more and aspiration and/or injection of fluid from large joint. NPI 1831458603 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
- (716) 906-5908
- Email not available
Practice Locations
5500 MAIN ST SUITE 107
Williamsville, NY 14221
Procedures Most Often Billed to Medicare
64 services · 55 patients · 2 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Aspiration and/or injection of fluid from large joint | Procedure | 20610 |
19 | Less often than most peers in Physician Assistant |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
45 | As often as other peers in Physician Assistant |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
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 1
Same specialty, same street address — most likely the same department or group.
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.
Other physician assistants in Williamsville 8
Same specialty, same city.
More connections — 23 related providers in 3 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2012 at Other 7
Providers who graduated from the same medical school in the same year.
Also performs Aspiration and/or injection of fluid from large joint 8
Providers in NY who bill this service to Medicare most often.
Common questions
What is Andrea Castonguay's specialty?
Andrea Castonguay is a physician assistant in Williamsville, NY. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Andrea Castonguay?
Andrea Castonguay is listed at 5500 Main St Suite 107, Williamsville, NY 14221. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Andrea Castonguay?
The number on file is (716) 906-5908. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Andrea Castonguay?
Andrea Castonguay's National Provider Identifier is 1831458603. 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
What is Andrea Castonguay's education?
Andrea Castonguay attended Other, graduating in 2012. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Andrea Castonguay have?
Andrea Castonguay has 14 years experience. Calculated from a graduation year of 2012, reported in the CMS National Downloadable File.
CMS public data
What is Andrea Castonguay known for?
According to Medicare billing data, Andrea Castonguay performs procedures including aspiration and/or injection of fluid from large joint, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Andrea Castonguay's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Andrea Castonguay. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.