Catherine Cagiannos
Catherine Cagiannos is a Vascular Surgery Physician in London, ONTARIO, registered under NPI 1740472869. This provider registers 5 separate taxonomy codes, which usually means they practise across more than one recognised specialty. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
The practice address on file is 97 CASTLEGROVE BLVD, London, ONTARIO N6G3T. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 35.083528C | OH | Vascular Surgery Physician primary |
| 35.083528C | OH | Vascular & Interventional Radiology… |
| 34950 | TN | Surgery Physician |
| 34950 | TN | Surgical Critical Care Physician |
| 34950 | TN | Trauma Surgery Physician |
Licences are recorded in 2 states: OH, TN. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
Licensed in 2 states
This provider holds licences in 2 states: Ohio and Tennessee. Multi-state licensure often means the provider works near a state border, covers more than one office, or delivers care by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.
Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.
What Vascular Surgery covers
A surgeon with expertise in the management of surgical disorders of the blood vessels, excluding the intracranial vessels or the heart. NUCC Health Care Provider Taxonomy, code 2086S0129X
All registered taxonomy codes
This provider registers 5 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 2086S0129X | Vascular Surgery Physician Vascular Surgery | 35.083528C | OH | primary |
| 2085R0204X | Vascular & Interventional Radiology Physician Vascular & Interventional Radiology | 35.083528C | OH | |
| 208600000X | Surgery Physician | 34950 | TN | |
| 2086S0102X | Surgical Critical Care Physician Surgical Critical Care | 34950 | TN | |
| 2086S0127X | Trauma Surgery Physician Trauma Surgery | 34950 | TN |
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1740472869 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Aug 13, 2007 |
| Last updated | Aug 13, 2007 |
| Status | Active |
| Sole proprietor | Yes |
| Practice address |
97 CASTLEGROVE BLVD London, ONTARIO N6G3T (519) 657-4783 |
| Other identifiers |
H59846
· Other (TN) |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 7 | 4 | 0 | 4 | 7 | 2 | 8 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 7 | 8 | 0 | 8 | 7 | 4 | 8 | 3 |
Sum = 71 · next multiple of 10 = 80 · check digit = 9 · actual last digit = 9
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.