Dianne Collazo, RN
Dianne Collazo, RN is an Infusion Therapy Registered Nurse in Melville, NY, registered under NPI 1285525626. This provider registers 3 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 265 BROADHOLLOW RD STE 201, Melville, NY 11747. 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 |
|---|---|---|
| 433785 | NY | Infusion Therapy Registered Nurse primary |
| 433785-01 | NY | Home Health Registered Nurse |
| 433785-01 | NY | Critical Care Medicine Registered Nurse |
This provider holds licence 433785 issued in NY. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
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.
What Infusion Therapy covers
Definition to come... NUCC Health Care Provider Taxonomy, code 163WI0500X
All registered taxonomy codes
This provider registers 3 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 163WI0500X | Infusion Therapy Registered Nurse Infusion Therapy | 433785 | NY | primary |
| 163WH0200X | Home Health Registered Nurse Home Health | 433785-01 | NY | |
| 163WC0200X | Critical Care Medicine Registered Nurse Critical Care Medicine | 433785-01 | NY |
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 | 1285525626 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jul 14, 2025 |
| Last updated | Jul 14, 2025 |
| Status | Active |
| Sole proprietor | Yes |
| Credential | RN |
| Practice address |
265 BROADHOLLOW RD STE 201 Melville, NY 11747 (914) 216-7585 |
| Mailing address |
17 OAKWOOD ST Blue Point, NY 11715 |
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 | 2 | 8 | 5 | 5 | 2 | 5 | 6 | 2 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 2 | 7 | 5 | 1 | 2 | 1 | 6 | 4 |
Sum = 54 · next multiple of 10 = 60 · check digit = 6 · actual last digit = 6
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.