Izaak Granger, APRN-CNP
Izaak Granger, APRN-CNP is an Acute Care Nurse Practitioner in Columbus, OH, registered under NPI 1780095281. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
The practice address on file is 3525 OLENTANGY RIVER RD STE 5300, Columbus, OH 43214. 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 |
|---|---|---|
| APRN.CNP.16074 | OH | Acute Care Nurse Practitioner primary |
| RN.365402 | OH | Registered Nurse |
This provider holds licence APRN.CNP.16074 issued in OH. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Practitioner - Nurse Practitioner
- PAC ID
- 0749407187
Medicare enrolment is recorded as approved under the provider type Practitioner - Nurse Practitioner. This means the provider is enrolled to bill Medicare, though it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Acute Care covers
Definition to come... NUCC Health Care Provider Taxonomy, code 363LA2100X
All registered taxonomy codes
This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 363LA2100X | Acute Care Nurse Practitioner Acute Care | APRN.CNP.16074 | OH | primary |
| 163W00000X | Registered Nurse | RN.365402 | OH |
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 | 1780095281 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | May 19, 2014 |
| Last updated | Feb 10, 2025 |
| Status | Active |
| Sole proprietor | No |
| Credential | APRN-CNP |
| Practice address |
3525 OLENTANGY RIVER RD STE 5300 Columbus, OH 43214 (614) 566-3500 Fax (614) 533-0150 |
| Mailing address |
PO BOX 7527 Dublin, OH 43017 |
| Other identifiers |
P01452479
· RAILROAD MEDICARE (OH) 0106545 (OH) |
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 | 8 | 0 | 0 | 9 | 5 | 2 | 8 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 7 | 7 | 0 | 0 | 9 | 1 | 2 | 7 |
Sum = 59 · next multiple of 10 = 60 · check digit = 1 · actual last digit = 1
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.