Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Izaak William Granger, APRN-CNP

Acute Care Nurse Practitioner in Columbus, OH · enumerated 2014.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1780095281

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Izaak William Granger

Credential APRN-CNP

Sex Male

Practice address 3525 Olentangy River Rd Ste 5300, Columbus, OH, 43214

Phone (614) 566-3500

Fax (614) 533-0150

Enumeration date May 19, 2014

Last updated in NPPES Feb 10, 2025

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License RN.365402 (OH) Secondary

363LA2100X Acute Care Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License APRN.CNP.16074 (OH) Primary

Other identifiers

Identifier	Type	State	Issuer
P01452479	Other	OH	RAILROAD MEDICARE
0106545	Medicaid	OH	-

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Izaak Granger?

Izaak Granger is registered in NPPES with the primary taxonomy of Acute Care Nurse Practitioner. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-02-10.