Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Grant Niskanen, MD
Family Medicine Physician in Klamath Falls, OR · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1801898358
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Registry record
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 006600 | Medicaid | OR | - |
| POO100692 | Other | - | RAILROAD MEDICARE |
| 0108854YPNH02 | Other | NH | ANTHEM BC/BS |
| 30009720 | Medicaid | NH | - |
| 3059734PNH02 | Other | NH | CIGNA |
| 5830418 | Other | - | AETNA |
| 8782 | Other | NH | STATE LICENSE # |
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.
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Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-03-07.