Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Daniel James Koenig, O.D.
Optometrist in Ames, IA · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1235129917
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Registry record
Entity type Individual (Type 1)
Name Dr. Daniel James Koenig
Credential O.D.
Sex Male
Practice address 3600 West Lincoln Way, Ames, IA, 50010
Phone (515) 663-4888
Fax (515) 956-4199
Enumeration date Oct 25, 2005
Last updated in NPPES Nov 13, 2020
Taxonomy & licenses
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 0211417 | Medicaid | IA | - |
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.
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 Daniel Koenig?
Daniel Koenig is registered in NPPES with the primary taxonomy of Optometrist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-11-13.