NPI Portal NPI Lookup & Verification

Dr. Daniel J Kosterman, OPTOMETRIST

Dr. Daniel J Kosterman is a Optometrist provider (Optometrist) practicing in Eagle River, AK, registered in the NPPES registry with NPI 1386719953 since 2006.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI 1386719953
Entity type Individual (Type 1)
Name Dr. Daniel J Kosterman
Credential OPTOMETRIST
Sex Male
Practice address Eagle River, AK, 99577
Phone 9076968733
Fax 9076968733
Enumeration date 2006-11-21
Last updated in NPPES 2018-05-16

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

Taxonomy code Specialty Primary License State
152W00000X Optometrist Secondary 161 AK
152W00000X Optometrist Primary OPTT161 AK

Other identifiers

Identifier Type State Issuer
OD1161 Medicaid AK
Copy-ready billing details
Provider: Daniel Kosterman, OPTOMETRIST
NPI: 1386719953
Taxonomy: 152W00000X (Optometrist)
Address: Eagle River, AK, 99577

Verify this record

Cross-check NPI 1386719953 against the authoritative CMS record: view Dr. Daniel J Kosterman on the official NPPES registry .

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 or validate an NPI number.

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 Kosterman?
Daniel Kosterman 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 2026-07-11. Provider record last updated 2018-05-16.