NPI Portal NPI Lookup & Verification

Arek Wiktor

Arek Wiktor is a Surgery Physician provider (Surgery) practicing in Aurora, CO, registered in the NPPES registry with NPI 1720203383 since 2007.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI 1720203383
Entity type Individual (Type 1)
Name Arek Wiktor
Sex Male
Practice address Aurora, CO, 80045
Phone 7208480000
Enumeration date 2007-04-17
Last updated in NPPES 2018-03-17

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

Taxonomy & licenses

Taxonomy code Specialty Primary License State
208600000X Surgery Physician Primary DR.0054013 CO
Copy-ready billing details
Provider: Arek Wiktor
NPI: 1720203383
Taxonomy: 208600000X (Surgery Physician)
Address: Aurora, CO, 80045

Other providers at this practice address

NPI Name Type Specialty Location
1952228025 Joseline Torres Fernandez Individual Oncology Registered Nurse Aurora, CO
1326965831 Jenae Powell Individual Pharmacist Aurora, CO
1477556694 Mark Levine Individual Internal Medicine Physician Aurora, CO
1346242500 Sunny Linnebur Individual Pharmacist Aurora, CO
1427052414 Carol Dittmann Individual Anatomic Pathology & Clinical Pathology Physician Aurora, CO
1336143106 David Nagel Individual Radiation Oncology Physician Aurora, CO
1720083140 Sean Oser Individual Family Medicine Physician Aurora, CO
1265437594 Tamara Oser Individual Family Medicine Physician Aurora, CO

Verify this record

Cross-check NPI 1720203383 against the authoritative CMS record: view Arek Wiktor 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 Arek Wiktor?
Arek Wiktor is registered in NPPES with the primary taxonomy of Surgery Physician. 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 2018-03-17.