NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Theresa Ann Oles, MSN

Certified Registered Nurse Anesthetist in Melrose Park, IL · enumerated 2007.

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

National Provider Identifier

1770763252

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Ms. Theresa Ann Oles
Credential MSN
Sex Female
Practice address 701 W North Ave, Melrose Park, IL, 60160
Enumeration date Nov 13, 2007
Last updated in NPPES Mar 14, 2013

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 041-330131 (IL) Secondary
367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers · License 209.006935 (IL) Primary

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

What is the NPI number for Theresa Oles?
The National Provider Identifier (NPI) for Theresa Oles is 1770763252, a Type 1 (individual) record in the CMS NPPES registry.
Where does Theresa Oles practice?
The practice location on file with NPPES is in Melrose Park, IL. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-03-14.