NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mariel Gardiner, LCPC

Professional Counselor in Chicago, IL · enumerated 2019 · practices at Accepting LLC.

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

National Provider Identifier

1366004210

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Mariel Gardiner
Credential LCPC
Sex Female
Practice address 107 W Van Buren St Ste 205, Chicago, IL, 60605
Phone (312) 373-0782
Enumeration date Jul 1, 2019
Last updated in NPPES Oct 4, 2022

Taxonomy & licenses

101YP2500X Professional Counselor Behavioral Health & Social Service Providers · License 180.014590 Secondary
101YP2500X Professional Counselor Behavioral Health & Social Service Providers · License 178014920 (IL) Secondary
101YP2500X Professional Counselor Behavioral Health & Social Service Providers · License 180014590 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 Mariel Gardiner?
The National Provider Identifier (NPI) for Mariel Gardiner is 1366004210, a Type 1 (individual) record in the CMS NPPES registry.
Where does Mariel Gardiner practice?
The practice location on file with NPPES is in Chicago, 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 2022-10-04.