NPI Portal NPI Lookup & Verification

Corey Marks

Corey Marks is a Professional Counselor provider (Counselor) practicing in Darby, PA, registered in the NPPES registry with NPI 1992403141 since 2023.

✓ Active NPI ✓ Valid NPI checksum

NPI 1992403141
Entity type Individual (Type 1)
Name Corey Marks
Sex Male
Practice address 629 COLWYN AVE, Darby, PA, 19023
Phone 2672698751
Enumeration date 2023-02-17
Last updated in NPPES 2023-02-17

Taxonomy & licenses

Taxonomy code Specialty Primary License State
101Y00000X Counselor Secondary
101YA0400X Addiction (Substance Use Disorder) Counselor Secondary
101YM0800X Mental Health Counselor Secondary
101YP2500X Professional Counselor Primary
Copy-ready billing details
Provider: Corey Marks
NPI: 1992403141
Taxonomy: 101YP2500X (Professional Counselor)
Address: 629 COLWYN AVE, Darby, PA, 19023

Verify this record

Cross-check NPI 1992403141 against the authoritative CMS record: view Corey Marks 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

Where does Corey Marks practice?
The practice location on file with NPPES is in Darby, PA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Corey Marks?
The National Provider Identifier (NPI) for Corey Marks is 1992403141, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2023-02-17.