Is this information incorrect? This page shows public data from NPPES. Update your record in NPPES and this page will update automatically within 7 days.
Individual
MARK FARRELL O'BRIEN
Active
Individual
MARK FARRELL O'BRIEN
Active
Sole proprietor
Yes
Provider details
NPI number
Gender
Man
Credential
MS, LCPC
Taxonomy
Speciality
Code
Description
License number
State
101YP2500X
Professional Counselor
Primary
180008079
IL
Other
Enumeration date
05/13/2010
Last updated
09/20/2019
About Stedi
Stedi is the only programmable healthcare clearinghouse. You can use Stedi's APIs to process eligibility checks, claims, remits, and more.
Sign up