Individual
DR. CHAD R. JOHNSTON
Active
Sole proprietor
No
Provider details
NPI number
Gender
Man
Credential
MD
Contact information
Practice address
916 N WASHINGTON ST, DU QUOIN, IL 62832-1200
(618) 542-2146
Mailing address
900 N WASHINGTON ST, DU QUOIN, IL 62832-1233
(618) 542-2146
(618) 542-4756
Taxonomy
Speciality
Code
Description
License number
State
207R00000X
Internal Medicine Physician
Primary
036119004
IL
207R00000X
Internal Medicine Physician
A95435
CA
207RA0401X
Addiction Medicine (Internal Medicine) Physician
0058849
CO
Other
Enumeration date
11/08/2006
Last updated
12/02/2025
About Stedi
Stedi is the only programmable healthcare clearinghouse. You can use Stedi's APIs to process eligibility checks, claims, remits, and more.
Contact us