Individual
MARK C JOHNSON
Active
Sole proprietor
No
Provider details
NPI number
Gender
Man
Credential
MD
Contact information
Practice address
910 N EISENHOWER AVE, MASON CITY, IA 50401-2800
(641) 428-7799
(641) 428-5274
Mailing address
621 S ILLINOIS AVE, SUITE 103, MASON CITY, IA 50401-5489
(641) 428-3041
(641) 428-3059
Taxonomy
Speciality
Code
Description
License number
State
207R00000X
Internal Medicine Physician
Primary
21527
IA
Other
Enumeration date
07/31/2006
Last updated
07/08/2025
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