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Organization
ONSITE PHYSICIAN SERVICES OF ILLINOIS, S.C.
Active
Organization
ONSITE PHYSICIAN SERVICES OF ILLINOIS, S.C.
Active
Organization subpart
No
Provider details
NPI number
Authorized official
DR. ALAN GEGENHEIMER DO (PRESIDENT)
(815) 363-9500
Entity
Organization
Contact information
Practice address
16052 INDUSTRIAL PKWY, MIDDLEFIELD, OH 44062-9382
(815) 363-9500
Mailing address
4805 PRIME PKWY, MCHENRY, IL 60050-7002
Taxonomy
Speciality
Code
Description
License number
State
207Q00000X
Family Medicine Physician
Primary
—
—
Other
Enumeration date
11/11/2025
Last updated
11/11/2025
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