Individual
MICHAEL J. HARTMANN
Active
Sole proprietor
No
Provider details
NPI number
Gender
Man
Credential
MD
Contact information
Practice address
801 S WASHINGTON ST, NAPERVILLE, IL 60540-7430
(630) 527-3000
Mailing address
1000 MINERAL POINT AVE, JANESVILLE, WI 53548-2940
(608) 756-6111
(608) 756-6177
Taxonomy
Speciality
Code
Description
License number
State
207P00000X
Emergency Medicine Physician
Primary
036109982
IL
207P00000X
Emergency Medicine Physician
60901-20
WI
Other
Other identifiers
Code
Description
Identifier
Issuer
State
01
—
000054176-K400095937
WI MEDICARE
WI
05
—
036109982
—
IL
01
—
1013073253
BCBSWI
WI
05
—
1013073253
—
WI
01
—
HARTMMI4
MERCYCARE INSURANCE
WI
Enumeration date
12/30/2006
Last updated
11/25/2025
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