![]() James P. Ostrenga, M.D. Internal Medicine - Cardiovascular Disease Medicare: Not Enrolled in Medicare Practice Location: 100 Spalding Drive, Suite 212, Naperville, IL 60540 Phone: 630-357-4111 Fax: 630-357-4644 |
![]() William Joseph Stephan, MD Internal Medicine - Cardiovascular Disease Medicare: Accepting Medicare Assignments Practice Location: 10 Martin Ave Ste 200, Naperville, IL 60540 Phone: 630-600-0700 Fax: 630-600-0701 |