John Anderson D.O. » Physician Directory Please register to view private contact information. If you would like to add contact information please email me. Please specify if you would like to limit access to logged in users. Main Physician Directory Go back to directory. Add to Address Book. John Anderson D.O. Centegra Physician Care-McHenry-B202Internal MedicineWork 4309 Medical Center Dr B202 McHenry IL 60050-8419 work Work Phone: 815- 338-6600work Work Fax: 815- 344-8957workfax Categories: Internal Medicine Updated 6 months ago.