Internist Office

Michigan Avenue Internists, LLC
200 S Michigan Avenue, Suite 1400
Chicago , IL 60604
312-922-7449 fax

Email: [email protected]

  • Email is only checked Mon-Fri, during the hours of 9am-4pm
  • Please limit emails to administrative questions only.
  • Please do not email appointment requests, medical questions, or refill requests.
  • Existing patients please use your MyChart account.

Office Hours

Monday: 08:00 AM - 04:30 PM
Tuesday: 08:00 AM - 04:30 PM
Wednesday: 08:00 AM - 04:30 PM
Thursday: 08:00 AM - 04:30 PM
Friday: 08:00 AM - 04:30 PM
Saturday: Closed
Sunday: Closed

Click here for door to door driving directions

Insurance and Billing

We accept numerous insurance plans all of which are listed below. If your insurance is not listed, please contact your insurance provider and ask if our group, or specifically the physician you are interested in seeing, is “in network.”

Please note that Dr Costas, Dr Desai, Dr Ewert, Dr Hiotis, Dr Vermylen and Dr TerMolen are not an "in-network" physicians except for Medicare – please see their profiles for more information regarding their unique practices.


  • Aetna (PPO, POS, HMO)
  • Beech Street (PPO)
  • Blue Cross Blue Shield (PPO)
  • (we do not accept  BCBS HMO or Blue Choice)
  • CIGNA/Great West (PPO, POS, HMO)
  • First Health (PPO)
  • Humana Choice Care (PPO)
  • Humana Commercial (EPO/POS)
  • Multiplan (PPO)
  • PHCS (PPO)
  • Preferred Network Access (PPO)
  • Preferred Plan Inc. (PPO)
  • Private Healthcare Systems (PPO, POS)
  • Tricare
  • United Healthcare (PPO, POS, HMO)

We suggest that if your insurance does not appear on this list that you call your insurance provider and ask if our practice, or specifically the physician you are going to see, is in-network.

Payment Options

We accept checks, cash or credit cards.