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Dr. Johnathon Markus, MD

Dr. Johnathon Markus, MD

Age 36 Gastroenterology M
(2) 2 reviews


Dr. Johnathon Markus, MD is a Gastroenterology Specialist in Detroit, MI. Dr. Markus studied at FORT WAYNE COLLEGE OF MEDICINE. They currently practice at Rheumatology & Gastroenterology Assoc. PC and are affiliated with Henry Ford West Bloomfield Hospital and Henry Ford Hospital. Dr. Markus is board certified in Gastroenterology and accepts accepts multiple insurance plans.



Insurance Accepted

  • Anthem
  • Anthem Blue Cross Blue Shield
  • Blue Cross Blue Shield
  • CareFirst Blue Cross Blue Shield
  • Cigna
  • Humana
  • Priority Health

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These providers are on the medical staff of Cleveland Clinic
These providers are on the medical staff of Cleveland Clinic.

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Mar 13, 2022
My husband had been sick for months. He was going through many tests. The waiting lists for an appointment were long throughout the area. With his doctor's help he was able to squeeze him in. He was very nice, very friendly. He called me into the office after he preformed the procedure. Doctor Markus explained the results very well and he really cared. He took many samples of the biopsy. He was sure it was cancer. He listened well to our questions and answered them well. The very next day he called us himself to give us the the bad news. He is professional, friendly and really nice Doctor. My next colonoscopy I will be going to him. I highly recommend him to anyone.
Pam Harrison-Hardy — Mar 13, 2022
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Frequently Asked Questions

Find contact information here to make an appointment.

A list of accepted insurance providers is available on the Sharecare insurance check. It is always a good idea to verify your insurance when making an appointment.

New patients are generally accepted by Dr. Johnathon Markus, MD. To arrange an appointment, call the number on Dr. Markus' profile.

Dr. Markus frequently treats the following conditions: Gastroparesis, Gastritis and Esophagitis. See more on Sharecare.

Dr. Johnathon Markus, MD is affiliated with Henry Ford West Bloomfield Hospital and Henry Ford Hospital.

Yes, Dr. Johnathon Markus, MD holds board certification in Gastroenterology and Internal Medicine.

Hospital Affiliations

  • Henry Ford West Bloomfield Hospital
  • Henry Ford Hospital


  1. Rheumatology & Gastroenterology Assoc. PC

    1. 1
      Hfmg - Colon and Rectal Surgery - M
      2799 W Grand Blvd # K7, Detroit, MI 48202 (313) 916-2600