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Dr. Brian Grus, MD

Dr. Brian Grus, MD

Age 55 Internal Medicine M
(28) 28 reviews

Telehealth available

Accepting New Patients


Dr. Brian Grus, MD is a internal medicine specialist in O Fallon, MO. Dr. Grus completed a residency at Barnes/Washington U. He currently practices at BJC Medical Group at Progress West - Primary Care and is affiliated with Progress West Hospital. He accepts multiple insurance plans. Dr. Grus is board certified in Internal Medicine.


  • Barnes/Washington U, Residency Hospital — 1995
  • Barnes/Washington U, Internship Hospital — 1993

Insurance Accepted

  • Aetna
  • Cigna
  • First Health (Coventry Health Care)
  • HAP Insurance
  • Humana
  • MultiPlan

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New Patient? (636) 492-5646
  1. BJC Medical Group at Progress West - Primary Care

    1. 1
      BJC Medical Group at Progress West - Primary Care
      20 Progress Point Pkwy Ste 108, O Fallon, MO 63368 Call
      Existing Patients: (636) 344-2400
      New Patients:
      (636) 492-5646

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Dr Grus is my Primary Care Physician. He is patient, kind and a great listener. I feel he takes my concerns very seriously. The others who work in his office could not be nicer or more helpful.
Don — Nov 21, 2019
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Dr. Brian Grus, MD
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Frequently Asked Questions

Dr. Grus frequently treats Dyslipidemia, Diabetic Polyneuropathy, and Polyneuropathy.  

Hospital Affiliations

  • Progress West Hospital
  • Barnes-Jewish St. Peters Hospital
  • Missouri Baptist Medical Center