Summary

I try to treat all patients as I would like myself to be treated.

Special Interests: running, biking
Home City: Brookfield
Marital Status: Married
Number of Children: 3

Quick Facts

  • 4.7
  • 2 insurance plans accepted
  • Northwestern Memorial Hospital
  • 2 written reviews
  • 2 specialties
  • 11 areas of expertise
  • 2 board certifications
  • 1 hospital affiliation
  • 1 office location

Office Location

Gi Associates

1111 Delafield St Ste 212Waukesha, WI 53188

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Dr. Mark W Dreyer, MD
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Dr. Mark W Dreyer, MDDr. Ran Guan, MDDr. Jorge Uzquiano, MDDr. Primo R Tamayo, MD
GastroenterologyHospital MedicineInternal MedicineInternal Medicine
4.7 
3.7 
32 Years of Experience 61 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Waukesha , WIGrafton , WIMilwaukee , WIMilwaukee , WI
Med School: China Medical University Med School: Universidad Mayor De San Andres Facultad De Medicina
Current Profile
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Insurance Plans Accepted by Dr. Mark W Dreyer

  • Aetna
  • UnitedHealthcare

Medical Specialties

Dr. Mark W Dreyer has the following 2 specialties

Specialty Expertise

Dr. Mark W Dreyer has the following 11 areas of expertise

  • Abdominal Pain
  • Acid Reflux Disease (Gastroesophageal Reflux / GERD)
  • Acid Reflux Disease (GERD)
  • Celiac Disease
  • Colonoscopy
  • Constipation
  • Hemorrhoids
  • Hepatitis C
  • Internal Medicine
  • Irritable Bowel Syndrome (IBS)
  • Ulcerative Colitis

Certifications, License, & Education

EDUCATION & TRAINING

Residency

Northwestern Memorial Hospital

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Frequently Asked Questions

Does Dr. Mark Dreyer accept virtual/telehealth appointments?
Dr. Mark Dreyer has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Is Dr. Mark Dreyer accepting new patients?
Dr. Mark Dreyer has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
How can I make an appointment with Dr. Mark Dreyer?
You can find contact information for Dr. Mark Dreyer here on Vitals.
Which hospitals is Dr. Mark Dreyer affiliated with?
Dr. Mark Dreyer is affiliated with Prohealth Oconomowoc Memorial Hospital.
Where is Dr. Mark Dreyer's office located?
Dr. Mark Dreyer's office is located at 1111 Delafield St Ste 212, Waukesha, WI, 53188.

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