Douglas Marx, DO

Family Medicine, Primary Care
Staff Physician
Accepting New Patients

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Germantown Health Center 262-253-5060
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I believe that team based collaborative care is the key to helping patients achieve their health goals. To that end, I strive to tailor my advice to each individual, involving patients in their health care decisions. We then employ a team approach to support those goals. My office staff, medical assistants, nurses, care coordinators, advanced practice partners act as a willing and eager cast to help patients succeed. Come see what a team approach can do for your health!

I believe that team based collaborative care is the key to helping patients achieve their health goals. To that end, I strive to tailor my advice to each individual, involving patients in their…
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Dr. Marx serves in a leadership role as a Regional Medical Officer within F&MCW Community Physicians.  He is partnered with Monica Braun, NP sharing a robust and dynamic practice.  With over 15 years of experience he is positioned to care for you and your family in a patient centered fashion.


Treatment & Services

Diabetes Care
General Adult Dermatology
Health Maintenance and Prevention
Pediatric and Adolescent Care
Sports and Athletic Injuries and Prevention
Virtual Visit

Diseases & Conditions

Attention Deficit Hyperactivity Disorder (ADHD)
Cholesterol/Lipid Disorders
Depression and Anxiety Disorders
Musculoskeletal Issues
Work Related Injury

Ages Seen


Languages Spoken


Hospital Affiliations

Froedtert Menomonee Falls Hospital


W168 N11237 Western Avenue
Germantown, WI 53022
Germantown Health Center

Education & Training

Chicago College of Osteopathic Medicine - Downers Grove - IL - Doctor of Medicine - (1997)

St. Mary's Hospital - Milwaukee - WI - Residency - (2000)

Board Certifications

Family Medicine

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Note: This doctor or clinician is part of a care team. When viewing availability, you will see appointments for all members of the care team who practice at this location to ensure you can book the appointment most convenient for you.

Please check with your insurance to verify coverage. If scheduling for a COVID-related reason, procedure or injection, or for additional appointment options, call 414-805-6644.

Have you seen this doctor or clinician within the last 3 years?

Patient Reviews

The comments are submitted by patients (or their caregivers) and reflect their views and opinions. The comments are not endorsed by and do not necessarily reflect the views of the Froedtert & the Medical College of Wisconsin health network. Learn more about our survey.*


* Due to high volume, only the most recent 30 comments are displayed for a selected value.

Dr Marx is the best primary care doctor anyone could ask for. Very understanding , knowledgeable, compassionate, and focuses on improving my health. Very professional.
Dr. Marx is amazing! He has done an amazing job of taking care of our family's healthcare for years!!
Very good overall experience with wait times being minimal.
Dr Marx is always compassionate and caring Always a pleasure to see him even if feeling not so great. Answers all my questions + concerns. Excellent doctor.
Dr. Marx has been my physician for many years and he of course did not disappoint! He Is the most caring, knowledgeable, kind and compassionate person - all qualities which make for an excellent doctor. I have highly recommended him for years and will continue to do so.
The care I received was excellent, I would recommend this clinic
From the front reception staff through the entire visit, I continue to be impressed with the professionalism and friendliness of each person I interact with. Dr. Marx and his nurse are thorough and treat me as if I'm the only patient they have.
Best of the Best
Overall good experience, thank you
I was originally scheduled to see another Dr., but because of his illness I was moved to see Dr. Marx. What a random blessing it was. Dr. Marx was very polite, listened, gave me the time I needed to ask questions and explained things clearly and concise. He was respectful of me and my treatment preferences all the while politely giving me the "typical physician recommendations". I was so impressed with his kindness, he might just be my new physician moving forward. It's hard to find physicians now a days who genuinely listen and care and explain and not push you. I never once felt rushed or did he ever indicate he had somewhere else to be. He was great.
The staff at Germantown Clinic is very good..Dr Marks is a outstanding Doctor . You are lucky to have him..
Doug's the best
Very pleasant
Dr.Marx is very personable and a caring capable Dr.
Dr. Marx and his staff are excellent
My husband and I are extremely happy with Dr. Marx and his entire staff. We recommend him always when talking to our friends. We have been also very pleased with the Froedtert's facilities that we have had to visit.
Dr. Marx has been my doctor for a long time. He has been through so much with me and NO matter what happens to me or my health he has always been there to guide me gently and kindly through everything. He is wonderful
First time I saw Dr Marx he was wonderful. I would happily go back to him
Always treats me and my needs. Awesome good listener.
Dr Marx is fantastic. I always feel listened to and like my input matters.
Dr. Marx is always caring and easy to talk to. I feel he genuinely cares about my health.
Dr. Marx is a very caring person and ordered tests to see what the problem is.
Dr marks and his staff are the best at what they do I would recommend him to anyone and I have throughout the years that have known him he's a great doctor and a great person I am recommended Dr marks to all my friends and family and members I will continue recommend him outstanding clinic outstanding service outstanding whatever they do
Dr. Marx and his team are very, personable , professional and knowledgeable. I consider Dr. Marx as a friend, colleague and my trusted primary physician.
Dr. Marx has been my physician for 15 years. He is kind, compassionate and has extremely good listening skills. He asks questions to clarify what I have told him and always, always greets me and leaves with a smile and a handshake. I cannot express how much I respect him as a doctor and a human being. He saved my life on my first visit and continues to work with me and for me when needed. I recommend him to anyone looking for a physician. I wish more of your doctors were like Dr. Marx.
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