About Us

Our mission is to provide high-quality, affordable healthcare for the Fox Valley in an environment that promotes access and communication between our patients (that’s you) and their provider (that’s us).

Convenient, Expert Healthcare at One Affordable Price

New MD is the culmination of a desire to see patients put first. After over 35 years of combined experience in healthcare, we had seen far too many people avoiding healthcare for fear of cost, inconvenience, and external hands (insurance companies) dictating how they are treated.

That’s why we adopted the Direct Primary Care model — to make it fast, easy, and affordable to get the care you need, whenever and wherever you need it.


Expert Staff.
Professional Care.

With over 35 years of combined experience in healthcare, we are the team of experts that you need. And we’re never more than a call or a text away.

Mary Zack, RN

Mary Zack, RN

Executive Director

Mary has dual Bachelor’s degrees in Nursing and Exercise Physiology. She is currently finishing her Master’s in Healthcare Administration. As a life-long Wisconsinite, she is passionate about Midwest values and quality healthcare.

When not bringing awareness to the Direct Primary Care model, she enjoys all Wisconsin sports, her family, and the changing seasons.

Dr. Bobby Yun

Dr. Bobby Yun


Bobby attended UW-Madison Medical School. His residency training included surgery, anesthesiology (UCLA), and he is Board Certified in Family Medicine. He has centered his life around practicing medicine in the Fox Valley — spending over 15 years of as Medical Director of urgent care clinics in the Fox Valley and Green Bay areas.

His practice philosophy is simple: provide the highest quality healthcare that is both accessible and affordable to hard-working families.

Outside of his medical practice, he enjoys supporting the activities of his three children and family, racquet sports, teaching Taekwondo and the outdoors.

Chat With An Expert. 

Questions about your healthcare needs or how we can help you? We're here for you.

Why Choose Us


Experienced Staff

We have over 35 years of direct experience in healthcare. That's a lot of years.


Direct Doctor Access

Get unlimited help when you really need it via call, text, email, or your Telehealth portal.


Convenient Appointments

We offer same and next-day appointments. Because you can't afford to put your health on hold while you wait for an available appointment.


No Suprise Bills

Your low monthly membership fee covers unlimited access. Yes, that's it.

Walk-In Appointments Available Daily

Need immediate care? From broken bones, to strained backs — we offer immediate, urgent care for all of life’s little medical emergencies. All in-house testing and minor procedures are included in your visit price. No extra fees.

Contact us

Call Or Text

(920) 297-0512

Email Us


Our Location

3329 Express Ct.
Appleton, WI 54915

Get in touch