Dr. Mark Niedfeldt, MD
DPC Family Medicine physician, Mequon, WI
Colab Concierge PhysiciansDr. Mark Niedfeldt is a family medicine and sports medicine physician and the founder of Colab Concierge Physicians in Mequon.
Facts on this page last checked October 2026. How we check doctors
About Dr. Niedfeldt
Dr. Niedfeldt is a family medicine and sports medicine physician with Colab Concierge Physicians in Mequon, which he founded. He graduated magna cum laude from the University of Wisconsin-Whitewater, earned his MD at the Medical College of Wisconsin and completed a family medicine residency there. Faculty and peers nominated him Chief Resident during residency, and he also completed a fellowship in primary care sports medicine at the Medical College of Wisconsin.
He previously served as Associate Professor and Associate Director of the Primary Care Sports Medicine Fellowship program at the Medical College of Wisconsin. He holds an appointment there as Associate Clinical Professor and teaches medical students, residents and sports medicine fellows. Dr. Niedfeldt has been a team physician for the Milwaukee Brewers since 1997, and he is also team physician for the US National Snowboarding and Freeskiing Teams, Wisconsin Lutheran College and Concordia University.
He served as Milwaukee Bucks Chief Medical Physician over the 2015-2016 and 2016-2017 seasons. He has cared for multiple Olympic medalists, World Cup Champions and X-Games medalists. In his spare time he enjoys biking, running and track time on a Ducati.
Membership and fees
The individual membership at Colab Concierge Physicians starts at $2,400, and members can pay monthly, quarterly or annually.
The retainer covers unlimited visits and access to the doctor, and membership includes same or next day appointments, house or office calls when necessary, and referral coordination with specialists.
Membership does not replace insurance, which is still needed for hospitalizations, surgeries, diagnostic tests and specialist visits.
Fees vary by plan. Ask the practice.
Education and credentials
Hospital and practice affiliations
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Recognition and research
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Patient reviews
Questions patients ask
Does Dr. Niedfeldt take insurance, or offer a membership?
Dr. Niedfeldt practices with Colab Concierge Physicians, which describes its model as direct primary care, sometimes called concierge medicine. Membership does not replace insurance, which is still needed for hospitalizations, surgeries, diagnostic tests and specialist visits.
How much does a membership at Colab Concierge Physicians cost?
The individual membership starts at $2,400, and members can pay monthly, quarterly or annually.
Where did Dr. Niedfeldt train?
Dr. Niedfeldt earned his MD and completed a family medicine residency and a primary care sports medicine fellowship at the Medical College of Wisconsin.
Where is Dr. Niedfeldt's office?
Dr. Niedfeldt practices with Colab Concierge Physicians in Mequon.
What ages does Colab Concierge Physicians serve?
Colab's office is equipped to serve patients over age 5.
Does Dr. Niedfeldt have sports medicine training?
Dr. Niedfeldt has specialized training in sports medicine, is trained as a family practice physician and regularly handles all aspects of family practice care.
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