About Us

Wellstead Health is a medical practice that melds expertise in functional and traditional medicine to guide patients toward optimal health and our practitioners are experts at what they do.

Meet the Team


Dr. Jeffrey Kreher, wellstead health’s chief medical officer, received his MD from the University of Missouri-Columbia Medical School and did his residency in adult and pediatric medicine at Indiana University, where he served as Chief Resident.


Co-Founder and Chief Medical Officer

Jeff Kreher, MD

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Ashley Mace

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Ashley Mace, CFNP, is a board certified nurse practitioner who specializes in primary care with a focus in functional medicine. She has joined wellstead health's Maine office and will be seeing patients both in person and via telehealth for the Maine patient population. 

CFNP, Board Certified Nurse Practitioner


Bonny Rollender, wellstead’s co-founder, has a 25-year career in health care that has been fueled by a passion for improving the physician-patient experience. She completed graduate studies in healthcare management at Duke University and serves on the Duke-Fuqua School of Business health care advisory board.


Co-Founder and Chief Executive Officer

Bonny Rollender

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Listening is at the core of the wellstead health approach.

Unlike providers in the mainstream healthcare system, we can take the time to really understand each patient's health history, concerns, goals, and lifestyle details, so we can get to the bottom of your issues, design an optimal, personalized treatment program, and work tenaciously together to get results.