Our Simplicity Health Team
“Doctors are so quick to prescribe medication these days. Rarely do they ever try to stop those medications. Often times, those medications aren’t needed or only needed temporarily. The patient is rarely told what they can do to try to fix their problem. Patients will work hard to do what they need to do to fix their medical problems; they just need to know how to do it. They don’t want to have to take medications. One of the most gratifying things to say to a patient is:
‘Congratulations, because of your efforts, we don’t need this medication anymore.’”
— Dr. Opperman
Meet the Team
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Lindsay Marton, MD
FAMILY MEDICINE
“Dr. Marton was fantastic. I have white coat syndrome and get a lot of anxiety going to the doctor, and having to find a new doctor after moving was not fun for me. But she took her time, had great bedside manner and was very thorough.”
“Dr. Marton demonstrated a thoroughness of care and attentiveness. She asked thoughtful questions in a helpful and engaging way. I feel very fortunate to have her as my physician.”
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Dr. Melissa Butler
INTERNAL MEDICINE
“Dr. Butler is an exceptional physician. She cares about me as a person and not just another patient. She's the BEST!!”
“Dr. Butler is always extremely professional, caring, and very thorough. She is one of the best primary care physicians I have come in contact with.”
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Dr. Josh Wenzell
FAMILY MEDICINE
“Dr. Josh Wenzell is an excellent doctor, someone who truly listens to his patients, who explains what he’s doing and why he’s doing it, and then generously shares relevant research with his patients. He is what most patients hope to see in their doctor. Pretty old-fashioned rock-solid virtues. I’ve been around hundreds of doctors for several decades, having been a hospital psychologist. This doctor is special. I’m glad Dr. Wenzell is my doctor!” -D. Bromberg
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Dr. Charles Opperman
INTERNAL MEDICINE
“Best health care experience of my life! Dr. O bends over backward to give patients the personalized treatment and medical advice they need. He goes above and beyond to care for patients and give them options for treatment depending on what is important to them...” -M. Hamilton
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Sara
Director of Operations & Patient Experience
Sara grew up in Maine and still loves everything about her home state—especially lobster and whoopie pies. Before joining Simplicity Health, she worked as a school counselor in both elementary and high school settings, helping students and families navigate challenges with empathy and care.
As Director of Operations & Patient Experience, Sara plays a central role in how the practice functions day to day. She oversees operations, supports the team, and ensures that every patient interaction—from scheduling to follow-up—is smooth, responsive, and thoughtful. Her background in counseling brings a unique perspective to her work, allowing her to approach both patients and staff with strong communication, understanding, and problem-solving skills.
Sara values the direct primary care model for the meaningful relationships it allows her to build with patients and families—something she believes truly sets Simplicity Health apart.
Outside of work, Sara enjoys reading, spending time with her family, and being a mom. She’s also a proud dog mom to her Boston Terrier, Arnie.
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Michelle
Licensed Practical Nurse (LPN)
With 20 years of nursing experience, Michelle brings both clinical expertise and genuine compassion to her work each day. She has cared for patients across a variety of settings and is a trusted, steady presence in the office.
Michelle is known for her warm, approachable personality and her ability to put patients at ease. She takes the time to listen, answer questions clearly, and make sure patients feel comfortable and cared for throughout their visit. Her teammates rely on her just as much as patients do, as she’s always willing to step in and help wherever needed.
She has worked alongside Dr. Opperman since before the founding of Simplicity Health, reflecting a deep level of loyalty, dedication, and commitment to both the team and the patients they serve. Michelle is someone the practice can consistently count on, and her reliability and work ethic are a big part of what keeps things running smoothly day to day.
She values the direct primary care model for the relationships it allows her to build with patients and the time it gives her to provide more thoughtful, personalized care.
Outside of work, Michelle enjoys spending time with her family. She loves music, being outdoors, and making the most of time with family and friends.
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Grace
Medical Assistant
Grace grew up in West Chester, Ohio and is passionate about healthcare and patient care. She plays an important role in supporting both patients and providers at Simplicity Health and helps ensure each visit runs smoothly from start to finish.
Grace is known for her positive attitude, attention to detail, and friendly, approachable nature. Patients appreciate how welcoming she is and how easily she helps them feel comfortable in the office.
She is also a strong advocate for patients and is often the person the team turns to when a situation requires clear communication and follow-through. Grace handles challenges with poise and professionalism, working to ensure patients are heard and well cared for every step of the way.
She enjoys working in a direct primary care setting where she can build meaningful connections with patients and be part of a more personalized approach to medicine.
Grace plans to apply to physician assistant school in the future, reflecting her strong work ethic and long-term commitment to a career in healthcare.
Outside of work, Grace enjoys pickleball, reading, hiking, kayaking, and traveling.
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Mandy
Medical Assistant
Mandy brings over 25 years of experience in primary care and a deep appreciation for building lasting relationships with patients and their families. She has spent her career in patient-focused environments and is a trusted, steady presence in the office.
Mandy is known for her warm, calming demeanor and her ability to put patients at ease—especially in moments when they may feel anxious or unsure. She is highly responsive to patient needs and has a natural intuition for how to care for people in a thoughtful, reassuring way.
She’s also known around the office as the go-to expert for difficult blood draws. When others are having trouble, Mandy is the one the team calls—patients appreciate her skill, confidence, and gentle approach.
Mandy enjoys working in a direct primary care setting where she has the time to truly connect with patients and build meaningful, long-term relationships.
Outside of work, Mandy is active in her church, where she teaches kindergarten Sunday School. She and her husband have two young adult children and enjoy spending time outdoors together—often playing yard games like wiffle ball and bocce ball or simply enjoying time as a family.
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Lindsey
Patient Experience Coordinator
Lindsey brings four years of experience in medical office settings, having worked in optometry, orthopedics, and pulmonary medicine. In these roles, she assisted with both front desk responsibilities and patient care, including rooming patients and helping ensure visits ran smoothly from start to finish.
She is known for her warm, empathetic approach and her ability to connect with patients in a genuine and thoughtful way. Whether she’s welcoming someone at the front desk or assisting during their visit, Lindsey helps create a comfortable, positive experience for patients and families.
She enjoys working in a direct primary care setting where relationships matter and care can be more personal and patient-centered.
Outside of her clinical work, Lindsey is also the team’s resident artist. She’s often adding creative, seasonal designs to pharmacy bags—something patients and staff alike have come to look forward to.
In her free time, Lindsey enjoys hiking and exploring—especially near the ocean or coast—and is always up for a new adventure. She values personal growth and her faith, and is deeply devoted to her family and pets. She’s also a big Taylor Swift fan, so feel free to compare favorite songs when you see her in the office.
Lindsay Marton, MD
Dr. Lindsay Marton is a board-certified family medicine physician who provides care for patients of all ages. She focuses on prevention, chronic disease management, and the full spectrum of primary care, with a special interest in women’s health. Dr. Marton views herself as a partner and advocate for her patients, helping them navigate the health care system while creating a space where they feel comfortable asking questions and discussing concerns. She is passionate about helping patients build healthy, sustainable habits: especially finding physical activities they genuinely enjoy and can maintain consistently. One of her main goals is to help patients improve not just their lifespan, but their health span, so they can stay active, independent, and well as they age.
A native to Loveland, Ohio, she earned her medical degree from the University of Cincinnati. She completed her residency at Bethesda Family Residency, where she served as chief resident.
Dr. Marton also values service beyond the exam room. She has participated in a medical mission trip to Belize and hopes to continue similar meaningful work in the future. Outside of medicine, she enjoys hiking, kayaking, playing tennis, reading, spending time outdoors, and preparing healthy meals for family and friends.
Melissa Butler, MD, FACP
Dr. Melissa Butler is a board-certified internal medicine physician with extensive experience in both primary care and medical education. She specializes in preventive care, chronic disease management, and evidence-based medicine, with a strong commitment to patient-centered care. Dr. Butler is passionate about medical education and has served as teaching faculty for over a decade at Wright State University Boonshoft School of Medicine and the Kettering Medical Center Residency program, mentoring future physicians.
Dr. Butler was born in Minneapolis, Minnesota, and earned her medical degree from Eastern Virginia Medical School. She completed her residency at Kettering Medical Center, where she served as chief resident. She has also achieved the distinction of Fellow of the American College of Physicians (FACP), a designation recognizing excellence in clinical practice, leadership, and contributions to internal medicine.
With nearly 10 publications in respected medical journals, Dr. Butler remains actively engaged in academic medicine. Outside of work, she enjoys running and has participated in the Boston Marathon numerous times. She also loves traveling internationally and recently attended the Summer Olympics in Paris. Most of all, she enjoys spending time with her family and supporting her children as they pursue esteemed career paths.
Josh Wenzell, MD
Dr. Wenzell is a board-certified family medicine physician with experience in primary care settings for patients of all ages. He provides preventative screening and interventions (e.g. well child checks, cancer screening, heart disease prevention) along with chronic disease management (e.g. diabetes, hypertension, depression). Dr. Wenzell enjoys applying Evidence Based Medicine, empowering patients to incorporate Shared decision-making*, and decreasing or deprescribing unnecessary medications and medical interventions. He enjoys the Direct Primary Care model which allows him ample time to understand his patients and their values and to incorporate them into an overall wellness plan.
Dr. Wenzell is from Enon, OH and completed his Bachelor of Science from Furman University, Medical Doctorate from Wright State University - Boonshoft School of Medicine, and residency at Bethesda Family Practice in Cincinnati, OH where he served as chief resident. He enjoys spending time with his family, playing board games, reading (mainly Sci-Fi and medical history), playing music (piano and French horn), and traveling around the world.
Dr. Wenzell is also fluent in Spanish.
*Shared decision-making means incorporating the best available scientific evidence with each individual patient’s values and priorities. If a medication or other intervention has not been shown to improve a patient’s quantity or quality of life, then it should not be used outside of an experimental setting, which is a hallmark of Evidence Based Medicine.
Charles Opperman, MD, FACP
Dr. Opperman is a board-certified internal medicine physician and founder of Simplicity Health Direct Primary Care.
Dr. Opperman is especially focused on managing diabetes, cardiology concerns, and obesity. While these fields are of special interest to him, he also has experience treating all other aspects of adult medicine. Dr. Opperman values spending time with his patients to actually get to know them as people, not just their medical conditions.
Dr. Opperman has served as clinical teaching faculty for Kettering Medical Center Internal Medicine Residency program along with teaching assignments with Wright State University and Ohio University Schools of Medicine.
Dr. Opperman is a graduate of the University of Dayton and completed his residency training at Kettering Medical Center. He enjoys spending time with his family, golfing and most other sports, and is an avid Dayton Flyers basketball fan. He is an active member of his church and frequently volunteers in community outreach programs.