About
Dr. Gregory Holton is a board-certified internist and geriatrician who founded Dune Shores Health in Grand Haven, Michigan. He grew up in a retirement community in East Tennessee, where early experiences with his grandmother's dementia and his mother's stroke drew him toward medicine. S. in Biomedical Engineering from Washington University in St. Louis, graduating at the top of his class. He then completed medical school, an internal medicine residency, and a geriatrics fellowship at Baylor College of Medicine in Houston, Texas, training there from 2010 to 2018.
After relocating to Grand Haven in 2018, Dr. Holton led the Trinity Health Muskegon Internal Medicine Residency Clinic and served as lead physician for Westshore Internal Medicine. His peers elected him Department Chair of Primary Care. In practice, he listens carefully, partners with patients on their health goals, and coordinates actively with specialists. He holds a deep interest in Lifestyle Medicine, holistic care, hypertension, and preventive health. Outside the clinic, he runs with his family in Grand Haven, has completed five marathons, and plays classical piano. He and his wife Diane Stephanie Holton, a chemical engineer and Calvin University graduate, met during his training in Houston.
Education & Training
Undergraduate
Washington University in St. Louis, B.S. Biomedical Engineering
Medical School
Baylor College of Medicine
Residency
Internal Medicine, Baylor College of Medicine
Fellowship
Geriatrics, Baylor College of Medicine
Conditions Treated
Who is Dr. Holton right for?
Dr. Holton is a strong fit for adults managing chronic conditions such as hypertension, high cholesterol, diabetes, or heart disease. Older adults and retirees benefit especially from his fellowship-level training in geriatric medicine. Patients who want a physician to coordinate their specialist care and guide them through complex health decisions will find his approach well-suited to their needs. He also works well with uninsured patients or those on high-deductible plans who want transparent, flat-fee primary care. Adults seeking a doctor with deep roots in preventive and lifestyle medicine will connect with his whole-person philosophy.
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Frequently Asked Questions
Dr. Holton treats a broad range of adult and geriatric conditions. His clinical focus includes hypertension, high cholesterol, diabetes, heart disease, atherosclerosis, dementia, and sepsis. He also brings a strong preventive and lifestyle medicine lens to chronic disease management.
Dr. Holton holds training in both internal medicine and geriatric medicine, completing his residency and fellowship at Baylor College of Medicine. His clinical background spans over a decade of attending physician practice in West Michigan.
Dr. Holton practices shared decision-making. He listens to all of a patient's concerns, discusses honest prognosis, and presents treatment options with clear risks and benefits. He partners with patients on their health journey rather than directing care from the top down. He also encourages second opinions when they serve the patient's interests.
Dr. Holton acts as the quarterback of his patients' specialist care. He communicates directly with specialists on behalf of his patients and helps shape the care team around each patient's priorities. He maintains connections with Trinity Health Muskegon and Trinity Health Grand Haven for hospitalizations when needed.
Dr. Holton completed a full geriatrics fellowship at Baylor College of Medicine after his internal medicine residency. He grew up around older adults in a retirement community in East Tennessee, and personal family experiences with dementia and stroke deepened his commitment to elder care. Geriatric medicine remains a central part of his clinical focus at Dune Shores Health.
Yes. Dr. Holton integrates Lifestyle Medicine across his clinical work. He guides patients through the six pillars: Nutrition, Physical Activity, Sleep, Stress Management, Social Connections, and Avoidance of Risky Substances. He views behavioral habits as foundational to long-term health and chronic disease prevention.
Dr. Holton trained in Houston, Texas at Baylor College of Medicine from 2010 to 2018. He and his wife moved to Grand Haven in 2018. He spent several years building his attending physician career in the Muskegon and West Michigan area before founding Dune Shores Health as an independent practice.
Patients consistently describe Dr. Holton as thorough, calm, compassionate, and current in his medical knowledge. One long-time patient followed him from Trinity Health to Dune Shores Health specifically to continue care with him. Another credited him with guiding her parents' medical journey with both clinical excellence and deep compassion.
Doctor profile last updated April 10, 2026