Dr. Sierra Unruh is a board-certified optometrist dedicated to providing comprehensive, high-quality vision care to people of all ages. Working with Trinity’s team of eye care specialists, Dr. Unruh provides diagnosis, treatment, and referral for the full range of eye diseases, including cataract, age-related macular degeneration, diabetic retinopathy, and glaucoma. Her expertise includes diagnosing and managing complex eye conditions. She also provides routine eye care exams and is skilled at prescribing glasses and contacts. Dr. Unruh was born and raised in Bismarck. She completed her undergraduate education with a Bachelor of Science in Biology from the University of North Dakota. She received her optometric education and training at the Illinois College of Optometry in Chicago in 2015, followed by a post-doctorate residency at the Memphis VA Medical Center. Following residency, she established an optometric care clinic for veterans in Aberdeen, SD, working in unison with ophthalmologists and primary care providers. She also achieved fellowship with the American Academy of Optometry in 2018. Before joining Trinity Regional Eyecare in summer of 2021, Dr. Unruh provided optometry services with Johnson Eyecare & Eyewear in Minot for several years.
Eye Infections
Jewel L. Sandy, MD
A member of our eye care team at Trinity Regional Eyecare – Western Dakota, Jewel Sandy, MD, is a board-certified ophthalmologist, board-certified, fellowship trained Oculoplastics Specialist., Orbital, Reconstructive Surgery. She provides high-quality medical and surgical care to patients for the full range of eye conditions and is specially trained to perform reconstructive and cosmetic surgery of the eyelids, eye socket and face. Dr. Sandy earned her Doctor of Medicine degree at Loma Linda University School of Medicine in California and completed her ophthalmology residency at UAB Callahan Eye Hospital at the University of Alabama Birmingham. In addition to her residency, she spent an additional two years of advanced fellowship training at Dean McGee Eye Institute in Oklahoma and Allegheny Ophthalmic & Orbital Associates, PC, in Pittsburgh, focused on Global Eye Care and Orbital/Ophthalmic Plastic surgery respectively. Prior to joining Trinity Health, she was Assistant Professor at Loma Linda University School of Medicine Ophthalmology Department. In addition to being recognized for her academic achievement, Dr. Sandy has been an advocate for improving patient access to quality eye care, pioneering domestic and international medical missions and outreach. A member of the American Academy of Ophthalmology and American Medical Association, Dr. Sandy enjoys hiking, reading, and international cuisine.
Darren Hill, MD
Darren Hill, MD, is an ophthalmologist and a member of our team of specialists at Trinity Regional Eyecare Minot Center. Dr. Hill provides comprehensive medical and surgical eye care including cataract removal, laser and injection treatment for retinal pathology, laser and surgical glaucoma management, refractive surgery including LASIK and PRK, as well as surgical correction of strabismus and eyelid malposition. He graduated from Brigham Young University with academic honors, earned his Doctor of Medicine degree from Penn State University College of Medicine, and completed his surgical internship and ophthalmology residency at the University of Kentucky College of Medicine. Throughout his medical career, Dr. Hill has been recognized for academic achievement, his research endeavors including peer-reviewed papers, abstracts, and textbook publications, as well as for his strong commitment to volunteer service. A member of the American Medical Association, the American Society of Cataract and Refractive Surgery, American Academy of Ophthalmology, and the Alpha Omega Alpha Honor Society, he has participated in international and domestic missions providing vision care to disadvantaged patients. He spends his free time with his wife and five children.
Darrell Williams, MD
Dr. Darrell Williams established excellence in eye care for the people of this region when, in 1984 he started the Williams Medical Eye Center. Today, this practice has grown to include comprehensive medical and surgical eyecare services through Trinity Regional Eyecare – Minot Center. Dr. Williams has gained widespread recognition for his expertise in cataract care and vision correction with refractive procedures. Dr. Williams received his medical degree from Vanderbilt University School of Medicine and went on to complete a four year residency program in ophthalmology at the University of Kentucky Medical Center. He is board certified by the American Academy of Ophthalmology and is a member of several professional organizations, including the American Society of Cataract and Refractive Surgery, the International Society of Refractive Surgery, the American Medical Association, and the Society to Prevent Blindness.
Chad Wolsky, MD
Minot native Chad Wolsky, MD, is board certified in the specialty of Ophthalmology. He provides comprehensive medical and surgical eye care including cataract removal and intraocular lens implantation, laser surgical treatment for diabetic eye and glaucoma, surgical correction of pediatric and adult strabismus, laser and incisional eyelid surgery, and injections for botox and Restylane. A graduate of the University of North Dakota School of Medicine and Health Sciences in Grand Forks, he received his Ophthalmology training at the University of Kentucky Chandler Medical Center, Lexington. Dr. Wolsky is a member of the American Society of Cataract and Refractive Surgery, the American Academy of Ophthalmology, and the American Medical Association.
Sean Stanga, MD
Sean Stanga, MD, is an Allergy and Immunology specialist with primary training in Pediatrics. Dr. Stanga is qualified to care for both children and adults with allergic conditions such as allergies, asthma, hay fever, sinusitis, rashes, hives and reactions to food, insect bites or other environmental triggers. He is also trained in the diagnosis and treatment of primary immune deficiency (PID) and inherited and acquired swelling disorders (angioedema). A graduate of American University of the Caribbean School of Medicine, St. Maarten, Netherlands Antilles, he completed his pediatric residency at Raymond Blank Children’s Hospital, Des Moines, IA, and his Allergy/Immunology fellowship at Children’s Mercy Hospital, Kansas City, MO.
Brad Schimke, OD
Dr. Schimke has provided vision care to patients in Minot and throughout the region for many years. He joined Trinity Health in July 2001. A native of Minot, he received his Doctorate of Optometry from the Illinois College of Optometry in Chicago in 1993. His wife, Michele, is an elementary teacher with Minot Public Schools. They have 3 sons.
Mark Raymond, MD
Dr. Mark Raymond attended Virginia Tech in Blacksbug, Virginia where he obtained his Bachelors Degree in 1983. He received his Medical Degree in 1987 from Eastern Virginia Medical School in Norfolk, Virginia. Dr. Raymond completed his Internship at Eastern Virginia Medical School in Norfolk, Virginia and his Ophthalmology Residency at Yale School of Medicine in New Haven, Connecticut. In 1993 he joined the Eastern Shore Eye Center in Exmore, Virginia. Prior to joining Trinity Regional Eyecare, Dr. Raymond was in private practice on the Eastern Shore” in Virginia.
A native of Rhode Island, Dr. Raymond moved to Willistion in June 2007 with his wife Lynne, and two children. Hobbies enjoyed by Dr. Raymond include outdoor activities such as gardening, fishing and camping.
Michael Reder, MD
A specialist board certified in Allergy and Immunology Medicine, Dr. Michael Reder is specially trained to evaluate and treat allergic diseases and asthma in adults and children. A graduate of the University of Cincinnati, College of Medicine, he completed his internal medicine residency at the Medical University of South Carolina in Charleston. He spent a year as a hospitalist at Regional Medical Center, Orangeburg, SC, prior to completing his fellowship training in allergy and clinical immunology at Tulane University in New Orleans, LA.
Dr. Reder practiced as an allergist in South Carolina for five years, both in Charleston and in Greenville, prior to starting here at Trinity Health in 2011. He is board certified by the American Board of Allergy and Immunology and is a member of both the American Academy of Allergy, Asthma and Immunology and the American College of Allergy, Asthma and Immunology.
Jill Martinson-Redekopp, OD
Jill Martinson-Redekopp is a native of Garrison, North Dakota. She attended North Dakota State University and received her optometric degree from Southern California College of Optometry in Fullerton, CA. Dr. Martinson-Redekopp received the Distinguished Service Award from the North Dakota Optometric Association. She is the Past President of the North Dakota State Board of Optometry where she served for 25 years. She is the past Chair of the Council on Optometric Practitioner Education for the Association of Regulatory Boards of Optometry. She is the past President of the Board of Directors for the National Board of Examiners in Optometry. She is currently serving as liaison from the Association of Regulatory Boards of Optometry to the Joint Accreditation for Interprofessional Continuing Education.