Chad Geisinger, ACNPC-AG, is a board-certified adult-gerontology acute care nurse practitioner and a member of our Pulmonary/Critical Care team. A Bottineau native, he received his Bachelor of Science in Nursing from the University of Phoenix. He completed his Master of Science in Adult-Gerontology Acute Care Nurse Practitioner from Herzing University. Chad previously held roles at Trinity Health as a flight paramedic and an RN/charge nurse in the intensive care unit before his current role as a nurse practitioner. Outside of work, he enjoys camping, fishing and spending time with family. Chad is looking forward to using his past experience and knowledge and implementing it into the care he is providing in his new role. He is a member of the American Association of Critical Care Nurses.
Trinity Health Medical Office Building
Sean Russell, MD
Sean Russell, MD, a Minot native, brings specialized cardiac expertise to Trinity Health’s cardiology surgical team. Dr. Russell completed his undergraduate studies at Carroll College in Helena, MT, before earning his Doctor of Medicine from the Medical College of Wisconsin in Milwaukee. His surgical training includes both general and thoracic surgery residencies at the Baylor College of Medicine and Affiliated Hospitals in Houston, Texas.
As an established cardiovascular and thoracic surgeon, Dr. Russell has practiced in Bismarck for over 25 years. A Clinical Assistant Professor at the University of North Dakota, he maintains active involvement in medical education while serving the region’s cardiac care needs. He holds dual board certifications from the American Board of Thoracic Surgery and the American Board of Surgery. His professional affiliations include the Society of Thoracic Surgeons, the Society of Clinical Vascular Surgeons, and the Michael E. DeBakey Surgical Society.
Sorin V. Pusca, MD
Sorin V. Pusca, MD, brings extensive surgical expertise to the Trinity Health’s cardiology team. Dr. Pusca completed his residency in cardiothoracic surgery at the University of Medicine and Dentistry of New Jersey in 2004 and advanced fellowships in cardiothoracic surgery at Emory University in 2006. He subsequently stayed on staff at Emory University as instructor and later as assistant professor. Prior to joining Trinity Health, Dr. Pusca was part of one of the busiest cardiothoracic surgery private practices in Texas.
He brings extensive experience in off pump coronary artery bypass, total arterial revascularization with bilateral internal mammary arteries, mitral valve repair with leaflet preservation, aortic valve replacement with root enlargement and aortic surgery. He has additional interests in minimally invasive thoracic surgery, video assisted lobectomy, thymectomy and decortication, as well as esophageal surgery.
Dr. Pusca maintains dual Board certifications from the American Board of Thoracic Surgery and the American Board of Surgery.
Peter Mikhail, MD, FRCS (C), FACS
Peter Mikhail, MD, FRCS (C), FACS, is a highly accomplished cardiovascular and thoracic surgeon with over 20 years of experience and a distinguished record of leadership, academic contributions, and clinical excellence. He joins Trinity Health’s cardiology team with exceptional credentials and a commitment to advancing patient care.
Dr. Mikhail earned his Doctor of Medicine degree from McGill University in Montreal, Quebec, Canada. He completed his general surgery residency at the University of Toronto in Ontario, Canada, followed by a cardiovascular and thoracic surgery residency at the University of Florida in Gainesville, FL, where he honed expertise in advanced and minimally invasive surgical techniques.
Board-certified by the American Board of Surgery and the American Board of Thoracic Surgery, Dr. Mikhail is a Fellow of both the American College of Surgeons and the Royal College of Surgeons of Canada, reflecting his dedication to the highest standards of surgical excellence. His professional affiliations include the Society of Thoracic Surgeons, further underscoring his standing in the field.
Throughout his career, Dr. Mikhail has held pivotal leadership roles, including Section Chief of Cardiovascular and Thoracic Surgery at United Regional Health Care System. Since 2021, he has served as Section Chief and Chair of the Cancer Committee at CHI St. Alexius Health in Bismarck, where he was also a voting member of the Medical Executive Committee. He has concurrently practiced as a cardiovascular and thoracic surgeon in New Port Richey, FL, since 2017.
Dr. Mikhail’s contributions to medicine extend beyond the operating room. He has participated in many clinical trials and authored contributions to medical literature. His career also features academic appointments as Assistant Professor of Surgery at the University of Florida and the University of North Dakota, where he has mentored future physicians and surgeons.
A leader in cardiovascular care, Dr. Mikhail is committed to innovation and excellence, making him a valuable asset to Trinity Health and the communities he serves.
A. Hadi Hakki, MD
A. Hadi Hakki, MD, joins Trinity Health’s cardiology team as a distinguished cardiovascular & thoracic surgeon, bringing decades of specialized expertise to Minot. His comprehensive training includes a general surgery residency at York Hospital in York, PA and a cardiothoracic surgery residency at Hahnemann Hospital in Philadelphia, PA. Dr. Hakki further enhanced his expertise through prestigious fellowships in cardiothoracic surgery at Brook General Hospital in London, UK, pediatric cardiac surgery at St. Christopher’s Hospital in Philadelphia, and hand & microsurgery at Detroit Medical Center in Detroit, MI.
With over three decades of experience, Dr. Hakki previously led a successful cardiovascular & cardiothoracic surgery practice in Florida since 1988. His leadership roles include Assistant Professor of Surgery at Hahnemann University Hospital, Director of Cardiothoracic and Vascular Surgery at Carle BroMenn Hospital in Normal, IL, and Chief of Surgery at Northside Hospital in St. Petersburg, FL, where he also served on the Executive Committee. A Senior Member of the Society of Thoracic Surgery, Dr. Hakki maintains board certification from the American Board of Thoracic Surgery and holds medical licenses in eight states. Dr. Hakki is the author of the book Ideal Cardiac Pacing, one of 13 books referenced by the Board of Electrophysiology and Pacemakers.
Abdullahi Adamu, MD
Trinity Health is pleased to welcome Abdullahi Adamu, MD, to our Neurology team, where he will focus on conditions of the brain, spinal cord and peripheral nerves. A native of Nigeria, Dr. Adamu earned his Bachelor of Medicine and Bachelor of Surgery from Bayero University Kano College of Medicine in Nigeria. From there, he earned a master’s degree in public health focusing on epidemiology and global communicable diseases from the University of South Florida in Tampa. After completing an Internal Medicine internship at Louisiana State University, Shreveport, Dr. Adamu completed his Neurology residency at the same institution. A member of the American Neurological Association, American Public Health Association and the Medical and Dental Council of Nigeria, he enjoys watching soccer, volunteering in the community and spending time with family.
Seema Rao, MD
A member of our general surgery team, Seema Rao, MD, comes to Trinity Health after completing a general surgery residency at the University of Arkansas for Medical Sciences in Little Rock. Before then, Dr. Rao received her Bachelor of Science in Physiology with a Minor in Social Studies of Medicine from McGill University in Montreal, Quebec, Canada. From there, she earned her Master of Science in Medical Sciences from Mississippi College in Clinton and her Doctor of Medicine from the University of Kentucky College of Medicine in Lexington. A member of the Society of Thoracic Surgeons and the Society of Laparoscopic and Robotic Surgeons, Dr. Rao has a lot of training and experiences that she is looking forward to bringing to Trinity Health. A Winnipeg native, Dr. Rao enjoys spending time with family, reading, hiking, kayaking, canoeing, swimming and playing the piano or flute.
Fritzie DeLeon, FNP-C
Fritzie DeLeon, FNP-C, is a board-certified nurse practitioner and part of our nephrology team. A native of the Philippines, Fritzie received her Bachelor of Science in Nursing from the University of Santo Tomas in Manila, Philippines. From there, she received her Master of Science in Nursing from Bradley University in Peoria, Ill. An experienced nephrology nurse with over 19 years of experience in the field, Fritzie is looking forward to focusing on prevention and limiting the progression of kidney diseases. A member of the American Nephrology Nurses Association, the American Association of Nurse Practitioners and the Nephrology Nursing Certification Commission, Fritzie enjoys camping and fishing during the summer, as well as traveling and shopping
Mireille Mbah, MD
As a new member of our nephrology team, Mireille Mbah, MD, specializes in diagnosing and managing conditions involving the kidneys. A native of Cameroon, Dr. Mbah received her Bachelor of Science in Biology with a minor in chemistry from Frostburg State University in Frostburg, Md. From there, she earned her Doctor of Medicine from Howard University College of Medicine in Washington, D.C. Upon graduation, Dr. Mbah completed her internal medicine residency and nephrology fellowship at the University of Texas Southwestern. She is passionate about medical education and training the younger generation. Dr. Mbah enjoys spending time with family and is looking forward to bringing her best and taking adequate care of patients.
David Min, MD
Trinity Health is pleased to welcome neurosurgeon David Min, MD, to our medical staff. Dr. Min is board certified in neurological surgery and fellowship trained in spinal surgery. He brings more than 20 years of experience providing surgical care to people with brain and spinal disorders due to disease or trauma.
Originally from Houston, TX, Dr. Min earned his medical degree from the University of Oklahoma College of Medicine and remained there to complete his internship and neurological surgery residency. He went on to complete a year-long fellowship in complex spine surgery at Indianapolis Neurosurgery Group in Indiana.
Since then, he has provided neurosurgical care to patients at centers in Oklahoma, Utah and Wisconsin, utilizing minimally invasive techniques as well as disc replacement cervical spine surgeries. Most recently he served as Chair of Neurosciences at Ascension Columbia St. Mary’s in Milwaukee, WI.