Amanda Weidler, FNP-C, serves in Trinity’s Cardiology Department as a nurse practitioner. She works closely with cardiologists and other clinical staff to provide comprehensive cardiovascular care, including health assessments, care planning, writing prescriptions, and counseling patients on lifestyle changes that can reduce the risk of cardiovascular illness. Originally from Killdeer, Amanda earned her Bachelor of Science degree in Nursing from the University of North Dakota, Grand Forks. She practiced in Bismarck and at Trinity Hospital in Minot, serving patients in the ortho-neuro and post-anesthesia care units. She returned to UND to complete her Master of Science/Family Nurse Practitioner degree. A member of the American Association of Nurse Practitioners and the North Dakota Nurse Practitioners Association, Amanda resides in Velva with her husband, Matt, and their two children.
Samir Turk, MD
Dr. Turk is board certified in general cardiology and interventional cardiology. A graduate of the Royal College of Physicians and Surgeons, Dublin, Ireland, he completed his residency in Internal Medicine at Worcester City Hospital and University of Massachusetts Medical Center, Worcester, MA. He completed fellowships in peripheral vascular medicine and cardiology at Cleveland Clinic Foundation and MetroHealth Medical Center in Ohio. He was an interventional cardiologist with Health Center – Medical Arts from 1994-1999. He was associated with Ohio Heart Care, Inc., Canton, Ohio, before returning to Minot.
Erdal Diri, MD
A board certified rheumatologist, Dr. Erdal Diri provides expert treatment for the more than 100 types of arthritis and related disorders of the joints, muscles, bones and tendons. He’s also board certified in Internal Medicine. Originally from Turkey, he received his medical degree from Cerrahpasa Medical Faculty at the University of Istanbul. He did post-doctoral training in pharmacology there and moved to the United States to pursue his rheumatology specialty. He was a research fellow at Louisiana State University Medical Center in New Orleans and completed a clinical fellowship in Rheumatology at the University of Texas Southwestern Medical Center in Dallas. Dr. Diri has maintained an active involvement in clinical research studies aimed at advancing treatment therapies for rheumatic diseases, including rheumatoid arthritis, fibromyalgia and lupus.
Lisa Brandt, ACNP-BC
A board certified acute care nurse practitioner, Lisa Brandt, ACNP-BC, works in coordination with other members of our Rheumatology team to provide compassionate, attentive care to patients affected by the various forms of arthritis and rheumatic diseases. A Bismarck native, she earned her Bachelor of Science in Nursing from the University of North Dakota, Grand Forks, and practiced in the ICU and later General Surgery. She received her Master of Science as an Acute Care Nurse Practitioner from the University of Michigan, Ann Arbor. A member of the American Association of Nurse Practitioners and the American Association of Critical Care Nurses, Lisa and her husband, Jerel, have three children. They enjoy spending time with family, especially now that she and Jerel, a Minot native, have returned home to North Dakota.
Valentine Chikwendu, MD
Valentine Chikwendu, MD, is a board certified specialist in general cardiology. He provides diagnosis and treatment to people with cardiovascular disease, and also performs invasive/non-invasive cardiology procedures. A graduate of the University of Nigeria College of Medicine, Dr. Chikwendu completed his internal medicine residency and adult cardiology fellowship at Cooke County Hospital in Chicago. He is specially trained to assess heart function by utilizing nuclear cardiology studies and is certified by the Board of Nuclear Cardiology.