I had an initial appointment with Dr. Nielson and it was one of the best doctor visits I've ever had. I arrived early and the nurse took me back 10 minutes before by scheduled appointment. I thought it would just be a 30 minute visit to establish a relationship; however, they quickly did an EKG and obtained a thorough health history. Dr. Nielson took all the time I wanted to discuss my health, concerns, and to educate me about my heart. I am happy I took this step in my personal health care.
I have been more than satisfied and trust Dr. Hacking with all my heart issues. I believe he is my best advocate and monitors my conditions with extreme care and expert judgement. He is on top of my care and has demonstrated that to me for the past 6 years. Dr. Hacking is approachable, he listens, he's friendly and explains my issues in an understandable manner. I look forward to every visit. I couldn't be more pleased with my treatment from Dr. Hacking.
Erin is awesome! I never feel rushed. She takes her time and listens to my ailments. She is very smart and always has a solution for me. Great staff!
Having Dr. Hacking as my cardiologist truly changed my life. I am so grateful for his help and patience with me. I have 110+% confidence in him and recommend him and the St. Mark's Heart Center over all other centers in the area! I always leave his office knowing I am getting excellent care.
Dr. Nielson exudes competence and attentiveness. He listens. I am a new patient, and just these two attributes together make me feel safe in his care.
I live in Colorado and traveled to Salt Lake City Utah to meet with Dr. Hacking. I am grateful that Dr. ;Hacking finally identified a heart valve condition that was resolved with open heart surgery. Prior to treatment with Dr. Hacking my Afib condition was a source of frustration and being treated primarily with medications. At 77 years of age, my post surgery physical functioning continues to improve.
My husband and I are both patients of Dr Nielson. We would highly recommend him, his staff and nurses are excellent. My brother is now a patient and very pleased with entire office.
Dr. Hacking is a great Cardiologist. He listens to your issues and answers all your questions. He is very active in the treatment of his patients and treats you like an individual and not just some number on a paper. He works with you to make sure you are getting the best treatment available to you. Dr. Hacking is very personable and has a great bedside matter as well. I could not ask for a better Cardiologist to treat my heart condition..
I always enjoy my visit with Dr. Shellenberg, he always seems to be in a great mood which becomes contagious, I always leave feeling better than when I first arrive. He is easy to talk to about anything and seems to be very knowledgeable with health care.
I would absolutely recommend Dr. Schellenberg to my family and friends. He is very knowledgeable and caring. He listens to your concerns and offers solutions based on his expertise. Any needs that you have are taken care of immediately (medication refills, referrals, lab tests, etc.).
Dr Hacking has done an excellent job in taking care of my heart problems. I would recommend him to anyone.
I received excellent service and care from Dr. Hacking. He was friendly, personable and very professional. I have been seeing him for four years and highly recommend him.
Love Erin and her staff! Would strongly recommend them to friends/family!
My consultation with Dr. Nielson was useful and greatly appreciated. He is providing excellent care for my heart condition.
Dr. Hacking is a hard working, thorough, and dedicated to his patients. He explains procedures and results and lab work tests in terms a patient can understand. He always asks if you have more questions and encourages healthy life style choices. I think he is terrific and I am grateful he is my Dr.
I have been seeing Dr. Hacking for about ten years. Recently, my insurance changed and he is out of network for me. I will pay the extra fee to keep him as my doctor. He is absolutely the best doctor that I have ever had. He takes time to make your visit a wonderful experience. He is knowledgeable, kind and thorough. I highly recommend Dr. Hacking.
Dr. Schellenberg and staff are Amazing they are the best staff by far I've seen in a long time, there are impeccable with there service very knowledgeable, answer all questions and care for you as a human being not just a number I would strongly recommend them.
Great Dr. Always takes the time to explain everything.
Outstanding patient care, very professional, courteous service in a clean and safe facility.
I have a great deal of admiration and gratitude for Dr. Hacking and his professionalism.
Dr. Schellenberg has been my physician since we moved to Draper 3 years ago. He is very knowledgeable, a good listener and always comes up with an excellent treatment plan. He is also willing to answer any questions I might have. I certainly have no reservations recommending him to family and friends.
Excellent cardiac care from a physician I trust. Always open to discuss any concerns, to review medications, and suggest possible lifestyle changes for a healthy heart. Highly recommend without reservation.
I have been part of the Lone Peak Primary group since it's opening days in South Jordan and my family and I have been lucky to have Dr. Kimball and the group take care of myself and my family. Erin is professional, warm, kind and empathetic to our concerns and medical needs. Her bedside manners for patient care is SUPERB and she will make you feel at ease and positive for visiting a medical office. She is extremely knowledgeable in her profession and I fully recommend her for family patient car
What a wonderful experience! Both Erin, as well as her nurse, were extremely professional yet personable. Erin was very thorough in answering all of my questions. I appreciated that she didn't make her time with me feel rushed, but took the time to make certain my concerns were answered. I would highly recommend Erin!
Erin Kimball has been easy to talk to and solve what problems I have, try different way or meds to help me get feeling better.
The best Doctor I have ever had. He explains very complicated issues in an easy to understand way. He help you understand the reason for and why life style changes will benefit your health. He delivers bad news in a very caring manner. Great caring doctor.
I have complete faith in Dr. Hacking! He is always very professional, thorough, personable, and knowledgeable! He takes the time to listen and treats you like a friend. Any tests deemed necessary are quickly arranged for, and Dr. Hacking carefully explains the results so that any questions are answered.
Dr. Hacking is extremely competent. Visiting with him is always reassuring because I know he will do everything possible to treat my condition and then he tells me exactly what he thinks we should do and lets me decide what options I would like to undertake. He is very personable and spends the time necessary to answer questions. With Dr. Hacking as my cardiologist I know that I am in the best possible hands.
I have trusted Dr. Nielson since my first visit to his office, then located in the Alta View Hospital complex. He has always treated me with respect, concern for my feelings and has stuck with a problem I would be experiencing until a resolution was reached. My symptoms have changed (improved) greatly over the years. Dr. Nielson has changed my medication as my symptoms have changed. I would, and have, certainly recommended Dr. Nielson to anyone who was experiencing a heart problem.
Dr Nielsen was on time for my appointment, never made me feel rushed, and was clearly knowledgeable about his specialty. I highly recommend him as a heart specialist.
I confidently recommend Dr. Schellenberg and his staff to family and friends, and anyone who wants to be sincerely listened to and cared about on bad or good days. As a patient, I want to be treated as I treat others- offering kindness and concern on all days, hard or happy:)
I've been coming to Dr Schellenberg for many years Though he is out of my network, it is worth it to me to self pay. I found him to be compassionate, thorough and detailed. I highly recommend
I am very happy with Dr Erin Kimball, nurse Jaimie & Sandra @ receptioist desk..
Erin is great. She takes the time to listen and answer all your questions.
"Dr. Kenneth G. Nielson, MD, is truly an outstanding doctor and he really cares about his patients". "I would strongly recommend him to anyone in need of a excellent doctor".
I was looking for a new PCP and after hearing positive remarks about Erin made an appointment. My experience was exceptional and the time she took to explain her findings was one of care, concern, and informative. Based on the need for further testing, she was quick to explain the results and discussed options which allowed me to determine what was in my best interest. I feel comfortable in referring friends and family to her, knowing they will have the same experience.
I first met Dr. Hacking when a family member hospitalized with some heart problems. He was very reassuring making the patient confident that best practices were being used. His quick attention to diagnostics resulted in the right procedure being done and recovery was as expected. When I started realizing I needed to check-in with a cardiologist, he was the first one that came to mind. I have been very please with the care I have received. He is always friendly. I highly recommend him.
I have seen Dr Hacking two times plus once for a procedure. He is thorough in his exam, explaining Everything he is doing and why. He is very personable and complete in his examination.
He tells you things in English and draws pictures so you can understand the problem your body (heart) is doing. He gives you motivation in hoping that things can work out for you.
Very personable
Dr. Hacking has been my cardiologist for many years. I have been impressed with his ability to answer my questions. I track my health conditions closely because I have several interactive health conditions. That includes online searches to get the best answers I can find and then discuss what I have found with Dr. Hacking. He almost always has an answer; it includes the relationships among factors. He then gives me the options with pros and cons and allows me to make the decision.
My first get aquainted visit with Dr. Schellenberg went well. He addressed my concerns and took appropriate action. His office responded timely with my lab results which was a new experience for me. I expect my followup appointment will be as positive.
Dr. Hacking is an exceptional doctor. My situation a couple of months ago was very, very serious. I was admitted to St. Mark's Hospital the afternoon of an appointment with Dr. Hacking. He assessed the situation, planned and implemented medications that within a few days had brought to a much better state. He visited my hospital room several times a day--even in the evenings as he was preparing to return home. I am very grateful for Dr. Hacking and highly recommend him.
Dr. Hacking listens. He hears what is said and not said. He is kind. He is a healer.
Dr. Hacking is the best Dr. I have ever seen . He listens to me and explains to me in terms I can understand. He is the best wish he could treat me for everything.
a very good doctor...
911 to St. Marks Hospital, A-Fib/Heart Failure, Dr. Hacking was on call, received excellent/knowledgeable treatment.
Best physician I've been too. Very kind and patient. Spends great amount of time with you. Would recommend to every one! Amazing.
I've been a patient for at least 5 years, and I trust him completely about taking good care of my well being and addressing all of my concerns.
Dr. Schellenberg always listens thoroughly to my concerns. I am extremely grateful for truly caring about me and my families health! Julie

Ablation For Treatment Of Cardiac Arrhythmias
Abscess Incision And Drainage
Cardiac Catheterization (Incl. Coronary Angiography)
Cardiac Electrophysiology
Cardiac Imaging
Cardiac Mri (Magnetic Resonance Imaging) Of Heart Or Chest
Cardiac Myocardial Perfusion Imaging
Cardiovascular Stress Test
Cardioversion, Elective
Cardioverter-Defibrillator Or Pacemaker Insertion, Removal Or Repair
Chest Ct (Incl. Heart And Lungs)
Coronary Angioplasty, Atherectomy And Stent
Fracture Care
Minimally Invasive Heart Surgery
Nuclear Stress Testing
Pacemaker Insertion Or Replacement
Peripheral Artery Catheterization
Physical Examination
Preventive Care
Radiofrequency Ablation
Removal Or Revision Of Pacemaker Or Cardioverter And-Or Defibrillator
Well Baby Care
Angioplasty With Stent Placement
Aortic Valve Surgery
Arterial Doppler Ultrasound
Cardiac Angiography
Cardiac Event Monitor
Carotid Surgery
Coronary Angiogram
Coumadin® Management
Dobutamine Stress Echocardiography
Doppler Test
Infant Care
Minimally Invasive Surgery
Neonatal Care
Non-Coronary Angioplasty, Atherectomy, And Stenting
Pap Smear
Peripheral Vascular Surgical Procedures
Skin Biopsy
Stress Echocardiogram
Transesophageal Echocardiography (Tee)
Ultrasound, Abdominal Aortic
Ultrasound, Cardiac
Valve Repair Or Replacement (Aortic, Mitral, Tricuspid, And Pulmonary)
Vascular Duplex Ultrasonography And Plethysmography
Venous Doppler (Legs And Arms)
UT, Draper, UT, 84020
Lone Peak Primary Care
(801) 545-8480
Lone Peak Primary Care
74 E Kimballs Ln Ste 260