Meet Dr. Marty Knott

I was born in Houston, TX and despite moving often as a child, my family moved back to Texas when I was 11. My interest in medicine started during a high school summer internship where I was mesmerized by the environment of the operating room. I went on to receive a Bachelor of Arts in Biology from Texas A&M University. Following that, I attended medical school at the Texas College of Osteopathic Medicine.

During my first year of medical school I was invited to the research laboratory of two of my great mentors and my interest in research was ignited. I enrolled in the graduate school and went on to receive my D.O. (Doctor of Osteopathic Medicine) and my Ph.D. in Integrative Physiology. I am proud of my D.O. degree as it has taught me a unique way of approaching the patient as a whole.

I completed my general surgery training at Carilion Clinic in Roanoke, VA. During my third year of residency I went on a mission trip to Haiti and knew Pediatric Surgery was the career for me. I spent a year doing research in Kansas City. It was one of the best years of my professional career, and my love for pediatric surgery only grew. I then had the wonderful opportunity to complete my Pediatric Surgery Fellowship in Kansas City. My experience there prepared me to perform advanced minimally invasive procedures.

I joined Cook Children's in January of 2016. I love what I do. I enjoy taking care of children and their families. It is rewarding to see a child feel better after surgery. Whether it be a laparoscopic hernia repair or a laparoscopic resection of a choledochal cyst, minimally invasive surgery remains my passion.

I have three boys. I love being outside and riding my bike.

Services

  • Abdominal/gastrointestinal issues
  • Circumcisions
  • Extracorporeal membrane oxygenation
  • Genitourinary surgery
  • Head and neck masses
  • Neonatal surgical conditions
  • Pectus Carinatum
  • Pectus Excavatum
  • Robotic surgery, laparoscopy, thoracoscopy
  • Thoracic surgery
  • Tumors and malignancies
  • Vascular, dialysis and feeding access

Reviews

Average rating:

4.9
Questions were addressed
4.9
4.9 (53)
Provider explained things clearly
4.9
4.9 (54)
Likelihood of recommending this provider
5
5 (53)
Trust/confidence in physicians
4.9
4.9 (53)

What our families say

  • November 18, 2025

    Good

  • October 27, 2025

    Dr. Knott was kind, thoughtful and thorough. He was present, not rushed and answered all of our questions.

  • October 24, 2025

    Good experiences

  • October 24, 2025

    The whole team was very good

  • October 23, 2025

    Everyone is great! Especially Dr. Knott

  • September 10, 2025

    Excellent

  • August 27, 2025

    Everything was great, they treated my son very very well

  • August 27, 2025

    To all the staff who attended me my son excellent people

  • August 23, 2025

    That was the best doctors visit we have ever had. I so appreciate not having to wait for 30+ minutes with a 3 year old.

  • July 05, 2025

    The entire team was great! We really enjoyed how smooth our visit was.

  • July 05, 2025

    Everything was great, the team did everything in their power to ease any worries we had.

  • July 04, 2025

    Dr. Knott was excellent, very kind and very informative. Very grateful for him.

  • June 14, 2025

    Excellent experience

  • June 14, 2025

    [...] and Dr Knott exceptional care excellence experience

  • June 12, 2025

    [...] LVN was pleasant, kind and engaging. Very sweet lady. Dr. Knott was also very kind and professional. Both displayed great bedside manners.

  • June 12, 2025

    Very good, all very friendly, good people.

  • June 04, 2025

    All the staff from registration on were very professional and courteous and the process was rather painless to navigate.

  • June 04, 2025

    Dr Knott was great. We had no doubt he was knowledgeable about what was going on as well as a plan going forward. We could see that he cared and would trust him again in the future if needed.

  • June 04, 2025

    Well all I have to say that the question we had was answered in a professional way.

  • May 23, 2025

    They both made our visit very comfortable and Dr. Knott did a great job providing all the information that was needed.

  • May 03, 2025

    They were always very attentive to the questions my son and I had.

  • April 20, 2025

    Everything went well

  • April 04, 2025

    Dr . Knott explained the outcome and risks on a way that we understood and he removed our anxiety.

  • March 23, 2025

    Despite the long wait time everything else was top tier. The staff did their best to accommodate us including providing snacks and water.

  • March 21, 2025

    Always super friendly, quick, and my child leaves happy not scared of her procedures when she is leave.

  • March 05, 2025

    Good

  • March 05, 2025

    My child had a very good experience. She was very relaxed with everyone and asked questions.

  • February 05, 2025

    The nurse that took [...] vital was incredibly friendly and kind. She spoke directly to [...] and made him feel comfortable.

  • February 05, 2025

    Dr. Knott was very kind and so knowledgeable. He explained things to us ver thoroughly. He engaged directly with [...] and spoke to [...] on [...] level.

  • January 04, 2025

    Dr. Knott is fabulous.

  • December 21, 2024

    Good answers when I asked a question

  • December 18, 2024

    Excellent

  • December 06, 2024

    All staff members were approachable and informative. The front desk staff member, [...], was exceptional.

  • December 06, 2024

    She coordinated with our pediatrician in regards to the referral. It saved me frustration and time. She is a welcoming personality and displays the values of the organization.

Publications

Publications:
  • BG Dalton, KW Gonzalez, EM Knott, SD St Peter, P Aguayo. (2015) Same day discharge after laparoscopic cholecystectomy in children. J Surg Res. 195:418-421.
  • EM Knott, JD Fraser, H Alemayahu, WB Drake, SD St Peter, KM Perryman, D Juang. (2014) Evaluation of cardiac function during laparoscopic gastrostomy in pediatric patients with hypoplastic left heart syndrome using intraoperative transesophageal echocardiography. J Laparoendosc Adv Surg Tech A. 24:738-741
  • JP Cunningham, EM Knott, AC Gasior, D Juang, CL Snyder, SD St Peter, DJ Ostlie. (2014) Is routine chest radiograph necessary after chest tube removal? J Pediatr Surg. 49:1493-1495.
  • AA Desai, EM Knott, H Alemayehu, AK Sherman, SD St Peter, DJ Ostlie. (2014) Histologic Analysis of the Hernia Sac: Current Practices Based on a Survey of IPEG Members. J Laparoendosc Adv Surg Tech A. 24:660-663.
  • NE Sharp, EM Knott, P Thomas, DC Rivard, SD St Peter. (2014) Burden of complications from needle penetration of plastic ports in children. J Pediatr Surg. 49:763-765.
  • AC Gasior, EM Knott, GW Holcomb 3rd, DJ Ostlie, SD St Peter. (2014) Patient and parental scar assessment after single incision versus standard 3-port laparoscopic appendectomy: Long-term follow-up from a prospective randomized trial. J Pediatr Surg. 49:120-122.
  • EM Knott, AC Gasior, SD St Peter, CL Snyder. (2014) Mortality of Necrotizing Enterocolitis and Isolated Ileal Perforation at a Single Institution over the Past 40 Years. Eur J Pediatr Surg. 24:394-397.
  • AC Gasior, KA Weesner, EM Knott, A Poola, SD St Peter. (2013) Long-term patient perception of pain control experience after participating in a trial between patient-controlled analgesia and epidural after pectus excavatum repair with bar placement. J Surg Res. 185:12-14.
  • EM Knott, P Thomas, NE Sharp, AC Gasior, SD St Peter. (2013) Reduced use of computed tomography in patients treated with interval appendectomy after implementing a protocol from a prospective, randomized trial. Pediatr Surg Int. 29:1293-1296.
  • EM Knott, FB Fike, AC Gasior, R Cusick, E Brownie, SD St Peter, KS Azarow. (2013) Multi-institutional analysis of long-term symptom resolution after cholecystectomy for biliary dyskinesia in children. Pediatr Surg Int. 29:1243-1247.
  • EM Knott, AC Gasior, DJ Ostlie, GW Holcomb 3rd, SD St Peter. (2013) Decreased resource utilization since initiation of institutional clinical pathway for care of children with perforated appendicitis. J Pediatr Surg. 48:1395-1398.
  • AC Gasior, EM Knott, SW Sharp, DJ Ostlie, GW Holcomb 3rd, SD St Peter. (2013) Experience with an evidence-based protocol using fibrinolysis as first line treatment for empyema in children. J Pediatr Surg. 48:1312-1315.
  • J Baerg, D Thorpe, G Bultron, R Vannix, EM Knott, AC Gasior, SW Sharp, E Tagge, SD St Peter. (2013) A multicenter study of the incidence and factors associated with redo Nissen fundoplication in children. J Pediatr Surg. 48:1306-1311.
  • AC Gasior, EM Knott, SW Sharp, CL Snyder, SD St Peter. (2013) Predictive factors for successful balloon catheter extraction of esophageal foreign bodies. Pediatr Surg Int. 29:791-794.
  • NE Sharp, EM Knott, CW Iqbal, P Thomas, SD St Peter. (2013) Accuracy of American College of Surgeons National Surgical Quality Improvement Program Pediatric for laparoscopic appendectomy at a single institution. J Surg Res. 184:318-321.
  • P Thomas, EM Knott, NE Sharp, SD St Peter. (2013) Implications of Foley catheterization in children with perforated appendicitis. J Surg Res. 184:337-340.
  • AC Gasior, EM Knott, FB Fike, VE Moratello, SD St Peter, DJ Ostlie, CL Snyder. (2013) Ghost publications in the pediatric surgery match. J Surg Res. 184:37-41.
  • NE Sharp, EM Knott, CW Iqbal, P Thomas, SD St Peter. (2013) Clinical outcomes following bowel resection versus reduction of intussusception. J Surg Res. 184:388-391.
  • AC Gasior, EM Knott, SD St. Peter. (2013) Management of peripherally inserted central catheter associated deep vein thrombosis in children. Pediatr Surg Int. 29:445-449.
  • AC Gasior, EM Knott, DJ Ostlie, SD St Peter. (2013) To drain or not to drain: an analysis of abscess drains in the treatment of appendicitis with abscess. Pediatr Surg Int. 29:455-458.
  • EM Knott, A Zamora, C Cavett, TA Wattsman. (2013) Decline in Health Status of Extremely Premature Neonates with Patent Ductus Arteriosus after Second Course of Medical Therapy. Eur J Pediatr Surg. 23:270-272.
  • AC Gasior, SD St Peter, EM Knott, M Hall, DJ Ostlie, CL Snyder. (2012) National trends in approach and outcomes with appendicitis in children. J Pediatr Surg. 47:2264-2267.
  • EM Knott, SR Shah, G Jones, M Hetherington, RJ Sharp. Treatment of chest wall osteosarcoma presenting as second primary after treatment of neuroblastoma. J Pediatr Surg. 47:e5-7.
  • EM Knott, AC Gasior, GW Holcomb III, DJ Ostlie, SD St. Peter. (2012) Impact of Body Habitus on Single Site Laparoscopic Appendectomy for Non-perforated Appendicitis: Subset Analysis from a Prospective, Randomized Trial. J Laparoendosc Adv Surg Tech A. 22:404-407.
  • VE Mortellaro, EM Knott, AC Gasior, SR Shah, DJ Ostlie, GW Holcomb, SD St. Peter. (2012) Is There an Increased Risk of Complications with Laparoscopy Looking for a Contralateral Patent Processus Vaginalis? J Laparoendosc Adv Surg Tech A 2:710-712.
  • EM Knott, AC Gasior, J Bikhchandani, JP Cunningham, SD St. Peter. (2012) Surgical management of gallstone pancreatitis in children. J Laparoendosc Adv Surg Tech A.22:501-4.
  • CW Iqbal, EM Knott, VE Mortellaro, KM Fitzgerald, SW Sharp, SD St. Peter (2012) Interval Appendectomy after Perforated Appendicitis: What are the Operative Risks and Luminal Patency Rates? J Surg Res. 177:127-130.
  • EM Knott, PA Valuesk, SD St. Peter (2012) Laparoscopic excision of a giant splenic vascular tumor. J Ped Surg 47(7):E21-3.
  • EM Knott, W Fry (2012) Intravenous ultrasound directed superior vena cava filter placement without contrast. Am Surg. 78:1010-1011.
  • EM Knott, B Beacham, W Fry (2011) New technique to prevent tilt during IVC filter placement. J Vasc Surg. 55:869- 71.
  • EM Knott, J Sun, Y Lei, M-G Ryou, AH Olivencia-Yurvati , RT Mallet (2006) Pyruvate mitigates oxidative stress during reperfusion of cardioplegia-arrested myocardium. Ann Thor Surg 81: 928-34.
  • EM Knott, M-G Ryou, J Sun, A Heymann, AB Sharma, Y Lei, M Baig, RT Mallet, AH Olivencia-Yurvati (2005) Pyruvate-fortified cardioplegia suppresses oxidative stress and enhances phosphorylation potential of arrested myocardium. Am J Physiol Heart Circ Physiol 289: H1123-1130.
  • EM Knott, JD Tune, S Stoll, HF Downey (2005) Lymphatic pump treatments increase thoracic duct flow. JAOA 105: 447-456.
  • Sharma, AB, EM Knott, J Bi, RR Martinez, J Sun, RT Mallet (2005) Pyruvate improves cardiac electromechanical and metabolic recovery from cardiopulmonary arrest and resuscitation. Resuscitation 66: 71-81.
  • Mallet, RT, J Sun, EM Knott, AB Sharma, AH Olivencia-Yurvati (2005) Metabolic cardioprotection by pyruvate: recent progress. Exp Biol Med 230: 435-443
Presentations:
  • All I Ever Needed to Know I Learned in 6 Months. Carilion Clinic Surgery Grand Rounds. December 2013
    Decreased Resource Utilization Since Initiation of Institutional Clinical Pathway for Care of Children with Perforated Appendicitis. Presented as a poster at the American Academy of Pediatrics Surgical Section Meeting. New Orleans, LA, October 2012.
    Pediatric Single-Site Umbilical Laparoscopic Surgery: Is the Future Really Brighter. Carilion Clinic Surgery Grand Rounds. Roanoke, VA, October 2012.
  • Multi-Institutional Analysis of Long Term Symptom Resolution After Cholecystectomy for Biliary Dyskinesia in Children. Presented as an oral presentation at the Canadian Association of Pediatric Surgeons (CAPS) 44th Annual Meeting. Vicotria, BC, September 2012.
  • Mortality of Necrotizing Enterocolitis and Isolated Ileal Perforation at a Single Institution over the Last 40 Years. Presented as a oral poster presentation at CAPS 44th Annual Meeting. Victoria, BC, September 2012.
    Impact of Body Habitus on Single Site Laparoscopic Appendectomy for Non-perforated Appendicitis: Subset Analysis from a Prospective, Randomized Trial. Presented as oral presentation at: IPEG's 21st Annual Congress, San Diego, CA, March 2012.
  • Surgical management of gallstone pancreatitis in children. Presented as oral presentation at: IPEG's 21st Annual Congress, San Diego, CA, March 2012.
  • Effects of intestinal resection on growth parameters in children with Crohn's disease. Presented as oral presentation at: Academic Surgical Congress, Las Vegas, NV, February 2012.
  • Outcomes for interval appendectomy after non-operative management of perforated appendicitis: what are the operative risks and luminal patency rates? Presented as oral presentation at: Academic Surgical Congress, Las Vegas, NV, February 2012.
  • Predictors of successful weight loss after adjustable gastric band placement. Presented as oral presentation at: Carilion Clinic Resident Research Day, Roanoke, VA, May 2011.
  • IVUS directed SVC filter placement without IV contrast. Presented as oral presentation at: Southwestern Surgical Congress, Ko Olina, HI, April 2011.
  • Earlier surgical intervention for patent ductus arteriosus for extremely premature neonates may be beneficial. Presented as poster presentation at: Southwestern Surgical Congress, Ko Olina, HI, April 2011.
  • Malignancies of the Skin. Presented as oral presentation at: Score Lecture Series, Carilion Clinic Surgery Program, January 2011
  • Biliary Disease. Presented as oral presentation at: Score Lecture Series, Carilion Clinic Surgery Program, July 2010
  • Pancreatic operations. Presented as oral presentation at: Score Lecture Series, Carilion Clinic Surgery Program, September 2009
  • Aortic root replacement for patients with aortic stenosis. Presented as poster presentation at: Carilion Clinic Resident Research Day, Roanoke, VA, May 2009.
  • Thyroid and Parathyroid Anatomy and Physiology. Presented as oral presentation at: Essentials in General Surgery, Carilion Clinic Surgery Program, July 2008.
  • Enteral tube feeding rates should be based on a 22 hour day for medical and surgical ICU patients. Presented as oral presentation at: Carilion Clinic Resident Research Day, Roanoke, VA, May 2008.
  • Pyruvate Cardioplegia Suppresses Oxidative Stress and Bolsters Phosphorylation Potential of Arrested Myocardium. Presented as oral presentation at: National Student Research Forum, Galveston, TX, April 2005.
  • Pyruvate cardioplegia suppresses oxidative stress and preserves phosphorylation potential of arrested myocardium. Presented as poster presentation at: Experimental Biology Meeting, San Diego, CA, April 2005.
  • Substrate enhanced cardioplegia reduces myocardial oxidative stress during cardioplegic arrest. Presented as oral presentation at: 21st Annual Frontiers of Cardiology conference, Winter Park, CO, January 2005
  • Lymphatic pump treatments increase thoracic duct flow. Presented as oral presentation at: 109th American Osteopathic Association National Convention, October 2004
  • Preconditioning: linking oxidative stress to the mitochondrial permeability transition pore. Presented as oral presentation at: University of North Texas Health Science Center. Department of Integrative Physiology.Lymphatic pump treatments increase thoracic duct flow. Presented as oral presentation at: 5th International Conference on Advances in Osteopathic Research. Erie, PA, September 2004.
  • Pyruvate-Enhanced Cardioplegia Attenuates Oxidative Stress During Cardiopulmonary Bypass. Presented as oral presentation at: University of North Texas Health Science Center Research Appreciation Day, April 2004.

Education

  • Medical school:
  • University of North Texas Health Science Center, Texas College of Osteopathic Medicine
  • Residency:
  • Carilion Clinic and Children’s Mercy Hospital and Clinics
  • Board certifications:
  • American Board of Surgery
  • American Board of Pediatric Surgery

Affiliations

  • American Pediatric Surgical Association
  • American College of Surgeons
  • Cook Children's Physician Network

Recognitions

  • 360 West Magazine Top Doc Award 2017-2018
  • 2013 Carilion Clinic Staff Choice Surgeon of the Month
  • 2013 Carilion Clinic Virginia Tech School of Medicine Arnold P Gold Foundation Humanism in Medicine and Excellence in Teaching Award
  • 2006 George W. Northup DO Medical Writing Award
  • Texas College of Osteopathic Medicine 2005-2006 Student D.O. of the Year
  • 2004 Burnett Student Osteopathic Research Award

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