RonGeraldLandmannMDFACS, FASCRS

Colon & Rectal Surgery • Jacksonville, FL

Chief, Section of Colon & Rectal Surgery, Baptist-MD Anderson Cancer Center - Baptist Medical Center Chair, Division of Colon & Rectal Surgery, Baptist Hospital Assistant Professor, Surgery, Mayo Clinic School of Medicine

Join to view full profile

Dr. Landmann is on Doximity

As a Doximity member you'll join over two million verified healthcare professionals in a private, secure network.

Connect with other colleagues in the same hospital or clinic
Search all U.S. specialist profiles and refer a patient
Read the latest clinical news and earn CME/CEU credits

See Dr. Landmann's full profile

Already have an account?

Office
1301 Palm Ave
Jacksonville, FL 32207
Phone+1 904-202-7300

Fax+1 904-202-7377
Is this information wrong?

Summary

Dr. Ron Landmann is a colorectal surgeon in Jacksonville, FL and is affiliated with Baptist MD Anderson Cancer Center and Baptist Medical Center Jacksonville. He received his medical degree from Boston University School of Medicine and has been in practice 17 years. He completed fellowships at Memorial Sloan-Kettering Cancer Center and Cleveland Clinic Florida. He also speaks multiple languages, including Spanish and Romanian. He is experienced in robotic surgery, sphincter-preservation, rectal cancer, colon cancer, diverticulitis, inflammatory bowel disease, ulcerative colitis, J-pouch procedures, crohn's disease, and colonoscopy. Additionally, he has brought forth advancements in surgical endomechanical devices, as well as robotics and digital innovation (incorporating advanced imaging and AR and AI).

Education & Training

Cleveland Clinic (Florida)Residency, Colon and Rectal Surgery, 2007 - 2008
Icahn School of Medicine at Mount Sinai/Morningside/WestResidency, Surgery, 2000 - 2007
Memorial Sloan Kettering Cancer CenterFellowship, Surgical Oncology - Colon & Rectal Surgery, 2003 - 2005
Boston University School of MedicineClass of 2000

Certifications & Licensure

FL State Medical License 2007 - 2025
AZ State Medical License 2014 - 2020
GA State Medical License 2013 - 2019
MN State Medical License 2014 - 2018
KY State Medical License 2013 - 2018
NJ State Medical License 2008 - 2011
NY State Medical License 2003 - 2008
American Board of Colon and Rectal Surgery Colon & Rectal Surgery
American Board of Surgery Surgery

Awards, Honors, & Recognition

Regional Top Doctor Castle Connolly, 2014-2019, 2021-2023
Best Doctor Best Doctors
Fellow American Society of Colon and Rectal Surgery
Fellow (FACS) American College of Surgeons
Join now to see all

Clinical Trials

Preoperative Radiotherapy and Chemotherapy in Patients With Locally Advanced Rectal Cancer Start of enrollment: 2009 Nov 01
Completed
Phase 2
PROSPECT: Chemotherapy Alone or Chemotherapy Plus Radiation Therapy in Treating Patients With Locally Advanced Rectal Cancer Undergoing Surgery Start of enrollment: 2012 Jun 12
Active, not recruiting
Phase 2, Phase 3
Perfusion Assessment in Laparoscopic Left Anterior Resection Start of enrollment: 2012 May 01
Completed
Phase 1
A Study Assessing Perfusion Outcomes With PINPOINT® Near Infrared Fluorescence Imaging in Low Anterior Resection Start of enrollment: 2015 Jan 01
Terminated
Not Applicable
Join now to see all

Publications & Presentations

PubMed

14 citations
Intracorporeal and extracorporeal anastomosis for robotic-assisted and laparoscopic right colectomy: short-term outcomes of a multi-center prospective trial.
Robert K. Cleary, Matthew L. Silviera, Tobi J. Reidy, James McCormick, Craig S. Johnson, Patricia Sylla, Jamie A. Cannon, Henry J. Lujan, Andrew Kassir, Ron G. Landman...> ;Surgical Endoscopy. 2021 Nov 1
55 citations
Perfusion Assessment in Left-Sided/Low Anterior Resection (PILLAR III): A Randomized, Controlled, Parallel, Multicenter Study Assessing Perfusion Outcomes With PINPOIN...
Mehraneh D. Jafari, Alessio Pigazzi, Elisabeth C. McLemore, Matthew G. Mutch, Eric M. Haas, Sowsan Rasheid, Alyssa D. Wait, Ian M. Paquette, Ovunc Bardakcioglu, Bashar...> ;Diseases of the Colon and Rectum. 2021 Apr 13
21 citations
Incidence, associated risk factors, and impact of conversion to laparotomy in elective minimally invasive sigmoidectomy for diverticular disease
Amir L. Bastawrous, Ron G. Landmann, Yuki Liu, E Liu, Robert K. Cleary> ;Surgical Endoscopy. 2020 Feb 1
14 citations
Does prolonged operative time impact postoperative morbidity in patients undergoing robotic-assisted rectal resection for cancer?
Emilie Duchalais, Nikolaos Machairas, Scott R. Kelley, Ron G. Landmann, Amit Merchea, Dorin T. Colibaseanu, Kellie L. Mathis, Eric J. Dozois, David W. Larson> ;Surgical Endoscopy. 2018 Mar 15
11 citations
Participation of Colon and Rectal Fellows in Robotic Rectal Cancer Surgery: Effect on Surgical Outcomes
Danielle Collins, Nikolaos Machairas, Emilie Duchalais, Ron G. Landmann, Amit Merchea, Dorin T. Colibaseanu, Scott R. Kelley, Kellie L. Mathis, Eric J. Dozois, David W...> ;Journal of Surgical Education. 2017 Jul 15
6 citations
What is the likelihood of colorectal cancer when surgery for ulcerative‐colitis‐associated dysplasia is deferred?
Jamie Murphy, Kristen A. Kalkbrenner, Joseph Vincent V. Blas, John H. Pemberton, Ron G. Landmann, Tonia M. Young-Fadok, David A. Etzioni> ;Colorectal Disease. 2016 Jul 1
20 citations
Dysplasia in ulcerative colitis as a predictor of unsuspected synchronous colorectal cancer.
Jamie Murphy, Kristen A. Kalkbrenner, John H. Pemberton, Ron G. Landmann, Jacques Heppell, Tonia M. Young-Fadok, David A. Etzioni> ;Diseases of the Colon and Rectum. 2014 Aug 1
Intussusception of a Small Bowel Large B-Cell Lymphoma
William C. Palmer, Ron G. Landmann, Dustin L. Eck, David M. Menke, John R. Cangemi> ;Indian Journal of Surgical Oncology. 2014 Mar 29
41 citations
Colectomy for Endoscopically Unresectable Polyps: How Often Is It Cancer?
Noelle L. Bertelson, Kristen A. Kalkbrenner, Amit Merchea, Eric J. Dozois, Ron G. Landmann, Giovanni De Petris, Tonia M. Young-Fadok, David A. Etzioni> ;Diseases of the Colon and Rectum. 2012 Nov 1
1 citations
Persistent ischiorectal fistula with supralevator origin secondary to a chronic tubo-ovarian abscess: report of a case and review of the literature
Erol V. Belli, Ron G. Landmann, Stephanie L. Koonce, Anita H. Chen, Philip P. Metzger> ;Female Pelvic Medicine & Reconstructive Surgery. 2012 Jan 1
Recurrent giant gastrointestinal stromal tumor of the small bowel mesentery.
Cameron D. Adkisson, Adam S. Harris, Jillian M. Bray, Liuyan Jiang, Albert G. Hakaim, Ron G. Landmann, Philip P. Metzger> ;The American Surgeon. 2011 Sep 1
1 citations
A Hemorrhoid by Any Other Name
Cameron D. Adkisson, Ron G. Landmann> ;Mayo Clinic Proceedings. 2011 Apr 1
104 citations
Is nonsmall cell type high-grade neuroendocrine carcinoma of the tubular gastrointestinal tract a distinct disease entity?
Jinru Shia, Laura H. Tang, Martin R. Weiser, Baruch Brenner, N. Volkan Adsay, Edward B. Stelow, Leonard B. Saltz, Jing Qin, Ron G. Landmann, Gregory D. Leonard, Deepti...> ;The American Journal of Surgical Pathology. 2008 May 1
18 citations
Paradoxical Puborectalis Contraction and Increased Perineal Descent
Ron G. Landmann, Steven D. Wexner> ;Clinics in Colon and Rectal Surgery. 2008 May 1
81 citations
Immunohistochemical expression of folate receptor α in colorectal carcinoma : patterns and biological significance
Jinru Shia, David S. Klimstra, James R. Nitzkorski, Philip S. Low, Mithat Gonen, Ron G. Landmann, Martin R. Weiser, Wilbur A. Franklin, Franklyn G. Prendergast, Linda ...> ;Human Pathology. 2008 Apr 1
183 citations
Identification of Patients with High-Risk Stage II Colon Cancer for Adjuvant Therapy
Hak-Mien Quah, Joanne F. Chou, Mithat Gonen, Jinru Shia, Deborah Schrag, Ron G. Landmann, Jose G. Guillem, Philip B. Paty, Larissa K. Temple, W. Douglas Wong, Martin R...> ;Diseases of the Colon and Rectum. 2008 Mar 6
215 citations
Individualized Prediction of Colon Cancer Recurrence Using a Nomogram
Martin R. Weiser, Ron G. Landmann, Michael W. Kattan, Mithat Gonen, Jinru Shia, Joanne Chou, Philip B. Paty, Jose G. Guillem, Larissa K. Temple, Deborah Schrag, Leonar...> ;Journal of Clinical Oncology. 2008 Jan 20
71 citations
Limitations of early rectal cancer nodal staging may explain failure after local excision.
Ron G. Landmann, W. Douglas Wong, Joseph Hoepfl, Jinru Shia, Jose G. Guillem, Larissa K. Temple, Philip B. Paty, Martin R. Weiser> ;Diseases of the Colon and Rectum. 2007 Aug 3
23 citations
Novel xenograft model expressing human hepatocyte growth factor shows ligand-dependent growth of c-Met–expressing tumors
Todd D. Francone, Ron G. Landmann, Chin-Tung Chen, Mark Y. Sun, Eleanor Kuntz, Zhaoshi Zeng, Ronald P. DeMatteo, Philip B. Paty, Martin R. Weiser> ;Molecular Cancer Therapeutics. 2007 Apr 1
129 citations
Molecular co-expression of the c-Met oncogene and hepatocyte growth factor in primary colon cancer predicts tumor stage and clinical outcome.
Udai S. Kammula, Eleanor Kuntz, Todd D. Francone, Zhaoshi Zeng, Jinru Shia, Ron G. Landmann, Philip B. Paty, Martin R. Weiser> ;Cancer Letters. 2007 Apr 18
41 citations
Surgical management of locally advanced and locally recurrent colon cancer.
Ron G. Landmann, Martin R. Weiser> ;Clinics in Colon and Rectal Surgery. 2005 Aug 1
109 citations
Surgical salvage of recurrent rectal cancer after transanal excision.
Martin R. Weiser, Ron G. Landmann, W. Douglas Wong, Jinru Shia, Jose G. Guillem, Larissa K. Temple, Bruce D. Minsky, Alfred M. Cohen, Philip B. Paty> ;Diseases of the Colon and Rectum. 2005 Mar 24
Intra-operative use of super-selective or highly selective angiography with methylene blue injection to localize arterial-venous malformation.
Stauffer, J. A., Shaddix, K. K., Achem, S. R., Stark, M., Adelson, A., Metzger, P. P., Landmann, R. G.> ;Colorectal Dis. 2011 Apr
Join now to see all

Other

Management of patients with a colostomy or ileostomy
Landmann RG, Doughty DB
http://www.uptodate.com/contents/management-of-patients-with-a-colostomy-or-ileostomy
UpToDate, Wolters Kluwer Health - 2013-04-15

Press Mentions

Ethicon’s Echelon Circular Powered Stapler Associated with Major Reduction in Serious Complications Following Colorectal SurgeryAugust 11th, 2021
Ethicon’s ECHELON CIRCULAR Powered Stapler Associated with Major Reduction in Serious Complications Following Colorectal SurgeryAugust 11th, 2021
The August Issue Is Out! Find Out the Top Reasons to Read the August Issue of Diseases of the Colon and RectumJuly 16th, 2021
Join now to see all

Committees

Institutional Delegate, Optimizing the Surgical Treatment of Rectal Cancer 2014 - Present
Chair, ASCRS Rectal Cancer Steering Committee 2013 - Present
Member, Continuing Education in CRS 2010 - Present
Vice Chair, Awards Committee 2010 - 2013