Daniel S. Oh, MD

Clinical Associate Professor of Surgery (Practitioner) (Part-Time)

Image of Daniel S. Oh, MD
Is this your profile? Click to edit


Dr. Oh specializes in general thoracic surgery, which includes benign and malignant diseases of the lung, pleura, esophagus, mediastinum, and chest wall. He has an interest in applying and expanding the role of minimally invasive and robotic technology in the diagnosis and treatment of the conditions afflicting his patients. Recognizing the limitations of standard laparoscopic surgery and thoracoscopic surgery or VATS (video assisted thoracoscopic surgery), he has been utilizing robotic technology with the da Vinci system to perform surgery when appropriate. This technique allows for operations to be performed through small incisions with less tissue trauma, less pain, and shorter recovery. Approximately 90 percent of Dr. Oh’s major operations are performed with robotic assistance, and he has performed hundreds of such cases since 2011.

Dr. Oh is a firm believer of multidisciplinary care. He takes a direct and proactive approach in working with his colleagues in gastroenterology, pulmonology, medical oncology, radiation oncology, radiology, and pathology. By taking a team approach and tailoring treatment to the patient’s specific situation, he strives to deliver state-of-the-art care to achieve optimal outcomes.

Dr. Oh obtained his surgical training at two internationally recognized institutions in esophageal and lung surgery – USC and Harvard Medical School (Brigham and Women’s Hospital). He has gained extensive experience in the full spectrum of thoracic surgery, including minimally invasive lung resection and minimally invasive esophageal surgery. Unique among thoracic surgeons, Dr. Oh also actively performs advanced endoscopic and bronchoscopic procedures as he believes a disease-specific approach is better than a technology-specific approach.

Dr. Oh is active in research and spends his non-clinical time working with Intuitive Surgical in researching outcomes of robotic-assisted surgery, improving training technology for surgeons, and helping assess and develop new technologies and procedures that can improve outcomes. His work has been published in numerous professional journals and he gives lectures internationally.

Currently, Dr. Oh is seeing patients only at the USC-St. Jude Center for Thoracic and Esophageal Diseases in Fullerton, where he is the medical director.


  • Department of Surgery, University of Southern California: Outstanding Resident Award, 2008
  • Department of Surgery, University of Southern California: Outstanding Scholar Award, 2008
  • Loyola University of Chicago Stritch School of Medicine: Alpha Omega Alpha Medical Honor Society, 2001


  • Task-Based Objective Performance Indicators in Robotic Lobectomy Offer a Novel Avenue for Case Assessments JAMA Surg. 2023 Oct 01; 158(10):1103-1104. . View in PubMed
  • Experience matters for robotic assistance: an analysis of case data J Robot Surg. 2023 Oct; 17(5):2421-2426. . View in PubMed
  • Differences Between Attending and Trainee Surgeon Performance Using Objective Performance Indicators During Robot-Assisted Lobectomy Innovations (Phila). 2023 Sep-Oct; 18(5):479-488. . View in PubMed
  • A novel approach to quantifying surgical workflow in robotic-assisted lobectomy Int J Med Robot. 2023 Jul 19; e2546. . View in PubMed
  • Objective performance indicators of cardiothoracic residents are associated with vascular injury during robotic-assisted lobectomy on porcine models J Robot Surg. 2023 Apr; 17(2):669-676. . View in PubMed
  • Innovations in robotic surgery and recent developments in the SP platform Ann Cardiothorac Surg. 2023 Mar 31; 12(2):126-127. . View in PubMed
  • Comparison of Global Evaluative Assessment of Robotic Surgery with objective performance indicators for the assessment of skill during robotic-assisted thoracic surgery Surgery. 2023 12; 174(6):1349-1355. . View in PubMed
  • CUSUM learning curves: what they can and can’t tell us Surg Endosc. 2023 10; 37(10):7991-7999. . View in PubMed
  • WNT-modulating gene silencers as a gene therapy for osteoporosis, bone fracture, and critical-sized bone defects Mol Ther. 2023 02 01; 31(2):435-453. . View in PubMed
  • Reconstruction of the Maxillary Sinus After Previous Major Sinus Elevation Failure: A Study with a 3-Year Follow-up Int J Periodontics Restorative Dent. 2022 Nov-Dec; 42(6):799-807. . View in PubMed
  • Publisher Correction: Impact of type of minimally invasive approach on open conversions across ten common procedures in different specialties Surg Endosc. 2022 Sep; 36(9):7075. . View in PubMed
  • Validity of robotic simulation for high-stakes examination: a pilot study J Robot Surg. 2022 Apr; 16(2):409-413. . View in PubMed
  • Impact of type of minimally invasive approach on open conversions across ten common procedures in different specialties Surg Endosc. 2022 08; 36(8):6067-6075. . View in PubMed
  • Multiple Porous Synthetic Bone Graft Comprising EngineeredMicro-Channel for Drug Carrier and Bone Regeneration Materials (Basel). 2021 Sep 15; 14(18). . View in PubMed
  • Clinical and Economic Outcomes of Using Robotic Versus Hand-Held Staplers During Robotic Lobectomy Innovations (Phila). 2021 Sep-Oct; 16(5):470-476. . View in PubMed
  • Evaluation of Efficiency of Polymerization, Surface Roughness, Porosity and Adaptation of Flowable and Sculptable Bulk Fill Composite Resins Molecules. 2021 Aug 27; 26(17). . View in PubMed
  • Postoperative opioid use after lobectomy for primary lung cancer: A propensity-matched analysis of Premier hospital dataJ Thorac Cardiovasc Surg. 2021 07; 162(1):259-268. e4. . View in PubMed
  • Adequacy of EGD Reporting: a Review of 100 Reports from 100 Endoscopists J Gastrointest Surg. 2021 05; 25(5):1117-1123. . View in PubMed
  • Intravenous Ketamine for Cancer Pain Management, Including Flares During the COVID-19 Pandemic: A Retrospective Study Pain Med. 2021 07 25; 22(7):1642-1650. . View in PubMed
  • Clinical outcome after laparoscopic Nissen fundoplication in patients with GERD and PPI refractory heartburn Dis Esophagus. 2020 Apr 15; 33(4). . View in PubMed
  • Clinical and economic comparative effectiveness of robotic-assisted, video-assisted thoracoscopic, and open lobectomy J Thorac Dis. 2020 Mar; 12(3):296-306. . View in PubMed
  • Enhanced mechanical properties of ZrO2-Al2O3 dental ceramic composites by altering Al2O3 form Dent Mater. 2020 04; 36(4):e117-e125. . View in PubMed
  • Port Strategies for Robot-Assisted Lobectomy by High-Volume Thoracic Surgeons: A Nationwide Survey Innovations (Phila). 2019 Nov/Dec; 14(6):545-552. . View in PubMed
  • Lobectomy in octogenarians: real world outcomes for robotic-assisted, video-assisted thoracoscopic, and open approaches J Thorac Dis. 2019 Jun; 11(6):2420-2430. . View in PubMed
  • The posterior approach to robotic-assisted right upper lobectomy J Thorac Dis. 2019 May; 11(Suppl 9):S1161-S1162. . View in PubMed
  • A Step-by-Step Procedure for Bone Regeneration Using Calcium Phosphate Scaffolds: From Site Preparation to Graft Placement J Craniofac Surg. 2019 Jan; 30(1):149-153. . View in PubMed
  • Wicking Property of Graft Material Enhanced Bone Regeneration in the Ovariectomized Rat Model Tissue Eng Regen Med. 2018 Aug; 15(4):503-510. . View in PubMed
  • Robotic-Assisted Versus Thoracoscopic Lobectomy Outcomes From High-Volume Thoracic Surgeons Ann Thorac Surg. 2018 09; 106(3):902-908. . View in PubMed
  • A literature review and hypothesis for the etiologies of cervical and root caries J Esthet Restor Dent. 2018 05; 30(3):187-192. . View in PubMed
  • Accuracy of Clinical Staging and Outcome With Primary Resection for Local-Regionally Limited Esophageal Adenocarcinoma Ann Surg. 2018 03; 267(3):484-488. . View in PubMed
  • Esophageal adenocarcinoma stage III: Survival based on pathological response to neoadjuvant treatment Surg Oncol. 2017 Dec; 26(4):522-526. . View in PubMed
  • Outcome with Primary En-bloc Esophagectomy for Submucosal Esophageal Adenocarcinoma Ann Surg Oncol. 2017 Dec; 24(13):3921-3925. . View in PubMed
  • Robotic-Assisted, Video-Assisted Thoracoscopic and Open Lobectomy: Propensity-Matched Analysis of Recent Premier Data Ann Thorac Surg. 2017 Nov; 104(5):1733-1740. . View in PubMed
  • Post-Nissen Dysphagia and Bloating Syndrome: Outcomes After Conversion to Toupet Fundoplication J Gastrointest Surg. 2017 03; 21(3):441-445. . View in PubMed
  • Public perceptions on robotic surgery, hospitals with robots, and surgeons that use them Surg Endosc. 2016 Apr; 30(4):1310-6. . View in PubMed
  • Image Guided Hypofractionated Postprostatectomy Intensity Modulated Radiation Therapy for Prostate Cancer Int J Radiat Oncol Biol Phys. 2016 Mar 01; 94(3):605-11. . View in PubMed
  • Activation of Protein Kinase A in Mature Osteoblasts Promotes a Major Bone Anabolic Response Endocrinology. 2016 Jan; 157(1):112-26. . View in PubMed
  • Timing and Pattern of Recurrence after Gastrectomy for Adenocarcinoma Am Surg. 2015 Oct; 81(10):1057-60. . View in PubMed
  • Esophageal Adenocarcinoma in Patients Younger than 40 Years: A Two-Decade Experience at a Public and Private Hospital Am Surg. 2015 Oct; 81(10):974-8. . View in PubMed
  • Distinctive Capillary Action by Micro-channels in Bone-like Templates can Enhance Recruitment of Cells for Restoration of Large Bony Defect J Vis Exp. 2015 Sep 11; (103). . View in PubMed
  • Long-Term Outcome of the Treatment of Zenker’s Diverticulum Ann Thorac Surg. 2015 Sep; 100(3):975-8. . View in PubMed
  • Intraoperative Assessment of Perfusion of the Gastric Graft and Correlation With Anastomotic Leaks After Esophagectomy Ann Surg. 2015 Jul; 262(1):74-8. . View in PubMed
  • High resolution manometry sub-classification of Achalasia: does it really matter? Surg Endosc. 2015 Jun; 29(6):1363-7.. View in PubMed
  • Statin use is associated with decreased prostate cancer recurrence in men treated with brachytherapy World J Urol. 2015 Jan; 33(1):93-7. . View in PubMed
  • Long-term quality of life and alimentary satisfaction after esophagectomy with colon interposition Ann Thorac Surg. 2014 Nov; 98(5):1713-9; discussion 1719-20. . View in PubMed
  • Capillary action: enrichment of retention and habitation of cells via micro-channeled scaffolds for massive bone defect regeneration J Mater Sci Mater Med. 2014 Aug; 25(8):1991-2001. . View in PubMed
  • Acute esophageal necrosis: a case series and long-term follow-up Ann Thorac Surg. 2014 Jul; 98(1):341-2. . View in PubMed
  • Hydroxyapatite scaffold pore architecture effects in large bone defects in vivo J Biomater Appl. 2014 Mar; 28(7):1016-27. . View in PubMed
  • Alimentary satisfaction, gastrointestinal symptoms, and quality of life 10 or more years after esophagectomy with gastric pull-up J Thorac Cardiovasc Surg. 2014 Mar; 147(3):909-14. . View in PubMed
  • Radiation-induced gene signature predicts pathologic complete response to neoadjuvant chemotherapy in breast cancer patients Radiat Res. 2014 Feb; 181(2):193-207. . View in PubMed
  • Endoscopic ultrasound staging of stenotic esophageal cancers may be unnecessary to determine the need for neoadjuvant therapy J Gastrointest Surg. 2014 Feb; 18(2):318-20. . View in PubMed
  • Low-dose whole brain radiotherapy combined with radiosurgery for primary CNS lymphoma achieving partial response to induction methotrexate-based chemotherapy J Radiosurg SBRT. 2014; 3(1):37-42. . View in PubMed
  • Diaphragmatic relaxing incisions during laparoscopic paraesophageal hernia repair Surg Endosc. 2013 Dec; 27(12):4532-8. . View in PubMed
  • Pharyngeal pH monitoring better predicts a successful outcome for extraesophageal reflux symptoms after antireflux surgery Surg Endosc. 2013 Nov; 27(11):4113-8. . View in PubMed
  • Early adoption of robotic pulmonary lobectomy: feasibility and initial outcomes Am Surg. 2013 Oct; 79(10):1075-80. . View in PubMed
  • Guided bone regeneration in long-bone defects with a structural hydroxyapatite graft and collagen membrane Tissue Eng Part A. 2013 Sep; 19(17-18):1879-88. . View in PubMed
  • Effect of Barrett’s esophagus surveillance on esophageal preservation, tumor stage, and survival with esophageal adenocarcinoma J Thorac Cardiovasc Surg. 2013 Jul; 146(1):31-7. . View in PubMed
  • A classification of the mechanisms producing pathological tissue changes J Med Eng Technol. 2013 May; 37(4):259-63. . View in PubMed
  • Aggravation of inflammatory response by costimulation with titanium particles and mechanical perturbations in osteoblast- and macrophage-like cells Am J Physiol Cell Physiol. 2013 Mar 01; 304(5):C431-9. . View in PubMed
  • The effect of clinical trial participation versus non-participation on overall survival in men receiving first-line docetaxel-containing chemotherapy for metastatic castration-resistant prostate cancer BJU Int. 2012 Dec; 110(11 Pt B):E575-82. . View in PubMed
  • Targeted radiotherapy for malignant gliomas Curr Drug Discov Technol. 2012 Dec; 9(4):268-79. . View in PubMed
  • The role of lymphadenectomy in the surgical treatment of esophageal and gastric cancer Curr Probl Surg. 2012 Aug; 49(8):471-515. . View in PubMed
  • Intraluminal pH and goblet cell density in Barrett’s esophagus J Gastrointest Surg. 2012 Mar; 16(3):469-74. . View in PubMed
  • The gene expression profile of cardia intestinal metaplasia is similar to that of Barrett’s esophagus, not gastric intestinal metaplasia Dis Esophagus. 2011 Sep; 24(7):516-22. . View in PubMed
  • Porous hydroxyapatite scaffold with three-dimensional localized drug delivery system using biodegradable microspheres J Control Release. 2011 Jul 30; 153(2):133-40. . View in PubMed
  • Day-to-day discrepancy in Bravo pH monitoring is related to the degree of deterioration of the lower esophageal sphincter and severity of reflux disease Surg Endosc. 2011 Jul; 25(7):2219-23. . View in PubMed
  • Thoraco-abdominal pressure gradients during the phases of respiration contribute to gastroesophageal reflux disease Dig Dis Sci. 2011 Jun; 56(6):1718-22. . View in PubMed
  • Drug-loaded porous spherical hydroxyapatite granules for bone regeneration J Mater Sci Mater Med. 2011 Feb; 22(2):349-55. . View in PubMed
  • Bone regeneration of tibial segmental defect using isotropic-pore structures hydroxyapatite/alumina bi-layered scaffold: in vivo pilot study J Long Term Eff Med Implants. 2011; 21(2):159-67. . View in PubMed
  • Pathophysiology and treatment of Barrett’s esophagus World J Gastroenterol. 2010 Aug 14; 16(30):3762-72. . View in PubMed
  • Progressive mucosal injury in patients with gastroesophageal reflux disease and increasing peripheral blood eosinophil counts Arch Surg. 2010 Apr; 145(4):363-6. . View in PubMed
  • Histomorphometric evaluation of immediately loaded SSII implants of different surface treatments in a dog model J Biomed Mater Res A. 2009 Aug; 90(2):396-400. . View in PubMed
  • In vitro scanning electron microscopic comparison of inner surface of exposed and unexposed nonresorbable membranes Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2009 Jun; 107(6):e5-e11. . View in PubMed
  • Validation of a rodent model of Barrett’s esophagus using quantitative gene expression profiling Surg Endosc. 2009 Jun; 23(6):1346-52. . View in PubMed
  • A compact VEGF signature associated with distant metastases and poor outcomes BMC Med. 2009 Mar 16; 7:9. . View in PubMed
  • High intraepithelial eosinophil counts in esophageal squamous epithelium are not specific for eosinophilic esophagitis in adults Am J Gastroenterol. 2008 Feb; 103(2):435-42. . View in PubMed
  • Thymidylate synthase polymorphisms and mRNA expression are independent chemotherapy predictive markers in esophageal adenocarcinoma patients Int J Oncol. 2008 Jan; 32(1):201-8. . View in PubMed
  • Towards the molecular characterization of disease: comparison of molecular and histological analysis of esophageal epithelia J Gastrointest Surg. 2007 Sep; 11(9):1095-104. . View in PubMed
  • Plasma DNA as a molecular marker for completeness of resection and recurrent disease in patients with esophageal cancer Arch Surg. 2007 Jun; 142(6):533-8; discussion 538-9. . View in PubMed
  • Reduction of interleukin 8 gene expression in reflux esophagitis and Barrett’s esophagus with antireflux surgery Arch Surg. 2007 Jun; 142(6):554-9; discussion 559-60. . View in PubMed
  • Gene expression patterns associated with p53 status in breast cancer BMC Cancer. 2006 Dec 06; 6:276. . View in PubMed
  • Concordance among gene-expression-based predictors for breast cancer N Engl J Med. 2006 Aug 10; 355(6):560-9. . View in PubMed
  • Clinical biology and surgical therapy of intramucosal adenocarcinoma of the esophagus J Am Coll Surg. 2006 Aug; 203(2):152-61. . View in PubMed
  • Antireflux surgery normalizes cyclooxygenase-2 expression in squamous epithelium of the distal esophagus Am J Gastroenterol. 2006 Jul; 101(7):1458-66. . View in PubMed
  • The impact of reflux composition on mucosal injury and esophageal function J Gastrointest Surg. 2006 Jun; 10(6):787-96; discussion 796-7. . View in PubMed
  • Molecular determinants in targeted therapy for esophageal adenocarcinoma Arch Surg. 2006 May; 141(5):476-81; discussion 481-2. . View in PubMed
  • The molecular portraits of breast tumors are conserved across microarray platforms BMC Genomics. 2006 Apr 27; 7:96. . View in PubMed
  • Estrogen-regulated genes predict survival in hormone receptor-positive breast cancers J Clin Oncol. 2006 Apr 10; 24(11):1656-64. . View in PubMed
  • Survivin, a potential biomarker in the development of Barrett’s adenocarcinoma Surgery. 2005 Oct; 138(4):701-6; discussion 706-7. . View in PubMed
  • Does routine serial computed tomography of the head influence management of traumatic brain injury? A prospective evaluation. J Trauma. 2004 Nov; 57(5):939-43.. View in PubMed
  • Mutation of GATA3 in human breast tumors Oncogene. 2004 Oct 07; 23(46):7669-78. . View in PubMed
  • A comparison of pancreaticogastrostomy and pancreaticojejunostomy following pancreaticoduodenectomy J Gastrointest Surg. 2003 Jul-Aug; 7(5):672-82. . View in PubMed
  • Repair of full-thickness defects in alimentary tract wall with patches of expanded polytetrafluoroethylene Ann Surg. 2002 May; 235(5):708-11; discussion 711-2. . View in PubMed