Ranjan Sudan, MD
General Surgeon, Weight Loss Surgeon
My Locations
About Me
I came to Duke from Nebraska, where I was a medical director for two weight loss surgery programs. I decided to become a weight loss surgeon because it gives me the chance to establish a long-term relationship with my patients. For many patients, weight loss surgery often feels like a fresh start, since they are able to get rid of some of the health problems they may have acquired due to their weight and do certain activities they couldn’t do before. I get a thrill out of being able help patients start this “new life.” My approach to care involves listening to what the patient wants out of the surgery, educating them about various treatment options and performing a full evaluation. Then, I work with the patient to come up with a treatment plan that meets their physical and mental health needs.
- Professor of Surgery, Surgery, Minimally Invasive Surgery 2018
- Professor in Psychiatry and Behavioral Sciences, Psychiatry & Behavioral Sciences, Adult Psychiatry & Psychology 2021
Call for an Appointment
Areas of Expertise
- Robotic Surgery
- Complex Revision Bariatric Surgery
- Hiatal Hernia
- Inguinal Hernia
Ratings and Reviews
The ratings and reviews are based on patient responses to the overall provider rating question from the survey. The question reads: “Using any number from 0 to 10, where 0 is the worst provider possible and 10 is the best provider possible, what number would you use to rate this provider?” Responses are converted to a 5-point rating system and applied consistently to all providers. Learn more about our survey process. Patients who see some types of providers receive a different version of the patient satisfaction survey. Those results are not available on DukeHealth.org.
Training and Education
In the News
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Clinical Focus and Research
I have specialized in bariatric surgery for over 10 years. My specific interests are the outcomes in obesity and surgical education. I am currently vice chair of education and director of the simulation lab with the department of surgery. I also have an active bariatric practice. I am widely published in bariatric surgery and surgical education with over 50 publications and over $200,000 in grant funding.
- OTTAVA Robotic System awarded by Auris Health, Inc. 2025 - 2025
- Usability of the Senhance Surgical Robotics System awarded by TransEnterix, Inc 2017 - 2020
- Alseidi, Adnan A., H William Craver, Andrew J. Dennis, Abbey Fingeret, Gerald M. Fried, Bonnie Simpson Mason, Ranjan Sudan, Stephen C. Yang, and Henri R. Ford. “Surgery and Surgical Training Before Graduate Medical Education: A Blue Ribbon Committee II, Medical Student Education Subcommittee Report.” Ann Surg 281, no. 1 (January 1, 2025): 7–10. https://doi.org/10.1097/SLA.0000000000006455.
- Bosley, Maggie E., Gabriel E. Cambronero, Gloria D. Sanin, Elizabeth C. Wood, Lucas P. Neff, B Fernando Santos, and Ranjan Sudan. “Moving the needle for laparoscopic common bile duct exploration: defining obstacles for the path forward.” Surgical Endoscopy 38, no. 11 (November 2024): 6753–61. https://doi.org/10.1007/s00464-024-11146-6.
- Stain, Steven C., E Christopher Ellison, Diana L. Farmer, Timothy C. Flynn, Julie A. Freischlag, Jeffrey B. Matthews, Rachel W. Newman, et al. “The Blue Ribbon Committee II Report and Recommendations on Surgical Education and Training in the United States: 2024.” Ann Surg 280, no. 4 (October 1, 2024): 535–46. https://doi.org/10.1097/SLA.0000000000006360.
- Juo, Y. Y., and R. Sudan. “Duodenal Switch and Its Derivatives.” In Duodenal Switch and Its Derivatives in Bariatric and Metabolic Surgery: A Comprehensive Clinical Guide, 25–38, 2023. https://doi.org/10.1007/978-3-031-25828-2_3.
- Sudan, R., and Y. Y. Juo. “Robotic-Assisted Bariatric Surgery.” In Obesity, Bariatric and Metabolic Surgery: A Comprehensive Guide: Second Edition, 905–14, 2023. https://doi.org/10.1007/978-3-030-60596-4_38.
- Sudan, R., and M. Landin. “Robot-assisted biliopancreatic diversion with duodenal switch.” In Robotic Surgery: Second Edition, 759–66, 2021. https://doi.org/10.1007/978-3-030-53594-0_61.
- Sudan, R. “Association for surgical education: highlights and selected abstracts from the 2014 annual meeting.” In Teach Learn Med, 27:105–9, 2015. https://doi.org/10.1080/10401334.2014.979188.
Insurance Accepted
Duke Health contracts with most major health insurance carriers and transplant networks, including the ones listed below.
Please note that this provider does not accept Medicaid for weight loss surgery procedures.
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Aetna
- Aetna Choice POS, Aetna Choice POS II
- Aetna Elect Choice HMO, Aetna Open Access Elect Choice
- Aetna Health Network Only, Aetna Health Network Option
- Aetna HMO
- Aetna Limited Benefit Insurance PPO
- Aetna Managed Choice POS
- Aetna Medicare Assure Plan (HMO D-SNP)
- Aetna Medicare Eagle Plan (PPO)
- Aetna Medicare Essential Plan (PPO)
- Aetna Medicare Value Plan (HMO)
- Aetna Open Access HMO, Open Access Aetna Select, Aetna Open Access Managed Choice
- Aetna Open Choice PPO
- Aetna PCP Coordinated POS Plan
- Aetna Quality Point of Service (QPOS)
- Aetna Select HMO
- Aetna Traditional Choice
- Aetna Voluntary Indemnity Group Plan
- Aetna Whole Health – Duke WakeMed WKCC
- Aetna/CVS Health
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Ambetter
- Ambetter of North Carolina
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Blue Cross Blue Shield of NC
- Blue Advantage
- Blue Medicare (HMO, PPO)*
- Blue Options (123, PPO, HSA)
- Blue Select
- NC State Employees Health Plan
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*Duke HomeCare and Hospice does not participate in the plan.
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Cigna
- Cigna Behavioral Health (*Limited eligibility)
- Cigna Choice Plus
- Cigna Connect Individual Family Plan
- Cigna Open Access
- Cigna Open Access Plus
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*Please call Cigna Behavioral Heath to see if the provider is participating in your plan.
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Duke Group Plans
- Duke Basic
- Duke Select
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Experience Health
- Experience Health Medicare Advantage (HMO) Plan
- Gateway Health Alliance
- Healthgram
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Humana
- Humana Choice (PPO)
- Humana Choice - Medicare Advantage (PPO)
- Humana ChoiceCare - Medicare Advantage (PPO)
- Humana Gold Choice - Medicare Advantage (PFFS)
- Humana Gold Plus - Medicare Advantage (HMO)
- Humana Medicare Advantage Group Plan - NC State Retirees
- MedCost
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Medicare
- First Medicare Direct
- Medicare Part A
- Medicare Part B
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NC Medicaid
- AmeriHealth Caritas North Carolina
- Carolina Complete Health
- Healthy Blue
- NC Medicaid Direct
- WellCare of North Carolina
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TRICARE
- TRICARE Prime
- TRICARE Prime Remote
- TRICARE Select
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United Healthcare
- AARP Medicare Advantage Plan 2 (HMO-POS)
- AARP Medicare Complete (HMO, PPO)*
- AARP Medicare Complete Essential (HMO)*
- All Savers Alternate Funding
- All Savers Fully Insured
- United Healthcare (HMO, PPO, POS)**
- United Healthcare Charter/Charter Balance/Charter Plus
- United Healthcare Choice/Choice Plus
- United Healthcare Core/Core Essential
- United Healthcare Navigate/Navigate Plus/Navigate Balanced
- United Healthcare Option PPO
- United Healthcare Passport Connect Choice/Choice Plus
- United Healthcare Passport Connect Options PPO
- United Healthcare Select/Select Plus
- United Healthcare Shared Services - Harvard Pilgrim/UHC Options PPO Network
- United Medical Resources (UMR)
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*Duke HomeCare and Hospice and mental health providers do not participate with the plan.
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**Duke Health does not participate in UHC plans on the Health Insurance Marketplace.
External Relationships
- American College of Surgeons
- Johnson and Johnson
- Medtronic