Alan R. Posner MD
Alan R. Posner
MD
Clinical Assistant Professor
Jacobs School of Medicine & Biomedical Sciences
Specialty/Research Focus
Clinical Research; Community Health Research; Gastrointestinal Surgery; Medication Therapy Management; Minimally Invasive Surgery; Nutrition; Obesity; Real-world approaches; Robotic Surgery; Surgery - Bariatric; Surgery - Laparoscopic; Surgery – Minimally Invasive and Robotic
Contact Information
Patient Care
Patient Care
This faculty member is affiliated with UBMD, practicing physicians who are also professors in the Jacobs School.
View this physician on UBMDProfessional Summary:
Dr. Posner has research interest in clinical outcomes and obesity surgery and nonsurgical obesity treatment and a great interest in robotic surgery including
Involving robotic platforms.
Education and Training:
- Fellowship, Minimally invasive surgery fellowship, Mt. Sinai School of Medicine, New York (1997)
- BS, Rensselar Polytechnic Institute
- MD, Albany Medical College, Albany
Employment:
- Site chief–surgery, Surgery, Buffalo General Medical Center (2024-present)
- Chief, Division of minimally invasive surgery, Surgery, State University of New York at Buffalo (1997-present)
- Associate Professor of clinical surgery, Surgery, State University of New York at Buffalo
Research Expertise:
- Bariatric Surgery: Surgery for weight loss in the morbidly obese
- Laparoscopy/ General Surgery/ Trauma/ Critical Care
Journal Articles:
- Hanna C, Comstock F, Chatrath S, Posner A, Butsch J, Blum K, Gold MS, Georger L, Mastrandrea LD, Quattrin T, Thanos PK. (2025) Utilization of a precision medicine genetic and psychosocial approach in outcome assessment of bariatric weight loss surgery: a narrative review. Frontiers in public health (Jan), 13: 1516122. doi:10.3389/fpubh.2025.1516122
- Thanos PK, Hanna C, Mihalkovic A, Hoffman A, Posner A, Butsch J, Blum K, Georger L, Mastrandrea LD, Quattrin T. (2023) Genetic Correlates as a Predictor of Bariatric Surgery Outcomes after 1 Year. Biomedicines (Sep), 11(10). doi:10.3390/biomedicines11102644
- Thanos PK, Hanna C, Mihalkovic A, Hoffman AB, Posner AR, Busch J, Smith C, Badgaiyan RD, Blum K, Baron D, Mastrandrea LD, Quattrin T. (2023) The First Exploratory Personalized Medicine Approach to Improve Bariatric Surgery Outcomes Utilizing Psychosocial and Genetic Risk Assessments: Encouraging Clinical Research. Journal of personalized medicine (Jul), 13(7). doi:10.3390/jpm13071164
- Cairo SB, Majumdar I, Pryor A, Posner AR, Harmon CM, Rothstein DH, Delivery of Surgical Care Committee of the American Academy of Pediatrics Section on Surgery. (2018) Response to Letter to the Editor; Comments on "Challenges in Transition of Care for Pediatric Patients after Weight-Reduction Surgery: a Systematic Review and Recommendations for Comprehensive Care". Obes Surg (Jun).
- Cairo SB, Majumdar I, Pryor A, Posner AR, Harmon CM, Rothstein DH, Delivery of Surgical Care Committee of the American Academy of Pediatrics Section on Surgery. (2018) Challenges in Transition of Care for Pediatric Patients after Weight-Reduction Surgery: a Systematic Review and Recommendations for Comprehensive Care. Obes Surg (Apr), 28(4): 1149-1174.
- Geiling B, Vandal G, Posner AR, de Bruyns A, Dutchak KL, Garnett S, Dankort D. (2013) A modular lentiviral and retroviral construction system to rapidly generate vectors for gene expression and gene knockdown in vitro and in vivo. PLoS One (Oct), 8(10): 76279-76279.
- Dayton MT, Dempsey DT, Larson GM, Posner AR. (2012) New paradigms in the treatment of small bowel obstruction. Curr Probl Surg (Nov), 49(11): 642-717.
- Hassett JM, Nawotniak R, Cummiskey D, Berger R, Posner A, Seibel R, Hoover E. (2002) Maintaining outcomes in a surgical residency while complying with resident working hour regulations. Surgery (Oct), 132(4): 635-9; discussion 639-41.
- Edye M, Salky B, Posner A, Fierer A. (1998) Sac excision is essential to adequate laparoscopic repair of paraesophageal hernia. Surgical endoscopy (Oct), 12(10): 1259-63.
Professional Memberships:
- ASMBS–the American Society for metabolic and bariatric surgery; This is the largest organization for weight loss surgeons in the United States and is considered an international organization (2021–2025)
- Western New York chapter of the American College of surgeons; This is the local chapter of the American College of surgeons (1997–2025)
- SAGES - Society of American Gastrointestinal and Endoscopic Surgeons; This is the Premier Society for endoscopic and laparoscopic surgery (1996–2025)
- American College of Surgeons (1993–2025)