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Gabriel Ionescu

  • ASSISTANT PROFESSOR Medicine, Gastroenterology
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  • Gastroenterology

  • American Board of Internal Medicine


  • MD, Instit De Medicina Si Farmacie

  • Residency, Internal Medicine
    St. Luke's-Roosevelt Hospital Ctr.

  • Fellowship, Hepatology
    Mount Sinai Hospital

  • Fellowship, Gastroenterology
    St. Luke's-Roosevelt Hospital Ctr.


    I was born in 1969, in Constanta, Romania and reared in a family for which hard work and perseverance are important values. From very early on, I received a humanistic education, with concentration on languages, English and French, in addition to piano and violin. My passion for the secrets of the human body started in primary school, while being fascinated by the process of dismantling the mannequin that the 7th graders were using for their anatomy class.

    Four years of Natural Sciences College and six years of medical school training represented a continuous growth towards what became a lifelong commitment to healing people. The 9-month military service and promotion to platoon leader gave me the necessary sense of discipline and maturity, basic to the medical profession.

    In 1995, following my ranking in top 8% at the National Residency Exam, I opted for an ENT position at the top ENT University Hospital in Eastern Europe. This represented a period of acquisition of procedural skills, in surgical and endoscopic interventions.

    Throughout this time I continued to lean towards Medicine, since it always offered the greatest opportunity for a comprehensive understanding of the human body and of the mechanisms of disease. Joining an excellent academic training Program, fulfilled my desire for intellectual challenge, teaching me important lessons about working in a team and about clinical decision-making process, but also about the need to foster good personal relationship with my peers, in order to better help our patients.

    As an intern I was impressed by Doctor Kotler and his excellent GI consulting team. My interest in this field turned into full commitment in December 1999, when the opportunity of joining his research lab was offered. Since then, it has been a privilege to work alongside and within the gastroenterology division, guided by mentors like doctor Kotler and Dr Jeanine Albu. Exposure to the HIV clinic and to the medical camps in Kenya taught me the importance of humility and guided my career path towards providing best care possible to the full socio-economic spectrum, with emphasis on the underprivileged. Joining the prestigious Icahn School of Medicine at Mount Sinai will hopefully open avenues for academic progress.


  • -
    Inada-Lange Foundation for AIDS Research Award, for providing free medical services to members of Pumwani Village, Nairobi, Kenya, 2002, 2010.


AIDS/HIV, Adipose, Obesity

Human nutrition and metabolism, and effects of HIV disease on the gastrointestinal tract and on body fat distribution.


Kothari ND, Engelson ES, Drake V, Mehdi A, Ionescu G, Kotler DP. Effect of HIV infection on the prevalence of colorectal adenomas during screening colonoscopy. Journal of clinical gastroenterology 2010 Jan; 44(1).

Dodell GB, Kotler DP, Engelson ES, Ionescu G, Gimelshteyn Y, Pollack A, Gallagher D, Berglund L, Albu JB. Intermuscular and subcutaneous adipose tissue distributions differ in HIV+ versus HIV-men and women. International journal of body composition research 2009; 7(2).

He Q, Engelson ES, Ionescu G, Glesby MJ, Albu JB, Kotler DP. Insulin resistance, hepatic lipid and adipose tissue distribution in HIV-infected men. Antiviral therapy 2008; 13(3).

Dela Cruz AC, Engelson E, Ionescu G, Dubrovskaya V, Kotler D. Hepatitis C treatment in an urban population. Hepatology (Baltimore, Md.) 2010 Oct; 52(4).

Kotler DP, Ionescu G, Johnson JA, Inada Y, He Q, Engelson ES, Albu JB. Studies of adipose tissue metabolism in human immunodeficiency virus-associated lipodystrophy. Clinical infectious diseases : an official publication of the Infectious Diseases Society of America 2003; 37 Suppl 2.

Ionescu G, Kotler DP, Engelson ES, Agin D, Inada Y. Serum complement components in HIV-infected individuals with and without fat redistribution (lipodystrophy). Journal of acquired immune deficiency syndromes (1999) 2000 Dec; 25(4).

He Q, Engelson ES, Wang J, Kenya S, Ionescu G, Heymsfield SB, Kotler DP. Validation of an elliptical anthropometric model to estimate visceral compartment area. Obesity research 2004 Feb; 12(2).

Industry Relationships

Physicians and scientists on the faculty of the Icahn School of Medicine at Mount Sinai often interact with pharmaceutical, device and biotechnology companies to improve patient care, develop new therapies and achieve scientific breakthroughs. In order to promote an ethical and transparent environment for conducting research, providing clinical care and teaching, Mount Sinai requires that salaried faculty inform the School of their relationships with such companies.

Dr. Ionescu did not report having any of the following types of financial relationships with industry during 2015 and/or 2016: consulting, scientific advisory board, industry-sponsored lectures, service on Board of Directors, participation on industry-sponsored committees, equity ownership valued at greater than 5% of a publicly traded company or any value in a privately held company. Please note that this information may differ from information posted on corporate sites due to timing or classification differences.

Mount Sinai's faculty policies relating to faculty collaboration with industry are posted on our website. Patients may wish to ask their physician about the activities they perform for companies.

Insurance Information

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