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Johns Hopkins Medicine On-site

JHAH launches its 2025 program of on-site rotations

JHAH is proud to announce the start of our 2025 JHM On-site program. Continuing with our person-centered care model, Johns Hopkins Medicine (JHM) On-site has Johns Hopkins Medicine expert physicians from a wide range of specialties share their expertise during ongoing medical rotations on the ground at JHAH, from reviewing cases, providing patient consultations, to performing surgeries for our patients.

Depending upon their area of expertise and clinical specialty, JHAH will provide registered patients with details for requesting a consultation with the physician, as the criteria may differ for each specialty. Other JHM On-site physicians will be pre-scheduled for complex cases and procedures.

Become a JHAH patient

Eligible Saudi Aramco employees and their dependents are invited to register for healthcare at JHAH

Learn how to become a JHAH patient

Current & Upcoming Visits 2025


JHM On-site physicians visit dates may be subject to change based on international travel events beyond our control.

January 12-16, 2025

JHM Dr. Vincent Obias

Vincent Obias, M.D., M.S.

Chief of Colorectal Surgery, Johns Hopkins Medicine, National Capital Region
Professor of Surgery

Johns Hopkins Medicine Colorectal Surgery expert, Dr. Vincent Obias will join the JHAH General Surgery team on surgical rotation at JHAH from January 12-16, 2025.

Dr. Vincent Obias specializes in minimally invasive robotic colon & rectal surgery with a focus on robotic surgery. He treats a variety of conditions, including colorectal cancers; inflammatory bowel disease, Crohn’s disease, and ulcerative colitis; and diverticulitis and functional anorectal disorders. Dr. Obias has written articles on a variety of subjects, including rectal cancer, post-operative recovery, trauma-critical care, and transplant surgery.
Dr. Obias’s visit is allotted for pre-scheduled complex cases and procedures for JHAH patients.


Colorectal surgery at Johns Hopkins Aramco Healthcare  

Our Colorectal Surgical team at Johns Hopkins Aramco Healthcare (JHAH) is dedicated experts in treating colorectal and anal cancers and inflammatory bowel disease. The team also provides endoscopy, stoma care, and enhanced recovery after surgery care, as well as complex abdominal wound management.

January 19-23, 2025

Johns Hopkins Medicine Bariatric Surgery expert Dr. Hien Nguyen

Hien Nguyen, M.D.

Director, Comprehensive Hernia Center
Associate Professor of Surgery

Johns Hopkins Medicine Bariatric Surgery expert Dr. Hien Nguyen will join the JHAH Dhahran Bariatric Surgery Team on surgical rotation January 19-23, 2025.

Dr. Nguyen, Director, Comprehensive Hernia Center, Associate Professor of Surgery, is an expert in single-incision surgery, robotic surgery, and laparoscopic bariatric surgery.

Dr. Nguyen’s visit is allotted for pre-scheduled complex cases and procedures for JHAH patients.


Bariatric Surgery at Johns Hopkins Aramco Healthcare 

The JHAH Bariatric Surgery Program has an excellent long-term success rate. The program achieves consistently high-quality outcomes and delivers comprehensive follow-up care to help patients sustain a healthier lifestyle. 

January 19-23, 2025

Jin He, M.D.

Division Chief, Hepato-Pancreato-Biliary Surgery
Associate Professor of Surgery

Johns Hopkins Medicine Complex Surgery, Oncology expert, Dr. Jin He, will join the JHAH Dhahran General Surgery team on medical rotation from January 19-23, 2025.

Dr. He specializes in diseases and tumors of the pancreas, liver, bile duct and gallbladder. He performs open as well as minimally invasive (robotic and laparoscopic) surgery, including the Whipple procedure.

Dr. He’s research focuses on personalized treatment through stratifying pancreatic tumors on their genetic features. He holds several patents in anti-cancer vascular targeting agents and has published extensively in peer-reviewed journals and lectured internationally. He serves on several national committees including the NCCN panel on neuroendocrine tumors and the Alliance for Clinical Trials in Oncology.

Dr. He’s visit is allotted for pre-scheduled complex cases and procedures.


General Surgery at Johns Hopkins Aramco Healthcare 

At JHAH, we focus on four types of general surgeries – bariatric (obesity), colorectal, oncology and pediatric – providing excellence and years of experience within these medical specialties.

If you or a family member require surgery, you can be assured that our skilled teams are highly professional, whether surgery is elective, emergency or trauma related. In all cases, we take great care to be as minimally invasive as possible. 

January 26-30, 2025

JHM - Karen Chiu Wang, M.D.

Karen Chiu Wang, M.D.

Fellowship Director, AAGL Fellowship in Minimally Invasive Gynecologic Surgery
Assistant Professor of Gynecology and Obstetrics

Johns Hopkins Medicine Gynecologic Surgery Expert, Dr. Karen Wang, will join JHAH on a surgical rotation from January 26-30, 2025.

Karen Wang, M.D., is a fellowship-trained minimally invasive gynecologic surgeon whose primary clinical focus is on the surgical management of benign gynecologic conditions, including abnormal bleeding, fibroids, endometriosis, pelvic pain, and office procedures. Her research interests include quality and safety, surgical outcomes, and surgical training.

Dr. Wang's visit is allotted for pre-scheduled complex cases and procedures for JHAH patients.


Obstetrics and Gynecology at Johns Hopkins Aramco Healthcare

With the latest surgical techniques and expertise, including high-risk and general obstetrics, and infertility services, our Obstetrics and Gynecology team are here to diagnose, treat and support you.

Meet Dr. Brian Matlaga

Disclaimer: The following footage was filmed during Dr. Matlaga’s visit at JHAH in 2019 and prior to COVID-19 restrictions.