• Appointments | Patient Portal


Northwest Indiana Medical Group (NEW)
  • Quick Links
    • For Patients
      • For Patients

        • Patients & Visitors
        • Award Nominations
        • Accepted Insurance
        • All Appointments
        • Billing Information
        • Coordinated Care
        • Helpful Information
        • Medicare Helpline
        • Patient Forms
        • Patient Portal
        • Prescription Refills
        • Telehealth Info
          • Services
            • Services

              • View All Services
              • Audiology
              • Bariatrics
              • Cardiac Electrophysiology
              • Cardiology
              • Cardiothoracic Surgery
              • Gastroenterology
              • General Surgery
              • Neurology
              • OB/GYN
              • Oncology & Hematology
              • Orthopedics
              • Pediatrics
              • Primary Care
              • Pulmonary & Critical Care
              • Sleep Medicine
              • Urgent Care
              • Urology
                • Providers
                • Locations
                • About
                  • About

                    • About Us
                    • Affiliations
                    • Newsroom
                    • Organized Health Care Arrangement Status
                      • Contact
                      • NWHealthIN.com
                      • Northwest Health
                        • Northwest Health - La Porte
                        • Northwest Health - Porter
                        • Northwest Health - Starke
                        • Northwest Health - Lakeshore Surgicare
                        • Northwest Medical Group
                      • Make an Appointment
                      • Patient Portal
                      • Careers
                      Home/Providers/Simsir, Sinan, M.D.
                      eNewsletter Redirect
                      Notice of Non-Discrimination
                      About Us
                      Contact Us
                      For Patients
                      Locations
                      Providers
                      Services
                      PPS - Webpages
                      Return to Search Results
                      Simsir, Sinan, M.D.
                      Patient Portal
                      Call: (219) 983-6380
                      Download Profile »

                       

                      Sinan Simsir, M.D.

                      Cardiothoracic Surgery


                      Appointments

                      Request An Appointment
                      • Location Information

                        • Northwest Medical Group - Cardiovascular & Thoracic Surgery

                          85 E. US Highway 6, Suite 310
                          Valparaiso, IN 46383
                          (219) 983-6380
                          Monday - Friday: 9 a.m. - 5 p.m.
                        • View Map
                      • Credentials & Education

                        Medical School

                        • Marmara University Medical School, Istanbul, Turkey

                        Residency

                        • University of Massachusetts Hospital, Worcester, MA
                        • University of Minnesota Fairview Hospital, Minneapolis, MN

                        Board Certifications

                        • American Board of Surgery
                        • American Board of Thoracic Surgery, Cardiothoracic Surgery

                        Fellowship

                        • Duke University Medical Center, Durham, NC

                      About

                      Sinan Simsir, M.D., is a cardiothoracic surgeon with more than 20 years of experience in treating complex heart and lung conditions. His work has included heart and lung transplantation, as well as the use of ventricular assist devices. Dr. Simsir has also held leadership roles in transplant and advanced heart failure programs at several well-established medical centers across the country. He believes his ability to clearly explain procedures and reassure patients has earned him the trust of both his patients and their families.

                      Conditions treated include:

                      • Heart valve disorders
                      • Aortic aneurysm
                      • Coronary artery disease
                      • Heart failure
                      • Congenital heart defects
                      • Lung cancer
                      • Lung disease/disorders
                      • Pleural disease
                      • Pneumothorax
                      • Mediastinal tumors, including thymic
                      • Chest wall tumors

                      Sinan Simsir, M.D., is a cardiothoracic surgeon with more than 20 years of experience in treating complex heart and lung conditions. His work has included heart and lung transplantation, as well as the use of ventricular assist devices. Dr. Simsir has also held leadership roles in transplant and advanced heart failure programs at several well-established medical centers across the country. He believes his ability to clearly explain procedures and reassure patients has earned him the trust of both his patients and their families. Conditions treated include: Heart valve disorders Aortic aneurysm Coronary artery disease Heart failure Congenital heart defects Lung cancer Lung disease/disorders Pleural disease Pneumothorax Mediastinal tumors, including thymic Chest wall tumors

                      Northwest Medical Group

                      • ADA Accessibility Policy
                      • Notice of Privacy Practices
                      • Privacy Policy
                      • Change Your Privacy Choices
                      • Terms & Conditions

                      Copyright ©2025. All rights reserved.

                      A medical group of AllianceHealth Oklahoma®

                      Services

                      • Audiology
                      • Bariatrics
                      • Cardiac Electrophysiology
                      • Cardiology
                      • Cardiothoracic Surgery
                      • Gastroenterology
                      • General Surgery
                      • Neurology
                      • OB/GYN
                      • Oncology & Hematology
                      • Orthopedics
                      • Pediatrics
                      • Primary Care
                      • Pulmonary & Critical Care
                      • Sleep Medicine
                      • Urgent Care
                      • Urology

                      For Patients

                      • Award Nominations
                      • Accepted Insurance
                      • All Appointments
                      • Billing Information
                      • Coordinated Care
                      • Helpful Information
                      • Medicare Helpline
                      • Patient Forms
                      • Patient Portal
                      • Prescription Refills
                      • Telehealth Info

                      About

                      • Affiliations
                      • Newsroom
                      • Organized Health Care Arrangement Status

                      Notice of Nondiscrimination
                      • English,
                      • አማርኛ,
                      • العربية,
                      • বাংলা,
                      • ျမန္မာဘာသာ,
                      • tsalagi gawonihisdi,
                      • 繁體中文,
                      • Chahta,
                      • Oroomiffa,
                      • Nederlands,
                      • Français,
                      • Kreyòl Ayisyen,
                      • Deutsch,
                      • ગુજરાતી,
                      • हिंदी,
                      • Hmoob,
                      • Igbo asusu,
                      • Ilokano,
                      • Italiano,
                      • 日本語,
                      • 한국어,
                      • Ɓàsɔ́ɔ̀‑wùɖù‑po‑nyɔ̀,
                      • ພາສາລາວ,
                      • Kajin Ṃajōḷ,
                      • ខ្មែរ,
                      • Diné Bizaad,
                      • नेपाली,
                      • Deitsch,
                      • فارسی,
                      • Polski,
                      • Português,
                      • ਪੰਜਾਬੀ,
                      • Română,
                      • Русский,
                      • Gagana fa'a Sāmoa,
                      • Srpsko‑hrvatski,
                      • Español,
                      • ܣܘܼܪܸܬ݂,
                      • Tagalog,
                      • ภาษาไทย,
                      • Türkçe,
                      • Українська,
                      • اُردُو,
                      • Tiếng Việt,
                      • èdè Yorùbá,
                      • עִברִית
                      Primary Care Appointments:
                      888-SAME-DAY
                      Loading... Loading...