Department of Internal Medicine
Department of Internal Medicine

Faculty

Critical Care / Pulmonary / Sleep Medicine

Richard J. Castriotta, M.D. , FCCP

Richard J.  Castriotta, M.D. , FCCP
Professor of Internal Medicine | UT Physicians Profile Page
Director, Division of Pulmonary and Sleep Medicine
Associate Faculty, John P. McGovern Center for Health, Humanities and the Human Spirit
Associate Faculty, Department of Pediatrics.
Chair, Interfaculty Council, The University of Texas Health Science Center at Houston. 
Chairman of the Institutional Ethics Committee, Memorial Hermann Hospital - TMC
Medical Director of the Sleep Disorders Center at Memorial Hermann Hospital - TMC
Program Director, The University of Texas Sleep Medicine Fellowship
Member, UT-System Faculty Advisory Council
Member, UT System Institutional Conflict of Interest Committee
Member, UTHSC-H Scientific Advisory Committee, Center for Clinical and Translational Services
Member, Steering Committee, ACCP Palliative and End-of-Life NetWork

Dr. Castriotta has served as President of the Southern Sleep Society, Chairman of the Connecticut Thoracic Society Section on Sleep Medicine, Chair of the American College of Chest Physicians (ACCP) Sleep NetWork and Vice Chair of the Southern Medical Association Chest Disease Section. He is currently a member of the ACCP Sleep Institute Steering Committee and the SEEK Editorial Board. He is a Fellow of the American College of Chest Physicians and of the American Academy of Sleep Medicine. 

Board Certifications:

  • American Board of Internal Medicine-Internal Medicine
  • American Board of Internal Medicine-Pulmonary Medicine
  • American Board of Internal Medicine-Sleep Medicine
  • American Board of Sleep Medicine

Special Interests:

  • sleep disorders
  • interstitial lung disease
  • pulmonary hypertension
  • asthma
  • tuberculosis


Bela Patel, MD, DABSM, FCCP

Bela Patel, MD
Associate Professor | UT Physicians Profile Page
Director, Division of Critical Care Medicine
Program Director of Pulmonary and Critical Medicine Fellowship Program Divisions of Critical Care, Pulmonary and Sleep Medicine
Assistant Chief Medical Officer
Executive Medical Director of Critical Care Medicine
MICU/MIMU Medical Director Memorial Hermann Hospital - Texas Medical Center

Education/Training:

  • Medical School : The University of Texas Medical School at Houston
  • Residency in Internal Medicine: The University of Texas Medical School at Houston
  • Fellowship in Pulmonary, Critical Care and Sleep: The University of Texas Medical School at Houston

Special Interests:

  • Interests in Pulmonary: Research in Pulmonary Hypertension
  • Interests in Critical Care: Outcomes, Quality Improvement, Patient Safety, Clinical Trials
  • Interests in Education: Innovative teaching methods


Khalid F. Almoosa, MD, MSc, FCCP

Khalid F.  Almoosa, MD, MSc
Assistant Professor of Medicine | UT Physicians Profile Page

Medical Director, Transplant Surgery ICU

Assistant Medical Director, Medical ICU

Education/Training:

  • Medical School-Royal College of Surgeons in Ireland
  • Residency in Internal Medicine: Medical College of Wisconsin
  • Fellowship in Pulmonary & Critical Care Medicine-University of Cincinnati
  • Master of Science in Clinical Research-University of Cincinnati

Board Certifications:

  • American Board of Internal Medicine-Pulmonary Medicine
  • American Board of Internal Medicine-Critical Care Medicine

Special Interests:

  • Quality improvement / Patient safety
  • Critical Care
  • health policy
  • End-of-Life care
  • Lymphangiomyoleiomatosis


Pratik Doshi, MD

Pratik Doshi, MD
Assistant Professor of Emergency Medicine | UT Physicians Profile Page

Education/Training:

  • Fellowship at Henry Ford Hospital, Critical Care Medicine

Board Certifications:

  • American Board of Internal Medicine-Internal Medicine
  • American Board of Internal Medicine-Critical Care Medicine


Rosa M. Estrada-y-Martin, MD, MSc, FCCP

Rosa  M. Estrada-y-Martin, MD
Associate Professor of Medicine | UT Physicians Profile Page
Director, Pulmonary Clinic Lyndon B Johnson General Hospital
Director, Lyndon B. Johnson Hospital Tuberculosis Clinic
Director, Pulmonary Diagnostics Lyndon B Johnson General Hospital
Associate Program Director, Pulmonary & Critical Care Medicine Fellowship

Education/Training:

  • Physician and Surgeon-The University of “San Carlos de Guatemala”
    Internal Medicine-The University of “San Carlos de Guatemala”
    Residency in Internal Medicine-University of Massachusetts
    Fellowship – The University of Texas Health Science Center at Houston
    Master of Science in Clinical Research-The University of Texas, Health Science Center at Houston

Board Certifications:

  • American Board of Internal Medicine-Internal Medicine
  • American Board of Internal Medicine-Critical Care Medicine

Special Interests:

  • COPD
  • Sepsis and Septic Shock
  • Marijuana and tobacco use in COPD
  • Pulmonary Pathophysiology in Sepsis


Iman Hassan, MD

Iman Hassan, MD
Assistant Professor of Medicine | UT Physicians Profile Page

Education/Training:

  • Medical School: SUNY Downstate
  • Internal Medicine Residency: New York Presbyterian Hospital-Weill Cornell
  • Pulmonary & Critical Care Fellowship: New York Presbyterian Hospital-Weill Cornell
  • Emergency Ultrasound Fellowship: The University of Texas Health Science Center Houston

Board Certifications:

  • American Board of Internal Medicine-Internal Medicine
  • American Board of Internal Medicine-Pulmonary Medicine
  • American Board of Internal Medicine-Critical Care Medicine

Special Interests:

  • Critical Care Ultrasound
  • Global Health


Robert Lodato, MD, PhD

Robert  Lodato, MD, PhD
Associate Professor of Medicine | UT Physicians Profile Page

Education/Training:

  • Fellowship in Pulmonary & Critical Care Medicine-Johns Hopkins University

Board Certifications:

  • American Board of Internal Medicine-Internal Medicine
  • American Board of Internal Medicine-Pulmonary Medicine

Special Interests:

  • Sepsis. Acute Respiratory Failure


Ruckshanda Majid, MD

Ruckshanda  Majid, MD
Assistant Professor of Medicine | UT Physicians Profile Page
Associate Medical Director, Sleep Disorders Center, Memorial Hermann Hospital – TMC
Co-Medical Director, Harris County Hospital District Sleep Disorders Center, Lyndon B. Johnson Hospital
Associate Program Director, The University of Texas Sleep Medicine Fellowship
Director, Sleep Clinic, Lyndon B. Johnson General Hospital

Education/Training:

  • Medical School: Aga Khan University
  • Internal Medicine Residency: The University of Texas Health Sciences Center Houston
  • Pulmonary and Critical Care Fellowship: The University of Texas Health Sciences Center Houston
  • Sleep Fellowship: The University of Texas Health Sciences Center Houston

Board Certifications:

  • American Board of Internal Medicine - Internal Medicine
  • American Board of Internal Medicine - Pulmonary Medicine
  • American Board of Internal Medicine - Critical Care Medicine
  • American Board of Internal Medicine - Sleep Medicine

Special Interests:

  • Cheyne-Stokes Breathing
  • Restless leg Syndrome
  • Relationship between the development of preeclampsia and obstructive sleep apnea in pregnancy
  • Obesity Hypoventilation Syndrome
  • Pulmonary hypertension and obstructive sleep apnea


Brandy J. McKelvy, MD

Brandy  J. McKelvy, MD
Assistant Professor of Medicine | UT Physicians Profile Page

Internal Medicine Core Faculty

Assistant Director, Required Critical Care Course - 4th year medical students

Education/Training:

  • Medical school - The University of Texas Medical School at Houston
  • Internal Medicine Residency - The University of Texas Medical School at Houston
  • Pulmonary, Critical Care and Sleep Fellowship - The University of Texas Medical School at Houston

Board Certifications:

  • American Board of Internal Medicine-Internal Medicine
  • American Board of Internal Medicine-Pulmonary Medicine
  • American Board of Internal Medicine-Critical Care Medicine
  • American Board of Internal Medicine-Sleep Medicine

Special Interests:

  • Critical Care
  • Pulmonary Hypertension
  • Sleep Medicine
  • Resident and Student Education


Anandhi T. Murugan MD, MPH

Anandhi T. Murugan MD, MPH
Assistant Professor of Medicine | UT Physicians Profile Page

Education/Training:

  • Medical School : Madras Medical College, Chennai, India
  • Graduate School: The University of Texas School of Public Health, Houston
  • Residency in Internal Medicine: State University of New York Downstate Medical Center  
  • Fellowship in Pulmonary and Critical Care Medicine: The University of Texas Medical Branch at Galveston
  • Fellowship in Sleep Medicine: Baylor College of Medicine

Board Certifications:

  • American Board of Internal Medicine-Internal Medicine
  • American Board of Internal Medicine-Pulmonary Medicine
  • American Board of Internal Medicine-Critical Care Medicine

Awards and Grants:

  • Jeane B. Kempner Postdoctoral Scholar Award, 2008 - 2009
  • Academic Fellowship Award for Research Excellence, UTMB, 2008 - 2009
  • Academic Fellowship Award for Research Excellence, UTMB, 2007 – 2008
  • The CHEST Foundation Clinical Research in Women's Health Award, 2007 - 2008

Special Interests:

  • Interests in Pulmonary: Lung Physiology, Asthma, COPD and Interstitial Lung Disease
  • Interests in Critical Care: End of Life Care and Medical Outcomes
  • Interests in Sleep: Gender disparities in Sleep disorders


George M. Nassif, MD

George M.  Nassif, MD
Assistant Professor of Medicine | UT Physicians Profile Page

Education/Training:

  • MD: The University of Texas Southwestern Medical School at Dallas, TX
  • Residency: State University of New York Downstate Medical Center at Brooklyn
  • Pulmonary & Critical Care Medicine Fellowship: State University of New York Downstate Medical Center at Brooklyn
  • Sleep Medicine Fellowship: University of Missouri at Columbia

Board Certifications:

  • American Board of Internal Medicine - Internal Medicine
  • American Board of Internal Medicine - Pulmonary Medicine
  • American Board of Internal Medicine - Critical Care Medicine
  • American Board of Internal Medicine - Sleep Medicine

Special Interests:

  • Nontuberculous mycobacterial disease
  • ICU Mortality
  • Hypersomnia


Selected Publications coming soon...