Fellow of American College of Chest Physician

Dr. Vallejo’s special interest include diagnosis and treatment of pleural disease, early diagnosis of pulmonary malignancy with specialized training in the use of ultrasound and endobronchial ultrasound bronchoscopy. Also related sleep disorders including obstructive sleep apnea.


Internal Medicine, Board Certified, completed at UMass
Worcester, Massachusetts


Pulmonary Medicine
Board Certified completed at UMass – Worcester, Massachusetts- Sleep Medicine – Board Certified

Critical Care Medicine
Board Certified completed at UMass – Worcester, Massachusetts- Sleep Medicine – Board Certified


Medical School Universidad Autonoma de Tamaulipas

School of Medicine. Tampico Tamaulipas, Mexico Average: 94.4/100

Medical Residency

Maryland General Hospital, Baltimore. Maryland
Resident Internal Medicine

July 2003-2004

UMass Memorial Medical Center, Worcester, MA.
Resident Internal Medicine (Board Certified)

July 2004-2006


Pulmonary and Critical Care fellowship
UMass Memorial Medical Center, Worcester, MA.

July 2006-2009


Professional licensure 2002

Title and registration to practice Medicine in Mexico.

ECFMG certification 2003

Texas Medical license. 2009

Honors and Awards

June 2000

Certificate of Participation of clinical experience in the joint Baylor College of Medicine/ the Methodist Hospital, Universidad Autonoma de Tamaulipas exchange program.

June 2002

Graduated with honors from Medical School. Highest score of the class

Society Memberships


Chanin K , Vallejo-Manzur F, Sternbach GL, Fromm RE, Varon J

Pulmonary Manifestations of Rheumatoid Arthritis. Hosp Physician 2001;37:23-28

Vallejo-Manzur F, Varon J, Fromm RE, Baskett P

“Moritz Schiff and the history of open-chest cardiac massage” Resuscitation 2002;53:3-5

Varon J, Fromm RE, Vallejo-Manzur F.

“Advanced Cardiac Life Support Algorithms: Changes and Current American Heart Association Recommendations” Hosp Physician 2002;38:35-46

Vallejo-Manzur F. Perkins Y, Varon J, Baskett P.

“Andreas Vesalius, the concept of artificial airway” Resuscitation 2003;56:3-7

DeGorordo A, Chanin K, Vallejo-Manzur F. Varon J.

“Diving Emergencies” Resuscitation 2003; 59: 171-80.

Vallejo-Manzur F. Mireles-Cabodevila E, Anthony W, Varon J.

“Purple Urinee Urine Bag Syndrome Case Report” The American Journal of Emergency Medicine 2005; 23:521-524

"Manual of Intensive Care Medicine” – Fifth Edition By Richard S. Irwin, MD and James M. Rippe, MD (Editors) June 2009

Vallejo-Manzur F, Wilson M: Chapters: Acute inhalation and bioterrorism in the intensive care unit