Dr. Onix Joel Cantres-Fonseca MD Pulmonologist

Dr. Onix Cantres-Fonseca is a pulmonologist in Toa Baja, Puerto Rico and is affiliated with Veterans Affairs Caribbean Healthcare System. He received his medical degree from University of Puerto Rico School of Medicine and has been in practice for 8 years. He is one of 3 doctors at Veterans Affairs Caribbean Healthcare System who specialize in Pulmonary Disease.

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Office Location

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Specialty & Clinical Interests

Pulmonologist: General Pulmonary Medicine

Education & Medical Training

University of Puerto Rico
Residency, Internal Medicine, 2006–2009

University of Puerto Rico School of Medicine
Class of 2006

Certifications & Licensure

American Board of Internal Medicine
Certified in Internal Medicine

American Board of Internal Medicine
Certified in Pulmonary Disease

PR State Medical License
Active through 2013

Publications & Presentations

Nitric oxide is involved in the response of the isolated intact and epithelium-denuded rat trachea to the β₂ adrenergic receptor agonist salbutamol.
Montalvo, F., Cantres-Fonseca, O., Santos, G., Vega, M., Torres, I., Carmona, J., Dexter, D., Santacana, G.


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