Make an Appointment

If you have any medical concerns, and would like to come and see Dr. Castellanos, please feel free to make an appointment with us via

…or fill in the the form on our Contact Us page:


Meet the Staff: Dr. Castellanos

Alexander F. Castellanos, M.D., is a graduate of Stanford University, School of Medicine.

Dr. Castellanos received his training at Stanford, USC, UCSF, Queens Square –London, England, and Mexico City.


Recent Posts

  • Summary Report Of Our Proactive Practice Facing Virus

    Non-invasive Bi-directional Doppler Analysis for Potential Early Detection of Severe COVID-19 Cases Jorge Gonzalez12, Alexander Castellanos MD5 Abstract: COVID-19, an infectious disease caused by a new virus, has been well known to cause respiratory illness and further research has been shown to cause symptoms related to multiple organ damage. This is due to the attack […]

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  • COVID-19: Abnormal Clotting Common in More Severe Disease

    Chinese clinicians on the early front lines argue for anticoagulation by Crystal Phend, Senior Editor, MedPage Today March 24, 2020 A computer rendering of a blood clot Endothelial damage and subsequent clotting is common in severe and critical COVID-19 coronavirus, which may have implications for treatment, Chinese clinicians said at a webinar co-sponsored by the […]

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Office Hours

If you are experiencing an emergency, please report to the ER. If you have a non-emergency feel free to visit a walk-in clinic, like Med Stop.
You may schedule a follow up with Dr. Castellanos on a workday.


NOTE: Thursdays are available for call only. Administrative personnel, not the doctor, will be available to answer your call.
* Retirement Statement