Faculty

These faculty and staff are dedicated to sharing their knowledge with our clinics as well as our communities and they can help you implement programs to address various health conditions.

To connect with one of the experts, please contact us today at echo@npaihb.org.

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Dr. Sophina Calderon

Dr. Sophina Calderon

Dr. Sophina Manheimer Calderon is Diné (Navajo) from Tuba City, Arizona and is a graduate of Dartmouth College. She obtained her medical degree at University of Rochester School of Medicine and Dentistry. She completed her residency at the University of ...read more
Dr. Aliza Machefsky

Dr. Aliza Machefsky

Aliza Machefsky, MD, is the Gilstrap fellow within the CDC's Division of STD Prevention. In this role, she provides subject matter expertise on congenital syphilis screening, diagnosis, treatment, and prevention. Aliza completed a residency in obstetrics and gynecology at St. ...read more
Dr. Holly Van Lew

Dr. Holly Van Lew

“I love having engaging conversations and thinking through challenging questions with the amazing clinical staff within ECHO. Having this group of experts at our fingertips is so reassuring.”

CAPT Holly Van Lew is clinical pharmacist with the Indian Health Service. She was the immunization coordinator at her medical center for 10 years, where she managed procurement, storage, and distribution of adult and childhood vaccines. She is a national ...read more