Meet The Team

Tony Mills, MD
Medical Director, Anthony Mills MD Inc.
Assistant Professor of Clinical Medicine, UCLA
Editorial Advisory Board, Muscle & Fitness Magazine

A leading clinician in the fields of Men’s Health and HIV disease, Dr. Mills serves as the primary care provider for over 2,000 patients, including approximately 1,000 living with HIV. Dr. Mills received both his undergraduate and medical degrees from Duke University. He completed an internship in Internal Medicine, a residency in Anesthesiology and a fellowship in Cardiovascular Anesthesiology, all at the University of California, San Francisco. Dr. Mills is a member of many professional societies including the Infectious Disease Society of American, HIV Medical Association, International AIDS Society, IAS-USA, and the American Academy of HIV Medicine.

Joseph T. DeFoto, MD

Dr. DeFoto graduated medical school in 1989 and practiced for 5 years as a board-certified family practitioner in New York. After moving to Los Angeles in 1998, he worked for the Gay and Lesbian Center’s Primary Care and HIV Practice (Lambda Medical Group) for 5 years. Before joining Anthony Mills, MD in 2008, Dr. DeFoto worked with Tower Infectious Disease. Dr. DeFoto got into the field of medicine because he wanted to work in a profession that made him feel like he did something good for people. The ability to help people while performing a job he loves is something that Dr. DeFoto considers to be a tremendous gift.

Myles Spar, MD, MPH

After graduating from Tufts University and completing a year of research at Harvard Medical Center, Dr. Spar enrolled at the University of Michigan Medical School, where he graduated in 1993. He completed his residency in Internal Medicine at Tulane University, then pursued a fellowship in Health Services at UCLA while earning a Master’s in Public Health. Board certified in Internal Medicine and Anti-Aging medicine. Dr. Spar has worked as a humanitarian with Doctors without Borders and utilizes his broad experiences to bring a new perspective to his work as a physician. With a strong commitment to improving access among all populations, Dr. Spar views his role as a partner to his patients in order to help them achieve and maintain optimal health and invest in their own well-being.

Michael Seibert, MD

Michael Seibert is a detail-oriented and compassionate internist. He obtained his medical degree from the State University of New York, Downstate Medical Center. He completed his residency in internal medicine and his internship at the University of California, Los Angeles. In addition to serving his patients, he is an Assistant Clinical Professor at the University of California, Los Angeles. He has received the prestigious Jennifer Timbrook Memorial Award. Dr. Seibert is deeply committed to the well-being of his patients. He takes a thorough and precise approach to his consultations to ensure that he is consistently giving accurate diagnoses.


Peter Anderson, NP
Sub-Investigator, Anthony Mills MD Inc.

Working at Tony Mills, MD since 2006, Peter likes being a part of an office that patients feel proud of and want to come to. As a licensed nurse practitioner and sub-investigator, Peter enjoys the relationships he has with patients in helping them navigate the healthcare system and their health problems to achieve a higher state of well-being. Peter has extensive experience working in healthcare through a variety of nursing positions and has served as sub-investigator or coordinator on several studies prior to joining the Tony Mills, MD team.

Ronald Knight, CCRP
Research Operations Director

Working in clinical research since 1997, Ron started his career in research as clinical study coordinator. Ron’s love of helping people in need is what initially drew him to the field of research. Utilizing the science of medication, Ron believes he can help make a difference in the lives of many people and enjoys working in a career that allows him do so. Ron has been with the Tony Mills, MD team since 2006 and currently serves as Research Operations Director. He holds several research certifications, including a California State Certification in Phlebotomy and Certification in Investigator Training for Medical Research. Additionally, Ron is a Certified Clinical Research Professional (CCRP) and certified by ACRP as a Clinical Research Coordinator.

Jeff Angeli
Regulatory Manager

Jeff has been working in clinical research since he was an undergraduate. Since his college days, Jeff has been involved in a wide spectrum of research and therapeutic areas, including everything from lab research to clinical research (treatment and prevention), Sports Medicine to Men’s Health, regulatory and more. With the rise in serious health conditions, diseases and disorders, Jeff believes that there should also be a concentrated effort to increase knowledge, prevention and treatment of major health issues. This belief is what drew Jeff to the field of research as proactivity is essential to the advancement of medicine and living better lives.

Jeff Calzada
Clinical Research Coordinator

Jeff has always liked the notion of people helping people, which is what drew him to the medical field. With 17+ years of research experience, Jeff enjoys being part of an entity that is trying to make the world a healthier place to live.

Why Mills Research? “I have never come across an investigator like Dr. Mills—very dedicated and also very caring and fair to his staff and patients. This office is special because of the people I work with. We are a lot more than co-workers…we’re family.”

Find us online

Copyright © 2013 Tony Mills MD, Inc. All rights reserved.

Site designed by Hinc Media