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Our Faculty

Our faculty strives to live up to their reputation of being the most supportive and approachable, while teaching residents to treat a diverse, under-served patient population. We focus on training outstanding, balanced residents, in a hospital and outpatient environment dedicated to teamwork, community service, work/life balance and physician wellness.

For information on our faculty, email us:  [email protected]     


Amaity V. Austin, MD, MPH, FAAFP, ABoIM

Program Director

  • Dual board certified in Family Medicine and Integrative Medicine
  • Faculty Director of the Integrative Medicine Track and Department Chair of Family Medicine at CHMC
  • Committed to serving underserved patients in the community
  • 20+ years of teaching experience
  • Leads the community medicine curriculum
  • Interests: Community Medicine, Bioethics, Global Health, Integrative Medicine, traveling, photography, ethnic cuisine, music and yoga

Amaity V. Austin, MD, MPH, FAAFP, ABoIM

Program Director

  • Dual board certified in Family Medicine and Integrative Medicine
  • Faculty Director of the Integrative Medicine Track and Department Chair of Family Medicine at CHMC
  • Committed to serving underserved patients in the community
  • 20+ years of teaching experience
  • Leads the community medicine curriculum
  • Interests: Community Medicine, Bioethics, Global Health, Integrative Medicine, traveling, photography, ethnic cuisine, music and yoga


Dr. Juan Silva

Associate Program Director

  • Medical School: University of California, Davis School of Medicine
  • Residency: White Memorial Medical Center in Family Medicine
  • He is a Family Physician and Founder of Mosaic Family Care
  • Serves as core faculty member.
  • He serves on multiple leadership committees at White Memorial Medical Center, East LA College Foundation, and Monterey Park Hospital
  • He is a proud husband and father of 7 children and now a proud grandfather. He enjoys sporting events, and above all spending time with family and friends

Dr. Juan Silva

Associate Program Director

  • Medical School: University of California, Davis School of Medicine
  • Residency: White Memorial Medical Center in Family Medicine
  • He is a Family Physician and Founder of Mosaic Family Care
  • Serves as core faculty member.
  • He serves on multiple leadership committees at White Memorial Medical Center, East LA College Foundation, and Monterey Park Hospital
  • He is a proud husband and father of 7 children and now a proud grandfather. He enjoys sporting events, and above all spending time with family and friends


  • Medical School: David Geffen School of Medicine, UCLA
  • Residency:  White Memorial Med Center Family Medicine Residency
  • Serves as Didactics Director, preceptor outpatient faculty member, Nursing Home Attending
  • Interests include care of geriatric patient, preventive care & diabetes management
  • She’s received multiple teaching awards for teaching residents as a preceptor and lecturer.
  • On her spare time enjoys traveling & good food

  • Medical School: David Geffen School of Medicine, UCLA
  • Residency:  White Memorial Med Center Family Medicine Residency
  • Serves as Didactics Director, preceptor outpatient faculty member, Nursing Home Attending
  • Interests include care of geriatric patient, preventive care & diabetes management
  • She’s received multiple teaching awards for teaching residents as a preceptor and lecturer.
  • On her spare time enjoys traveling & good food


Dr. Hector Castillo

  • Primary care physician and hospitalist
  • Medical School: University of Southern California, Keck School of Medicine
  • Residency: White Memorial Medical Center
  • Serves as core faculty on the family medicine inpatient service;
  • Serves on multiple clinical leadership committees at White Memorial Medical Center and AltaMed Health Services
  • Husband and father of three wonderful children. He coaches flag football and enjoys time with his family.

Dr. Hector Castillo

  • Primary care physician and hospitalist
  • Medical School: University of Southern California, Keck School of Medicine
  • Residency: White Memorial Medical Center
  • Serves as core faculty on the family medicine inpatient service;
  • Serves on multiple clinical leadership committees at White Memorial Medical Center and AltaMed Health Services
  • Husband and father of three wonderful children. He coaches flag football and enjoys time with his family.


Dr. Michelle Crespo

  • Medical School: University of California Irvine School of Medicine where she participated in the Program in Medical Education for the Latino Community (PRIME-LC) program
  • MPH: University of California Los Angeles Fielding School of Public Health, focusing on health policy and management
  • Residency: CHMC – Family Medicine Residency
  • Core faculty member.  Her interests include full-spectrum family medicine, addressing healthcare disparities, and advocating for increased health access. 
  • For fun, she likes to watch NBA games, attempt CrossFit workouts, and take trips to Disneyland.

Dr. Michelle Crespo

  • Medical School: University of California Irvine School of Medicine where she participated in the Program in Medical Education for the Latino Community (PRIME-LC) program
  • MPH: University of California Los Angeles Fielding School of Public Health, focusing on health policy and management
  • Residency: CHMC – Family Medicine Residency
  • Core faculty member.  Her interests include full-spectrum family medicine, addressing healthcare disparities, and advocating for increased health access. 
  • For fun, she likes to watch NBA games, attempt CrossFit workouts, and take trips to Disneyland.


Dr. Richard Hernandez

Inpatient Director

  • Medical School: Ross University School of Medicine 
  • Residency: Arrowhead Regional Medical Center in Colton, CA
  • Serves as core faculty.  His interests include working in the inpatient and integrating Point of Care Ultrasound into clinical practice. 
  • On his spare time, Dr. Hernandez is an avid weightlifter and cook and enjoys spending time with his wife and their three children at Disneyland

Dr. Richard Hernandez

Inpatient Director

  • Medical School: Ross University School of Medicine 
  • Residency: Arrowhead Regional Medical Center in Colton, CA
  • Serves as core faculty.  His interests include working in the inpatient and integrating Point of Care Ultrasound into clinical practice. 
  • On his spare time, Dr. Hernandez is an avid weightlifter and cook and enjoys spending time with his wife and their three children at Disneyland


  • Medical School: Saint Louis University
  • Residency: UCLA Santa Monica, Chief Resident FMRP
  • Serves as core faculty full spectrum practice 
  • She’s dedicated to teaching obstetrics and reproductive health, office procedures, and medical education.
  • In her free time, enjoys volleyball, cooking, and running

  • Medical School: Saint Louis University
  • Residency: UCLA Santa Monica, Chief Resident FMRP
  • Serves as core faculty full spectrum practice 
  • She’s dedicated to teaching obstetrics and reproductive health, office procedures, and medical education.
  • In her free time, enjoys volleyball, cooking, and running


Clinical Medical Director

  • Medical School:  Kirksville College of Osteopathic Medicine
  • Residency: California Hospital Family Medicine Residency Program
  • Serves as Clinical Medical Director of the Eisner Health Family Medicine Center, an FQHC & continuity site for CHMC-FMRP
  • She’s boarded in Family Medicine, Adolescent Medicine and majority of her medical career in graduate medical education and practice in full-scope medicine with underserved populations
  • Free time: Reading, music, exercise and time with her family

Clinical Medical Director

  • Medical School:  Kirksville College of Osteopathic Medicine
  • Residency: California Hospital Family Medicine Residency Program
  • Serves as Clinical Medical Director of the Eisner Health Family Medicine Center, an FQHC & continuity site for CHMC-FMRP
  • She’s boarded in Family Medicine, Adolescent Medicine and majority of her medical career in graduate medical education and practice in full-scope medicine with underserved populations
  • Free time: Reading, music, exercise and time with her family


Dr. Anthony Zamudio

Director of Behavioral Science

  • Education: Ph.D. in clinical psychology from UCLA
  • Provides teaching and supervision in behavioral health and resident wellness
  • Multiple journal case study publications on patient encounters in primary care
  • Member for the LACPA Ethics Committee and a former ethics member of the California Psychological Association
  • He is an avid cyclist, having completed over twenty-one 7-day 550 mile AidsLifeCycle rides from San Francisco to Los Angeles

Dr. Anthony Zamudio

Director of Behavioral Science

  • Education: Ph.D. in clinical psychology from UCLA
  • Provides teaching and supervision in behavioral health and resident wellness
  • Multiple journal case study publications on patient encounters in primary care
  • Member for the LACPA Ethics Committee and a former ethics member of the California Psychological Association
  • He is an avid cyclist, having completed over twenty-one 7-day 550 mile AidsLifeCycle rides from San Francisco to Los Angeles

Learn more about Family Medicine Residency