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Harlingen Medical Center’s executive team is committed to affording patients excellent service and high-quality care in every visit. To realize this commitment, HMC partners with highly experienced and highly skilled physicians, nurses, staff and volunteers. With each and every patient, HMC collectively endeavors to provide comprehensive, quality healthcare in a convenient, compassionate and cost effective manner.

Harlingen Medical Center is known for creating unparalleled experiences for its patients from the moment they walk through its doors: a compassionate team of professionals, committed to affording you excellence in the service and care patients need to get and stay well.

The Harlingen Medical Center Executive Team

Candi Constantine-Castillo

Candi Constantine-Castillo

Chief Executive Officer

Harlingen Medical Center is proud to welcome their new Chief Executive Officer, Candi Constantine-Castillo. Candi Constantine-Castillo brings over thirty years of administrative and clinical operations experience to the facility and has served the Rio Grande Valley since 1998. She served as the System Chief Nursing Officer for South Texas Health System from March of 2008 until December of 2020. Prior to that she served as the hospital administrator for Dolly Vinsant Memorial Hospital. Most recently, she has served Cornell University as a facilitator and program lead for the post-graduate Executive Healthcare Leadership certificate program. Candi Constantine-Castillo holds numerous national board certifications and is a Fellow in the American College of Healthcare Executives. She earned her undergraduate nursing degrees from East Tennessee State University, a Master of Business Administration from Andrew Jackson University, a post-graduate certificate in Nursing Administration from the University of Texas-Arlington, Doctor of Health Administration with a specialization in Health Care Leadership from Capella University, and Doctor of Nursing Practice from Purdue University. Candi Constantine-Castillo is married to Lt. Carlos Castillo of the Harlingen Fire Department, a native of Harlingen. They have two children, Madison and Nia, and reside in Harlingen. The family enjoys traveling, hosting events and gatherings with family and friends, and animal rescue.

Michael Bergstrom portrait

Michael Bergstrom

Chief Financial Officer

Michael Bergstrom received a Bachelor of Business Administration-Finance from The University of Texas Pan-American in August 2000, and a Master of Science in Healthcare Administration with a Minor in Human Resource Management from Houston Baptist University in February 2005. He has been employed as a Financial Analyst/Staff Accountant, Senior Financial Analyst-Decisions Support, Director of Financial Operations-Ambulatory/Ancillary, and Assistant Chief Financial Officer by VBHS/Tenet Health Systems. Michael has served his community through Leadership Harlingen, Knapp Medical Center Volunteer, Weslaco Chamber of Commerce Volunteer, American Heart Association member and American Cancer Society Member.

Padmini Bhadriraju, MD

Padmini Bhadriraju, MD

Chief Medical Officer

A very distinguished physician, Dr. Padmini Bhadriraju, serves as the Chief Medical Officer at Harlingen Medical Center. Dr. Padmini is an board-certified internal medicine physician who has a passion for providing the highest quality of care to the community in the Rio Grande Valley. She is experienced at providing excellent management of chronic diseases for adult and senior patients. She is committed to helping patients, including seniors, in maximizing their potential to achieve a higher quality of life, through optimal healthcare services.

Dr. Padmini previously served as Chief Medical Officer and Hospitalist for Knapp Medical Center in Weslaco. She also serves as a Clinical Assistant Professor for the University of Texas Medical Branch at Galveston, and as the founder physician for Harmony Internal Medicine and Family Practice in Edinburg.

In addition, Dr. Padmini previously served as a Clinical Instructor at Michigan State University’s College of Human Medicine. She also served needy patients as a relieving physician at a United Nations Development Program clinic in Ghana, West Africa.

Dr. Padmini completed a Residency in Internal Medicine at McLaren Regional Medical Center in Flint, Michigan. She completed an internship and medical school at Andhra Medical College and King George Hospital in Visakhapatnam, India.

Governing Board

Administrative Representatives:

  • Candi Constantine-Castillo, CEO
  • Michael Bergstrom, CFO


  • Hugo Blake, MD
  • Juan Garza, MD
  • Timothy Bothwell, MD

Community Members:

  • Michael Rinaldi
  • Michelle Robinson
  • Lilian Kim