Internal Medicine Providers
Our highly experienced team of providers is focused on keeping you at your healthiest best
Ching Wang, MD, FACP
Location: Yuma Internal Medicine Clinic
Specialty: Internal Medicine
Med School: University Federal de Rio de Janeiro, Rio de Janeiro, Brazil, graduated December 1989
Residency: New York Methodist Hospital in Brooklyn, NY, completed training June 1995
Certification: Board certified with the American Board of Internal Medicine, 1996, re-certified in 2016
Mazhar Bajwa, FNP-BC
Location: Yuma Internal Medicine Clinic
Specialty: Family Nurse Practitioner
School: Mountain State University, Beckley, WV, graduated December 2012.
Certification: Board certified with the American Nurses Credentialing Center, 2015
Joined Sunset September 2018
Delia Montopoli, CNM, MSN, OGNP-C
Location: Yuma Internal Medicine Clinic
Specialty: Certified Nurse Midwife / Health Nurse Practitioner
School: University of Chile School of Medicine, Santiago, Chile, completed training 1976 University of Wyoming School of Nursing, Laramie, WY, completed Master degree 1995
Certification: Board certified with American Midwifery Certification Board, 1995 Board certified with the National Certification Corporation for the Obstetric, Gynecologic and Neonatal Nursing Specialties. Master Degree in Nursing Education, 1993
Joined Sunset March 1996
Specialty: Certified Nurse Midwife / Health Nurse Practitioner
School: University of Chile School of Medicine, Santiago, Chile, completed training 1976 University of Wyoming School of Nursing, Laramie, WY, completed Master degree 1995
Certification: Board certified with American Midwifery Certification Board, 1995 Board certified with the National Certification Corporation for the Obstetric, Gynecologic and Neonatal Nursing Specialties. Master Degree in Nursing Education, 1993
Joined Sunset March 1996
Efoui Abotsi-Kowu, MSN, AGPCNP
Location: Yuma Internal Medicine Clinic
Specialty: Adult Gerontology Nurse Practitioner
School: South University, Savannah, GA, graduated June 2018
Certification: Board certified with the American Academy of Nurse Practitioners, 2018
Joined Sunset October 2019
April Rojas, FNP-C
Location: Yuma Internal Medicine Clinic
Specialty: Family Nurse Practitioner
School: Northern Arizona University, Flagstaff, AZ, graduated May 2020
Certification: Board certified with the American Academy of Nurse Practitioners, 2020
Joined Sunset July 2020
Maju Lim, FNP-C
Location: North Yuma Internal Medicine Clinic
Specialty: Family Nurse Practitioner
School: Northern Arizona University, Flagstaff, AZ, graduated May 2023.
Certification: Board certified with the American Academy of Nurse Practitioners, 2023
Joined Sunset January 2024
Certification: Board certified with the American Academy of Nurse Practitioners, 2023
Joined Sunset January 2024
Maria Fereira-Carroz, MD
Location: Somerton Internal Medicine Clinic
Specialty: Internal Medicine
Med School: University of Zulia, Maracaibo, Venezuela, graduated December 2003
Residency: Morehouse School of Medicine, Atlanta, GA, completed training June 2014
Certification: Board certified with the American Board of Internal Medicine, 2014
Specialty: Internal Medicine
Med School: University of Zulia, Maracaibo, Venezuela, graduated December 2003
Residency: Morehouse School of Medicine, Atlanta, GA, completed training June 2014
Certification: Board certified with the American Board of Internal Medicine, 2014
Joined Sunset November 2014
Oliver Severino, MD
Location: San Luis Internal Medicine Clinic
Specialty: Internal Medicine
Med School: University of the Philippines, Manila, Philippines, graduated May 2000
Residency: The Jewish Hospital of Cincinnati, Cincinnati, OH, completed training June 2005
Certification: Board certified with the American Board of Internal Medicine, 2005, re-certified 2015
Joined Sunset August 2005
Specialty: Internal Medicine
Med School: University of the Philippines, Manila, Philippines, graduated May 2000
Residency: The Jewish Hospital of Cincinnati, Cincinnati, OH, completed training June 2005
Certification: Board certified with the American Board of Internal Medicine, 2005, re-certified 2015
Joined Sunset August 2005
Angeles Olivarez, PA-C
Location: San Luis Internal Medicine Clinic
Specialty: Physician Assistant
School: A.T. Still University, Mesa, AZ, graduated September 2022.
Certification: Board certified with the National Commission on Certification of Physician Assistants, 2022.
Joined Sunset December 2022
Specialty: Physician Assistant
School: A.T. Still University, Mesa, AZ, graduated September 2022.
Certification: Board certified with the National Commission on Certification of Physician Assistants, 2022.
Joined Sunset December 2022
Bryson Wandling, PA-C
Location: San Luis Internal Medicine Clinic
Specialty: Physician Assistant
Med School: Harding University, Searcy, AR, graduated December 2018
Certification: Board certified with the National Commission on Certification of Physician Assistants, 2019
Joined Sunset May 2020
Specialty: Physician Assistant
Med School: Harding University, Searcy, AR, graduated December 2018
Certification: Board certified with the National Commission on Certification of Physician Assistants, 2019
Joined Sunset May 2020