Meet Our Providers

Chief Medical Officer

Ching Wang, MD, FACP

Location: Internal Medicine, North Yuma
Specialty: Internal Medicine
Med School: Universidade 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
Preceptor: South University School of Nursing, Midwestern University
Joined Sunset August 1996

Associate Medical Director

Saika Somjee, MD

Location: Somerton Pediatric Clinic
Specialty: Pediatrics / Pediatric Hematology - Oncology
Med School: Seth G. S. Medical College, Mumbai, India, graduated June 1993
Residency: Louisiana State University Health Science Center Metaire, LA, completed training June 2007
Fellowship: Pediatric Hematology-Oncology, Louisiana State University Health Science, Metaire, LA, completed training June 2005
Certification: Board certified with the American Board of Pediatrics, 2007. Board certified with the American Sub-Board of Pediatric Hematology-Oncology, 2009
Preceptor: Northern Arizona University.
Academic Appointment- Director of Pediatrics Clinical Education Outpatient, YRMC Family Medicine Residency Program
Joined Sunset July 2007

Certified Nurse Midwife

Delia Montopoli, CNM, MSN, OGNP-C

Location: Sunset Women's Medical Group - Yuma and San Luis 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
Preceptor: Frontier Nursing University, Georgetown Nursing University, Midwestern University, Northern Arizona University, Maryville University
Joined Sunset March 1996

Elya Showalter, CNM, MSN

Location: Sunset Women’s Medical Group - Yuma and San Luis Clinics
Specialty: Certified Nurse Midwife
School: Frontier Nursing University, Hyden, KY, completed Master degree in November 2016
Certification: Board certified with American Midwifery Certification Board, 2016
Joined Sunset September 2017

Amanda Bujaucius, CNM, MSN

Location: Sunset Women’s Medical Group - Yuma and San Luis Clinics
Specialty: Certified Nurse Midwife
School: Frontier Nursing University, Hyden, KY, completed Master degree in December 2016
Certification: Board certified with American Midwifery Certification Board, 2017
Joined Sunset November 2017

Family Medicine

Sathya Vemuri, MD

Location: Yuma North Clinic
Specialty: Family Medicine
Med School: Gandhi Medical College, Hyderabad, India, graduated January 1996
Residency: St Joseph Hospital and Medical Center, Paterson, NJ, completed training June 2002
Certification: Board certified with the American Board of Family Medicine, 2002, re-certified in 2009
Joined Sunset August 2002

Pamela Sharp, FNP-BC

Location: Somerton Clinic - Extended Hours
Specialty: Family Nurse Practitioner
School: Regis University, Denver, CO, graduated May 2014
Certification: Board certified with American Nurses Credential Center, 2014
Joined Sunset September 2014

Richard A. Scott , FNP-C, DC

Location: Wellton Clinic
Specialty: Family Nurse Practitioner
School: Maryville University, St. Louis, MO, graduated August 2015
Certification: Board certified with the American Academy of Nurse Practitioners, 2015
Joined Sunset November 2015

Thomas Culwell, PA-C

Location: Main Yuma Clinic
Specialty: Physician Assistant
School: Midwestern University, Glendale, AZ, graduated August 2011
Certification: Board certified with the National Commission on Certification of Physician Assistant, 2011
Joined Sunset October 2016

Temika Sutton, MSN, FNP-C

Location: San Luis Clinic
Specialty: Family Nurse Practitioner
School: Olivet Nazarene University, Bourbonnais, IL, graduated in June 2015
Certification: Board certified with the American Academy of Nurse Practitioners, 2015
Joined Sunset March 2017

Jose L. Vega III, MD

Location: North Yuma Clinic
Specialty: Family Medicine
Med School: Universidad Autonoma de Guadalajara School of Medicine, Guadalajara, Mexico, graduated August 2011
Residency: Yuma Regional Medical Center, Yuma, AZ, completed training July 2017
Certification: Board Eligible
Joined Sunset October 2017

Fartun A. Jama, PA-C

Location: San Luis Clinic
Specialty: Physician Assistant / Family Medicine
School: A.T. Still University, Mesa, AZ, graduated August 2017
Certification: Board Certified with the National Commission on Certification of Physician Assistant, 2017
Joined Sunset December 2017

David E. Hanks, PA-C

Location: Somerton Clinic
Specialty: Physician Assistant / Family Medicine
School: A.T. Still University, Mesa, AZ, graduated August 2018.
Certification: Board certified with the National Commission on Certification of Physician Assistant, 2018.
Joined Sunset October 2018

General Dentistry

Satish Kumar, DDS

Location: Somerton Dental Clinic
Specialty: General Dentistry
Dental School: Government Dental College and Hospital, Amristar, India, graduated April 1979
Joined Sunset March 1993

Miriam Gonzalez, DMD

Location: San Luis Dental Clinic
Specialty: General Dentistry
Dental School: Midwestern University College of Dental Medicine, Glendale, AZ, graduated June 2016
Joined Sunset August 2016

Geoffery K. Lines, DMD

Location: San Luis Dental Clinic
Specialty: General Dentistry
Dental School: Midwestern University College of Dental Medicine, Glendale, AZ, graduated June 2017
Joined Sunset July 2017

Debbie Grund

Debbie Grund, RDH

Location: Somerton Dental Clinic
Specialty: Dental Hygienist
Dental School: Portland Community College, Portland, OR, graduated June 1987
Joined Sunset March 2017

Internal Medicine

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
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

Ana Marie Rivera, MSN, FNP-C

Location: Yuma Internal Medicine Clinic
Specialty: Family Nurse Practitioner
School: University of Arizona, Tucson, AZ, graduated 2004
Certification: Board certified with the American Academy of Nurse Practitioner, 2004
Joined Sunset December 2013

Irene A. Bird, DNP, FNP-C

Location: North Yuma Clinic
Specialty: Family Nurse Practitioner
School: University of Arizona, Tucson, AZ, Doctor of Nursing Practice, graduated August 2018, and Masters of Science, graduated May 2013
Certification: Board certified with the American Academy of Nurse practitioners, 2013
Joined Sunset November 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

Obstetrics and Gynecology

Terry A. Lewis, MD, FACOG

Location: Sunset Women’s Medical Group - Yuma Clinic
Specialty: Obstetrics and Gynecology
Med School: University of New Mexico, Albuquerque, NM, graduated 1974
Certification: Board certified with the American Board of Obstetrics and Gynecology, 1981
Residency: Naval Regional Medical Center, Oakland, California, 1978
Joined Sunset February 2014

Angel R. Temponi Zabala, MD

Location: Sunset Women’s Medical Group - Yuma and San Luis Clinic
Specialty: Obstetrics and Gynecology
Med School: La Universidad del Zulia School of Medicine, Maracaibo, Zulia, Venezuela, graduated December 2002.
Residency: Emory University School of Medicine, Atlanta, Georgia, graduated June 2014
Certification: Board Eligible
Preceptor: Walden University, Indiana State University, Grand Canyon University College of Nursing, Northern Arizona University
Joined Sunset July 2014

Pediatrics

Raymond Hatton, MD

Location: Yuma Pediatric Clinic
Specialty: Pediatrics
Med School: University of Louisville Medical School, Louisville, KY, graduated June 1970
Residency: Medical College of Ohio, Akron, OH, completed training December 1975
Certification: Board certified with the American Academy of Pediatrics, 1977, re-certified 2012
Joined Sunset August 1998

Ahmad Ashfaq, MD

Location: San Luis Pediatric Clinic
Specialty: Pediatrics
Med School: King Edward Medical College, Lahore, Punjab, Pakistan, graduated April 2006
Residency: Harlem Hospital Center, Columbia University Medical Center, New York, NY, completed training June 2013
Certification: Board certified with the American Board of Pediatrics, 2014
Preceptor: South University School of Nursing
Joined Sunset September 2013

Mwela N. Asombang, MD

Location: Yuma Pediatric Clinic
Specialty: Pediatrics
Med School: Kasturba Medical College, Karnataka, India, graduated March 2005
Residency: Cardinal Glennon Children’s Medical Center, Saint Louis University School of Medicine, St. Louis, Missouri, completed training June 2013
Certification: Board certified with the American Board of Pediatrics, 2014
Joined Sunset September 2013

Adil I. Baig, MD

Location: North Yuma Clinic
Specialty: Pediatrics
Med School: King Edward Medical University, Lahore, Pakistan, graduated April 2008
Residency: Metropolitan Hospital Center, New York Medical College, New York, NY, completed training June 2016
Certification: Board certified with the American Board of Pediatrics, 2017
Joined Sunset August 2016

Jay Kumar, MD

Location: Yuma Pediatric Clinic
Specialty: Pediatrics
Med School: Liaquat University of Medical and Health Sciences, Jamshoro, Pakistan, graduated February 2006
Residency: Metropolitan Hospital Center, New York Medical College, New York, NY, completed training June 2016
Certification: Board certified with the American Board of Pediatrics, 2017
Joined Sunset August 2016

Mohamed Nagiub, MD

Location: North Yuma Clinic
Specialty: Pediatrics / Pediatric Cardiology
Med School: University of Alexandria, Alexandria, Egypt, graduated October 2000
Residency: St. John Providence Children Hospital, Detroit, MI, completed training August 2013
Fellowship: Richmond Children Hospital at VCU, Richmond, VA, completed training August 2016
Certification: Board certified with the American Board of Pediatrics, 2013. Board certified with the American Board of Pediatrics Cardiology, 2016
Joined Sunset September 2016

Fnu Pardeep, MD

Location: San Luis Pediatric Clinic
Specialty: Pediatrics
Med School: Dow Medical College, Karachi, Pakistan, graduated April 2009.
Residency: Harlem Hospital Center, Columbia University Medical Center, New York, NY, completed training June 2017.
Certification: Board certified with the American Board of Pediatrics, 2017
Joined Sunset August 2017

Amy C. Wise, C-PNP

Location: School-based Clinics
Specialty: Pediatric Nurse Practitioner
School: Vanderbilt University, Nashville, TN, graduated July 2016
Certification: Pediatric Nursing Certification Board, 2016
Joined Sunset December 2016

Behavioral Health

Keli A. Osborn

Keli A. Osborn, LMSW

Location: North Yuma Clinic
Specialty: Behavioral Health Provider
School: University of Michigan, Ann Arbor MI, graduated August 2014
Certification: State of Arizona Board of Behavioral Health, 2015
Joined Sunset August 2015

Judith Gomez

Judith Gomez, LAC

Location: San Luis Clinic
Specialty: Licensed Associate Counselor
School: Northern Arizona University, Yuma AZ, graduated December 2011
Certification: State of Arizona Board of Behavioral Health, 2017
Joined Sunset November 2015

Cynthia Rivas

Cynthya Rivas

Location: North Yuma Clinic
Specialty: Behavioral Health Technician
School: Northern Arizona University, Yuma AZ, graduated August 2007
Joined Sunset November 2015

Karen Valencia

Location: North Yuma Clinic
Specialty: Behavioral Health Technician
School: Northern Arizona University, Yuma, AZ, graduated May 2017
Joined Sunset January 2018