Our Physicians

Our primay purpose is to provide you with the highest quality Obstetric, Gynecology, and Gynecologic Oncology care in a pleasant surrounding with courtesy and an understanding staff. Our success can be measured only by your satisfaction with the healthcare you receive.


Carlos Mohamed, M.D., F.A.C.O.G.cross

  • Bachelor of Science Degree at Instituto Regiomontano Nuevo Leon

  • Medical Degree at Universidad Autónoma de Nuevo Leon

  • Residency at University of Maryland Hospital, Baltimore Maryland

  • Private practice since 1984

  • Fellowship in Gynecologic Oncology

Jim Garza, M.D., F.A.C.O.G.
  • Graduate of Edinburg High School

  • Bachelor's Degree in Biology at Texas A&M University

  • Medical Degree at University of Texas

  • Residency in OB/GYN Scott & White Hospital, Temple, Texas

  • Private practice since 1989


Ayda Garza Montalvo, M.D., F.A.C.O.G.

  • Graduate of Harlingen High School

  • Bachelor’s Degree in Biology at Yale University

  • Medical Degree at UT Southwestern Medical School in Dallas Texas

  • Residency in OB/GYN at Parkland Memorial Hospital/UT Southwestern at Dallas Texas

  • Private practice since 1995

  • Fellow of the American College of Obstetricians and Gynecologists

R. Marcy Guerra, M.D., F.A.C.O.G

  • Bachelor of Arts, Biology at Rice University

  • Medical Degree at Texas A&M University Health Science Center College of Medicine

  • Residency in OB/GYN at Scott and White Memorial Hospital, Texas A&M University Health Science Center College of Medicine

  • Private practice since 2000.

  • Fellow of the American College of Obstetricians and Gynecologists.

  • Married to Albert Lopez


Kimberly A. Gonzalez, PA-C

  • Bachelor of Science Degree at Iowa State University

  • Physician Assistant Studies Degree at the University of Texas Pan American

  • Rio Grande Valley resident since 1999

  • Private practice since 2007


Deyanira Lopez, PA-C

  • Bachelor of Physician Assistant Studies at University of Texas Medical Branch in Galveston, Texas
  • Born & raised in the Rio Grande Valley. Resides in Rio Grande City, Texas.
  • Private practice since 2010.




Permanent Birth Control



Night Clinic

Tuesday 6 - 9 PM

Routine Obstetrics
Family Planning
4D Ultrasound
Well Women Annual Exam
and More

5115 S. McColl Rd
Edinburg, Tx. 78539




5115 South McColl Rd.
Edinburg, Tx. 78539


Rio Grande City

5326 E. US Hwy. 83,
Ste. A-5
Rio Grance City, TX 78582
Ph:(956) 488-8820


Renaissance Women's
Healthcare, P.A.
Preferred Hospital is


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