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The Gulf Coast Urology team has been serving the Houston area since 1987. Gulf Coast Urology’s main focus is our patient’s well-being. The field of Urology is constantly evolving, therefore our doctors keep up to date on the latest surgical and pharmacological treatments.

Hospital Affiliations:

  • St. Joseph Medical Center (Downtown) Houston, Texas
  • St. Joseph Medical Center (Heights) Houston, Texas
  • Houston Methodist St. John Hospital, Clear Lake, Texas
  • Memorial Herman Hospital, Houston, Texas


drjohnbertiniJohn E. Bertini, Jr., MD, FACS

Dr. Bertini is a board certified urologist who started practicing in 1987. Just prior to establishing his practice, he completed his urology residence at the University of Texas Medical School at Houston where he also completed his medical school education, and now holds a faculty position in the Department of Surgery, Division of Urology.

His practice is primarily based in downtown Houston, but he also sees patients at The Institute for Rehabilitation & Research in the Texas Medical Center as well at Gulf Coast Urology’s Clear Lake office and once a month in Baytown.

Dr. Bertini is also active in training urology residents and medical students, holding a teaching appointment at the University of Texas Medical Branch in Galveston. He currently holds medical leadership positions on a hospital’s board of directors and a large multi-specialty independent practice association.

Away from medicine, Dr. Bertini holds leadership positions on two nonprofit organizations boards, one dealing with rail transportation and the other on women’s artist initiatives.

drrohitdhirRohit Dhir, MD

Dr. R. Robert Dhir is a board-certified urological surgeon whose practice serves patients in downtown Houston as well as the Clear Lake/Webster/League City area. He earned his undergraduate and medical degrees from Georgetown University and was awarded honors in pre-medical studies, urology, orthopedics, and ophthalmology during tenure in Washington, DC.

Dr. Dhir served as chief resident during his urological surgical residency at University of Texas at Houston/MD Anderson Cancer Center, in addition to completing his internship in general surgery. He continues to train surgical residents at the downtown campus and at The Institute for Rehabilitation and Research (TIRR).

With nearly 10 years of clinical medicine experience, Dr. Dhir’s expertise includes stone disease, BPH, urological cancers (kidney, bladder, prostate), and Men’s Health (infertility, erectile dysfunction, low testosterone).

James M. Harris, MD

Dr. Harris is a board certified urologist, starting practice in 1989, first practicing in Beaumont, Texas and later joining Gulf Coast Urology in 1993. Originally from Dayton, Texas approximately 35 miles southeast of Houston, Dr. Harris attended the University of Texas at Austin and The University of Texas Southwestern Medical School at Dallas. He completed his urological training at The University of Colorado School of Medicine in Denver, Colorado. He is on the clinical teaching faculty of the University of Texas Medical School at Houston, Department of Surgery, Division of Urology.

Dr. Harris’ primary office is located in downtown Houston. He also sees and treats patient at The Institute for Rehabilitation and Research (TIRR) in the Texas Medical Center as well Baytown and Clear Lake, Texas.

Dr. Harris actively involved in the teaching and training of urological residents from the University of Texas Medical School at Houston. He is active in medical leadership at St. Joseph Medical Center as a member of the Medical Staff Executive Committee, Chairman of the Department of Surgery and Department of Urology.

He has over 25 years of experience in surgical management cancer of the urological system to include kidney, bladder, prostate, testicle, treatment of urological stone disease, treatment of male incontinence following treatment of prostate cancer, impotence, medical and surgical management of prostatic obstruction, female incontinence and voiding dysfunction.

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Gulf Coast Urology

1315 St. Joseph Parkway, Suite 1501

Houston, Texas 77002



Erectile Dysfunction Treatment

Elevated Prostatic Specific Antigen (PSA)

Ureteroscopy with Laser Lithotripsy

2020 Nasa Parkway, Suite 250

Nassau Bay, Texas 77058



Stress Urinary Incontinence

Testosterone Replacement Therapy (TRT)

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