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Dr. Derrick Marinelli, MD

Urology

Fullerton, CA 92835-3638
4.0(4 ratings on Google)· synced 5/9/2026
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Name
Dr. Derrick Marinelli, MD
Specialty
Urology
Location
Fullerton, CA
Rating
4 / 5 (4 Google reviews)

Data source: NPPES NPI Registry · Google synced 5/9/2026

UROLOGY
MD
GROUP PRACTICE
FULLERTON, CA

About Dr. Marinelli

Dr. Derrick Marinelli, M.D. is a board-certified urologist practicing in Fullerton, California. He provides comprehensive urological care to patients throughout Orange County, addressing a wide range of conditions affecting the urinary tract and male reproductive system. His clinical approach emphasizes clear communication and evidence-based treatment options tailored to each patient's needs. Dr. Marinelli serves the Fullerton community with a commitment to accessible, high-quality urological care.

Patients see Dr. Derrick Marinelli for a range of urological concerns. Common conditions include Kidney Stones, Benign Prostatic Hyperplasia (BPH), Prostate Cancer, Bladder Cancer, Urinary Tract Infections, Urinary Incontinence, Overactive Bladder, Erectile Dysfunction, Hematuria, Hydronephrosis, Testicular Conditions, and Urethral Stricture. Many arrive after an initial workup from their primary care doctor, though self-referrals are also welcome.

Services at this practice include Cystoscopy, Transurethral Resection of the Prostate (TURP), Ureteroscopy, Shock Wave Lithotripsy, Prostate Biopsy, Vasectomy, Bladder Biopsy, Ureteral Stent Placement, and Robotic-Assisted Surgery. Dr. Derrick Marinelli reviews all available options with patients before any procedure is scheduled. The aim is to ensure each person understands their diagnosis and the reasoning behind recommended treatment.

Urology Services in Fullerton, CA

For patients in Fullerton, CA seeking urological care, a consultation with Dr. Derrick Marinelli is the starting point. The practice serves patients from across the Fullerton area. Office contact details are listed on this page.

Specialty Overview

Dr. Marinelli specializes in the diagnosis and treatment of urological conditions affecting both men and women, including kidney stones, bladder dysfunction, and prostate disease. He offers a broad range of surgical and non-surgical treatment options to address urinary tract concerns at every stage.

Conditions Treated

  • ✓ Kidney Stones
  • ✓ Benign Prostatic Hyperplasia (BPH)
  • ✓ Prostate Cancer
  • ✓ Bladder Cancer
  • ✓ Urinary Tract Infections
  • ✓ Urinary Incontinence
  • ✓ Overactive Bladder
  • ✓ Erectile Dysfunction
  • ✓ Hematuria
  • ✓ Hydronephrosis
  • ✓ Testicular Conditions
  • ✓ Urethral Stricture

Procedures

  • ✓ Cystoscopy
  • ✓ Transurethral Resection of the Prostate (TURP)
  • ✓ Ureteroscopy
  • ✓ Shock Wave Lithotripsy
  • ✓ Prostate Biopsy
  • ✓ Vasectomy
  • ✓ Bladder Biopsy
  • ✓ Ureteral Stent Placement
  • ✓ Robotic-Assisted Surgery

Frequently Asked Questions

What conditions does Dr. Marinelli treat?

Dr. Marinelli treats a wide range of urological conditions, including kidney stones, enlarged prostate, bladder infections, urinary incontinence, and prostate cancer. Patients with concerns about the urinary tract or male reproductive system are encouraged to schedule a consultation.

Does Dr. Marinelli offer minimally invasive procedures?

Yes, Dr. Marinelli provides minimally invasive treatment options for many urological conditions. These approaches are often associated with shorter recovery times and less discomfort compared to traditional open surgery. Ask his office which options may be appropriate for your specific situation.

How do I schedule an appointment with Dr. Marinelli in Fullerton?

You can contact Dr. Marinelli's office directly by phone or through an online scheduling platform. His practice serves patients throughout Fullerton and the surrounding Orange County area. Having your insurance information and a referral if required ready will help streamline the process.

Does Dr. Marinelli treat both men and women?

Yes, Dr. Marinelli provides urological care to both male and female patients. Conditions such as kidney stones, urinary tract infections, and bladder dysfunction affect people of all genders, and his practice addresses these concerns for a broad patient population.

What should I expect at my first urology appointment with Dr. Marinelli?

At your first visit, Dr. Marinelli will review your medical history and discuss your current symptoms in detail. He may order diagnostic tests such as urinalysis, imaging, or bloodwork to better understand your condition. From there, he will walk you through available treatment options and answer any questions you have.

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