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Meet The Faculty

Urology program faculty at Mayo Clinic in Jacksonville, Florida.

Department of Urology faculty members at Mayo Clinic's campus in Jacksonville, Florida, subspecialize in all facets of urology.

From the department chair

Raymond Pak, M.D., M.B.A.I am humbled and privileged to serve as the chair of the Department of Urology. As a graduate of this training program, I am one example of many successful urology alumni.

Our department prides itself on producing quality, practicing community and academic urologists through our innovative mentorship model of training. Our excellent care providers, facilities, and research infrastructure allow for a broad patient-centered training experience that will prepare residents for the practice of their choice. Our commitment to producing the best trained Urologists is reflected not only through the Mayo Clinic culture, but also through our faculty recruitment and expansion, investment in technology, inclusion and diversity, and the growth and success of our residency, as well as our national ranking.

Mayo Clinic’s vision for the coming decade is: 'Bold. Forward.' Two words that describe our strategy to cure, connect, and transform health care. Driven by our values, we'll lead the transformation of health care. Our trainees play an integral part in this mission. Together we will put the needs of the patient first – today, tomorrow, and always.

Raymond Pak, M.D., M.B.A.
Chair, Department of Urology

From the program director

Timothy Lyon, MDMayo Clinic in Florida’s Urology Residency provides a rich learning environment for our trainees. We are a five year program that currently accepts 3 residents per year. Our integrated clinical practice, education, and research efforts are housed in state-of-the-art facilities and are guided by our primary value: ‘The needs of the patient come first.’

We utilize the mentorship model of training, where residents are matched 1:1 with faculty members for two-month rotations. This enables residents to participate in the entire spectrum of urologic care – from preoperative diagnosis and assessment, intraoperative decision-making and postoperative care – which maximizes continuity of care and provides early exposure to the operating room. Under our mentorship model, residents' progress is marked from rotation to rotation rather than from year to year, and skill acquisition is individually paced. With high case volumes and exposure to the entire breadth of urology, residents rapidly become proficient in robotic, open, laparoscopic, endourologic, prosthetic, and reconstructive surgery. Our Board passage rate is 100%.

Thank you for your interest in the Urology Residency at Mayo Clinic in Jacksonville, Florida. I hope you will consider joining our group of remarkable trainees and taking advantage of all that our program has to offer.

Timothy Lyon, M.D.
Program director

A collaborative atmosphere

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A collaborative atmosphere

The mentorship model

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The mentorship model

A passion for guiding patients

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A passion for guiding patients

The patient experience

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The patient experience

Program faculty 

In addition to caring for patients in their clinical practices, the department's faculty members are committed to teaching and facilitating the growth of medical knowledge. Many of our faculty members have published and lectured extensively and are well-regarded in their fields. You have direct access to these individuals throughout your time in the Urology Residency.

Elizabeth Bearrick, M.D.

Elizabeth Bearrick, M.D.

Senior Associate Consultant

Medical school: University of Minnesota Medical School

Residency: Urology, Mayo Clinic College of Medicine and Science, Rochester, MN

Interests:

  • Male urethral stricture disease
  • Ureteral stricture
  • Ureteropelvic junction obstruction
  • Male stress incontinence
  • Reconstruction of male external genitalia
  • Minimally invasive and robotic surgery

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Gregory Broderick, M.D.

Gregory Broderick, M.D.

Professor of Urology

Medical school: University of California, San Francisco, CA

Residency: General Surgery and Urology, University of California, San Francisco, CA

Fellowship: Neurourology and Impotence, University of California, Davis, CA

Interests:

  • Men's health with focus on erectile dysfunction (penile implants)
  • Peyronie's disease (reconstructive surgery)
  • Hyperplasia of the prostate (TURP and minimally invasive techniques)
  • Urinary incontinence (male sling and artificial sphincter)
  • Urethral strictures (evaluation and reconstruction of trauma)
  • Surgical stone management

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Chandler Dora, M.D.

Chandler Dora, M.D.

Assistant Professor of Urology

Medical school: University of Miami, Miami, FL

Residency: Urology, Mayo Clinic College of Medicine and Science, Rochester, MN

Interests: 

  • Benign Prostatic Enlargement
  • Kidney stones
  • Medical and surgical management of lower urinary tract symptoms
  • Elevated PSA

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Julio Gundian, M.D.

Julio Gundian, M.D.

Instructor in Urology

Medical school: Tulane College of Medicine, New Orleans, LA

Residency: Urology, Mayo Clinic College of Medicine and Science, Rochester, MN

Interests:

  • MR fusion for diagnosis of prostate cancer
  • Evaluation and workup of hematuria
  • Evaluation and treatment of benign prostatic hyperplasia
  • Evaluation of renal masses
  • Evaluation, diagnosis, and treatment of bladder cancer

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Todd Igel, M.D.

Todd Igel, M.D.

Associate Professor of Urology

Medical school: Creighton University School of Medicine, Omaha, NE

Residency: Urology, Mayo Clinic College of Medicine and Science, Rochester, MN

Interests:

  • Robotic prostatectomy
  • Laparoscopic urologic surgery
  • Urologic oncology (prostate cancer, nerve-sparing surgery, kidney cancer, bladder cancer)
  • Endourology
  • Urinary stone management
  • Benign prostatic hypertrophy, including minimally invasive BPH therapy (microwave and thermotherapy)
  • Pelvic lymph node dissection

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Dane Klett, M.D.

Dane Klett, M.D.

Senior Associate Consultant

Medical school: Creighton University School of Medicine

Residency: Urology, University of Utah

Interests:

  • Kidney stones
  • Benign prostatic enlargement
  • Medical and surgical management of lower urinary tract symptoms
  • Elevated PSA
  • Gross hematuria

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Timothy Lyon, M.D.

Timothy Lyon, M.D.
Program Director

Medical school: University of Kansas, Kansas City, KS

Residency: General surgery and Urology, University of Pittsburgh, Pittsburgh, PA

Fellowship: Urologic Oncology, Mayo Clinic College of Medicine and Science, Rochester, MN

Interests:

  • Robotic and open radical cystectomy for bladder cancer
  • Orthotopic neobladder reconstruction
  • Intravesical therapy for noninvasive bladder cancer
  • Surgical management of advanced renal cell carcinoma
  • Nephron-sparing partial nephrectomy
  • Retroperitoneal lymph node dissection for testicular cancer
  • Nerve-sparing robotic prostatectomy

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Erica Mercer, M.D.

Erica Mercer, M.D.

Assistant Professor of Urology, Nemours Children's Health Jacksonville

Medical school: University of Florida College of Medicine, Gainesville, FL

Residency: General Surgery and Urology, University of Florida College of Medicine, Gainesville, FL

Fellowship: Pediatric Urology, Emory University, Atlanta, GA

Interests:

  • Pediatric urology
  • Prenatal urology
  • Obstructive urology
  • Inguinal hernia and hydrocele
  • Vesicoureteral reflux

Preeya Mistry, M.D.

Preeya Mistry, M.D.

Pediatric Urologist, Nemours Children's Health, Jacksonville

Assistant Professor of Pediatric Urology

Medical school: Rutgers New Jersey Medical School, Newark, NJ

Residency: Urology, The Smith Institute for Urology, Zucker School of Medicine at Hofstra/Northwell, New Hyde Park, NY

Fellowship: Pediatric Urology, Johns Hopkins Hospital, Baltimore, MD

Interests:

  • Pediatric urology
  • Vesicoureteral reflux
  • Cryptochidism
  • Complex reconstruction

Raymond Pak, M.D., M.B.A.

Raymond Pak, M.D., M.B.A.

Department Chair

Medical school: University of Medicine and Dentistry of New Jersey, Newark, NJ

Residency: Urology, Mayo Clinic College of Medicine and Science, Jacksonville, FL

Fellowship: BARD Endourology/Robotics/Laparoscopy, Thomas Jefferson University Hospital, Philadelphia, PA

Interests:

  • Robotic surgery
  • Endoscopic surgery
  • Laparoscopic surgery
  • Laser surgery
  • Urologic cancers (prostate, kidney and bladder)
  • Kidney stone disease
  • Ureteral obstruction and malformations
  • BPH and male voiding dysfunction
  • Nerve-sparing robotic prostatectomy
  • Focal therapy for prostate cancer
  • MRI fusion prostate biopsy

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Ram Pathak, M.D.

Ram Pathak, M.D.

Senior Associate Consultant

Medical school: Drexel University College of Medicine
Residency: Mayo Clinic, Jacksonville, Florida
Fellowship: Wake Forest University School of Medicine

Interests:

  • Genitourinary oncology (prostate, kidney, bladder, UTUC)
  • Nerve-sparing robotic prostatectomy
  • Focal therapy for prostate cancer (cryotherapy, TULSA-PRO, HIFU)
  • MRI-fusion guided biopsy
  • Transperineal prostate biopsy

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Steven Petrou, M.D.

Steven Petrou, M.D.

Professor of Urology

Medical school: Vanderbilt University, Nashville, TN

Residency: Urology, University of Kentucky, Lexington, KY

Fellowship: Incontinence and Prosthetic Surgery, Mayo Clinic College of Medicine and Science, Rochester, MN

Interests:

  • Minimally invasive and surgical management of female and male incontinence
  • Redo of female incontinence procedures
  • Bladder fistulas
  • Management of failed bladder surgery
  • Artificial urinary sphincters
  • Urinary retention
  • Urethrolysis

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Andrew Stec, M.D.

Andrew Stec, M.D.

Chief of Urology, Nemours Children's Health Jacksonville
Chief of Pediatric Urology, Wolfson Children's Hospital
Associate Professor of Pediatric Urology

Medical school: Emory University, Atlanta, GA

Residency: Urology, Vanderbilt University, Nashville, TN

Fellowship: Pediatric Urology, Johns Hopkins Hospital, Baltimore, MD

Interests: 

  • Pediatric Urology
  • Complex reconstruction
  • Bladder exstrophy
  • Hypospadias
  • Prenatal Urology

David Thiel, M.D.

David Thiel, M.D.

Professor of Urology

Medical school: University of Cincinnati, Cincinnati, OH

Residency: Urology, Mayo Clinic College of Medicine and Science, Jacksonville, FL

Fellowship: Endourology, Robotics and Laparoscopy, University of Iowa, Iowa City, IA

Interests:

  • Laparoscopic and robotic surgery for malignant and benign urologic conditions
  • Complex kidney surgery (for tumors, stones, obstruction)
  • Prostate cancer
  • Robotic and laparoscopic reconstructive surgery

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Andrew Zganjar, M.D.

Andrew Zganjar, M.D.

Senior Associate Consultant

Medical school: Medical College of Wisconsin, Milwaukee, WI

Residency: University of Kansas Medical Center, Kansas City, KS

Fellowship: Urologic Oncology, Mayo Clinic College of Medicine and Science, Rochester, MN

Interests:

  • Robotic and open radical cystectomy for bladder cancer
  • Orthotopic neobladder reconstruction
  • Intravesical therapy for noninvasive bladder cancer
  • Nerve-sparing robotic prostatectomy
  • Surgical management of advanced renal cell carcinoma
  • Nephron-sparing partial nephrectomy
  • Retroperitoneal lymph node dissection for testicular cancer

View full profile

Advisers and mentors

The focus of urologic training at Mayo Clinic is in one-on-one mentoring by faculty.

Visiting professors

Prominent professors of adult and pediatric urology come to Mayo Clinic each year as visiting professors. They present their work during lectures and participate in conferences, surgery and hospital rounds. You are encouraged to take full advantage of these opportunities.

Visiting professors have included:

  • David Penson, M.D., M.P.H., Vanderbilt University
  • Brian Chapin, M.D., University of Texas, M.D. Anderson Cancer Center
  • David Kraebber, M.D., Wilmington Health Medical Center