1840 Mease Drive, Suite 300
Safety Harbor, Florida 34695 USA
(727) 785-6011

A Tradition of Excellence

The physicians of Advanced Urology Institute in Safety Harbor, FL are recognized locally for their medical expertise and hold key positions in the urological community at both the state and national level. Leadership is a core value of our practice and an honor met with dedication, integrity and commitment. Through innovation and collaboration our practice continues to be recognized for providing leading-edge urology and patient-centered care.

Meet Our Safety Harbor, FL Urologists

Dr. Chad Hubsher

Chad Hubsher, M.D.

Board Certified Urologist

Dr. Chad Hubsher is a board certified urologist practicing in Dunedin, Florida. He completed his surgical and urology training from West Virginia University in 2015. He is licensed by the State of Florida and West Virginia.


Lonnie Klein, M.D.

Board Certified Urologist

Dr. Klein also has a special interest in robotic surgery and neuromodulation for bladder control. He also is trained in High Intensity Focused Ultrasound (HIFU) for treatment of prostate cancer and has a special interest in robotic surgery.


Martin Richman, M.D.

Board Certified Urologist

Dr. Martin Richman also has a special interest in Laser and minimally invasive treatment of prostate enlargement/BPH (Holmium laser enucleation of the prostate (HoLEP), Holmium laser vaporization of the prostate (HoLAP) & Rezum.


Paulas M. Vyas, M.D.

Board Certified Urologist

Dr. Vyas has completed his urological residency at the UF Health & Shands Hospital, the North Florida/Georgia VA Medical Affairs Hospital, the Nemours Children’s Health System, and the Wolfson’s Children’s Hospital.


J. Mark Zachary, M.D.

Board Certified Urologist

Dr. J. Mark Zachary has multiple journal publications and academic presentations and has been a principal investigator and sub-investigator for numerous pharmaceutical drug studies involving prostate cancer, enlarged prostate, and erectile dysfunction.

Samuel Watson - Nurse Practitioner

Samuel Watson, DNP, ARNP, NP-C

Board Certified Nurse Practitioner

Sam Watson is a Board Certified Nurse Practitioner, credentialed by the American Academy of Nurse Practitioners. He sees his patients at Safety Harbor and Trinity Oaks.

The Best Medical Care Possible
Dr. Mark Zachary helped to save my life. Through his advice, I was able to cure a cancer in my prostate and that was over five years ago! As far as I am concerned Dr. Zachary is very knowledgeable and helpful to his patients – for real!! That is why I trust anything in urology to Dr. Zachary because I have a lot of confidence in his urological expertise! He is a rare find in the field of doctors – some of which only care about one thing – how much money can I make with this patient? He is not like that and really goes out of his way to make certain that anyone has the best medical care possible!
AUI Patient
May 1st, 2018
We Feel Very Confident With Him
Dr. Hubsher is one of the nicest Dr’s I have been to he has explains everything to myself and my wife he answers all our questions . he is also very pleasant . when i was in the hospital he stopped by on his way home just to see how i was doing. We feel very confident with him as my doctor.
AUI Patient
March 19th, 2016
An Excellent Doctor
In my 73 years, I have not has a doctor as compassionate, confident, and efficient as Dr. Lonnie Klein. I recommend him to my friends and others who have advised me that they have elevated PSA levels. Dr. Klein has treated me successfully as well as other members of my family. He is an excellent Doctor.
AUI Patient
January 15th, 2021