The Urology Clinic of Winchester is pleased to assist our patients in the medical and surgical treatments of many urological disorders. We offer many treatment options and work closely with the patient in order to determine the best course of care for each individual situation.

Specific disease processes that we treat

  • BPH
  • Bladder Cancer
  • Bladder Control problems (Overactive Bladder)
  • Erectile dysfunction: medical and surgical management
  • Hematuria (blood in the urine)
  • Incontinence (leakage of urine)
  • Kidney Cancer
  • Kidney Stones
  • Male Infertility
  • Prostate Cancer
  • Testicle Cancer
  • Urethral Stricture disease

Office Based Procedures

  • Prostate Biopsy
  • Cystoscopy
  • Vasectomy
  • Urodynamics

Hospital Based Procedures

  • Circumcision
  • ESWL (shock wave lithotripsy)
  • Prostatectomy
  • Hand Assisted Laparoscopic Radical Nephrectomy
  • Holmium Laser cystolithopaxy (bladder stones)
  • Hydrocelectomy
  • Open Radical Nephrectomy
  • Orchiectomy
  • Percutaneous Nephrolithotomy
  • Pubovaginal Sling
  • Radical Prostatectomy (Removal of Prostate to treat Prostate cancer)
  • TURBT (Trans Urethral Resection of Bladder Tumor)
  • TURP (Trans Urethral Resection of Prostate)
  • Ureteroscopy with Holmium Laser
  • Varicocelectomy

Our Physicians

doctor profile

Michael A. Hoffman, M.D.

Dr. Hoffman completed research on numerous urology based projects prior to joining the Urology Clinic of Winchester in 2002. He completed his undergraduate studies at Muhlenberg College in Allentown, PA, where he played football and was twice named a GTE Academic All-American.


Urological Residency
Harvard Medical School, Brigham and Women’s Hospital 1995-2002

Medical School
Penn State University College of Medicine, Hershey, PA 1991-1995

Muhlenberg College, Allentown, Pennsylvania 1987-1991

Certifications & Memberships

American Board of Urology 2004, American Urological Association

doctor profile

Mark E. Levinson, M.D.

Dr. Levinson has been a member of the practice since 1998. He served as the Winchester Medical Center Chief of Urology from 2001 to 2003, and served as the President of the Surgi-Center of Winchester Medical Staff from 2006 to 2007.


Urological Residency
Pennsylvania State University, Hershey Medical Center, 1992-1998

Medical School
Jefferson Medical College, Philadelphia, PA 1988-1992

Case Western Reserve University, Cleveland, Ohio 1984-1988

Certifications & Memberships

American Board of Urology, American Urological Association, American Association of Clinical Urologists.

doctor profile

Thomas W. Oliver, M.D.

Dr. Oliver completed his undergraduate studies, medical school studies, and residency at Queen's University in Ontario, Canada. Dr. Oliver has served as the President of Medical Staff at the Winchester Medical Center and has been a member of the practice since 1990.


Urological Residency
Queen's University, Department of Urology, 1983-1988

Medical School
Queen's University, Kingston Ontario, Canada 1979-1983

Queen's University, Kingston, Ontario, Canada 1977-1979

Certifications & Memberships

American Board of Urology, American Urological Association, Virginia Urology Society, Fellow Royal College of Surgeons of Canada

doctor profile

John W. Warner, M.D.

Dr. Warner studied Public Policy and French at Duke University before attending The University of North Carolina at Chapel Hill. Within a 20 month span, Dr. Warner gave seven presentations to various universities and societies; one of these presentations resulted in Dr. Warner being awarded the 2001 Pfizer Prize in the History of Medicine.


Urological Residency
George Washington University School of Medicine, 1998-2004

Medical School
University of North Carolina at Chapel Hill, Chapel Hill, NC 1994-1998

Duke University, Durham, NC, 1989-1993

Certifications & Memberships

American Urological Association

doctor profile

Waleed A. Eisa, MD

An expert evaluating, diagnosing, and treating patients with both general and complex urological conditions, Dr. Eisa is the first Robotically trained Urologist to join the Urology Clinic. During his medical training, Dr. Eisa was published in several Urological academic journals. Dr. Eisa is fluent in Arabic.


Urological Residency
Geisinger Health Systems, Department of Urology, Danville, PA 6/2013-6/2018

Medical School
Northeast Ohio Medical University, Rootstown, OH, 2009-2013

George Mason University, BS Biomedical Science

Certifications & Memberships

Board Eligible, American Board of Urology, American Urological Association

doctor profile

Spencer Craven, MD

Dr. Craven completed his undergraduate studies at Stanford University before attending Baylor College of Medicine for medical school and residency. He performs all general urology services, but has a special interest in robotic surgery including robotic prostatectomy and robotic partial nephrectomy as well as prosthetics.


Urological Residency
Baylor College of Medicine 2015-2019

General Surgery Internship
Baylor College of Medicine 2014-2015

Doctor of Medicine
Baylor College of Medicine 2010-2014

Bachelor of Science
Stanford University 2006-2010

doctor profile

Michelle O. D’Alessio, P.A.

Michelle completed her Masters of Physicians Assistant Studies here in Winchester, VA at Shenandoah University, where she served as the President of the Class of 2006, before joining the practice in 2007. She volunteers with the American Red Cross and Comprehensive Community Action Program (CCAP) Adopt-a-Family programs.


Masters of Physicians Assistant Studies
Shenandoah University, Winchester, VA 2004-2006

University of Memphis, Memphis, TN 1999-2003

Certifications & Memberships

National Commission Certification of Physician Assistants, American Academy of Physician Assistants, Society of Urologic Nurses and Associates

doctor profile

Tara E. Holmes, N.P.

Tara completed her undergraduate studies at Vanderbilt University where she majored in biomedical engineering with a concentration in physiological modeling with a minor in mathematics. Tara joined the Urology Clinic of Winchester in 2014.


Masters of Science in Nursing
Vanderbilt University School of Nursing, Nashville, TN 1999-2000

Vanderbilt University, Nashville, TN 1996-1999

Certifications & Memberships

Virginia Nurse Practitioner, Virginia Authorization to Prescribe, Virginia RN, DEA License (Schedule II-IV)

doctor profile

Laura B. Minster, PA-C

Laura joined the practice in February of 2019 after spending the early part of her career as an Emergency Room Physician Assistant. Prior to enrolling in Shenandoah University’s Physician Assistant program, Laura worked as an EMT and Paramedic with area Rescue Squads.


Shenandoah University, Winchester, VA 2014-2016
University of Virginia, Charlottesville, VA 2003-2007

Certifications & Memberships

American Urological Association, Urological Association of Physician Assistants, and the American Academy of Physician Assistants

Patient Information

We accept the following forms of insurance including most Medicare and HMO products. If you have questions or are unsure if your insurance is accepted, please contact your insurance provider or call our office at 540-667-1712.

  • Medicare
  • Anthem BCBS
  • Anthem Healthkeepers Plus
  • Cigna
  • Aetna
  • Optima
  • Highmark BCBS
  • Tricare
  • United Healthcare
  • Humana Medicare

Patient Education

Click on the links below to download a full description of the procedures.

The providers at the Urology Clinic of Winchester recommend these links to patients who would like to learn more about common Urological Disorders.

Patient Portal

Through our patient portal, you are able to

You must register with patient portal before you are able to access these features, for registering please call our office (540) 667-1712, or click here.

Contact Us

Feel free to complete the form below if you have any questions, we will respond shortly.

For our patient's privacy and security, it is Urology Clinic of Winchester's policy to never send or receive patient information unless following HIPPA and HITECH Act guidelines. Please do not send requests for medical advice, treatment, or private patient health information utilizing this form. Requests of this nature should be made through our patient portal.


Monday:8am - 5pm
Tuesday:8am - 5pm
Wednesday:8am - 5pm
Thursday:8am - 5pm
Friday:8am - 5pm

1712 Amherst St., Winchester, VA 22601. View large map

To schedule an appointment, call us at