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Andrew Jason Cohen, M.D.

Photo of Dr. Andrew Jason Cohen, M.D.
  • Assistant Professor of Urology


Benign Prostatic Hyperplasia (BPH), Erectile Dysfunction, Genitourinary Reconstruction, Hidradenitis, Incontinence, Lower Urinary Tract Obstruction, Lower Urinary Tract Reconstruction, Male Sexual Dysfunction, Obesity Surgery, Penile Deformities, Peyronie's Disease, Phalloplasty, Reconstructive Surgery, Stress Incontinence, Trauma, Ureteral Pelvic Junction Obstruction, Urethral Diverticulum, Urethral Fistulas, Urethral Stricture, Urinary Incontinence, Urology more


Johns Hopkins Bayview Medical Center

4940 Eastern Avenue
Baltimore, MD 21224 map



  • Assistant Professor of Urology

Departments / Divisions



  • MD, University of Chicago Pritzker School of Medicine (2012)


  • University of Chicago Medicine Mitchell Hospital-Hyde Park / Urology (2018)


  • University of California San Francisco School of Medicine (2019)

Board Certifications

  • Pending/Scheduled / Urology

Additional Training

  • Medical Education Research, Innovation, Teaching and Scholarship Scholar, Director Dr. Vineet Arora, Dr. Nancy Schindler, University of Chicago, Chicago, IL (2016)
  • Summer Program in Outcomes Research Training Certificate, Instructors: David Meltze, Dr. Gary Steinberg, University of Chicago, Chicago, IL (2016)

Research & Publications


My research is inspired by my patients who present with benign urologic conditions of varied scope and high morbidity which are rarely the focus of active, ongoing clinical research. I have experience in survey creation, quality improvement projects, qualitative research, data set analysis, statistical methods and enjoy incorporating novel technology to help answer research questions. From 2015-2016 during my clinical training at the University of Chicago, I was selected as a Medical Education Research, Innovation, Teaching and Scholarship (MERITS) Scholar and enrolled in intensive coursework leading to a certificate in clinical outcomes research. This training has been formative in my research career and allowed me to be part of winning, productive research teams.

I have a wide array of published research, but I am currently exploring a specialized interest in antibiotic stewardship within Urology. I recently completed a project regarding how the native microbiome may affect urethral stricture disease. My prior work on computational fluid modeling has allowed for a unique understanding of urethral stricture pathophysiology. I have published a series of peer-reviewed works examining antibiotic use, complications, and the ideal timing for implantation surgery in male and female urologic patients. I helped to develop a novel surgical method for the transgender male seeking sexual function and a rating scale assessing the endoscopic appearance of kidneys among stone-formers. I have also examined the quality of urologic research itself as well as the urologic workforce.

I have extensive experience in mentoring post-graduate physicians and medical students. I am currently Assistant Professor of Urology and Director of Reconstructive Urologic Surgery at Johns Hopkins. Until recently, I was a Clinical Instructor at the University of California, San Francisco. In this capacity, I have helped mentor and pursue varied research with many clinical fellows, research fellows, residents, and students. I have been honored to have several residents inspired to pursue careers in reconstructive urology under my persuasion and others achieve first author publications with my direct mentorship.

Selected Publications

View all on Pubmed

Andrew J. Cohen; Hartley Brody; German Patino; Medina Ndoye; Aron Liaw; Christi Butler; Benjamin N. Breyer, M. Use of an Online Crowdfunding Platform for Unmet Financial Obligations in Cancer Care, JAMA Intern Med. Published online September 9, 2019. doi:10.1001/jamainternmed.2019.3330

Cohen AJ, Baradaran N, Mena J, Krsmanovich D, Breyer BN. Computational Fluid Dynamic Modeling of Urethral Strictures. J Urol. 2019 Aug;202(2):347-353. doi: 10.1097/JU.0000000000000187. Epub 2019 Jul 8. PubMed PMID: 30810463

Cohen AJ, Packiam VT, Nottingham CU, Pariser JJ, Faris SF, Bales GT. Iatrogenic Bladder Injury: National Analysis of 30-Day Outcomes. Urology. 2016 Nov;97:250-256. doi: 10.1016/j.urology.2016.05.002. Epub 2016 May 12. PubMed PMID: 27181242

Cohen AJ, Boysen W, Kuchta K, Faris S, Milose J. Artificial urinary sphincter longevity following transurethral resection of the prostate in the setting of prostate cancer. World J Urol. 2019 Mar 2;. doi: 10.1007/s00345-019-02684-z. [Epub ahead of print] PubMed PMID: 30826886

Cohen AJ, Ndoye M, Fergus KB, Lindsey J 2nd, Butler C, Patino G, Anger JT, Breyer BN. Forecasting Limited Access to Urology in Rural Communities: Analysis of the American Urological Association Census. J Rural Health. 2019 May 24;. doi: 10.1111/jrh.12376. [Epub ahead of print] PubMed PMID: 31125999

Activities & Honors


  • Department of Surgery Employee of the Month, University of Chicago, 2016
  • 2016 Winter Meeting Travel Award, SUFU
  • Schoenberg Research Competition 1st Prize, University of Chicago
  • Best Video Urolithiasis Session, AUA 2016
  • Best Poster Urinary Diversion & Reconstruction Session, AUA 2016
  • Alpha Omega Alpha (A?A) Inductee, University of Chicago
  • Sigma Xi Research Award for Impact on Society, University of Chicago
  • Deans Scholarship for Outstanding Promise in Medicine, University of Chicago

Videos & Media

Lectures and Presentations

  • Over 50 National and International Presentations
    Oral/Podium/Poster (01/01/1900)

Recent News Articles and Media Coverage

GoFundMe cancer care campaigns often don’t cover bills: study, New York Post (September 10, 2019)

Patient Ratings & Comments

The Patient Rating score is an average of all responses to physician related questions on the national CG-CAHPS Medical Practice patient experience survey through Press Ganey. Responses are measured on a scale of 1 to 5, with 5 being the best score. Comments are also gathered from our CG-CAHPS Medical Practice Survey through Press Ganey and displayed in their entirety. Patients are de-identified for confidentiality and patient privacy.

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