Dr. Brian Matlaga is a Professor of Urology at Johns Hopkins University School of Medicine and also is the Director of the Stephens Center for Stone Disease as well as the Executive Vice Chair of the James Buchanan Brady Urological Institute. Dr. Matlaga is an internationally recognized expert in the medical and surgical management of patients with urinary stone disease. A frequent contributor to the medical press, with over 180 peer-reviewed publications, Dr. Matlaga’s research has received national and international awards. Dr. Matlaga sits on numerous editorial boards as well as advisory committees and guidelines panels for the American Urological Association, the American Board of Urology, the Endourological Society, and the National Institutes of Health, amongst others. Dr. Matlaga serves as Executive Medical Director of Clinical Affairs for Johns Hopkins Medicine International, the arm of Johns Hopkins Medicine that manages its global presence. In this capacity, he delivers clinical care as well as project leadership across the globe. Dr. Matlaga is rated as a Distinguished provider by MediFind in the treatment of Urinary Tract Infection (UTI). His top areas of expertise are Kidney Stones, Bladder Stones, Boils, Ureteroscopy, and Lithotripsy.

Vikrant Uberoi is an Urologist in Baltimore, Maryland. Dr. Uberoi is rated as a Distinguished provider by MediFind in the treatment of Urinary Tract Infection (UTI). His top areas of expertise are Urinary Tract Infection (UTI), Enlarged Prostate (BPH), Urinary Tract Infection in Children, Ureteroscopy, and Bladder Reconstruction. Dr. Uberoi is currently accepting new patients.

Kelly Johnson is an Urologist in Baltimore, Maryland. Dr. Johnson is rated as a Distinguished provider by MediFind in the treatment of Urinary Tract Infection (UTI). Her top areas of expertise are Urinary Incontinence, Stress Urinary Incontinence, Urinary Tract Infection in Children, and Urinary Tract Infection (UTI). Dr. Johnson is currently accepting new patients.

Arun Rai, M.D., M.B.A., M.S., is a urologist who specializes in minimally invasive surgery and endourology and has extensive training to treat patients with adrenal cancer, kidney cancer, ureteral cancer and prostate cancer. In addition, he also specializes in treating patients with BPH, kidney stones and bladder stones. Dr. Rai earned both his undergraduate and medical degrees through the highly selective seven-year accelerated medical education program at Boston University School of Medicine. Dr. Rai went on to complete a general surgery internship at Baylor College of Medicine, where he then also completed his urology residency. Dr. Rai continued his training at the Northwell Health’s Smith Institute for Urology by completing a fellowship in Endourology and Minimally Invasive Surgery. During this time, he also received a dual MBA/MS in Healthcare Leadership Weill Cornell Graduate School of Medical Sciences and Cornell University. In addition to caring for patients, Dr. Rai serves as Clinical Director for the Brady Urological Institute's Quantitative Data Sciences division. His research focuses on developing the next generation of surgical technology, focusing on artificial intelligence and machine learning for optimizing clinical care. He strongly believes that surgeons should have an active role in the development of the next generation of tools for the optimal treatment of patients. He has authored several publications, with topics including patient safety in the operating room, long-term outcomes of subcapsular renal hematoma, pelvi-ureteric junction obstruction and featured in journals such as Urology and the Journal of Endourology. Dr. Rai is rated as an Advanced provider by MediFind in the treatment of Urinary Tract Infection (UTI). His top areas of expertise are Kidney Stones, Horseshoe Kidney, Boils, Ureteroscopy, and Lithotripsy.

Qinglin Gao is a primary care provider, practicing in Internal Medicine in Timonium, Maryland. Dr. Gao is rated as an Advanced provider by MediFind in the treatment of Urinary Tract Infection (UTI). His top areas of expertise are Pleurisy, Atypical Pneumonia, Hospital-Acquired Pneumonia, Endoscopy, and Gastrostomy.

Ahmed Ghazi is an associate professor of urology at the Johns Hopkins University School of Medicine. He is the Director of Surgical Simulation Training and the Division of Minimally Invasive and Robotic Surgery within the Johns Hopkins Brady Urological Institute. Dr. Ghazi specializes in urologic surgical oncology using the latest techniques of minimally invasive surgery for prostate, kidney, bladder, ureteral and other genitourinary organ cancers. He also as specializes in minimal invasive treatment of complex stones of the urinary tract. Dr. Ghazi is a pioneer in the field of patient-specific surgical simulation, which has applications for training future surgeons as well as improving outcomes for patients through individualized modeling. When planning for a complex surgery, Dr. Ghazi constructs 3D models of the patient’s anatomy in order to plan and rehearse surgery prior to the actual surgery. These models span from digital renderings to tangible models used to practice the critical components of your surgery. Dr. Ghazi received his medical degree from Cairo University in Egypt in 2000, where he also completed his surgery training and urology residency. From there, Dr. Ghazi completed a laparoscopic fellowship in Paris, France in 2008, followed by a second laparoscopic fellowship in Austria in 2009. While practicing in Europe, Dr. Ghazi was accepted to the European Board of Urology. Dr. Ghazi continued his training at the University of Rochester, New York through a two-year fellowship in the robotic treatment of various urologic cancers. He then joined the staff at the urology department of University of Rochester in 2012 where he continued to practice until joining Johns Hopkins Medicine. Dr. Ghazi believes in a reciprocal relationship between innovation, surgery & research where each informs and strengthens the others. He strives to adopt innovative surgical technologies that are evidence-based, benefit his patients and translate directly to improved patient outcomes. Dr. Ghazi is rated as an Experienced provider by MediFind in the treatment of Urinary Tract Infection (UTI). His top areas of expertise are Prostate Cancer, Kidney Stones, Boils, Prostatectomy, and Nephrectomy.

Naren Nimmagadda, M.D., is an assistant professor of urology at the Johns Hopkins University School of Medicine. He treats a wide range of benign and malignant urological conditions. As a fellowship trained urologist in endourologic and laparoscopic surgery, his practice focuses on treated voiding issues related to BPH through Holmium Laser Enucleation of the Prostate (HoLEP), an alternative to transurethral resection of the prostate (TURP). Dr. Nimmagadda also specializes in treating kidney, ureteral and bladder stones via shockwave lithotripsy, endoscopic and percutaneous techniques. Dr. Nimmagadda is the Endourology, Minimally Invasive Urology Fellowship Program Director. Dr. Nimmagadda attended medical school at the University of Maryland School of Medicine. Following medical school, Dr. Nimmagadda completed a general surgery internship and residency in urology at Massachusetts General Hospital. He then completed a fellowship in endourology and laparoscopic surgery at Vanderbilt University Medical Center. Following graduation, Dr. Nimmagadda served on the Vanderbilt University Medical Center’s Department of Urology faculty as an instructor. Dr. Nimmagadda has research interest in the intersection of urology and technological innovation. Dr. Nimmagadda is rated as an Experienced provider by MediFind in the treatment of Urinary Tract Infection (UTI). His top areas of expertise are Kidney Stones, Enlarged Prostate (BPH), UPJ Obstruction, Ureteroscopy, and Lithotripsy.

Nirmish Singla is an Oncologist in Lutherville, Maryland. Dr. Singla is rated as an Experienced provider by MediFind in the treatment of Urinary Tract Infection (UTI). His top areas of expertise are Upper Tract Urothelial Carcinoma (UTUC), Renal Cell Carcinoma (RCC), Urothelial Cancer, Nephrectomy, and Orchiectomy.

Dr. Herati is a urologist with fellowship training in male infertility and andrology. He has specialized training to perform complex reconstructions of the reproductive system, including vasectomy reversal with vasovasostomy and vasoepididymostomy. Additionally, he has an interest in treating patients with chronic prostatitis and pelvic pain, as well as patients experiencing low testosterone, erectile dysfunction, Peyronie’s disease and benign prostatic hyperplasia (BPH). Of note, he has the ability to perform fertility treatments on patients who have experienced spinal cord injuries using nonsurgical methods of sperm extraction. Dr. Herati believes in an individualized approach to care that addresses the whole patient. He invests significant time into building a rapport with his patients so that they feel comfortable opening up about these issues, allowing him to accurately identify and manage each patient’s needs. His research interests include decoding the genetic basis of male infertility, investigating the impact of referred pain from peripheral nerves to the bladder, and characterizing the effects of low testosterone on prostate inflammation and PSA screening. Dr. Herati sees patients at both the Johns Hopkins Hospital and The Johns Hopkins Bayview Medical Center. Videos Amin Herati, M.D.Urologist. Dr. Herati is rated as an Experienced provider by MediFind in the treatment of Urinary Tract Infection (UTI). His top areas of expertise are Enlarged Prostate (BPH), Varicocele, Hypogonadism, Nephrectomy, and Prostatectomy.

Benjamin Fakheri is a primary care provider, practicing in Internal Medicine in Lutherville, Maryland. Dr. Fakheri is rated as an Experienced provider by MediFind in the treatment of Urinary Tract Infection (UTI). His top areas of expertise are Familial Hypertension, Hypertension, Glucocorticoid-Remediable Aldosteronism, and Splenic Infarction.

Chad Crigger, M.D., M.P.H., is a pediatric urologist at Johns Hopkins Children’s Center and an assistant professor of urology at the Johns Hopkins Brady Urological Institute. He also serves as the Associate Program Director of the Urology Residency Program. After growing up in Charleston, West Virginia, Dr. Crigger attended the University of Richmond, where he majored in biology. After college, he returned home to West Virginia and obtained his medical doctorate from Marshall University and a master’s in public health from West Virginia University. He then completed an internship in general surgery and a residency in urologic surgery at West Virginia Ruby Memorial Hospital, where he was drawn to pediatric urology, particularly the reconstructive aspects that draw on principles from several fields including pediatric plastic surgery. This, and a chance visiting professorship by John Gearhart, M.D., inspired Dr. Crigger to pursue training in major reconstructive pediatric urology at Johns Hopkins, where he completed a fellowship. Relying on his background as a camp counselor, Dr. Crigger makes his patients active participants in their care whenever possible, often through sketching their condition. He is a member of multiple professional societies, including the American Urological Association and the American College of Surgeons. A researcher and director of pediatric urology research, he has published more than 50 articles in major journals and contributed to over 20 book chapters on pediatric urology. Dr. Crigger’s research focuses on his passion for major congenital anomalies, particularly the exstrophy-epispadias complex, about which he has multiple projects spanning the basic and clinical sciences. Additionally, with extensive training in robotic surgery, Dr. Crigger serves as director of robotic surgery for pediatric urology. His team looks for ways to safely apply the robotic surgery platform, including single port surgery, when feasible. His philosophy in practicing medicine is simple: to “provide the greatest benefit through the most up-to-date and least morbid treatment options possible.” Regarding providing care for patients and working with families, his focus is singular. When talking with parents, he can often be heard saying, “I know that, whether I am performing surgery or offering my professional recommendation, I am caring for one of the most important people in your life. I take that responsibility seriously and will do my very best to deliver the highest level of care possible.” Videos Chad Crigger, M.D.Pediatric Urologist. Dr. Crigger is rated as an Experienced provider by MediFind in the treatment of Urinary Tract Infection (UTI). His top areas of expertise are Exstrophy of the Bladder, Cloacal Exstrophy, Exstrophy-Epispadias Complex, Osteotomy, and Bladder Reconstruction.

Dr. Rameen J. Molavi is part-time on the medical faculty as an instructor in medicine in the division of General Internal Medicine within the Department of Medicine at the Johns Hopkins University School of Medicine. His area of clinical expertise is internal medicine. Dr. Molavi is also the managing physician and chair of Park Medical Associates, a member of Johns Hopkins Regional Physicians. He is the recipient of the 2025 Samuel P. Asper Award for excellence in medicine from the Maryland Chapter of the American College of Physicians. Dr. Molavi holds a B.A. in biology from Rice University in Houston, TX. He earned his M.D. at the Johns Hopkins University School of Medicine. He completed his internship and residency in categorical internal medicine at the Washington University School of Medicine Barnes-Jewish Hospital in St. Louis, MO. He began medical practice in Lutherville in 1999 and joined Park Medical Associates in 2009. His practice focus is on primary care for adults of all ages. Recent News Articles and Media Coverage Dr. Rameen Molavi: COVID-19 Testing Realities, WYPR (April 28, 2020) Samuel Asper Award, American College of Physicians (2025). Dr. Molavi is rated as an Experienced provider by MediFind in the treatment of Urinary Tract Infection (UTI). His top areas of expertise are Mesenteric Venous Thrombosis, Glucocorticoid-Remediable Aldosteronism, Familial Hypertension, and Hypertension.

Brenda Lapkovsky, M.D., is a family medicine provider at Johns Hopkins Community Physicians' Green Spring Station location. Dr. Lapkovsky earned her Doctor of Medicine from Ross University, School of Medicine. She completed a residency in family practice at Robert Wood Johnson University Hospital in New Brunswick, NJ, and a residency internship in internal medicine at Icahn School of Medicine at Mount Sinai in New York. Dr. Lapkovsky is rated as an Experienced provider by MediFind in the treatment of Urinary Tract Infection (UTI). Her top areas of expertise are Hypertension, Familial Hypertension, Glucocorticoid-Remediable Aldosteronism, and Vitamin D Deficiency.

Daniel Dietrick is an Urologist in Towson, Maryland. Dr. Dietrick is rated as an Advanced provider by MediFind in the treatment of Urinary Tract Infection (UTI). His top areas of expertise are Prostate Cancer, Familial Prostate Cancer, Enlarged Prostate (BPH), Ureteroscopy, and Vasectomy.

Alan Geringer is an Urologist and an Addiction Medicine provider in Towson, Maryland. Dr. Geringer is rated as an Advanced provider by MediFind in the treatment of Urinary Tract Infection (UTI). His top areas of expertise are Familial Prostate Cancer, Prostate Cancer, UPJ Obstruction, Ureteroscopy, and Reconstructive Urology Surgery. Dr. Geringer is currently accepting new patients.

Eun Kim is a primary care provider, a Pediatrics specialist and a General Practice provider in Lutherville, Maryland. Dr. Kim is rated as an Advanced provider by MediFind in the treatment of Urinary Tract Infection (UTI). Her top areas of expertise are Bronchitis, Acute Cystitis, Multisystem Inflammatory Syndrome in Children (MIS-C), and COVID-19.

Adam Faill is a primary care provider, practicing in Internal Medicine in Lutherville, Maryland. Dr. Faill is rated as an Advanced provider by MediFind in the treatment of Urinary Tract Infection (UTI). His top areas of expertise are Acute Cystitis, Bronchitis, Atypical Pneumonia, and Hospital-Acquired Pneumonia.

Tatyana Kushnir is a primary care provider, practicing in Family Medicine in Lutherville, Maryland. Dr. Kushnir is rated as an Advanced provider by MediFind in the treatment of Urinary Tract Infection (UTI). Her top areas of expertise are Bronchitis, Acute Cystitis, Atypical Pneumonia, and Hospital-Acquired Pneumonia. Dr. Kushnir is currently accepting new patients.

David Stampfer is an Urologist in Towson, Maryland. Dr. Stampfer is rated as an Advanced provider by MediFind in the treatment of Urinary Tract Infection (UTI). His top areas of expertise are Enlarged Prostate (BPH), Kidney Stones, UPJ Obstruction, Ureteroscopy, and Prostatectomy. Dr. Stampfer is currently accepting new patients.

Andrew Buscemi is a primary care provider, practicing in Family Medicine in Baltimore, Maryland. Dr. Buscemi is rated as an Advanced provider by MediFind in the treatment of Urinary Tract Infection (UTI). His top areas of expertise are Bronchitis, Multisystem Inflammatory Syndrome in Children (MIS-C), COVID-19, and Sinusitis. Dr. Buscemi is currently accepting new patients.