Find care / District of Columbia

Urologists for kidney stones in District of Columbia

All 67 licensed urologists practising in District of Columbia, across 1 cities, from the US federal provider registry. Listing is free and automatic — nobody pays to appear here and nobody can pay to rank higher.


Most urology appointments after a stone are about removing the stone. Preventing the next one is a different conversation, and not every practice offers it. These four questions sort that out in a two-minute phone call, before you spend a copay finding out.

  1. Does the doctor do metabolic stone evaluations? This is the term for working out why you form stones. If the answer is no, you want a different practice.
  2. Do they order 24-hour urine collections? The standard test for stone risk. A practice that does not order them is not doing prevention.
  3. Was my stone sent for composition analysis? If you passed or had a stone removed and nobody told you what it was made of, ask. Prevention depends on the type.
  4. Do they work with a renal dietitian? Diet does much of the work in stone prevention, and urologists are not dietitians. We list renal dietitians separately.

We cannot tell you which clinicians answer yes — the federal registry does not record it, and we will not guess. If you find out, tell us and we will note it against the listing.


Where we have it, each listing shows how many kidney stone procedures that clinician billed to Medicare in the reporting year — shock wave lithotripsy, ureteroscopy, and percutaneous nephrolithotomy. It is a public record of billing, published by CMS.

Three things this number is not

  • Not a rating. Higher volume is associated with better outcomes across surgery generally, but it is not a measure of how good any individual clinician is. These listings are ordered by city, never by volume.
  • Not their whole practice. Medicare fee-for-service only. It excludes Medicare Advantage, private insurance, and self-pay, so every figure undercounts.
  • Not comparable at the low end. CMS suppresses counts below 11 to protect patient privacy. A clinician doing ten a year shows nothing at all, which looks identical to doing none.

Washington 67

ClinicianPractice addressPhoneNPI
Chiledum Ahaghotu, MD
2139 Georgia Ave Nw, Suite 3D
Washington, DC 20060
202-865-70221912000134
Ramez Andrawis, MD
2150 Pennsylvania Ave Nw
Washington, DC 20037
202-741-31151326192360
Gaurav Bandi, MD
Urology · Urology · Urology
23 stone procedures billed to Medicare
3800 Reservoir Rd Nw
Washington, DC 20007
202-444-49221891750196
A Belman, MD
111 Michigan Ave Nw
Washington, DC 20010
202-884-50421417047895
Justin Benabdallah, MD
Urology · Urology · Urology
15 stone procedures billed to Medicare
5215 Loughboro Rd Nw
Washington, DC 20016
410-955-44941134419328
Elizabeth Brown, MD
Urology, Urogynecology and Reconstructive Pelvic Surgery · Urology, Urogynecology and Reconstructive Pelvic Surgery
15 stone procedures billed to Medicare
3800 Reservoir Rd Nw, 1Phc
Washington, DC 20007
202-444-49221417184441
Daniel Casella, MD
111 Michigan Ave Nw
Washington, DC 20010
202-476-62891265698286
George Chang, MD
106 Irving St Nw Ste 120
Washington, DC 20010
202-877-60321851368872
Kelly Chiles, MD
2150 Pennsylvania Ave Nw, Suite 3-417
Washington, DC 20037
202-741-23881073767059
Pamela Coleman, MD
1160 Varnum St Ne, Suite 318
Washington, DC 20017
202-526-28901457459778
Nicholas Constantinople, MD
Suite 311 3301 New Mexico Nw
Washington, DC 20016
202-364-58331922171297
Christopher Corbett, MD, MS
Urology · Urology, Pediatric Urology
111 Michigan Ave Nw
Washington, DC 20010
202-476-50421336702695
Tanya Davis, MD
Urology · Urology · Urology · Urology
111 Michigan Ave Nw, Children'S National Health System
Washington, DC 20010
202-476-50001023250685
Robert Dean, MD
2300 M St Nw Ste 210
Washington, DC 20037
202-677-69501326119025
Leslie Deane, MBBS, FRCSC
2041 Georgia Ave Nw Ste 4C2
Washington, DC 20060
202-865-13101700987153
Stephen Dejter, MD
3301 New Mexico Ave Nw Ste 311
Washington, DC 20016
202-364-34341750311916
Jenna Dickman, MD
Student in an Organized Health Care Education/Training Program · Urology
50 Irving St Nw Dept Of
Washington, DC 20422
202-745-80001376075028
Edward Dunne, MD FACS
Specialist · Urology
3301 New Mexico Ave Nw Ste 311
Washington, DC 20016
202-364-89181215000575
Jason Engel, MD,
Urology · Urology
12 stone procedures billed to Medicare
1147 20Th St Nw, Suite 400
Washington, DC 20036
202-223-10241285797605
Michael Fabrizio, MD
Urology · Urology · Urology
3800 Reservoir Rd Nw
Washington, DC 20007
202-444-49221427036664
Harold Frazier, MD
Urology · Urology · Urology
2150 Pennsylvania Ave Nw, Department Of Urology
Washington, DC 20037
202-741-31231932278660
Seyed Ghasemian, MD
Urology · Transplant Surgery
110 Irving St Nw, Dept. Of Urology
Washington, DC 20010
301-209-56121891775706
Myles Gibbons, MD
111 Michigan Ave Nw
Washington, DC 20010
202-884-50421326138702
Briana Goddard, MD
Student in an Organized Health Care Education/Training Program · Urology
2150 Pennsylvania Ave Nw
Washington, DC 20037
202-741-30001144859091
Mohit Gupta, MD
Urology · Urology
3800 Reservoir Rd Nw, Urology, Phc 4
Washington, DC 20007
202-444-47011467714576
Eduardo Haim, MD
Urology · General Practice
2029 K St Nw, Suite 301
Washington, DC 20006
202-659-02201588754592
Ryan Hankins, MD
Urology · Urology
3800 Reservoir Rd Nw, Department Of Urology
Washington, DC 20007
386-871-60681164712469
Dorota Hawksworth, MD
Walter Reed Army Medical Center Urology, 6900 Georgia Ave, Bldg 2, 4Th Fl
Washington, DC 20307
202-782-64061093926032
Frederick Hendricks, MD
2141 K Street Nw, Suite 308
Washington, DC 20037
202-293-92441811906514
Charlotte Houston, MD
3800 Reservoir Rd Nw Dept Of
Washington, DC 20007
202-444-49221003376542
Michael Hsieh, MD, PhD
Urology, Pediatric Urology · Urology, Pediatric Urology
111 Michigan Ave Nw
Washington, DC 20010
202-476-50421053552109
Jonathan Hwang, MD
110 Irving St Nw, Rm 3B-19
Washington, DC 20010
202-877-70111548353592
Thomas Jarrett, MD
Urology · Urology
13 stone procedures billed to Medicare
2150 Pennsylvania Ave Nw, Medical Faculty Associates Inc
Washington, DC 20037
202-741-83101891768925
Naida Kalloo, MD
111 Michigan Ave Nw
Washington, DC 20010
202-884-50421598855983
Katherine Klos, MD
Urology · Urology
700 2Nd St Ne, Kaiser Permanente Capitol Hill Medical Center
Washington, DC 20002
202-346-30001982849550
Keith Kowalczyk, MD
Urology · Student in an Organized Health Care Education/Training Program · Urology
3800 Reservoir Rd Nw, Department Of Urology, 4Phc
Washington, DC 20007
202-444-49221134370182
Ross Krasnow, MD, MPH, MS
Urology · Urology
110 Irving St Nw Dept Of
Washington, DC 20010
202-877-70111437471992
John Losee, MD
22 stone procedures billed to Medicare
1147 20Th St Nw, #400
Washington, DC 20036
202-223-10241932138906
John Lynch, MD
3800 Reservoir Rd Nw
Washington, DC 20007
202-444-49221396748802
Daniel Marchalik, MD
78 stone procedures billed to Medicare
3800 Reservoir Rd Nw, Department Of Urology
Washington, DC 20007
202-444-49221588963029
Adam Metwalli, MD
Urology · Urology
2041 Georgia Ave Nw
Washington, DC 20060
202-865-77201952499253
Augustine Mireku-Boateng, MD
2041 Georgia Ave Nw, Suite 4C-02
Washington, DC 20060
202-865-13141407867146
Patrick Mufarrij, MD
Urology · Urology · Urology
127 stone procedures billed to Medicare
5215 Loughboro Rd Nw, Suite 150 Nw
Washington, DC 20016
202-903-06601992900526
Lang Nguyen, MD
900 23Rd St Nw
Washington, DC 20037
202-715-48281922236082
Michael Phillips, MD
2021 K St Nw, Suite 408
Washington, DC 20006
202-223-10241699811349
Hans Pohl, MD
111 Michigan Ave Nw
Washington, DC 20010
202-884-50421407946890
Lee Richter
Urology · Student in an Organized Health Care Education/Training Program · Urology, Urogynecology and Reconstructive Pelvic Surgery
106 Irving St Nw Ste Pob 405, National Center For Advanced Pelvic Surgery
Washington, DC 20010
202-877-65261750542429
Inger Rosner, MD
6900 Georgia Ave Nw, Urology Service
Washington, DC 20307
202-782-64061326263427
Harry Rushton, MD
111 Michigan Ave Nw
Washington, DC 20010
202-476-26701023108412
Timothy Schneidau, MD
Urology · Urology · Urology
2150 Pennsylvania Ave Nw
Washington, DC 20037
202-741-34001629144977
Hrant Semerjian, MD
2440 M St Nw, Suite 418
Washington, DC 20037
202-466-57001740288125
Nathan Shaw, MD
Urology · Urology · Urology
3800 Reservoir Rd Nw # Phc3
Washington, DC 20007
202-444-49221083078166
Paul Shin, md
2021 K St Nw, Suite 408
Washington, DC 20006
202-223-10241891864617
Irwin Shuman, MD
2021 K St Nw, 408
Washington, DC 20006
202-223-10241942381322
Shailinder Singh, MD
Surgery, Pediatric Surgery · Urology, Pediatric Urology
111 Michigan Ave Nw
Washington, DC 20010
202-550-09461609008762
Armine Smith, MD
Urology · Urology · Urology
5215 Loughboro Rd Nw Ste 300
Washington, DC 20016
202-660-55611871704809
Lambros Stamatakis, MD
Urology · Urology
110 Irving St Nw, Suite 3B-19
Washington, DC 20010
202-877-26631962641332
Christopher Staniorski, MD
111 Michigan Ave Nw
Washington, DC 20010
484-467-03831285009514
Rachael Sussman, MD
3800 Reservoir Rd Nw, Dept Of Urology
Washington, DC 20007
202-444-49221366718504
Briony Varda, MD, MPH
Student in an Organized Health Care Education/Training Program · Urology, Pediatric Urology
111 Michigan Ave Nw
Washington, DC 20010
202-476-50421750672002
Krishnan Venkatesan, MD
110 Irving St Nw
Washington, DC 20010
202-877-70111245431998
Mohan Verghese, MD
Physical Medicine & Rehabilitation · Urology · Urology
110 Irving St Nw, Rm. C-2149
Washington, DC 20010
202-877-39681730155391
Michael Whalen, MD
Urology · Student in an Organized Health Care Education/Training Program · Urology
2150 Pennsylvania Ave Nw, Dept Of Urology, Gw Mfa Suite 3-417
Washington, DC 20037
202-741-31001164675245
A Wiederhorn, MD
4024 Mansion Ct Nw
Washington, DC 20007
202-333-39181831432947
Jennifer Wimberly
3800 Reservoir Rd Nw
Washington, DC 20007
202-444-73711154350437
Dock Winston, MD, MPH
Student in an Organized Health Care Education/Training Program · Urology
700 2Nd St Ne
Washington, DC 20002
202-346-37841033379607
Kenneth Witmer, MD
2150 Pennsylvania Ave Nw Ste 3-417
Washington, DC 20037
202-741-31121518385327

Source: CMS NPI Registry API v2.1 (public domain), retrieved August 18, 2026. Inclusion is not a recommendation and this page does not rate or rank clinicians. Registry records can be out of date — confirm details with the practice. Clinicians can claim or correct a listing at no cost.