Find care / Rhode Island

Urologists for kidney stones in Rhode Island

All 67 licensed urologists practising in Rhode Island, across 12 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.

Providence 30

ClinicianPractice addressPhoneNPI
Liza Aguiar, MD
Student in an Organized Health Care Education/Training Program · Urology, Pediatric Urology · Urology
195 Collyer St 201
Providence, RI 02904
401-276-20021861652349
Shadi Al Ekish, MD
593 Eddy St
Providence, RI 02903
401-444-85701942593157
Mariepet Ask, MD
Urology · Urology
164 Summit Ave
Providence, RI 02906
401-793-45791477762706
Gabriella Avellino, MD
2 Dudley St Ste 175185
Providence, RI 02905
401-421-07101700129236
Lauren Bakios
Surgery · Urology
195 Collyer St Ste 201
Providence, RI 02904
401-272-77991912310301
Anthony Caldamone, MD
Urology · Urology
2 Dudley St, Suite 185
Providence, RI 02905
401-421-07101235197278
Steven Cohen, MD
195 Collyer St Ste 201
Providence, RI 02904
401-272-77991578521183
Boris Gershman, MD
Urology · Urology
195 Collyer St, Suite 201
Providence, RI 02904
401-272-77991013177518
Dragan Golijanin, MD
2 Dudley St Ste 185
Providence, RI 02905
401-421-07101841304078
Cameron Hicks, MD
593 Eddy St
Providence, RI 02903
323-240-20451306521976
Elias Hyams, MD
Urology · Urology · Urology
195 Collyer St Ste 201
Providence, RI 02904
401-272-77991609047307
Harry Iannotti, MD
1165 N Main St, Ste. 200
Providence, RI 02904
401-521-43331154360469
Sari Khaleel, MD
Urology · Urology
195 Collyer St Ste 201
Providence, RI 02904
401-272-77991306290184
Dicken Ko, MD
Transplant Surgery · Urology
195 Collyer St Ste 201
Providence, RI 02904
401-272-77991083604219
Sreeya Komaravolu, MD
593 Eddy St
Providence, RI 02903
401-444-57951225650286
Katherine Mahon, MD
2 Dudley St Ste 175185
Providence, RI 02905
401-421-07101689139909
Sarah Moore
Urology · Urology
593 Eddy St
Providence, RI 02903
401-444-57951538620760
John Morgan, MD
593 Eddy St
Providence, RI 02903
401-444-84501912572371
Gyan Pareek, MD
18 stone procedures billed to Medicare
195 Collyer St, Suite 201
Providence, RI 02904
401-272-77991376654350
Suhas Penukonda, MD
593 Eddy St
Providence, RI 02903
401-444-57951972248201
Joseph Renzulli, MD
Urology · Urology
195 Collyer St, Suite 201
Providence, RI 02904
401-272-77991538108832
Stephen Rous, MD
830 Chalkstone Ave
Providence, RI 02908
401-273-71001063425700
Daniel Sanford, MD
593 Eddy St
Providence, RI 02903
401-444-57951023766540
Mark Sigman, MD
2 Dudley St, Suite 185
Providence, RI 02905
401-421-07101114038155
Barry Stein, MD
2 Dudley St, Suite 174
Providence, RI 02905
401-444-85771194865030
Simone Thavaseelan
30 stone procedures billed to Medicare
2 Dudley St Ste 185
Providence, RI 02905
401-444-57951053530782
Andrew Tompkins, MD
Urology · Urology
195 Collyer St Ste 201
Providence, RI 02904
401-272-77991285862433
Meredith Wasserman, MD
Urology · Urology, Urogynecology and Reconstructive Pelvic Surgery
195 Collyer St Ste 201
Providence, RI 02904
401-272-77991518496264
Arthur Wong, MD
195 Collyer St, Suite 201
Providence, RI 02904
401-277-77991720180797
Hsi-Yang Wu, MD
Urology · Urology, Pediatric Urology
2 Dudley St Ste 175
Providence, RI 02905
401-421-07101578539870

West Warwick 8

ClinicianPractice addressPhoneNPI
Angelo Cambio, MD
207 Quaker Ln, Fl 1
West Warwick, RI 02893
239-931-73421508879610
Joseph Cambio, DO
15 stone procedures billed to Medicare
207 Quaker Ln
West Warwick, RI 02893
401-828-71101558428540
Joseph Cambio, MD
Specialist · Urology
207 Quaker Ln
West Warwick, RI 02893
401-828-71101346245305
Vincent Catallozzi, MD
Specialist · Urology
207 Quaker Ln
West Warwick, RI 02893
401-828-71101174528699
Atip Chatsudthipong, MD
207 Quaker Ln Fl 1
West Warwick, RI 02893
401-828-71101508126590
Bruce Kilstein, DO
207 Quaker Lane
West Warwick, RI 02893
401-828-71101710994686
Mark Leo, MD
Urology · Urology · Urology · Urology
207 Quaker Ln Fl 1
West Warwick, RI 02893
401-828-71101730117730
Alexander Lubin, MD
17 stone procedures billed to Medicare
207 Quaker Ln
West Warwick, RI 02893
401-275-81101457795015

Newport 6

ClinicianPractice addressPhoneNPI
Ashley Alford, MD
Urology · Urology
11 Friendship St
Newport, RI 02840
401-845-15291790218394
Samuel Eaton, MD
Urology · Urology · Urology
15 stone procedures billed to Medicare
23 Powel Ave Apt 3
Newport, RI 02840
401-228-06311407026479
John Heffernan, MD
12 stone procedures billed to Medicare
38 Powel Ave
Newport, RI 02840
401-847-24181649243643
Joseph Heineman, MD
38 Powel Ave
Newport, RI 02840
401-847-24181154394096
Arnold Sarazen, MD
38 Powel Ave
Newport, RI 02840
401-847-24181457324758
Richard Zuerner, MD
38 Powel Ave
Newport, RI 02840
401-847-24181215900758

E Providence 4

ClinicianPractice addressPhoneNPI
Rashmi Licht, MD
450 Veterans Memorial Pkwy, Building 14
E Providence, RI 02914
401-435-66001164620548
Eric Miller, MD
450 Veterans Memorial Pkwy, Building 14
E Providence, RI 02914
401-435-66001194829366
Kennon Miller, MD
450 Veterans Memorial Pkwy, Building 14
E Providence, RI 02914
401-435-66001689786725
Bernard Moule, MD
450 Veterans Memorial Pkwy, Building 14
E Providence, RI 02914
401-435-66001629180757

Warwick 4

ClinicianPractice addressPhoneNPI
Alexander Calenda, md
42 stone procedures billed to Medicare
300 Toll Gate Rd, 206
Warwick, RI 02886
401-738-25851801831607
Curtis Jones, md
390 Toll Gate Rd, Suite 204
Warwick, RI 02886
401-737-52531700820578
George Turini, MD
Surgery · Urology
176 Toll Gate Rd Ste 301
Warwick, RI 02886
401-244-90901508095936
Vincent Zizza, DO
Specialist · Urology
400 Bald Hill Rd
Warwick, RI 02886
401-739-29841528085289

East Providence 3

ClinicianPractice addressPhoneNPI
Madeline Cancian, MD
Urology · Surgery · Urology · Urology
450 Veterans Memorial Pkwy Bldg 14
East Providence, RI 02914
401-453-66001942647276
Vincent Harisaran, MD
Surgery · Urology
450 Veterans Memorial Pkwy, Bldg 14
East Providence, RI 02914
401-435-84881699977744
John Maynard, MD
Metacomet Office Park, 450 Veterans Parkway
East Providence, RI 02914
401-435-84861144464587

Johnston 3

ClinicianPractice addressPhoneNPI
Michael Alavian, MD
1524 Atwood Ave Ste 322
Johnston, RI 02919
401-331-74001538489364
Anthony Rotelli, MD
1524 Atwood Ave, Suite 115
Johnston, RI 02919
401-272-34091376670117
Monika Tedeschi
1524 Atwood Ave Ste Ll6
Johnston, RI 02919
401-331-74001407344823

Wakefield 3

ClinicianPractice addressPhoneNPI
Katelyn Johnson
Student in an Organized Health Care Education/Training Program · Urology
11 stone procedures billed to Medicare
70 Kenyon Ave Ste 210
Wakefield, RI 02879
401-788-87801881183325
Tess Martens, APRN
Urology · Nurse Practitioner, Family · Nurse Practitioner
70 Kenyon Ave Unit 324
Wakefield, RI 02879
401-788-87801225606247
Leif Olsson, MD
Urology · Urology
70 Kenyon Ave Ste 210
Wakefield, RI 02879
401-788-87801265489306

Westerly 3

ClinicianPractice addressPhoneNPI
Erik Enquist, MD
Urology · Urology
35 Wells St
Westerly, RI 02891
401-596-09641619963535
Tobias Goodman, MD
41 East Ave
Westerly, RI 02891
401-596-77361336133925
Franklin Leddy, MD
Urology · Urology
35 Wells St
Westerly, RI 02891
401-596-09641124014048

East Greenwich 1

ClinicianPractice addressPhoneNPI
Paul Barber, MD
68 Wolverstone Rd
East Greenwich, RI 02818
401-742-03321649261629

Lincoln 1

ClinicianPractice addressPhoneNPI
Bruce Nadjmi
5 Christopher Drive
Lincoln, RI 02865
401-723-72161104075084

Portsmouth 1

ClinicianPractice addressPhoneNPI
Lawrence Audino, MD
284 Sea Meadow Dr
Portsmouth, RI 02871
401-293-09331982823209

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.