Our Physicians & Providers
FRANCIS ZAVALLA, APRN
Nurse Practitioner
DOMENIC ZAMBUTO, M.D., RPVI
National Medical Director
A caring, skilled
varicose & vein team
United Vein & Vascular Centers’ physicians and providers are nationally-recognized and fully
dedicated to the vein healthcare field. Through superior knowledge and state-of-the-art medical
technology, our staff help patients improve their quality of life by eliminating symptoms such
as pain, aching, and swelling caused by damaged or unsightly veins.
GAMAL WAZNI, M.D.
Founder and Chief Executive Officer
ALI WAZNI, M.D.
Chief Medical Officer
MORDECHAI TWENA, M.D.
Board-Certified Surgeon & Vein Specialist
SERIK TURSUNALIEV, M.D.
Board-Certified Internal Medicine & Vein Specialist
VIVIAN TORRES, M.D.
Board-Certified Vascular Surgeon & Endovascular Specialist
LIZA THALHEIMER, M.D.
Board-Certified Surgeon & Vein Specialist
DAVID STONE, M.D.
Board-Certified Family Medicine & Vein Specialist
PAULINE STAWINSKI, PAC
Physician Assistant
ADEEB SEBAI, M.D.
Board-Certified Internal Medicine & Vein Specialist
MAURICE ROULHAC, M.D.
Board-Certified Vascular Surgeon & Endovascular Specialist
SRINIVAS ‘VASU’ RAO, M.D.
Board-Certified Interventional Radiologist & Vein Specialist
ASHLEY POWELL, APRN
Nurse Practitioner
ADAM PHILLIPS, D.O.
Board-Certified Surgeon & Vein Specialist
KEVIN PETERMANN, M.D.
Board-Certified Internal Medicine & Vein Specialist
UMANG PATEL, M.D.
Board-Certified Family Medicine & Vein Specialist
AMANDA PARKER, M.D.
Board-Certified Surgeon & Vein Specialist
ROBERT OSIPOV, M.D.
Board-Certified Surgeon & Vein Specialist
RANDALL OREM, D.O.
Board-Certified Cardiovascular Disease Specialist
JESSICA OLIVAREZ, APRN
Nurse Practitioner
OBI OKOYE, M.D.
Venous & Lymphatic Medicine Specialist
JENNIFER NGUYEN, APRN
Nurse Practitioner
ARIAN MOSHREF, D.O.
Board-Certified Internal Medicine & Vein Specialist
PAOLA MENDOZA, PAC
Physician Assistant
ARTHUR MAYDELL, M.D.
Board-Certified Radiologist & Endovascular Specialist
REX MANAYAN, M.D.
Board-Certified Surgeon & Vein Specialist
CONRAD MANAYAN, D.O.
Board-Certified Surgeon & Vein Specialist
CHRISTIAN MALALIS, M.D.
Board-Certified Interventional Radiologist & Vein Specialist
DANIEL LEBOWITZ, M.D.
Board-Certified Radiologist & Endovascular Specialist
LOAN LAM, D.P.M.
Medical Director of Wound Services
RACHEL LAGROSA, APRN
Nurse Practitioner
MICHAELA S. KLEIN, D.O.
Board-Certified Surgeon & Vein Specialist
ROBERT KIRSCH, M.D., RVT, RPVI, RPHS
Board-Certified Interventional Radiologist & Vein Specialist
WILLIAM KIANG, D.O.
Board-Certified Surgeon, Vascular & Endovascular Specialist
JAMES M. KEMMERLING, M.D.
Board-Certified Surgeon & Vein Specialist
WILLIAM “KENT” JOHNSON, M.D., FACS, RPVI
Board-Certified Surgeon & Vein Specialist
ARTHUR JAMES, M.D.
Board-Certified Surgeon & Vein Specialist
KYLE HERRON, M.D.
Board-Certified Surgeon & Vein Specialist
ELIZABETH HARVEY, M.D.
Board-Certified Surgeon & Vein Specialist
FRANCHELL HAMILTON, M.D.
Senior Regional Medical Director
TODD GREER, M.D.
Venous & Lymphatic Medicine Specialist
ANDREW GEORGESON, D.O.
Board-Certified Surgeon & Vein Specialist
JOJY GEORGE, M.D.
Board-Certified Surgeon & Vein Specialist
KEVIN FRADKIN, M.D.
Board-Certified Surgeon & Vein Specialist
KELLI FAVATA, M.D.
Venous & Lymphatic Medicine Specialist
JOHN EUN, M.D.
Board-Certified Vascular Surgeon & Endovascular Specialist
HARVEY ECHOLS, M.D.
Venous & Lymphatic Medicine Specialist
MELISSA DUNN, M.D.
Certified Venous & Lymphatic Medicine Specialist
MELISSA DUBOIS, APRN, CWS
Nurse Practitioner
SARAH DONNELLY HANS, M.D.
Board-Certified Surgeon & Vein Specialist
SHANNON DAVIS, D.O.
Board-Certified Surgeon & Vein Specialist
AMANDA DAO, D.O.
Board-Certified Surgeon & Vein Specialist
JOSEPH COCCO, D.O.
Board-Certified Surgeon & Vein Specialist
DESIREE CLARKE, M.D.
Venous & Lymphatic Medicine Specialist
CAROLINE CAMARATA, PAC
Physician Assistant
ARLYN CAMACHO, APRN
Nurse Practitioner
ASHEESH BOTHRA, M.D.
Board-Certified Internal Medicine & Vein Specialist
VICKI BLACKWELL, PA
Physician Assistant
NABIEL AZAR, D.O.
Board-Certified Surgeon & Vein Specialist
Take action today and schedule the varicose vein treatment you deserve.
IAC accredited facilities are dedicated to ensuring quality patient care and promoting health care within a specific medical specialty.
Patients can rely on our accreditations as an indication that our facilities have made a commitment to providing quality testing for the diagnosis of vascular disease. United Vein Centers has been carefully critiqued on all aspects of its operations considered relevant by medical experts in the field of vascular technology.
