Call Us:  318-227-8899


Diseases of the Kidney, Dialysis and Transplantation

Meet Our Providers

Northwest Louisiana Nephrology physicians are Board Certified in Nephrology.  Several of our physicians are currently or have recently served as Directors of Nephrology at the area hospitals, including Willis Knighton Medical Center and Christus Highland.  Additionally, our physicians serve as the Medical Directors for the majority of the Fresenius Dialysis Centers in the area, as well as WK Outpatient Dialysis Center.  

Philip J. Garavaglia, M.D.                                        Stephen R. Patton, M.D.                                  Cheng Chu, M.D.

Marwan O. Kaskas, M.D.,FASN, CPI                      Raja I. Zabaneh, M.D., FACP

Sylvia D. Noble, M.D.                                               Sreedhara Alla, M.D.

Michael D. Rokaw, M.D. FASN                               Zulqarnain Abro, M.D.

Arnold E. Barz, M.D.                                                 Srinivasa Iskapalli, M.D.

Nurse Practitioners

Nurse Practitioners are important members of the health care team.  Our Nurse Practitioners work under clinical protocols developed by our physicians for the purpose of caring for the practice's patients.  Our Nurse Practitioners provide both urgent and routine care depending on the situation while working closely with our physicians to ensure that our patients receive the best care possible.  For more information about Nurse Practitioners please visit the American Academy of Nurse Practitioners.

Mary M. Dowden, FNP-BC                             Kelli F. Jacob, ACNP-BC                    Donald Blake Smith, NP-BC                 Gina Bryant, AGPCNP-C

Patricia T. Kennedy, FNP-BC                         Audrey R. Smith, ACNP-BC              Cassie Miller, PA-C                                 Chase White, APRN, AGOCNP


To schedule an appointment, please call: 318-227-8899.