Access Surgery Center

The Capital Nephrology Access Center (CNAC) is accredited by the Accreditation Association of Ambulatory Health Care (AAAHC). The accreditation signifies that we have met the rigorous standards of a nationally recognized third party. In addition, it shows our commitment to providing the highest levels of quality health care to our patients and the same high level of conduct in our business practices.

The Access Center provides a vast array of quality services to our dialysis and pre-dialysis patients. It is conveniently located at 1111 Exposition Blvd, Sacramento, CA 95815.

Our goal at the Capital Nephrology Access Center is to provide quality service in a safe, timely and efficient environment. Our physicians are experienced nephrologists (kidney specialists) that understand the importance of maintaining a properly functioning hemodialysis access as our patient's lifeline. Our staff is cordial, friendly and professional.

  • Tunneled Dialysis Catheter Placement
  • Dialysis Catheter Removal
  • Fistulogram
  • Fistulogram and Angioplasty
  • Declotting Procedure
  • Stent Placement
  • Duplex Ultrasound
  • Vein Mapping
  • Angiogram
  • Treatment of immature fistula
  • Naveen Atray, M.D.
  • John Ray Ballenger, M.D.
  • Ratnaji B. Nallamothu, M.D.
  • Elena V. Gelfand, M.D.
  • David Pai, M.D.
  • Rohit Kashyap, M.D.
  • Tarang Patel, M.D.
  • Ganesh Kambhampati, M.D., M.S., FASN
  • Johan Winoto, M.D.
  • Mahfuzur Rahman, M.D., MPH

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Is it a surgery? How will the interventional procedure be done?

This does not involve surgery. The entire procedure is performed through a small puncture in the fistula or graft. This puncture is smaller than that of a dialysis needle. The physician takes moving pictures of the access using a contrast and fluoroscopy (real-time x-ray). If any narrowings are discovered, a balloon catheter is inserted through the same small puncture to open the problem area. This is known as angioplasty.

Is the interventional procedure painful?

During the procedure we are able to give you medication to keep you comfortable. Patients are advised not to eat or drink before this procedure.

How long does the interventional procedure take?

The average procedure usually takes approx. 45-60 minutes. Your appointment will be scheduled to minimize the waiting period. Most of our patients tell us they spend more time waiting to be admitted to their hospital's emergency room.

Our Locations


Capital Nephrology Medical Group

333 University Av., Suite 120

Sacramento, CA 95825

Tel: 916-929-8564

Fax: 916-929-4529

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We care about your and your family members' health and helping you make wise care decisions.

Understanding what kind of care you and your family members need is important.

If you think you or your family member has a medical or psychiatric emergency, call 911 or go to the nearest hospital. Do not attempt to access emergency care through this website.