Are you having back pain with any of the following?

  • Severe pain, weakness or tingling in your leg(s).
  • Difficulty stopping urination or loss of control of bladder or bowels.
  • Unexplained fever, nausea or vomiting.
  • A history of cancer or unexplained weight loss.

We understand that you are experiencing one or more of the health issues that might be impacting your back pain.

We recommend that you discuss these health issues with your doctor before proceeding with this program.

Once you are cleared by your doctor to do this program, we hope it helps you find relief from your back pain.

Provider photo for Jonathan Volk

Jonathan Volk, MD

Infectious Diseases

Welcome to My Doctor Online, a web site that my colleagues and I developed to make it easier for you to take care of your healthcare needs. On this site you will find answers to many of your questions about my clinical practice. Also included are several online features that will allow you to e-mail me, check your laboratory results and refill prescriptions. I hope you find its content informative and useful.

My Offices

San Francisco Medical Center
Appt/Advice: 415-833-2200

See all office information »

subContentURL_nobackslash = offices/

firstActiveTabUrlFragment = resources/dc/conditionlist

subContentURL_nobackslash = offices

JSP2Include = /mdo/presentation/providers/officedirections/officedirections.jsp?nocache=true

Offices and Directions

San Francisco Medical Center

Department Internal Medicine
  • 4th Floor
  • 2238 Geary Blvd
  • San Francisco, CA 94115
Phone numbers Appt/Advice
415-833-2203 (Spanish)
415-833-2239 (Chinese)
415-833-8151 (Prescription Refills)

See also
Image of the map
Content loading spinner