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 Daniel Klein

Daniel Klein, 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 Leandro Medical Center
Appt/Advice: 510-454-2700

See all office information »

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I joined Kaiser Permanente in 1983. I am the Chief of Infectious Diseases for the Hayward-Fremont hospital and past chair of Kaiser's Regional HIV Committee. For more than 25 years, I have been involved in the care of HIV-infected individuals, beginning with my training in Infectious Disease at San Francisco General in the late 70s, several years before the first reports of HIV disease.

In the early years of the epidemic, when asked why I got involved in caring for patients for whom we had so little to offer, I replied that it was the “right thing to do.” In recent years, we’ve seen near miraculous advances in our ability to transform HIV from a mostly fatal disease to a chronic, manageable condition. We at Kaiser Permanente have among the best record in caring for HIV. I am particularly proud of having championed the multi-disciplinary model of HIV care in the region. I am fortunate to work with a dedicated team, relying greatly on the assistance of my HIV coordinator, clinical pharmacist, social worker, nutritionist and medical assistant.

I have published and presented a number of studies on HIV and AIDS and continue to do research on new therapeutic agents and complications of the disease. I am a member of the Infectious Disease Society of America and the International AIDS Society. I am also certified in HIV medicine. I was the recipient of the Morris F. Collen Research Award in 2004 for my work on the association between HIV disease and heart disease.

If you are a Kaiser Permanente member diagnosed with HIV, a referral from Medicine is not required. Please call our department directly for an HIV intake appointment. A referral is required for all other Infectious Disease issues.



Medical EducationCornell University School of Medicine,
New York, NY
InternshipUniversity of New Mexico,
Albuquerque, NM
ResidencyUC San Francisco,
San Francisco, CA
FellowshipSan Francisco General Hospital Medical Center,
San Francisco, CA
Board CertificationInternal Medicine,
American Board of Internal Medicine
Board CertificationInfectious Disease,
American Board of Internal Medicine
Hospital Admitting PrivilegesFremont Medical Center
San Leandro Medical Center
License Type
State of Issue
Doctor of Medicine
08/31/2019 00:00:00

Other Information

Accepting New Patients StatusAccepting new patients, referral may be required
Languages SpokenEnglish
Interpreters are available upon request. Learn more at the Interpreter Services Information page
National Provider Identifier1245318096
Plan AffiliationProviders listed on the Kaiser Permanente Provider Directory are available to most members.
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Sidney N. Garfield Research Award 2004


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