Lysosomal Storage Disease Center

The UCSF Lysosomal Disease Center provides complete services, including consultation, examination, testing, diagnosis, treatment, and genetic counseling, for patients with lysosomal diseases and their families. These inherited diseases are caused by problems in the lysosomes, compartments in the body's cells that contain enzymes (chemicals that break down other substances). When a particular enzyme is missing or present in only a small amount, various substances are able to build up in the lysosomes. This abnormal build-up, or storage, causes the symptoms of the different lysosomal diseases.

Treatment is currently available for Gaucher disease, Fabry disease and Hurler syndrome.

The center is dedicated to the diagnosis and management of these rare diseases and provides coordinated care by specialists in all areas of medicine. Through the center, caregivers, patients, and their families will have access to experts from the two major university medical centers in Northern California: UCSF and Stanford.

You'll need a referral from your primary care provider or specialist to make an appointment. Once you have the referral, please call the number below.

Getting Here

Lysosomal Disease Center
Ron Conway Family Gateway Medical Building
1825 Fourth St., Sixth Floor
San Francisco, CA 94158
Phone: (866) 476-9997
Fax: (415) 476-9976

Hours: Monday to Friday
9 a.m. – 5 p.m.

What to Bring

  • Health insurance information including authorizations or referrals
  • List of prescription medications and dosages
  • List of medications that you're allergic to
  • List of questions you may have
  • Recent test results related to your condition
  • Paper and pencil to take notes

What to Expect

    During your first visit, you will meet with one of our experts who will conduct a thorough physical examination. He or she also will ask about your symptoms and record your medical history.

    Lab tests, such as blood tests, and imaging tests, such as magnetic resonance imaging (MRI) or computerized tomography (CT) scans may also be recommended or ordered.

Access Your Health Information Online

This clinic uses UCSF MyChart, an online patient service. Message your provider, request medication refills, view some test results and more.

Learn more about UCSF MyChart

Research and Clinical Trials

Special Programs


Parking at Parnassus

Public parking for an hourly fee at UCSF Medical Center is available in the seven-level Millberry Union Garage at 500 Parnassus Ave. There are two garage entrances — one on the north side of Parnassus Avenue and another on Irving Street, just east of Third Avenue.

Another garage with an hourly fee, at 350 Parnassus Ave., is open Monday to Friday from 6 a.m. to 10 p.m.

Metered street parking is rarely available.

Patients being admitted to the hospital may be dropped off at the circular driveway leading to the main entrance at 505 Parnassus Ave. This area also may be used to pick up patients who are being discharged.

For more information about parking at Parnassus, call Campus Parking Services at 476-2566.

Valet Parking Service

Valet parking service is available at the Ambulatory Care Center (ACC) at 400 Parnassus Ave. from 8 a.m. to 3 p.m. The valet service is free but patients must pay regular parking fees. For more information about the valet service, call (415) 476-6200.

A UCSF "greeter" also is available at the ACC from 8 a.m. to 5 p.m. to assist patients find their way.

Public Transportation


UCSF Medical Center is accessible via Muni streetcar line N-Judah*, which stops at Second Avenue and Irving Street, and the following Muni bus lines, which stop in front of the hospital:

  • 43-Masonic*
  • 6-Parnassus

For more information about Muni visit,

* Wheelchair accessible bus routes

Related Information

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Clinics & Centers

Our Team

Renata Gallagher
Renata Gallagher, MD
Pediatric medical geneticist
Bryce Mendelsohn
Bryce Mendelsohn, MD, PhD
Medical geneticist
Marta Sabbadini
Marta Sabbadini, PhD, MS
Genetic counselor