Siemens Clinical Laboratory

Siemens Clinical Laboratory (SCL) is an expert, CLIA-accredited clinical laboratory leading the way in innovative, high-complexity testing solutions to advance personalized medicine.

Siemens Healthcare Diagnostics, Berkeley, California

A wholly owned entity of Siemens Healthcare Diagnostics Inc. and based in Berkeley, California, SCL is uniquely positioned to provide high-complexity testing services for referring laboratory customers and innovative laboratory developed test (LDT) development to help pharmaceutical companies realize the potential of companion diagnostics. SCL has been certified under the Clinical Laboratory Improvement Amendments (CLIA) since 1994, accredited through the College of American Pathologists (CAP), and licensed in all U.S. states that require state-specific licensing. SCL has been a provider of accurate, reliable reference and back-up testing services for Siemens U.S. laboratory customers for over 18 years.

Golden Gate Bridge

As an active participant in the California clinical laboratory community, SCL also provides:

  • Professional, continuing education to support relicensure requirements for Clinical Laboratory Scientists
  • Formal, California state-sponsored internship programs for the licensure of Clinical Genetic Molecular Biologist Scientists.


SCL has a growing track record of partnerships with pharmaceutical companies for companion diagnostics solutions, including ViiV Healthcare and Tocagen Inc. and continues to pursue leading-edge co-development opportunities.


“Our partnership with Siemens Healthcare Diagnostics is a valuable part of our commitment to addressing patient needs through developing innovative treatment approaches,” says Dr. John Pottage, Chief Scientific and Medical Officer, ViiV Healthcare. Dr. Harry E. Gruber, CEO of Tocagen Inc., agrees. “We believe that developing the necessary diagnostic tests with the right diagnostic partner is an important component for [our] successful commercialization.”

CLIA Licensing & Accreditation

The entire team at Siemens Clinical Laboratory (SCL) is dedicated to quality and safety as we understand that these are key components of our partners’ and customers’ success.


SCL operates in accordance with the highest levels of quality and community ethics and is in compliance with all applicable governing laws, including but not limited to the Clinical Laboratory Improvement Amendments (CLIA) through the College of American Pathologists (CAP). The SCL Compliance Plan was developed under the guidance of state and federal authorities.

SCL’s Medical Director, Patrick Joseph, MD, is a Fellow of the Infectious Disease Society of America, a Fellow of the Society of Healthcare Epidemiologists of America, a practicing physician, a lead inspector for CAP accreditation, and has been a licensed medical director of clinical laboratories (all states) for almost 20 years.

License/Accreditation & Regulatory Certification

Reference & ID Numbers



College of American Pathologists (CAP)

Lap Number: 6855801

AU-ID: 1112884

Medical Director - William P. Joseph, M.D.


NY State Certificate of Qualification





Clinical Chemistry, Diagnostic Immunology, Endocrinology, Oncology, Transplant Monitoring, Virology, CQ Code: JOSEW1

Continuing Education

Clinical Laboratory Science, LFS Registration Number: 0152



State Certification



Clinical Laboratory License, Lab ID Number: CLF 00010781

West Virginia

Certificate of Approval To Perform HIV / AIDS-Related Testing

Rhode Island

Clinical Laboratory Certification, Approved Specialty  - MICROBIOLOGY, Virology, License Number: LCO00477


Clinical Laboratory Permit, Authorized Categories: Virology, Laboratory Identification Number: 023005A

New York

Clinical Laboratory Permit - Virology, Comprehensive (limited to molecular techniques), PFI: 4995


Medical Laboratory Permit - Molecular Biology, Number 733, Control 45847


Clinical Laboratory Authorization: Virology, Certificate #92863

Quality & Compliance Policies

Siemens Clinical Lab’s (SCL) unwavering, proven commitments to quality and compliance are reflected in our relentless focus on excellence; the ongoing, cutting-edge training of our teams; and our development and refinement of the latest test technologies. These core components of our approach to personalized medicine mean our partners and customers can rely on the highest possible standards of both quality and compliance to support their companion diagnostics and clinical laboratory needs.

Quality Assurance—Every step of the way

SCL’s demand for the highest quality in everything we do means you can count on the SCL teams, processes, and technologies to support your companion diagnostics and clinical laboratory needs at the highest level, every step of the way. We believe our total commitment to quality drives the continuous improvement of our services, and that this commitment is essential to our success—and to the success of our partners and customers.


Comprehensive Compliance—Always

Every aspect of SCL’s operations is in full compliance with all applicable federal, state, and local regulations. Comprehensive internal review processes ensure that full compliance never wavers and is something all partners and customers of SCL can rely on. Complete credentials for SCL’s federal, state, and local compliance measures are available here.


Protecting Privacy—Putting patients first

The confidentiality of patients’ medical information is of the utmost importance to SCL. We employ—and constantly monitor and update—the very latest processes and technologies in order to safeguard this information. In addition, SCL operates in full compliance with HIPAA and HITECH requirements.

Contact us

For more information or questions regarding Siemens Clinical Laboratory operations, as well as SCL quality and compliance policies and credentials, please leave inquiries at our Customer Service Center: 1-800-434-2447.