Caring for People, Keeping Them Safe​®
We believe that caring for others always comes first. Every day, we commit ourselves to ensuring the people we care for go home safe to their loved ones.
All our work builds towards one goal — to do the right thing for the people and businesses we serve.
For over 40 years
Fortune 500 companies to small and medium businesses (SMBs)
HAVE ENTRUSTED US
with keeping their workforce safe and compliant
Our Journey

1977

The Foundation — 1st Clinic in Long Beach
Our vision is to provide care-focused occupational healthcare services to workers and businesses, starting with the local Southern California community.
1979
Occupational Healthcare Pioneer
Our first CareOnSite clinic opens in Long Beach, CA, to provide quality occupational healthcare services. We are the first clinic in Southern California with in-house expertise in preventative care, medical surveillance, fitness for duty, and injury care.
1980s
Organic Growth in LA Basin
We expand our services into drug & alcohol testing to meet the needs of the petrochemical, transportation, and manufacturing industries, where we form relationships that continue till today.
1990
New Clinic 4x Larger
To meet increasing demand, we expand to a new, larger facility in Long Beach, CA. Our reputation for quality occupational healthcare attracts new clients in the hospitality and maritime industries.
1995
1st On-site Medical Staffing
ARCO requests that we bring our medical services to their Carson, CA., facility. We address their need by opening our first on-site clinic and working with their health & safety team to develop protocols that meet the requirements of their facility.

1998

ASAPcheck Established for Drug Screening
The growth of our drug & alcohol program administration services leads to the founding of ASAPcheck to better serve clients in the petrochemical and manufacturing industries. Our responsiveness and expert in-house medical review officers (MRO) set us apart from other third-party administrators (TPA).

1999

Consortiums – Improving Safety and Compliance for Clients
We launch our first major initiative with consortiums by providing drug & alcohol program administration for the Los Angeles Clean Card (LACC) consortium.

2004

ASAPcheck Expands to the Gulf Coast
To meet the needs of our clients, ASAPcheck expands operation by opening a Houston office. ASAPcheck's drug & alcohol TPA service is recognized by the North American Substance Abuse Program (NASAP).

2005

OSCAsafe Founded for Safety Training
When long-standing customers come to us for safety training, we establish OSCAsafe to provide quality and informed training programs to the Refinery Safety Overview (RSO) consortium.
2006
Regional Expansion of On-Site Staffing
We expand our on-site medical staffing services to Northern California when five Global 500 petrochemical clients request our services at facilities in the San Francisco Bay area.
2006
Telemedicine Pioneer
We launch one of the first occupational telemedicine services in the country, with two Fortune 100 companies (CA, WA) and a utilities company (CA). Our innovative solution allows these companies to offer better care to underserved locations by providing immediate access to an occupational health specialist.

2016

Medical Staffing Nationwide
We establish a nationwide footprint for our medical staffing services when a multi-national Fortune 100 client expands our on-site staffing to facilities in over 20 states. Today, we provide medical staffing at over 160 locations for many companies in different industries.

2016

Tang+Company — A Single Source for All Your Needs
To better offer our clients a single source for their health and safety needs, we bring our three subsidiaries — CAREonsite, ASAPcheck, and OSCAsafe — together under a restructured Tang+Company corporate umbrella.
2017
A Nationwide Network of Care
Our nationwide network of partner clinics for patient care and drug & alcohol test collection reaches over 4,000 locations across the country.
2020
New Southern CA HQ
We open our new headquarters in Torrance, CA. We bring our administrative offices under one roof to focus on integrating our occupational healthcare, employee screening, and safety services to create the best outcomes for our clients.
Our Medical Leaders
who oversee all we do

Dr. Helen

Medical Director, Co-Founder, & Chairperson (MD, MPH)

For the past 45 years, Dr. Helen’s compassion and drive for quality improvement helped Tang+Company grow into one of the nation’s leading providers of workplace health and safety solutions. Her dedication to person-centered care has continuously provided educational opportunities for team members and expanded care options for clients. As a female executive that grew up in the multiracial melting pot of Singapore, the ideas of equity, diversity, and inclusion are more than a commitment — they are the foundation of her approach to life and work.

Outside of work, she treasures time with family and exploring new culinary experiences with others. She also loves nature and enjoys the outdoors, hiking, and fly-fishing with Dr. Brian, her lifelong partner of over 45 years.

Education

  • Medical school at the University of Singapore.
  • Residency at UC Irvine Medical Center
  • Master of Public Health from UCLA
  • Board-certified in Occupational Medicine

Dr. Brian

Medical Director, Co-Founder, & Chairperson (MD)

Since the beginning, Dr. Brian’s compassion and belief in personalized care have been the cornerstone of Tang+Company’s success and have been instrumental in shaping a care-first philosophy, which continues today. For Dr. Brian, it’s always been about serving people — ever since he worked as a medical missionary in Africa as a young doctor. Today, he proudly provides care alongside the medical team, continues to strengthen teams, and always looks for ways to improve services and solutions for clients and patients across the United States.

Dr. Brian’s life revolves around his family and his love of the outdoors. Those close to him know his passion for fishing and getting others to fish with him. He is truly grateful to Dr. Helen, both personally and professionally, for being an amazing partner who creates a successful work-life balance.

Education

  • Medical school at Johns Hopkins University
  • Residency at Johns Hopkins Hospital
  • Board-certified in Occupational Medicine

Dr Cliff

Dr. Cliff

Medical Director & Co-CEO (MD)

Beyond his work as Co-CEO, Dr. Cliff is passionate about optimizing Tang+Company’s processes and services to the unique needs of its clients. He works closely with medical, operational, and account management teams on process improvement, automation, and data-related optimization of occupational health care delivery. He is instrumental in the creation and continued development of our Electronic Command Center (ECCTM)—a propriety electronic health records and virtual care platform for occupational health care.

Outside of work, Cliff enjoys spending time with his family and is fascinated by how his children have come to command all things snack-related. In his downtime, Cliff enjoys watching the Lakers, discovering fresh powder on his snowboard, and listening to music that is not “Baby Shark.”

Education

  • Medical School at UC Irvine
  • Residency at UCLA Olive View Emergency Medicine
  • Board-certified in Emergency Medicine

Dr. Chris

Medical Director & Co-CEO (MD, MS)

Dr. Chris loves working with the Tang+Company team to develop medical programs that follow the idea of ‘Sine Qua Non’ — doing everything necessary to provide the best outcomes for the patients and businesses he serves. Chris’ expertise is relied upon by 17 Fortune 200 companies, which he serves as a medical consultant. But he is most proud of his work developing an industry-leading care model proven to create better medical results for patients and a return on investment for clients.

Outside of work, Chris is a proud dad of 4 boys and loves cooking steaks for his family and friends while recognizing the importance of a balanced diet. True to this Southern California roots, Chris loves exploring on weekends to find the best spot to jump on his surfboard and catch a wave.

Education

  • Medical School at the Keck School of Medicine of USC
  • Residency in Internal Medicine at Kaiser UCLA, Residency in Occupational Medicine at UC Irvine
  • Masters in Toxicology at UC Irvine
  • Board-certified in Occupational Medicine

A Single Source for All Your Needs
Reduce the ineffectiveness & cost of multiple vendors
Leverage 45+ years of expertise in workplace health, screening, and training to create the best outcomes for you

Improve outcomes for workplace health services with access to quality care wherever your employees are

Simplify the administration of drug, alcohol, & background check programs
Streamline the management of employee training & compliance requirements
What Care Means to Us
Care is not about numbers or formulas; it’s about doing what is right. Every day, we dedicate ourselves to making sure every person we care for goes home safe to the ones they love.
Core
values
Lead with integrity

We want to create partnerships based on trust, which is why we are committed to being honest and transparent in all that we do.

Surpass expectations

We go the extra mile to help you find success. Our mission is to always provide you with the best service because when you thrive, we thrive.

Innovate and continuously improve

We have decades of experience in the early adoption of technologies like telemedicine to deliver impactful health solutions.

Welcome diversity

We believe diversity makes us stronger. We strive for a diverse workforce to foster an ecosystem of creativity and collaboration that produces out-of-the-box solutions for our clients.

Think “we” not “me”

We put the needs of our clients first and believe the best solutions are forged through collaboration and teamwork.

Be a good steward

We believe good stewardship starts with responsibility for all those our work touches. Whether it's your workers, business, or our shared communities, we strive to leave things better than they were.

Help us keep workers safe
Careers at Tang+Company
We believe success comes from caring for others and doing what’s right. Join us in our effort to make sure workers across America can go home healthy and safe to the ones they love.
Certifications, Memberships, & Awards We are Proud of