Our History · Since 2002, California
From knocking on one family's door
to care that bridges two countries
Care Advisor is not a platform that appeared overnight. In California, more than 20 years spent knocking on patients' doors, home by home, grew into one integrated medical service spanning telehealth, senior living, and hospice. And now that experience meets Korea — reaching even more patients and families.
20+ yrs
Of care in the U.S.
4
Specialized care businesses
2 countries
Korea–U.S. care network
Chapter 1
Care that began at home
“Where the hospital ends, our care begins.”
2002
Sierra Home Health Care founded
Began in-home medical visits in Los Angeles, California — the first step of a care model where nurses and therapists go directly to the homes of patients with limited mobility.
2002 ~ Present
20+ years of home health care beside Korean-American families
As a Medicare- and Medi-Cal-certified agency, we expanded home-visit care across Los Angeles, Orange, and San Bernardino counties — and to this day we walk alongside countless Korean-American families on the road to recovery.
Chapter 2
From one care service to integrated medicine
“From recovery through later life to the final moment — taking responsibility for every stage of care.”
2017
Hospice care begins
Added hospice care that accompanies life's final journey with dignity and comfort — widening our care to embrace not only the patient, but the family's heart as well.
2023
Valley Silver Town opens
Opened a senior community in West Hills, California — premium assisted living with state licensure (RCFE) and ALWP certification, offering a vision of ‘aging with dignity.’
2023
Vita Health 365 telehealth launches
Launched a same-day telehealth platform staffed by California-licensed clinicians — adding care that crosses the barriers of time and distance.
2023
Established as an integrated U.S. medical services organization
Grew into Sierra Care Group, a U.S.-based integrated care group spanning home health care, telehealth, senior living, and hospice.
Chapter 3
A guide connecting two countries
“Now, to even more families.”
2024
Korea–U.S. care bridge takes shape
Recognized as a bridge connecting Korean medical and bio companies to the U.S. market, we began working closely with partners in Korea.
2025
Merger with Korea's ‘Amschool’
Merged with Amschool, a Korean cancer-knowledge and patient community platform — 20 years of U.S. field experience meeting Korea's network of patients and family caregivers.
Nov 2025
Integrated care platform ‘Care Advisor’ unveiled
Extended our offline care experience onto an online platform — setting out as a guide to integrated Korea–U.S. care for patients and family caregivers alike.
Today
Caring for patients — and family caregivers, too
Guided by the philosophy that “we care for the family caregiver, not only the patient,” we are building a care network that spans two countries.
Our Vision
Twenty years of experience, within everyone's reach
Care shouldn't belong only to the fortunate few — it should be within reach of every patient and family who needs help.
Twenty years in the field in the U.S. is our credibility; a platform connecting Korea and the U.S. is our next chapter.