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St. Mary's Hospice, Inc
Hospice Diamond Bar, CA
809 S Lemon Ave, Diamond Bar, CA 91789 · (626) 858-6100
Family caregiver survey ratingNot rated
Hospice Care Index8 of 10
OwnershipFor-Profit
Medicare-certified sinceApr 20, 2016
Average daily census (patients on an average day)18
The Hospice Care Index combines ten claims-based signals of care quality (for example visits near the end of life and gaps in nursing visits); 10 is best.
Patients who got visits in the last days of life: 0%
Where it gives care
- At home: 95%
- Skilled nursing facility: 5%
Areas it serves
St. Mary's Hospice, Inc lists 39 ZIP codes in its service area, including these cities:
- Los Angeles, CA
- Riverside, CA
- San Bernardino, CA
- Moreno Valley, CA
- Rancho Cucamonga, CA
- Ontario, CA
- Corona, CA
- Pomona, CA
- Rialto, CA
- Indio, CA
- Hemet, CA
- Chino Hills, CA
- Upland, CA
- Lake Elsinore, CA
- Arcadia, CA
- Diamond Bar, CA
- Yucaipa, CA
- Coachella, CA
- Beaumont, CA
- Montclair, CA
- Walnut, CA
- Norco, CA
- South Pasadena, CA
- Blythe, CA
Ratings describe past performance reported to CMS and can change. Confirm insurance, availability and services directly with the provider, and talk to your doctor or care team. Source: CMS Provider Data Catalog, Hospice - General Information; Provider Data; CAHPS Hospice Survey (released Aug 19, 2026).