Quick answers
- Where is Mount San Antonio Gardens?
- 900 E. Harrison Ave, Pomona, CA 91767, in Los Angeles County, California.
- What is the phone number of Mount San Antonio Gardens?
- (909) 624-5061, as listed by Medicare (CMS).
- What is the Medicare star rating of Mount San Antonio Gardens?
- Medicare overall rating: 5 out of 5 stars (CMS data updated 2026-10-01).
- Has Mount San Antonio Gardens been fined?
- Medicare lists no fines for Mount San Antonio Gardens.
- What did inspectors find at Mount San Antonio Gardens?
- In its last three inspection cycles (May 16, 2024 to June 24, 2026), Medicare lists 14 health citations; the most serious was level E. See the list below (CMS data updated 2026-10-01).
Medicare ratings, explained
Star ratings are one piece of information. Visit, ask questions and talk with your doctor about what matters for your care.
Inspections, fines and staffing
In its last three inspection cycles (May 16, 2024 to June 24, 2026), Mount San Antonio Gardens had 14 health citations; the most serious was level E (no actual harm, potential for more than minimal harm). Medicare lists no fines or payment denials for it in the last three years. Nurse staffing is 6.55 hours per resident per day; the California average is 4.54 and the national average is 3.90.
Source: Medicare (CMS) Provider Data Catalog, data updated October 1, 2026, retrieved November 13, 2026.
Inspection history: last three cycles
State inspectors visit about once a year and also investigate complaints. Each citation (deficiency) has a tag number and a letter, A to L. The letter shows how serious the problem was and how many residents it affected.
What the letters A to L mean
| Seriousness | Isolated (a few residents) | Pattern (some) | Widespread (many) |
|---|---|---|---|
| No actual harm, potential for minimal harm | A | B | C |
| No actual harm, potential for more than minimal harm | D | E | F |
| Actual harm to residents | G | H | I |
| Immediate jeopardy to resident health or safety | J | K | L |
Source: the scope and severity grid Medicare (CMS) uses for nursing home citations.
Most recent cycle: June 24, 2026 — 6 health citations
Inspections in this cycle: January 22, 2026 (complaint investigation); June 24, 2026 (standard health inspection).
Show 6 citations (levels A to F, no actual harm)
F0689 Level E
“Ensure that a nursing home area is free from accident hazards and provides adequate supervision to prevent accidents.”
F0695 Level E
“Provide safe and appropriate respiratory care for a resident when needed.”
F0880 Level E
“Provide and implement an infection prevention and control program.”
F0655 Level D
“Create and put into place a plan for meeting the resident's most immediate needs within 48 hours of being admitted”
F0925 Level D
“Make sure there is a pest control program to prevent/deal with mice, insects, or other pests.”
F0689 Level D
“Ensure that a nursing home area is free from accident hazards and provides adequate supervision to prevent accidents.”
Previous cycle: May 30, 2025 — 4 health citations
Inspections in this cycle: May 30, 2025 (standard health inspection).
Show 4 citations (levels A to F, no actual harm)
F0684 Level D
“Provide appropriate treatment and care according to orders, resident’s preferences and goals.”
F0690 Level D
“Provide appropriate care for residents who are continent or incontinent of bowel/bladder, appropriate catheter care, and appropriate care to prevent urinary tract infections.”
F0700 Level D
“Try different approaches before using a bed rail. If a bed rail is needed, the facility must (1) assess a resident for safety risk; (2) review these risks and benefits with the resident/representative; (3) get informed consent; and (4) Correctly install and maintain the bed rail.”
F0842 Level D
“Safeguard resident-identifiable information and/or maintain medical records on each resident that are in accordance with accepted professional standards.”
Earlier cycle: May 16, 2024 — 4 health citations
Inspections in this cycle: May 16, 2024 (standard health inspection).
Show 4 citations (levels A to F, no actual harm)
F0812 Level E
“Procure food from sources approved or considered satisfactory and store, prepare, distribute and serve food in accordance with professional standards.”
F0641 Level D
“Ensure each resident receives an accurate assessment.”
F0684 Level D
“Provide appropriate treatment and care according to orders, resident’s preferences and goals.”
F0880 Level D
“Provide and implement an infection prevention and control program.”
Citation descriptions are Medicare’s official wording. “From a complaint” means the citation came from a complaint investigation instead of the regular yearly inspection.
Full inspection reports on Medicare Care Compare →
Fire safety citations (11)
K0345 Level F
“Have approved installation, maintenance and testing program for fire alarm systems.”
K0353 Level E
“Inspect, test, and maintain automatic sprinkler systems.”
K0923 Level D
“Have proper medical gas storage and administration areas.”
K0345 Level F
“Have approved installation, maintenance and testing program for fire alarm systems.”
K0353 Level F
“Inspect, test, and maintain automatic sprinkler systems.”
K0355 Level E
“Properly select, install, inspect, or maintain portable fire extinguishes.”
K0363 Level D
“Install corridor and hallway doors that block smoke.”
E0041 Level F
“Implement emergency and standby power systems.”
K0918 Level F
“Have generator or other power source capable of supplying service within 10 seconds.”
K0920 Level E
“Ensure proper usage of power strips and extension cords.”
K0753 Level D
“Have restrictions on the use of highly flammable decorations.”
Staffing
Hours of nursing care per resident per day, from the payroll records nursing homes send to Medicare, next to the state and national averages.
| Measure | This home | California | National |
|---|---|---|---|
| Registered nurse (RN) hours per resident per day | 0.70 | 0.68 | 0.69 |
| Licensed practical nurse (LPN) hours per resident per day | 1.72 | 1.20 | 0.86 |
| Nurse aide hours per resident per day | 4.13 | 2.66 | 2.35 |
| Total nurse staff hours per resident per day | 6.55 | 4.54 | 3.90 |
| Total nurse staff hours per resident per day on the weekend | 5.60 | 4.10 | 3.43 |
| RN hours per resident per day on the weekend | 0.64 | 0.52 | 0.48 |
Source: Medicare (CMS) Provider Information and State US Averages, data updated October 1, 2026.
Owners and operator
Legal business name: Congregational Homes.
Owners and managers Medicare lists (7)
| Name | Role | Share | Since |
|---|---|---|---|
| Congregational Homes | Direct owner | 100% | June 9, 2007 |
| Citrus Pharmacy | Partner | NOT APPLICABLE | August 1, 2025 |
| Robert Marriott Medical Corp | Partner | NOT APPLICABLE | January 1, 2024 |
| Citrus Pharmacy | Management company (operational or managerial control) | NOT APPLICABLE | August 1, 2025 |
| Congregational Homes | Management company (operational or managerial control) | NOT APPLICABLE | June 9, 2007 |
| Robert Marriott Medical Corp | Management company (operational or managerial control) | NOT APPLICABLE | January 1, 2024 |
| Wipfli LLP | Management company (operational or managerial control) | NOT APPLICABLE | January 1, 2025 |
Source: Medicare (CMS) Ownership file, data updated October 1, 2026. Only owners with an ownership interest and management companies are shown.
Compare with other nursing homes
Key facts
| Type | Nursing home |
|---|---|
| Certified beds | 64 |
| Average residents per day | 38.9 |
| Takes part in | Medicare |
| Ownership | Non-profit – corporation |
| Legal business name | Congregational Homes |
| First approved by Medicare/Medicaid | 1967-01-01 |
| Part of a continuing care retirement community | Yes |
| Resident and family councils | Resident and family councils |
| Sprinklers in all required areas | Yes |
| Changed ownership in the last 12 months | No |
| Address | 900 E. Harrison Ave, Pomona, CA 91767 |
| County | Los Angeles County |
| State | California |
| Phone | (909) 624‑5061 |
| CMS Certification Number | 055016 |
| Name in Medicare records | MOUNT SAN ANTONIO GARDENS |
| Corrections | Report an error or suggest an update → |
What to ask when you call or visit
A general checklist for any nursing home, not advice about this one. Medicare also publishes guides on medicare.gov.
- Is the home certified by Medicare and/or Medicaid, and does it have a bed for the care you need (short-term rehab or long-term care)?
- Can you see the latest state inspection report? Ask how any problems found were fixed.
- How many nurses and aides work on each shift, at night and on weekends? Is there a registered nurse on site at all times?
- Which doctors see residents, and how often? What happens in a medical emergency, and which hospital is used?
- What therapy (physical, occupational, speech) is offered, and how many days a week?
- Are residents clean, dressed and taking part in activities? Do staff speak to them kindly and answer call lights quickly?
- What do the daily rate and extra services cost, and what do Medicare, Medicaid or your insurance pay? Ask for it in writing.
- Is there a resident council and a family council? How are complaints handled? Ask for the long-term care ombudsman’s contact.
- Are meals appetizing, and can the home meet special diets, language needs and religious or cultural preferences?
- Visit more than once, including at a mealtime or in the evening, without an appointment.
Other nursing homes nearby
By straight-line distance (not driving distance).
- Pilgrim Place Health Services Center0.6 mi · Claremont, CA · 3 of 5 stars
- Claremont Manor Care Center0.6 mi · Claremont, CA · 3 of 5 stars
- Claremont Care Center0.8 mi · Pomona, CA · 5 of 5 stars
- Landmark Medical Center1.2 mi · Pomona, CA · 3 of 5 stars
- Claremont Heights Post Acute1.5 mi · Claremont, CA · 3 of 5 stars
Nearest hospital emergency rooms
- Pomona Valley Hospital Medical Center1.6 mi · Pomona, CA · Acute Care Hospital
- Montclair Hospital Medical Center3.0 mi · Montclair, CA · Acute Care Hospital
- San Dimas Community Hospital5.4 mi · San Dimas, CA · Acute Care Hospital
Sources
- Provider Information — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-01, retrieved 2026-11-13
- Medicare Care Compare — official Medicare profile of this provider
- Health Deficiencies — CMS, data updated 2026-10-01, retrieved 2026-11-13
- Fire Safety Deficiencies — CMS, data updated 2026-10-01, retrieved 2026-11-13
- Penalties — CMS, data updated 2026-10-01, retrieved 2026-11-13
- Ownership — CMS, data updated 2026-10-01, retrieved 2026-11-13
- State US Averages — CMS, data updated 2026-10-01, retrieved 2026-11-13
- Survey Summary — CMS, data updated 2026-10-01, retrieved 2026-11-13
- Citation Code Look-up — CMS, data updated 2026-10-01, retrieved 2026-11-13
- Inspection Dates — CMS, data updated 2026-10-01, retrieved 2026-11-13