Map showing the location of Grossmont Gardens Healthcare Center in LA MESA, California
5480 Marengo Ave, LA MESA, CA, 91942

Overall Score

CMS Five-Star Quality Rating
Not ratedCMS Five-Star overall rating
  1. Much below average
  2. Below average
  3. Average
  4. Above average
  5. Much above average

Where it ranks

CMS has not published a rating for this facility, so there is no peer position to show.

How the rating is built

  • Health inspectionsStarting point
  • StaffingCan add or remove a star
  • Quality measuresCan add or remove a star

CMS withholds a rating when a facility is new, has too little inspection history, or is under review.

Ratings & measures

Tap a row to see what it means
Health inspection ratingCMS stars from the last three on-site inspection cyclesNo dataCA avg2.8★U.S. avg2.8★
What is health inspection rating?

Stars assigned from the last three standard surveys and every complaint investigation in that window, weighted toward the most recent and the most serious findings. CMS assigns these stars relative to other facilities in the same state.

Why it matters

It carries the most weight in the overall rating and is the only domain based on what trained inspectors saw on site rather than what the facility reported.

Staffing ratingCMS stars from payroll-reported hours and turnoverNo dataCA avg3.3★U.S. avg2.9★
What is staffing rating?

Nurse and aide hours per resident day from payroll records CMS collects every quarter, adjusted for how much care residents need, plus staff turnover and weekend coverage.

Why it matters

More hours and lower turnover are the strongest predictors of fewer falls, pressure sores, and avoidable hospital stays.

Quality measures ratingCMS stars from clinical outcomes and resident assessmentsNo dataCA avg4.1★U.S. avg3.6★
What is quality measures rating?

Clinical outcomes from resident assessments and Medicare claims: falls with injury, pressure ulcers, hospitalizations, antipsychotic use, and more, for both short-stay and long-stay residents.

Why it matters

It shows whether care is working, but part of it comes from the facility’s own assessments, so read it alongside the inspection results.

Total nurse hoursPer resident per day, all nursing staffhrsNo dataCA avg4.51Benchmark4.10
What is total nurse hours?

All licensed nurse and aide hours worked, divided by the number of residents, on an average day. Reported from payroll, not self-reported.

Why it matters

Federal research links 4.1 hours a day to fewer avoidable harms. Below about 3 hours, residents wait longer for help with basics like toileting and repositioning.

RN hoursPer resident per day, registered nurses onlyhrsNo dataCA avg0.67Benchmark0.75
What is rn hours?

Registered nurse hours only. RNs assess residents, manage medications, and catch changes in condition; LPNs and aides deliver most hands-on care.

Why it matters

RN coverage is the staffing measure most tied to fewer hospital transfers and infections, and it is where thinly staffed facilities cut first.

Nursing staff turnoverShare of nursing staff who left within a year · lower is betterNo dataCA avg37%RN turnover
What is nursing staff turnover?

The share of nursing staff who left within the past year, from the same payroll data.

Why it matters

High turnover means residents are cared for by people who do not know them, and it is one of the strongest predictors of inspection problems.

Fines in the last three yearsCivil money penalties imposed by CMS · lower is better$0Above only 41% of peersCA avg$24,624Fines · denials0 · 0
What is fines in the last three years?

Civil money penalties CMS imposed after serious or uncorrected deficiencies, and denials of Medicare payment for new admissions.

Why it matters

Penalties follow the worst inspection findings. A recent fine is the clearest sign that inspectors found real harm.

Inspection history

Last three inspection cycles
16citations
1inspection dates
0actual harm (G–I)
0immediate jeopardy (J–L)
Feb 12, 2026most recent

Citations by monthFeb 2026

  • No actual harm (D–F)
  • Actual harm (G–I)
  • Immediate jeopardy (J–L)
  • $Fine or payment denial

Click a month or a year to filter the findings below. Arrow keys move between months; Esc clears.

Feb 12, 202616 citationsCycle 1worst E · no actual harm
  1. F0578Honor the resident's right to request, refuse, and/or discontinue treatment, to participate in or refuse to participate in experimental research, and to formulate an advance directive.Resident RightsE · patternCorrected Mar 16, 2026
  2. F0656Develop and implement a complete care plan that meets all the resident's needs, with timetables and actions that can be measured.Resident Assessment and Care PlanningE · patternCorrected Mar 16, 2026
  3. F0812Procure food from sources approved or considered satisfactory and store, prepare, distribute and serve food in accordance with professional standards.Nutrition and DietaryE · patternCorrected Mar 16, 2026
  4. F0557Honor the resident's right to be treated with respect and dignity and to retain and use personal possessions.Resident RightsD · isolatedCorrected Mar 16, 2026
  5. F0605Prevent the use of unnecessary psychotropic medications or use medications that may restrain a resident's ability to function.Freedom from Abuse, Neglect, and ExploitationD · isolatedCorrected Mar 16, 2026
  6. F0686Provide appropriate pressure ulcer care and prevent new ulcers from developing.Quality of Life and CareD · isolatedCorrected Mar 16, 2026
  7. F0755Provide pharmaceutical services to meet the needs of each resident and employ or obtain the services of a licensed pharmacist.Pharmacy ServiceD · isolatedCorrected Mar 16, 2026
  8. F0759Ensure medication error rates are not 5 percent or greater.Pharmacy ServiceD · isolatedCorrected Mar 16, 2026
  9. F0761Ensure drugs and biologicals used in the facility are labeled in accordance with currently accepted professional principles; and all drugs and biologicals must be stored in locked compartments, separately locked, compartments for controlled drugs.Pharmacy ServiceD · isolatedCorrected Mar 16, 2026
  10. F0801Employ sufficient staff with the appropriate competencies and skills sets to carry out the functions of the food and nutrition service, including a qualified dietician.Nutrition and DietaryD · isolatedCorrected Mar 16, 2026
  11. F0805Ensure each resident receives and the facility provides food prepared in a form designed to meet individual needs.Nutrition and DietaryD · isolatedCorrected Mar 16, 2026
  12. F0810Provide special eating equipment and utensils for residents who need them and appropriate assistance.Nutrition and DietaryD · isolatedCorrected Mar 16, 2026
  13. F0842Safeguard resident-identifiable information and/or maintain medical records on each resident that are in accordance with accepted professional standards.Resident Assessment and Care PlanningD · isolatedCorrected Mar 16, 2026
  14. F0865Have a plan that describes the process for conducting QAPI and QAA activities.AdministrationD · isolatedCorrected Mar 16, 2026
  15. F0880Provide and implement an infection prevention and control program.Infection ControlD · isolatedCorrected Mar 16, 2026
  16. F0909Regularly inspect all bed frames, mattresses, and bed rails (if any) for safety; and all bed rails and mattresses must attach safely to the bed frame.EnvironmentalD · isolatedCorrected Mar 16, 2026

Staffing

From quarterly payroll reports

Hours per resident per day

  • All nursing staffRNs, LPNs and aides combinedhrs
  • Registered nursesRN hours onlyhrs
  • Licensed practical nursesLPN hourshrs
  • Nurse aidesCNA hourshrs
  • Weekend nursingAll staff on Saturdays and Sundayshrs
  • California average
  • Research benchmark (4.10 total, 0.75 RN)

Turnover & capacity

  • Nursing staff turnoverShare who left within a year · lower is betterCA avg 37%
  • RN turnoverRegistered nurses onlyNot ranked by CMS
  • Administrators who leftIn the past year
  • Occupancy— certified bedsCA avg 89%

Fines & penalties

Roughly the past three years

Enforcement summary

  • $0In fines
  • 0Fines
  • 0Payment denials
  • $24,624CA avg in fines
Above only 41% of peersFewer fines than 41% of rated homes in California

Actions on record

No fines or payment denialsNothing on record in the current reporting window. California facilities average 1.1 penalties.

Ownership

As filed with CMS

Structure

Ownership type
For profit - Corporation
Chain
Independent
Certification
Medicare and Medicaid
Location type
Urban
Ownership change
None in the last 12 months

People and entities on file

Direct owners (5%+)
  • James Bender
  • Adrian Lam
  • Donald Lam
  • Manish Shah
Corporate directors
  • James Bender
  • Adrian Lam
  • Donald Lam
  • Manish Shah
Corporate officers
  • James Bender
  • Adrian Lam
  • Donald Lam
  • Manish Shah
Operational or managerial control
  • James Bender

Person Organization

Sources & notes

Public data, updated quarterly

Data sources

  • CMS Care Compare · Provider InformationStar ratings, staffing hours, turnover, penalties and flags · processed August 2026.
  • CMS Health CitationsEvery deficiency from the last three inspection cycles, with scope, severity and inspection cycle.
  • CMS Penalties and Ownership filesCivil money penalties, payment denials, and the owners and managers on file.

Notes

  • CMS Certification Number 555940 · 5480 Marengo Ave, LA MESA, CA, 91942.
  • Percentiles compare this facility with every rated nursing home in California and San Diego County. Turnover and fines are inverted so a high percentile is always good.
  • This is an informational summary of public data, not medical, legal, or placement advice. Facilities cannot pay to change it; a facility that believes a record is wrong can dispute it with CMS.

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