Diamond Ridge Healthcare Center
Pittsburg, Contra Costa County, California · CCN 555287 · For-profit (LLC) · part of David Johnson (48 facilities, chain average 3.2 stars)
CMS rates Diamond Ridge Healthcare Center 2 of 5 overall as of August 2026. 120 certified beds, 113 residents a day on average. 48 citations on record from the current inspection cycles, 1 at immediate jeopardy; 1 fine totalling $42,033.
CMS’s ratings
The Five-Star Quality Rating System, as CMS publishes it. Where CMS gives no rating, the reason CMS gives is printed instead.
| Overall | ★★☆☆☆ 2 of 5 |
|---|---|
| Health inspections | ★★☆☆☆ 2 of 5 |
| Staffing | ★★★★☆ 4 of 5 |
| Quality measures | ★★★★☆ 4 of 5 |
| Quality: long-stay / short-stay | 5 / 4 of 5 |
Staffing
| Total nurse staffing | 4.29915 hours per resident per day |
|---|---|
| Registered nurses | 0.49044 hours per resident per day |
| Weekend total | 3.96325 hours per resident per day |
| Nursing staff turnover | 24.6% (registered nurses 52.9%) |
| Administrators who left | 0 |
Citations from health inspections
Each is a finding by a state surveyor on the date shown, in CMS’s words. The severity is CMS’s scope-and-severity grid, spelled out: harm on the left, how widespread on the right.
| Survey | Finding | Severity | Status |
|---|---|---|---|
| 2026-01-16 complaint survey |
Honor the resident's right to a dignified existence, self-determination, communication, and to exercise his or her rights. Resident Rights Deficiencies · tag F0550 |
D No actual harm, with potential for more than minimal harm; isolated | Deficient, Provider has date of correction 2026-02-06 |
| 2026-01-16 complaint survey |
Ensure that a nursing home area is free from accident hazards and provides adequate supervision to prevent accidents. Quality of Life and Care Deficiencies · tag F0689 |
D No actual harm, with potential for more than minimal harm; isolated | Deficient, Provider has date of correction 2026-02-06 |
| 2025-12-29 complaint survey |
Immediately tell the resident, the resident's doctor, and a family member of situations (injury/decline/room, etc.) that affect the resident. Resident Rights Deficiencies · tag F0580 |
D No actual harm, with potential for more than minimal harm; isolated | Deficient, Provider has date of correction 2026-01-14 |
| 2024-08-15 | Procure food from sources approved or considered satisfactory and store, prepare, distribute and serve food in accordance with professional standards. Nutrition and Dietary Deficiencies · tag F0812 |
F No actual harm, with potential for more than minimal harm; widespread | Deficient, Provider has date of correction 2024-09-14 |
| 2024-08-15 | Create and put into place a plan for meeting the resident's most immediate needs within 48 hours of being admitted Resident Assessment and Care Planning Deficiencies · tag F0655 |
E No actual harm, with potential for more than minimal harm; pattern | Deficient, Provider has date of correction 2024-09-14 |
| 2024-08-15 | Provide care and assistance to perform activities of daily living for any resident who is unable. Quality of Life and Care Deficiencies · tag F0677 |
E No actual harm, with potential for more than minimal harm; pattern | Deficient, Provider has date of correction 2024-09-14 |
| 2024-08-15 | Provide and implement an infection prevention and control program. Infection Control Deficiencies · tag F0880 |
E No actual harm, with potential for more than minimal harm; pattern | Deficient, Provider has date of correction 2024-09-14 |
| 2024-08-15 | Encode each resident’s assessment data and transmit these data to the State within 7 days of assessment. Resident Assessment and Care Planning Deficiencies · tag F0640 |
D No actual harm, with potential for more than minimal harm; isolated | Deficient, Provider has date of correction 2024-09-14 |
| 2024-08-15 complaint survey |
Provide the appropriate treatment and services to a resident who displays or is diagnosed with dementia. Quality of Life and Care Deficiencies · tag F0744 |
D No actual harm, with potential for more than minimal harm; isolated | Deficient, Provider has date of correction 2024-09-14 |
| 2024-08-15 | Provide pharmaceutical services to meet the needs of each resident and employ or obtain the services of a licensed pharmacist. Pharmacy Service Deficiencies · tag F0755 |
D No actual harm, with potential for more than minimal harm; isolated | Deficient, Provider has date of correction 2024-09-14 |
| 2024-08-15 | Implement gradual dose reductions(GDR) and non-pharmacological interventions, unless contraindicated, prior to initiating or instead of continuing psychotropic medication; and PRN orders for psychotropic medications are only used when the medication is necessary and PRN use is limited. Pharmacy Service Deficiencies · tag F0758 |
D No actual harm, with potential for more than minimal harm; isolated | Deficient, Provider has date of correction 2024-09-14 |
| 2024-08-15 | Ensure 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 Service Deficiencies · tag F0761 |
D No actual harm, with potential for more than minimal harm; isolated | Deficient, Provider has date of correction 2024-09-14 |
| 2024-04-17 complaint survey |
Protect each resident from all types of abuse such as physical, mental, sexual abuse, physical punishment, and neglect by anybody. Freedom from Abuse, Neglect, and Exploitation Deficiencies · tag F0600 |
E No actual harm, with potential for more than minimal harm; pattern | Deficient, Provider has date of correction 2024-05-14 |
| 2023-11-01 complaint survey |
Immediately tell the resident, the resident's doctor, and a family member of situations (injury/decline/room, etc.) that affect the resident. Resident Rights Deficiencies · tag F0580 |
E No actual harm, with potential for more than minimal harm; pattern | Deficient, Provider has date of correction 2023-11-20 |
| 2023-10-17 complaint survey |
Implement gradual dose reductions(GDR) and non-pharmacological interventions, unless contraindicated, prior to initiating or instead of continuing psychotropic medication; and PRN orders for psychotropic medications are only used when the medication is necessary and PRN use is limited. Pharmacy Service Deficiencies · tag F0758 |
E No actual harm, with potential for more than minimal harm; pattern | Deficient, Provider has date of correction 2023-11-13 |
| 2023-10-17 complaint survey |
Ensure each resident receives and the facility provides food prepared in a form designed to meet individual needs. Nutrition and Dietary Deficiencies · tag F0805 |
D No actual harm, with potential for more than minimal harm; isolated | Deficient, Provider has date of correction 2023-11-13 |
| 2023-08-23 complaint survey |
Honor the resident's right to a safe, clean, comfortable and homelike environment, including but not limited to receiving treatment and supports for daily living safely. Resident Rights Deficiencies · tag F0584 |
K Immediate jeopardy to resident health or safety; pattern | Deficient, Provider has date of correction 2023-09-19 |
| 2023-08-23 complaint survey |
Keep all essential equipment working safely. Environmental Deficiencies · tag F0908 |
D No actual harm, with potential for more than minimal harm; isolated | Deficient, Provider has date of correction 2023-09-19 |
| 2022-04-15 | Create and put into place a plan for meeting the resident's most immediate needs within 48 hours of being admitted Resident Assessment and Care Planning Deficiencies · tag F0655 |
E No actual harm, with potential for more than minimal harm; pattern | Deficient, Provider has date of correction 2022-04-30 |
| 2022-04-15 | Provide enough nursing staff every day to meet the needs of every resident; and have a licensed nurse in charge on each shift. Nursing and Physician Services Deficiencies · tag F0725 |
E No actual harm, with potential for more than minimal harm; pattern | Deficient, Provider has date of correction 2022-04-30 |
| 2022-04-15 | Ensure a licensed pharmacist perform a monthly drug regimen review, including the medical chart, following irregularity reporting guidelines in developed policies and procedures. Pharmacy Service Deficiencies · tag F0756 |
E No actual harm, with potential for more than minimal harm; pattern | Deficient, Provider has date of correction 2022-04-30 |
| 2022-04-15 | Ensure food and drink is palatable, attractive, and at a safe and appetizing temperature. Nutrition and Dietary Deficiencies · tag F0804 |
E No actual harm, with potential for more than minimal harm; pattern | Deficient, Provider has date of correction 2022-04-30 |
| 2022-04-15 | Procure food from sources approved or considered satisfactory and store, prepare, distribute and serve food in accordance with professional standards. Nutrition and Dietary Deficiencies · tag F0812 |
E No actual harm, with potential for more than minimal harm; pattern | Deficient, Provider has date of correction 2022-04-30 |
| 2022-04-15 | Provide and implement an infection prevention and control program. Infection Control Deficiencies · tag F0880 |
E No actual harm, with potential for more than minimal harm; pattern | Deficient, Provider has date of correction 2022-04-30 |
| 2022-04-15 | Ensure each resident receives an accurate assessment. Resident Assessment and Care Planning Deficiencies · tag F0641 |
D No actual harm, with potential for more than minimal harm; isolated | Deficient, Provider has date of correction 2022-04-30 |
| 2022-04-15 | Develop 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 Planning Deficiencies · tag F0656 |
D No actual harm, with potential for more than minimal harm; isolated | Deficient, Provider has date of correction 2022-04-30 |
| 2022-04-15 | Provide care and assistance to perform activities of daily living for any resident who is unable. Quality of Life and Care Deficiencies · tag F0677 |
D No actual harm, with potential for more than minimal harm; isolated | Deficient, Provider has date of correction 2022-04-30 |
| 2022-04-15 | Provide safe and appropriate respiratory care for a resident when needed. Quality of Life and Care Deficiencies · tag F0695 |
D No actual harm, with potential for more than minimal harm; isolated | Deficient, Provider has date of correction 2022-04-30 |
| 2022-04-15 | Provide safe, appropriate pain management for a resident who requires such services. Quality of Life and Care Deficiencies · tag F0697 |
D No actual harm, with potential for more than minimal harm; isolated | Deficient, Provider has date of correction 2022-04-30 |
| 2022-04-15 | Provide pharmaceutical services to meet the needs of each resident and employ or obtain the services of a licensed pharmacist. Pharmacy Service Deficiencies · tag F0755 |
D No actual harm, with potential for more than minimal harm; isolated | Deficient, Provider has date of correction 2022-04-30 |
| 2022-04-15 | Implement gradual dose reductions(GDR) and non-pharmacological interventions, unless contraindicated, prior to initiating or instead of continuing psychotropic medication; and PRN orders for psychotropic medications are only used when the medication is necessary and PRN use is limited. Pharmacy Service Deficiencies · tag F0758 |
D No actual harm, with potential for more than minimal harm; isolated | Deficient, Provider has date of correction 2022-04-30 |
| 2022-04-15 | Provide sufficient support personnel to safely and effectively carry out the functions of the food and nutrition service. Nutrition and Dietary Deficiencies · tag F0802 |
D No actual harm, with potential for more than minimal harm; isolated | Deficient, Provider has date of correction 2022-04-30 |
| 2022-04-15 | Keep all essential equipment working safely. Environmental Deficiencies · tag F0908 |
D No actual harm, with potential for more than minimal harm; isolated | Deficient, Provider has date of correction 2022-04-30 |
| 2022-04-15 | Ensure staff are vaccinated for COVID-19 Infection Control Deficiencies · tag F0888 |
C No actual harm, with potential for minimal harm; widespread | Deficient, Provider has date of correction 2022-04-30 |
| 2019-07-18 | Provide and implement an infection prevention and control program. Infection Control Deficiencies · tag F0880 |
E No actual harm, with potential for more than minimal harm; pattern | Deficient, Provider has date of correction 2019-08-18 |
| 2019-07-18 | Honor 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 Rights Deficiencies · tag F0578 |
D No actual harm, with potential for more than minimal harm; isolated | Deficient, Provider has date of correction 2019-08-18 |
| 2019-07-18 | Provide care and assistance to perform activities of daily living for any resident who is unable. Quality of Life and Care Deficiencies · tag F0677 |
D No actual harm, with potential for more than minimal harm; isolated | Deficient, Provider has date of correction 2019-08-18 |
| 2019-07-18 | Provide appropriate treatment and care according to orders, resident’s preferences and goals. Quality of Life and Care Deficiencies · tag F0684 |
D No actual harm, with potential for more than minimal harm; isolated | Deficient, Provider has date of correction 2019-08-18 |
| 2019-07-18 | Assist a resident in gaining access to vision and hearing services. Quality of Life and Care Deficiencies · tag F0685 |
D No actual harm, with potential for more than minimal harm; isolated | Deficient, Provider has date of correction 2019-08-18 |
| 2019-07-18 | Ensure that feeding tubes are not used unless there is a medical reason and the resident agrees; and provide appropriate care for a resident with a feeding tube. Quality of Life and Care Deficiencies · tag F0693 |
D No actual harm, with potential for more than minimal harm; isolated | Deficient, Provider has date of correction 2019-08-18 |
| 2019-07-18 | Provide pharmaceutical services to meet the needs of each resident and employ or obtain the services of a licensed pharmacist. Pharmacy Service Deficiencies · tag F0755 |
D No actual harm, with potential for more than minimal harm; isolated | Deficient, Provider has date of correction 2019-08-18 |
| 2019-07-18 | Ensure a licensed pharmacist perform a monthly drug regimen review, including the medical chart, following irregularity reporting guidelines in developed policies and procedures. Pharmacy Service Deficiencies · tag F0756 |
D No actual harm, with potential for more than minimal harm; isolated | Deficient, Provider has date of correction 2019-08-18 |
| 2019-07-18 | Ensure each resident’s drug regimen must be free from unnecessary drugs. Pharmacy Service Deficiencies · tag F0757 |
D No actual harm, with potential for more than minimal harm; isolated | Deficient, Provider has date of correction 2019-08-18 |
| 2019-07-18 | Ensure 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 Service Deficiencies · tag F0761 |
D No actual harm, with potential for more than minimal harm; isolated | Deficient, Provider has date of correction 2019-08-18 |
| 2019-07-18 | Provide timely, quality laboratory services/tests to meet the needs of residents. Administration Deficiencies · tag F0770 |
D No actual harm, with potential for more than minimal harm; isolated | Deficient, Provider has date of correction 2019-08-18 |
| 2019-07-18 | Provide each resident with a nourishing, palatable, well-balanced diet that meets his or her daily nutritional and special dietary needs. Nutrition and Dietary Deficiencies · tag F0800 |
D No actual harm, with potential for more than minimal harm; isolated | Deficient, Provider has date of correction 2019-08-18 |
| 2019-07-18 | Procure food from sources approved or considered satisfactory and store, prepare, distribute and serve food in accordance with professional standards. Nutrition and Dietary Deficiencies · tag F0812 |
D No actual harm, with potential for more than minimal harm; isolated | Deficient, Provider has date of correction 2019-08-18 |
| 2019-07-18 | Safeguard resident-identifiable information and/or maintain medical records on each resident that are in accordance with accepted professional standards. Resident Assessment and Care Planning Deficiencies · tag F0842 |
D No actual harm, with potential for more than minimal harm; isolated | Deficient, Provider has date of correction 2019-08-18 |
Fines and payment denials
| Date | Penalty | Amount |
|---|---|---|
| 2023-08-23 | Fine | $42,033 |
Who owns and runs it
Every owner, officer and manager CMS lists, as filed. These are the names in CMS’s ownership record; anyone named in the ownership record can ask about it on the about page.
| Name | Role | Share | Since |
|---|---|---|---|
| Diamond Ridge Post Acute LLC Organization | 5% or greater direct ownership interest | 100% | 2022-02-03 |
| Diamond Ridge Post Acute LLC Organization | adp of the snf | — | 2022-02-03 |
| Smv Pittsburg LLC Organization | adp of the snf | — | 2005-01-01 |
| Sun Meridian Management Services LLC Organization | adp of the snf | — | 2021-03-22 |
| Diamond Ridge Post Acute LLC Organization | operational/managerial control | — | 2022-02-03 |
| Dehghanmanesh, Adrian Individual | adp of the snf | — | 2021-06-01 |
| Farrales, Mary Individual | adp of the snf | — | 2023-01-01 |
| Johnson, David Individual | adp of the snf | — | 2021-02-11 |
| Kochek, Joshua Individual | adp of the snf | — | 2022-04-01 |
| Ng, Andrew Individual | adp of the snf | — | 2025-07-15 |
| Oxford, Micheal Individual | adp of the snf | — | 2022-01-03 |
| Viloria, Harriet Individual | adp of the snf | — | 2024-10-12 |
| Dehghanmanesh, Adrian Individual | corporate officer | — | 2021-06-01 |
| Johnson, Frank Individual | corporate officer | — | 2021-02-11 |
| Dehghanmanesh, Adrian Individual | operational/managerial control | — | 2021-06-01 |
| Johnson, David Individual | operational/managerial control | — | 2021-02-11 |
| Johnson, Frank Individual | operational/managerial control | — | 2021-02-11 |
| Kochek, Joshua Individual | operational/managerial control | — | 2022-04-01 |
| Oxford, Micheal Individual | operational/managerial control | — | 2022-01-03 |
What changed
Nothing has changed in this record since it was first loaded. The next CMS refresh is the next chance.
Tell me when this record changes
One email when the monthly CMS refresh brings a new citation, a fine or payment denial, a rating change, a flag, or a change of ownership for Diamond Ridge Healthcare Center.
Source: Centers for Medicare & Medicaid Services, Provider Data Catalog (public domain), files dated 2026-08-01. Ratings are CMS’s; citations are state surveyors’ findings; nothing here is estimated or a recommendation. Every nursing home in Contra Costa County.