Nursing homeActive
Diamond Ridge Healthcare Center
2351 Loveridge Road, Pittsburg, CA 945659254274444120 certified beds · 113 residentsFor profit - Limited Liability companyMedicare and Medicaid
Surveys on file
9
since 2019
Deficiencies
48
● 1● 46● 1
Penalties · 3 yrs
—
none on file
Last survey
2026-01-16
Complaint
CMS overall
2 / 5
stars as published by CMS
CMS overall 2/5
Health 2
Staffing 4
Quality 4
Star ratings as published by CMS · CMS’s caveats
Survey history
Source: CMS · California Department of Public Health · data as of 2026-08-01| Date | Kind | Deficiencies | Official record | Archived PDF |
|---|---|---|---|---|
| 2026-01-16 | Complaint | 020 | CMS-2567 (Care Compare) | — |
| 2025-12-29 | Complaint | 010 | CMS-2567 (Care Compare) | — |
| 2024-08-15 | Standard | 090 | CMS-2567 (Care Compare) | — |
| 2024-04-17 | Complaint | 010 | CMS-2567 (Care Compare) | — |
| 2023-11-01 | Complaint | 010 | CMS-2567 (Care Compare) | — |
| 2023-10-17 | Complaint | 020 | CMS-2567 (Care Compare) | — |
| 2023-08-23 | Complaint | 011 | CMS-2567 (Care Compare) | — |
| 2022-04-15 | Standard | 1150 | CMS-2567 (Care Compare) | — |
| 2019-07-18 | Standard | 0140 | CMS-2567 (Care Compare) | — |
Counts by class: paperwork · standard · harm.
Deficiencies
CMS · California Department of Public Health publishes each citation’s tag, official description and scope/severity letter. The surveyor’s written findings are in the Statement of Deficiencies (CMS-2567) for each survey, linked above.
F550Honor the resident's right to a dignified existence, self-determination, communication, and to exercise his or her rights.Scope/severity DStandard
Dignity & rights
Isolated; no actual harm, potential for more than minimal harm.Corrected 2026-02-06Record 555287-20260116-F550
F689Ensure that a nursing home area is free from accident hazards and provides adequate supervision to prevent accidents.Scope/severity DStandard
Care planningFalls
Isolated; no actual harm, potential for more than minimal harm.Corrected 2026-02-06Record 555287-20260116-F689
F580Immediately tell the resident, the resident's doctor, and a family member of situations (injury/decline/room, etc.) that affect the resident.Scope/severity DStandard
Dignity & rights
Isolated; no actual harm, potential for more than minimal harm.Corrected 2026-01-14Record 555287-20251229-F580
F640Encode each resident’s assessment data and transmit these data to the State within 7 days of assessment.Scope/severity DStandard
Care planningRecords
Isolated; no actual harm, potential for more than minimal harm.Corrected 2024-09-14Record 555287-20240815-F640
F655Create and put into place a plan for meeting the resident's most immediate needs within 48 hours of being admittedScope/severity EStandard
Care planningRecords
Pattern; no actual harm, potential for more than minimal harm.Corrected 2024-09-14Record 555287-20240815-F655
F677Provide care and assistance to perform activities of daily living for any resident who is unable.Scope/severity EStandard
Care planning
Pattern; no actual harm, potential for more than minimal harm.Corrected 2024-09-14Record 555287-20240815-F677
F744Provide the appropriate treatment and services to a resident who displays or is diagnosed with dementia.Scope/severity DStandard
Care planning
Isolated; no actual harm, potential for more than minimal harm.Corrected 2024-09-14Record 555287-20240815-F744
F755Provide pharmaceutical services to meet the needs of each resident and employ or obtain the services of a licensed pharmacist.Scope/severity DStandard
Medication
Isolated; no actual harm, potential for more than minimal harm.Corrected 2024-09-14Record 555287-20240815-F755
F758Implement 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.Scope/severity DStandard
Medication
Isolated; no actual harm, potential for more than minimal harm.Corrected 2024-09-14Record 555287-20240815-F758
F761Ensure 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.Scope/severity DStandard
Medication
Isolated; no actual harm, potential for more than minimal harm.Corrected 2024-09-14Record 555287-20240815-F761
F812Procure food from sources approved or considered satisfactory and store, prepare, distribute and serve food in accordance with professional standards.Scope/severity FStandard
Food & nutrition
Widespread; no actual harm, potential for more than minimal harm.Corrected 2024-09-14Record 555287-20240815-F812
F880Provide and implement an infection prevention and control program.Scope/severity EStandard
Infection control
Pattern; no actual harm, potential for more than minimal harm.Corrected 2024-09-14Record 555287-20240815-F880
F600Protect each resident from all types of abuse such as physical, mental, sexual abuse, physical punishment, and neglect by anybody.Scope/severity EStandard
Abuse & neglect
Pattern; no actual harm, potential for more than minimal harm.Corrected 2024-05-14Record 555287-20240417-F600
F580Immediately tell the resident, the resident's doctor, and a family member of situations (injury/decline/room, etc.) that affect the resident.Scope/severity EStandard
Dignity & rights
Pattern; no actual harm, potential for more than minimal harm.Corrected 2023-11-20Record 555287-20231101-F580
F758Implement 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.Scope/severity EStandard
Medication
Pattern; no actual harm, potential for more than minimal harm.Corrected 2023-11-13Record 555287-20231017-F758
F805Ensure each resident receives and the facility provides food prepared in a form designed to meet individual needs.Scope/severity DStandard
Food & nutrition
Isolated; no actual harm, potential for more than minimal harm.Corrected 2023-11-13Record 555287-20231017-F805
F584Honor 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.Scope/severity KHarm
Dignity & rights
Pattern; immediate jeopardy to resident health or safety.Corrected 2023-09-19Record 555287-20230823-F584
F908Keep all essential equipment working safely.Scope/severity DStandard
Environment
Isolated; no actual harm, potential for more than minimal harm.Corrected 2023-09-19Record 555287-20230823-F908
F641Ensure each resident receives an accurate assessment.Scope/severity DStandard
Care planningRecords
Isolated; no actual harm, potential for more than minimal harm.Corrected 2022-04-30Record 555287-20220415-F641
F655Create and put into place a plan for meeting the resident's most immediate needs within 48 hours of being admittedScope/severity EStandard
Care planningRecords
Pattern; no actual harm, potential for more than minimal harm.Corrected 2022-04-30Record 555287-20220415-F655
F656Develop and implement a complete care plan that meets all the resident's needs, with timetables and actions that can be measured.Scope/severity DStandard
Care planningRecords
Isolated; no actual harm, potential for more than minimal harm.Corrected 2022-04-30Record 555287-20220415-F656
F677Provide care and assistance to perform activities of daily living for any resident who is unable.Scope/severity DStandard
Care planning
Isolated; no actual harm, potential for more than minimal harm.Corrected 2022-04-30Record 555287-20220415-F677
F695Provide safe and appropriate respiratory care for a resident when needed.Scope/severity DStandard
Care planning
Isolated; no actual harm, potential for more than minimal harm.Corrected 2022-04-30Record 555287-20220415-F695
F697Provide safe, appropriate pain management for a resident who requires such services.Scope/severity DStandard
Care planning
Isolated; no actual harm, potential for more than minimal harm.Corrected 2022-04-30Record 555287-20220415-F697
F725Provide enough nursing staff every day to meet the needs of every resident; and have a licensed nurse in charge on each shift.Scope/severity EStandard
Staffing
Pattern; no actual harm, potential for more than minimal harm.Corrected 2022-04-30Record 555287-20220415-F725
F755Provide pharmaceutical services to meet the needs of each resident and employ or obtain the services of a licensed pharmacist.Scope/severity DStandard
Medication
Isolated; no actual harm, potential for more than minimal harm.Corrected 2022-04-30Record 555287-20220415-F755
F756Ensure a licensed pharmacist perform a monthly drug regimen review, including the medical chart, following irregularity reporting guidelines in developed policies and procedures.Scope/severity EStandard
Medication
Pattern; no actual harm, potential for more than minimal harm.Corrected 2022-04-30Record 555287-20220415-F756
F758Implement 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.Scope/severity DStandard
Medication
Isolated; no actual harm, potential for more than minimal harm.Corrected 2022-04-30Record 555287-20220415-F758
F802Provide sufficient support personnel to safely and effectively carry out the functions of the food and nutrition service.Scope/severity DStandard
Food & nutrition
Isolated; no actual harm, potential for more than minimal harm.Corrected 2022-04-30Record 555287-20220415-F802
F804Ensure food and drink is palatable, attractive, and at a safe and appetizing temperature.Scope/severity EStandard
Food & nutrition
Pattern; no actual harm, potential for more than minimal harm.Corrected 2022-04-30Record 555287-20220415-F804
F812Procure food from sources approved or considered satisfactory and store, prepare, distribute and serve food in accordance with professional standards.Scope/severity EStandard
Food & nutrition
Pattern; no actual harm, potential for more than minimal harm.Corrected 2022-04-30Record 555287-20220415-F812
F880Provide and implement an infection prevention and control program.Scope/severity EStandard
Infection control
Pattern; no actual harm, potential for more than minimal harm.Corrected 2022-04-30Record 555287-20220415-F880
F908Keep all essential equipment working safely.Scope/severity DStandard
Environment
Isolated; no actual harm, potential for more than minimal harm.Corrected 2022-04-30Record 555287-20220415-F908
F888Ensure staff are vaccinated for COVID-19Scope/severity CPaperwork
Infection control
Widespread; potential for minimal harm.Corrected 2022-04-30Record 555287-20220415-F888
F578Honor 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.Scope/severity DStandard
Dignity & rights
Isolated; no actual harm, potential for more than minimal harm.Corrected 2019-08-18Record 555287-20190718-F578
F677Provide care and assistance to perform activities of daily living for any resident who is unable.Scope/severity DStandard
Care planning
Isolated; no actual harm, potential for more than minimal harm.Corrected 2019-08-18Record 555287-20190718-F677
F684Provide appropriate treatment and care according to orders, resident’s preferences and goals.Scope/severity DStandard
Care planning
Isolated; no actual harm, potential for more than minimal harm.Corrected 2019-08-18Record 555287-20190718-F684
F685Assist a resident in gaining access to vision and hearing services.Scope/severity DStandard
Care planning
Isolated; no actual harm, potential for more than minimal harm.Corrected 2019-08-18Record 555287-20190718-F685
F693Ensure 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.Scope/severity DStandard
Care planning
Isolated; no actual harm, potential for more than minimal harm.Corrected 2019-08-18Record 555287-20190718-F693
F755Provide pharmaceutical services to meet the needs of each resident and employ or obtain the services of a licensed pharmacist.Scope/severity DStandard
Medication
Isolated; no actual harm, potential for more than minimal harm.Corrected 2019-08-18Record 555287-20190718-F755
F756Ensure a licensed pharmacist perform a monthly drug regimen review, including the medical chart, following irregularity reporting guidelines in developed policies and procedures.Scope/severity DStandard
Medication
Isolated; no actual harm, potential for more than minimal harm.Corrected 2019-08-18Record 555287-20190718-F756
F757Ensure each resident’s drug regimen must be free from unnecessary drugs.Scope/severity DStandard
Medication
Isolated; no actual harm, potential for more than minimal harm.Corrected 2019-08-18Record 555287-20190718-F757
F761Ensure 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.Scope/severity DStandard
Medication
Isolated; no actual harm, potential for more than minimal harm.Corrected 2019-08-18Record 555287-20190718-F761
F770Provide timely, quality laboratory services/tests to meet the needs of residents.Scope/severity DStandard
Records
Isolated; no actual harm, potential for more than minimal harm.Corrected 2019-08-18Record 555287-20190718-F770
F800Provide each resident with a nourishing, palatable, well-balanced diet that meets his or her daily nutritional and special dietary needs.Scope/severity DStandard
Food & nutrition
Isolated; no actual harm, potential for more than minimal harm.Corrected 2019-08-18Record 555287-20190718-F800
F812Procure food from sources approved or considered satisfactory and store, prepare, distribute and serve food in accordance with professional standards.Scope/severity DStandard
Food & nutrition
Isolated; no actual harm, potential for more than minimal harm.Corrected 2019-08-18Record 555287-20190718-F812
F842Safeguard resident-identifiable information and/or maintain medical records on each resident that are in accordance with accepted professional standards.Scope/severity DStandard
Care planningRecords
Isolated; no actual harm, potential for more than minimal harm.Corrected 2019-08-18Record 555287-20190718-F842
F880Provide and implement an infection prevention and control program.Scope/severity EStandard
Infection control
Pattern; no actual harm, potential for more than minimal harm.Corrected 2019-08-18Record 555287-20190718-F880
Penalties & enforcement
| Date | Action | Amount | Source |
|---|---|---|---|
| 2023-08-23 | Civil money penalty | $42,033 | CMS · Penalties |
Staffing
CMS Payroll-Based Journal · PBJ, as published Aug 2026 · explainerRN hours per resident day0.49
Facility
California
National
California 0.67 · National 0.69
Total nurse hours per resident day4.30
Facility
California
National
California 4.52 · National 3.86
Weekend total nurse hours3.96
Facility
California
National
California 4.09 · National 3.42
Total nursing staff turnover25%
Facility
California
National
California 37% · National 46%
Registered nurse turnover53%
Facility
California
National
California 38% · National 43%
Quality measures
CMS MDS quality measures · 2025Q2-2026Q1 · definitions| Measure | Facility | California | National |
|---|---|---|---|
| Percentage of long-stay residents with pressure ulcers lower is better | 4.0% | 4.3% | 4.6% |
| Percentage of long-stay residents experiencing one or more falls with major injury lower is better | 0.3% | 1.6% | 3.2% |
| Percentage of long-stay residents who received an antipsychotic medication lower is better | 7.0% | 12.0% | 15.4% |
| Percentage of long-stay residents with a urinary tract infection lower is better | 0.0% | 1.2% | 1.6% |
| Percentage of long-stay residents who were physically restrained lower is better | 0.0% | 0.4% | 0.1% |
| Percentage of long-stay residents whose need for help with daily activities has increased lower is better | 9.2% | 10.2% | 13.9% |
| Percentage of long-stay residents who lose too much weight lower is better | 1.5% | 4.0% | 5.2% |
| Percentage of long-stay residents who received an antianxiety or hypnotic medication lower is better | 8.0% | 13.7% | 19.5% |
Figures verbatim from CMS, with the state and national figures from the same release. The direction that counts as better is CMS’s own and is stated on every row.
Ownership
As reported to CMS (Provider Enrollment)| Entity | Role | Interest | Since | Registry |
|---|---|---|---|---|
| Diamond Ridge Post Acute LLC Organization | 5% OR GREATER DIRECT OWNERSHIP INTEREST | 100% | — | — |
| Dehghanmanesh, Adrian Individual | OPERATIONAL/MANAGERIAL CONTROL | NOT APPLICABLE | — | — |
| Diamond Ridge Post Acute LLC Organization | OPERATIONAL/MANAGERIAL CONTROL | NOT APPLICABLE | — | — |
| Johnson, David Individual | OPERATIONAL/MANAGERIAL CONTROL | NOT APPLICABLE | — | — |
| Johnson, Frank Individual | OPERATIONAL/MANAGERIAL CONTROL | NOT APPLICABLE | — | — |
| Kochek, Joshua Individual | OPERATIONAL/MANAGERIAL CONTROL | NOT APPLICABLE | — | — |
| Oxford, Micheal Individual | OPERATIONAL/MANAGERIAL CONTROL | NOT APPLICABLE | — | — |
| Dehghanmanesh, Adrian Individual | ADP OF THE SNF | NOT APPLICABLE | — | — |
| Dehghanmanesh, Adrian Individual | CORPORATE OFFICER | NOT APPLICABLE | — | — |
| Diamond Ridge Post Acute LLC Organization | ADP OF THE SNF | NOT APPLICABLE | — | — |
| Farrales, Mary Individual | ADP OF THE SNF | NOT APPLICABLE | — | — |
| Johnson, David Individual | ADP OF THE SNF | NOT APPLICABLE | — | — |
| Johnson, Frank Individual | CORPORATE OFFICER | NOT APPLICABLE | — | — |
| Kochek, Joshua Individual | ADP OF THE SNF | NOT APPLICABLE | — | — |
| Ng, Andrew Individual | ADP OF THE SNF | NOT APPLICABLE | — | — |
| Oxford, Micheal Individual | ADP OF THE SNF | NOT APPLICABLE | — | — |
| Smv Pittsburg LLC Organization | ADP OF THE SNF | NOT APPLICABLE | — | — |
| Sun Meridian Management Services LLC Organization | ADP OF THE SNF | NOT APPLICABLE | — | — |
| Viloria, Harriet Individual | ADP OF THE SNF | NOT APPLICABLE | — | — |
Part of a chain
David Johnson — 48 facilities
Ownership as reported to CMS/state. CMS ownership data has known gaps; merges between entities are published only after human review.
Cost context
County figures from public surveys. Not this facility’s price. Nursing-home rates are not published by CMS or California.
No county cost figures on file for Contra Costa.
Nearby nursing homes
| Facility | Distance | Last survey | Deficiencies · 3 yrs |
|---|---|---|---|
| Pittsburg Skilled Nursing Center Pittsburg | 1.1 mi | 2025-06-03 | 1190 |
| Delta View Post Acute Antioch | 3.3 mi | 2026-05-04 | 1210 |
| Lone Tree Post Acute Antioch | 5.1 mi | 2026-05-01 | 0290 |
| Stonebrook Post Acute Concord | 6.4 mi | 2026-06-25 | 0151 |
| Diablo Valley Post Acute Concord | 8.0 mi | 2026-05-26 | 0273 |
Watch this facility
One email when a new survey, harm-class deficiency, penalty, Special Focus change or ownership change is recorded. Nothing else, ever.
Sources & provenance
| Section | Agency · dataset | Retrieved |
|---|---|---|
| Facility, ratings | CMS Provider Data · Nursing Home Provider Information | 2026-08-01 |
| Surveys | CMS · Survey Summary | 2026-08-01 |
| Deficiencies | CMS · Health Deficiencies (CMS-2567 findings via Care Compare) | 2026-08-01 |
| Penalties | CMS · Penalties | 2026-08-01 |
| Staffing | CMS · Payroll-Based Journal (PBJ, as published Aug 2026) | 2026-08-01 |
| Quality measures | CMS · MDS Quality Measures | 2026-08-01 |
| Ownership | CMS · Ownership | 2026-08-01 |