CMS data snapshot: July 2026
Facility results compared with averages for CMS-certified nursing homes in California. Ratings, staffing and turnover measure different parts of care and should be reviewed together.
Comparisons use the matching CMS state averages without a proprietary combined score. Review the comparison methodology.
A side-by-side view of the two CMS inspection cycles included in the current dataset.
Citation counts alone do not show severity. Review the inspection details below for scope, severity and correction status.
Cost data: Genworth/CareScout Cost of Care Survey (2024). Demographics: U.S. Census Bureau ACS (2022).
Swipe tabs for staffing, quality and ownership.
Diamond Ridge Healthcare Center is a 2-star Medicare and Medicaid certified nursing home in Pittsburg, California with 120 certified beds. It has been operating since 1987. Its overall CMS rating is 2 out of 5.
Honor the resident's right to a dignified existence, self-determination, communication, and to exercise his or her rights.
Ensure that a nursing home area is free from accident hazards and provides adequate supervision to prevent accidents.
Immediately tell the resident, the resident's doctor, and a family member of situations (injury/decline/room, etc.) that affect the resident.
Procure food from sources approved or considered satisfactory and store, prepare, distribute and serve food in accordance with professional standards.
Create and put into place a plan for meeting the resident's most immediate needs within 48 hours of being admitted
Provide care and assistance to perform activities of daily living for any resident who is unable.
Encode each resident’s assessment data and transmit these data to the State within 7 days of assessment.
Provide the appropriate treatment and services to a resident who displays or is diagnosed with dementia.
Provide pharmaceutical services to meet the needs of each resident and employ or obtain the services of a licensed pharmacist.
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.
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.
Create and put into place a plan for meeting the resident's most immediate needs within 48 hours of being admitted
Provide enough nursing staff every day to meet the needs of every resident; and have a licensed nurse in charge on each shift.
Ensure a licensed pharmacist perform a monthly drug regimen review, including the medical chart, following irregularity reporting guidelines in developed policies and procedures.
Ensure food and drink is palatable, attractive, and at a safe and appetizing temperature.
Procure food from sources approved or considered satisfactory and store, prepare, distribute and serve food in accordance with professional standards.
Develop and implement a complete care plan that meets all the resident's needs, with timetables and actions that can be measured.
Provide care and assistance to perform activities of daily living for any resident who is unable.
Provide safe, appropriate pain management for a resident who requires such services.
Provide pharmaceutical services to meet the needs of each resident and employ or obtain the services of a licensed pharmacist.
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.
Provide sufficient support personnel to safely and effectively carry out the functions of the food and nutrition service.
Protect each resident from all types of abuse such as physical, mental, sexual abuse, physical punishment, and neglect by anybody.
Immediately tell the resident, the resident's doctor, and a family member of situations (injury/decline/room, etc.) that affect the resident.
+ 19 more deficiencies
Staffing hours per resident per day. The black line shows the national average.
Quality measures as percentages of residents. Lower is better for all measures.
| Name | Role | Type | Ownership % | Since |
|---|---|---|---|---|
| DIAMOND RIDGE POST ACUTE LLC | 5% OR GREATER DIRECT OWNERSHIP INTEREST | Organization | 100% | Feb 3, 2022 |
| DEHGHANMANESH, ADRIAN | CORPORATE OFFICER | Individual | N/A | Jun 1, 2021 |
| JOHNSON, FRANK | CORPORATE OFFICER | Individual | N/A | Feb 11, 2021 |
| DIAMOND RIDGE POST ACUTE LLC | OPERATIONAL/MANAGERIAL CONTROL | Organization | N/A | Feb 3, 2022 |
| DEHGHANMANESH, ADRIAN | OPERATIONAL/MANAGERIAL CONTROL | Individual | N/A | Jun 1, 2021 |
| JOHNSON, DAVID | OPERATIONAL/MANAGERIAL CONTROL | Individual | N/A | Feb 11, 2021 |
| JOHNSON, FRANK | OPERATIONAL/MANAGERIAL CONTROL | Individual | N/A | Feb 11, 2021 |
| KOCHEK, JOSHUA | OPERATIONAL/MANAGERIAL CONTROL | Individual | N/A | Apr 1, 2022 |
| OXFORD, MICHEAL | OPERATIONAL/MANAGERIAL CONTROL | Individual | N/A | Jan 3, 2022 |
| DIAMOND RIDGE POST ACUTE LLC | ADP OF THE SNF | Organization | N/A | Feb 3, 2022 |
| SMV PITTSBURG LLC | ADP OF THE SNF | Organization | N/A | Jan 1, 2005 |
| SUN MERIDIAN MANAGEMENT SERVICES LLC | ADP OF THE SNF | Organization | N/A | Mar 22, 2021 |
| DEHGHANMANESH, ADRIAN | ADP OF THE SNF | Individual | N/A | Jun 1, 2021 |
| FARRALES, MARY | ADP OF THE SNF | Individual | N/A | Jan 1, 2023 |
| JOHNSON, DAVID | ADP OF THE SNF | Individual | N/A | Feb 11, 2021 |
| KOCHEK, JOSHUA | ADP OF THE SNF | Individual | N/A | Apr 1, 2022 |
| NG, ANDREW | ADP OF THE SNF | Individual | N/A | Jul 15, 2025 |
| OXFORD, MICHEAL | ADP OF THE SNF | Individual | N/A | Jan 3, 2022 |
| VILORIA, HARRIET | ADP OF THE SNF | Individual | N/A | Oct 12, 2024 |
Compare CMS ratings and recorded fines for Diamond Ridge Healthcare Center and nearby alternatives.
Distance is approximate. Ratings and enforcement data use the current CMS snapshot; recorded fines are not a complete measure of care quality. How nearby facilities are selected.
This chain operates 47 facilities. View all →