Diamond Ridge Healthcare Center
2351 Loveridge Road, Pittsburg, CA 94565 · Contra Costa County · 120 certified beds · avg 113 residents/day · certified since Oct 2, 1987
Part of chain: DAVID JOHNSON (48 facilities, chain avg rating 3.2★)
2/5
Health inspection rating (on-site)
1
Serious findings on record
$42,033
Fines, last 3 years
4.05
Nurse hours/resident/day (adjusted)
What health inspectors found (on-site government inspections — the most independent evidence available)
Health inspection rating: ★★☆☆☆2/5 · CMS overall rating: 2/5
The health inspection star above is graded on a curve within each state — a set share of each state's facilities gets each star level — so a facility can have few citations and still rate 2–3 stars if others in its state did even better. The overall rating combines that inspection score with staffing and self-reported quality measures.
Most serious findings (actual harm or immediate jeopardy)
▲ Immediate jeopardy, repeated · Aug 23, 2023 · F-0584 · triggered by a complaint
The facility did not provide a safe, clean, comfortable, and homelike environment, including safe support for residents' daily living needs.
Why it matters: An unsafe or unclean environment affects residents' health, comfort, and dignity every single day.
Severity (K): A life-threatening or extremely dangerous situation affected several residents. Among the most serious findings an inspection can produce.
Corrected: Sep 19, 2023 (Deficient, Provider has date of correction)
All citations in the current public record (48)
CMS publishes roughly the last three inspection cycles plus recent complaint investigations. Older surveys drop out of the record as new ones are completed.
| Date | Severity | What the facility was cited for |
|---|---|---|
| Jan 16, 2026 | D · Potential for harm, one-off | The facility did not treat residents with dignity and respect, or did not honor their rights to make their own decisions and communicate freely. This is one of the most fundamental resident rights. · from a complaint |
| Jan 16, 2026 | D · Potential for harm, one-off | The facility did not keep the environment free of accident hazards, or did not provide enough supervision to prevent accidents like falls. · from a complaint |
| Dec 29, 2025 | D · Potential for harm, one-off | The facility did not immediately notify the resident, their doctor, and a family member when something significant happened — such as an injury, a decline in health, or a room change. Families and doctors are entitled to know right away. · from a complaint |
| Aug 15, 2024 | F · Potential for harm, facility-wide | The facility did not get its food from approved, safe sources, or did not store, prepare, and serve food according to professional food safety standards. |
| Aug 15, 2024 | E · Potential for harm, repeated | The facility did not create and follow a basic care plan covering a new resident's most immediate needs within 48 hours of admission. The first days are when a new resident is most vulnerable. |
| Aug 15, 2024 | E · Potential for harm, repeated | The facility did not provide the help residents need with basic daily activities — like bathing, dressing, eating, and using the bathroom — for residents who cannot do these things on their own. |
| Aug 15, 2024 | E · Potential for harm, repeated | The facility did not have or follow an effective program to prevent and control infections — such as proper hand washing, cleaning, and isolation practices. This is the most commonly cited deficiency nationwide. |
| Aug 15, 2024 | D · Potential for harm, one-off | The facility did not enter each resident's assessment information into the required format and send it to the state within 7 days of completing the assessment, as the rules require. |
| Aug 15, 2024 | D · Potential for harm, one-off | The facility did not provide the right treatment and services for residents with dementia or signs of dementia. Dementia care requires specific approaches, training, and patience. · from a complaint |
| Aug 15, 2024 | D · Potential for harm, one-off | The facility did not provide pharmacy services that meet each resident's needs, or did not employ or contract with a licensed pharmacist. |
| Aug 15, 2024 | D · Potential for harm, one-off | The facility did not try to gradually reduce doses of mood- and mind-altering medications or use non-drug approaches first, as required, or used 'as needed' psychiatric drugs without proper limits. |
| Aug 15, 2024 | D · Potential for harm, one-off | The facility did not label drugs according to professional standards or did not store them in locked compartments, with controlled drugs (medications with a high risk of misuse) kept under a separate lock. |
| Apr 17, 2024 | E · Potential for harm, repeated | The facility did not protect residents from abuse or neglect. This covers physical, mental, and sexual abuse, physical punishment, and neglect, by anyone — staff, other residents, or visitors. · from a complaint |
| Nov 1, 2023 | E · Potential for harm, repeated | The facility did not immediately notify the resident, their doctor, and a family member when something significant happened — such as an injury, a decline in health, or a room change. Families and doctors are entitled to know right away. · from a complaint |
| Oct 17, 2023 | E · Potential for harm, repeated | The facility did not try to gradually reduce doses of mood- and mind-altering medications or use non-drug approaches first, as required, or used 'as needed' psychiatric drugs without proper limits. · from a complaint |
| Oct 17, 2023 | D · Potential for harm, one-off | The facility did not prepare and serve food in a form that meets each resident's individual needs — for example, chopped, pureed, or softened food for residents with chewing or swallowing problems. · from a complaint |
| Aug 23, 2023 | ▲ K · Immediate jeopardy, repeated | The facility did not provide a safe, clean, comfortable, and homelike environment, including safe support for residents' daily living needs. · from a complaint |
| Aug 23, 2023 | D · Potential for harm, one-off | The facility did not keep all essential equipment working safely — things like heating and cooling systems, kitchen equipment, and medical devices. · from a complaint |
| Apr 15, 2022 | E · Potential for harm, repeated | The facility did not create and follow a basic care plan covering a new resident's most immediate needs within 48 hours of admission. The first days are when a new resident is most vulnerable. |
| Apr 15, 2022 | E · Potential for harm, repeated | The facility did not have enough nursing staff each day to meet every resident's needs, or did not have a licensed nurse in charge on each shift. Adequate staffing is one of the strongest predictors of good care. |
| Apr 15, 2022 | E · Potential for harm, repeated | The facility did not have a licensed pharmacist review each resident's complete medication regimen and medical chart every month, or did not follow its own rules for reporting medication problems. |
| Apr 15, 2022 | E · Potential for harm, repeated | The facility did not serve food and drinks that were appetizing, attractive, and at a safe and pleasant temperature. |
| Apr 15, 2022 | E · Potential for harm, repeated | The facility did not get its food from approved, safe sources, or did not store, prepare, and serve food according to professional food safety standards. |
| Apr 15, 2022 | E · Potential for harm, repeated | The facility did not have or follow an effective program to prevent and control infections — such as proper hand washing, cleaning, and isolation practices. This is the most commonly cited deficiency nationwide. |
| Apr 15, 2022 | D · Potential for harm, one-off | The facility did not accurately assess a resident's health and needs. Assessments are the foundation for all the care a resident receives. |
| Apr 15, 2022 | D · Potential for harm, one-off | The facility did not develop or follow a complete care plan for each resident — the written roadmap covering all of a resident's needs, with measurable goals and timelines. |
| Apr 15, 2022 | D · Potential for harm, one-off | The facility did not provide the help residents need with basic daily activities — like bathing, dressing, eating, and using the bathroom — for residents who cannot do these things on their own. |
| Apr 15, 2022 | D · Potential for harm, one-off | The facility did not provide safe and appropriate respiratory care — such as oxygen, breathing treatments, or care for residents on breathing equipment — for residents who needed it. |
| Apr 15, 2022 | D · Potential for harm, one-off | The facility did not provide safe and appropriate pain management for a resident who needed it. |
| Apr 15, 2022 | D · Potential for harm, one-off | The facility did not provide pharmacy services that meet each resident's needs, or did not employ or contract with a licensed pharmacist. |
| Apr 15, 2022 | D · Potential for harm, one-off | The facility did not try to gradually reduce doses of mood- and mind-altering medications or use non-drug approaches first, as required, or used 'as needed' psychiatric drugs without proper limits. |
| Apr 15, 2022 | D · Potential for harm, one-off | The facility did not have enough support staff to safely and effectively run its food and nutrition service. |
| Apr 15, 2022 | D · Potential for harm, one-off | The facility did not keep all essential equipment working safely — things like heating and cooling systems, kitchen equipment, and medical devices. |
| Apr 15, 2022 | C · Minimal risk, facility-wide | The facility did not make sure its staff were vaccinated for COVID-19 in accordance with the federal requirements in effect at the time. |
| Jul 18, 2019 | E · Potential for harm, repeated | The facility did not have or follow an effective program to prevent and control infections — such as proper hand washing, cleaning, and isolation practices. This is the most commonly cited deficiency nationwide. |
| Jul 18, 2019 | D · Potential for harm, one-off | The facility did not honor residents' rights to request, refuse, or stop treatment, to decline participation in medical research, or to make an advance directive — a written statement of their wishes for future medical care. |
| Jul 18, 2019 | D · Potential for harm, one-off | The facility did not provide the help residents need with basic daily activities — like bathing, dressing, eating, and using the bathroom — for residents who cannot do these things on their own. |
| Jul 18, 2019 | D · Potential for harm, one-off | The facility did not provide treatment and care that follows the doctor's orders and matches the resident's own preferences and goals. |
| Jul 18, 2019 | D · Potential for harm, one-off | The facility did not help a resident get vision and hearing services — such as eye exams, glasses, hearing tests, or hearing aids. |
| Jul 18, 2019 | D · Potential for harm, one-off | The facility used feeding tubes without a valid medical reason or the resident's agreement, or did not provide proper care to residents who have feeding tubes. |
| Jul 18, 2019 | D · Potential for harm, one-off | The facility did not provide pharmacy services that meet each resident's needs, or did not employ or contract with a licensed pharmacist. |
| Jul 18, 2019 | D · Potential for harm, one-off | The facility did not have a licensed pharmacist review each resident's complete medication regimen and medical chart every month, or did not follow its own rules for reporting medication problems. |
| Jul 18, 2019 | D · Potential for harm, one-off | The facility did not keep residents' medications free from unnecessary drugs. Residents should only take medicines they truly need, at the right dose, for a clear reason. |
| Jul 18, 2019 | D · Potential for harm, one-off | The facility did not label drugs according to professional standards or did not store them in locked compartments, with controlled drugs (medications with a high risk of misuse) kept under a separate lock. |
| Jul 18, 2019 | D · Potential for harm, one-off | The facility did not provide timely, quality laboratory tests to meet residents' needs. |
| Jul 18, 2019 | D · Potential for harm, one-off | The facility did not provide each resident with a nourishing, tasty, well-balanced diet that meets their daily nutritional and special dietary needs. |
| Jul 18, 2019 | D · Potential for harm, one-off | The facility did not get its food from approved, safe sources, or did not store, prepare, and serve food according to professional food safety standards. |
| Jul 18, 2019 | D · Potential for harm, one-off | The facility did not protect residents' personal information or did not keep complete, accurate medical records that meet professional standards. |
Inspection trend by year
Citations from standard inspections decreased between the last two inspection cycles (16 → 9).
| Year | Citations | Serious (G–L) | Worst severity that year |
|---|---|---|---|
| 2019 | 14 | 0 | E |
| 2022 | 16 | 0 | E |
| 2023 | 5 | 1 | K ▲ |
| 2024 | 10 | 0 | F |
| 2025 | 1 | 0 | D |
| 2026 | 2 | 0 | D |
Counts reflect the current CMS public record (~3 inspection cycles plus complaint investigations); years with no surveys show no row. Inspection frequency varies, so compare severity as well as counts.
Fines and enforcement (last 3 years)
1 fine totaling $42,033.
| Date | Type | Amount / length |
|---|---|---|
| Aug 23, 2023 | Fine | $42,033 |
Nurse staffing (from payroll records, adjusted for how much care residents need)
| Measure | This facility | California avg | U.S. avg | Where it stands |
|---|---|---|---|---|
| Total nurse staffing (hours per resident per day) | 4.05 | 4.31 | 3.95 | bottom 46% in California; top 37% in the U.S. |
| Registered Nurse hours | 0.46 | 0.61 | 0.69 | bottom 47% in California; bottom 32% in the U.S. |
| Weekend total nurse staffing | 3.74 | 3.90 | 3.50 | bottom 49% in California; top 32% in the U.S. |
| Weekend RN hours (not acuity-adjusted) | 0.31 | 0.51 | 0.48 | bottom 38% in California; bottom 35% in the U.S. |
| Total nursing staff turnover (%) | 24.6 | 36.7 | 45.8 | top 16% in California; top 7% in the U.S. |
| RN turnover (%) | 52.9 | 38.1 | 42.9 | bottom 22% in California; bottom 31% in the U.S. |
Hours are per resident per day, case-mix adjusted by CMS so facilities caring for sicker residents can be compared fairly (same basis as the CMS staffing star). "Top X%" means better than most facilities: more staffing hours, or lower turnover. Raw (unadjusted) reported hours: total 4.30, RN 0.49, weekend 3.96. Staffing rating: 4/5.
Self-reported quality measures
Note: these ratings are based on data the facility reports about itself to CMS. They are not independently verified by inspectors, and can look better than inspection findings. Give more weight to the inspection results above.
Quality measures rating: 4/5 · long-stay residents: 5/5 · short-stay residents: 4/5
Who owns this facility
For profit - Limited Liability company
| Owner / manager | Type | Role | Stake | Since |
|---|---|---|---|---|
| Diamond Ridge Post Acute LLC | Organization | 5% or Greater Direct Ownership Interest | 100% | 02/03/2022 |
| Dehghanmanesh, Adrian | Individual | Corporate Officer | NOT APPLICABLE | 06/01/2021 |
| Dehghanmanesh, Adrian | Individual | Operational/Managerial Control | NOT APPLICABLE | 06/01/2021 |
| Dehghanmanesh, Adrian | Individual | ADP of the SNF | NOT APPLICABLE | 06/01/2021 |
| Diamond Ridge Post Acute LLC | Organization | Operational/Managerial Control | NOT APPLICABLE | 02/03/2022 |
| Diamond Ridge Post Acute LLC | Organization | ADP of the SNF | NOT APPLICABLE | 02/03/2022 |
| Farrales, Mary | Individual | ADP of the SNF | NOT APPLICABLE | 01/01/2023 |
| Johnson, David | Individual | Operational/Managerial Control | NOT APPLICABLE | 02/11/2021 |
| Johnson, David | Individual | ADP of the SNF | NOT APPLICABLE | 02/11/2021 |
| Johnson, Frank | Individual | Corporate Officer | NOT APPLICABLE | 02/11/2021 |
| Johnson, Frank | Individual | Operational/Managerial Control | NOT APPLICABLE | 02/11/2021 |
| Kochek, Joshua | Individual | Operational/Managerial Control | NOT APPLICABLE | 04/01/2022 |
| Kochek, Joshua | Individual | ADP of the SNF | NOT APPLICABLE | 04/01/2022 |
| NG, Andrew | Individual | ADP of the SNF | NOT APPLICABLE | 07/15/2025 |
| Oxford, Micheal | Individual | Operational/Managerial Control | NOT APPLICABLE | 01/03/2022 |
| Oxford, Micheal | Individual | ADP of the SNF | NOT APPLICABLE | 01/03/2022 |
| SMV Pittsburg LLC | Organization | ADP of the SNF | NOT APPLICABLE | 01/01/2005 |
| Sun Meridian Management Services LLC | Organization | ADP of the SNF | NOT APPLICABLE | 03/22/2021 |
| Viloria, Harriet | Individual | ADP of the SNF | NOT APPLICABLE | 10/12/2024 |
Questions to ask on your visit
Generated from this facility's actual citation record — bring them to a tour and ask the administrator directly.
- "Can we tour the resident rooms, bathrooms, and common areas today, including areas not on the usual tour route?"
- "Can you give me examples of how your staff protect residents' dignity in everyday care, like bathing and dressing?"
- "What is your falls rate, and what specific steps do you take to prevent falls and supervise residents at risk?"
- "If my family member falls or their condition changes, exactly when and how will I be notified?"
- "What did your most recent kitchen inspection find, and can I see how food is stored and prepared?"
- "What does the care plan for a brand-new resident cover in the first 48 hours, and who writes it?"
- "How many aides are on each shift, and how do you make sure every resident gets timely help with bathing, dressing, and meals?"
- "Who leads your infection prevention program, and how do you make sure staff follow practices like hand hygiene every day?"
- "What is your current ratio of nursing staff to residents on day, evening, and weekend shifts?"
- "Can I see the results and plan of correction from your most recent state inspection?"
Nearby facilities (within 20 miles)
| Facility | Distance | City | Overall | Inspection | Flags |
|---|---|---|---|---|---|
| Pittsburg Skilled Nursing Center | 1.1 mi | Pittsburg, CA | ★☆☆☆☆ | 2/5 | |
| Delta View Post Acute | 3.3 mi | Antioch, CA | ★★★★☆ | 3/5 | |
| Lone Tree Post Acute | 5.1 mi | Antioch, CA | ★★★★☆ | 3/5 | |
| Stonebrook Post Acute | 6.3 mi | Concord, CA | ★★★★☆ | 4/5 | |
| Diablo Valley Post Acute | 8.0 mi | Concord, CA | ★★☆☆☆ | 1/5 | abuse |
| Willow Pass Healthcare Center | 8.3 mi | Concord, CA | ★★★☆☆ | 2/5 | |
| Concord Post Acute | 9.3 mi | Concord, CA | ★★☆☆☆ | 2/5 | abuse |
| Bayberry Skilled Nursing & Healthcare Center | 9.5 mi | Concord, CA | ★★★★☆ | 3/5 | |
| Shadelands Post Acute | 9.7 mi | Walnut Creek, CA | ★★★★☆ | 3/5 | |
| Pleasant Hill Post Acute | 11.5 mi | Pleasant Hill, CA | ★★★★☆ | 3/5 | |
| La Casa via Transitional Care Center | 11.8 mi | Walnut Creek, CA | ★★★★★ | 4/5 | |
| Tampico Healthcare Center | 11.8 mi | Walnut Creek, CA | ★★★★☆ | 3/5 |
Compare this facility with the 3 closest →
Facility data as of CMS processing date 2026-08-01. CCN 555287.