4081 EAST OLYMPIC BLVD, LOS ANGELES, CA 90023 · CCN 555638 · chain CHAMBER INC
Composite
17.9 / 100 percentile
Peer group
snf n = 14,684
Evidence depth
moderate
Certified beds
39
Model
v1.2
Reads as: riskier than 17.9% of the 14,684 facilities in the snf peer group. percentile within peer group, 100 = highest risk. Grade bands are fixed percentile cuts (F is the top 5% of peer risk), so a grade is a position, not an absolute level.
weighted_contribution sums to pre_rank_index over rows where counts_toward_index is true. The composite is the facility's percentile position of that index within its peer group, so contributions explain the input, and the rank explains the score.
ML signals — parallel engine
1
Kind
Finding
Signal
Subject
First seen
connection
Owner fleet enforcement cluster
50% fined
JOHNSON MARK
6 facilities
Findings from the always-on scanning layer: anomalies on this facility, connections through its current owners and past buyers. Runs beside the deterministic composite, never inside it. Full board on the ML Lab page.
Change-of-ownership footprint in the CMS Provider of Services file: control-family, legal-name and address deltas across quarterly snapshots, plus certification reset recency and Medicare tenure.
R23/W4-3. Deterministic logistic p(Medicare termination within 12m), SNF only. Label = first POS termination date (any code: voluntary closure, involuntary termination, merger exit); facilities already terminated by the panel date are excluded, not counted as safe. Trained on panels 2024-07/2024-10/2025-01 (n=46,466, 283 positives), evaluated on the held-out later panel 2025-04 BEFORE shipping: AUC 0.971, top-decile lift 9.5x, top-decile capture 95.4% of the 65 terminations that followed. Separability is high because closures announce themselves in the data: collapsing occupancy is the strongest signal, and the learned NEGATIVE weight on 12m deficiency counts is the surveys-stop signature of a facility winding down, not a claim that clean inspections are dangerous. Same 15 as-of-date features and anti-leakage chassis as p_chow_12m; SFF entry rejected as a label (only one month of SFF history exists, so as-of transitions cannot be reconstructed). Score = probability x 100; grade NULL. Not in any composite.
R22/W4-2. Deterministic logistic p(CHOW within 12m), SNF only. Trained on panels 2024-07/2024-10/2025-01 (n=50,700, 1,207 positives), evaluated on the held-out later panel 2025-04 BEFORE shipping: AUC 0.874, top-decile lift 5.0x (top 10% of predictions captured 49.6% of the CHOWs that actually closed in the next 12 months). Shipped coefficients are the evaluated ones; no post-holdout refit. Caveat: holdout positives (133) run below the training base rate because recent CHOWs surface in public records with a lag, so measured lift is conservative. Features are as-of-date public records: PBJ staffing level/trend/contract share (quarterly history to 2022Q1), deficiency and CMP counts (12m), ownership tenure and churn from CHOW-evidenced transactions, beds, occupancy, ownership type, chain size. Chain membership and ownership type are current-state (history not published). SFF and star ratings deliberately excluded (no as-of history). Notable learned direction: long ownership tenure RAISES sale odds and a recent prior CHOW lowers them. Score = probability x 100; grade is NULL because a probability is not a quality letter. Not in any composite.
Pre-registry model iteration, superseded by a later regulatory_risk rebuild. Rows retained for audit per project convention (see regulatory_risk v0.4-pos); never consumed because v_cii_api_facility_score and the composite eligibility join both require status = default. Backfilled 2026-07-26 by alert triage on model_registry_integrity.
Pre-registry model iteration, superseded by a later regulatory_risk rebuild. Rows retained for audit per project convention (see regulatory_risk v0.4-pos); never consumed because v_cii_api_facility_score and the composite eligibility join both require status = default. Backfilled 2026-07-26 by alert triage on model_registry_integrity.
Pre-registry model iteration, superseded by a later staffing_risk rebuild. Rows retained for audit per project convention (see regulatory_risk v0.4-pos); never consumed because v_cii_api_facility_score and the composite eligibility join both require status = default. Backfilled 2026-07-26 by alert triage on model_registry_integrity.
Pre-registry model iteration, superseded by a later staffing_risk rebuild. Rows retained for audit per project convention (see regulatory_risk v0.4-pos); never consumed because v_cii_api_facility_score and the composite eligibility join both require status = default. Backfilled 2026-07-26 by alert triage on model_registry_integrity.
Rows with counts_toward_composite false come from models that are addressable or retracted rather than default. They exist and may be informative, but they did not enter the published composite and must not be summed as though they had.
p_adverse_action_12m: probability the facility's Medicare participation terminates within 12 months (any POS termination code; already-terminated facilities are excluded, not scored safe). Deterministic logistic over as-of-date public records, SNF only. Holdout (2025-04 panel, evaluated before shipping): AUC 0.971, top-decile lift 9.5x. Closures announce themselves: collapsing occupancy dominates, and fewer recent surveys is a winding-down signature. inputs.features holds raw feature values, inputs.contributions each feature's standardized pull on the log-odds. Predictions never enter the composite. See /v1/models. | p_chow_12m: probability of a change of ownership within 12 months. Deterministic logistic over as-of-date public records, SNF only. Holdout (2025-04 panel, evaluated before shipping): AUC 0.874, top-decile lift 5.0x. inputs.features holds raw feature values, inputs.contributions each feature's standardized pull on the log-odds. Predictions never enter the composite. See /v1/models for full notes.
Probability the facility's Medicare participation ends within 12 months, from public records only. Red bars raise exit odds. A negative pull from deficiencies is the winding-down signature — surveys stop as a facility empties — not evidence that clean inspections are dangerous.
Staffing vs peers
15
2025Q4 HPRD
This facility
CA median
National median
National p25–p75
Total nurse
6.12
3.95
3.28
2.90–3.77
RN
1.18
0.38
0.39
0.25–0.58
Weekend total
5.98
3.79
3.11
—
Weekday total
6.17
4.01
3.35
—
Quarter
Days
Avg census
Total HPRD
RN
LPN
CNA
Weekend
Contract %
2025Q4
92
41.4
6.12
1.18
2.55
2.39
5.98
0.0%
2025Q3
92
37.7
6.26
1.24
2.66
2.37
6.04
0.0%
2025Q2
91
38.6
6.11
1.21
2.59
2.31
5.71
0.0%
2025Q1
90
34.8
6.21
1.24
2.47
2.51
5.81
0.0%
2024Q4
92
32.1
7.04
1.42
2.73
2.89
6.76
0.0%
2024Q3
92
27.2
4.89
1.64
1.72
1.53
4.44
0.0%
2024Q1
91
30.5
7.10
1.45
3.02
2.63
6.90
0.0%
2023Q4
92
31.7
5.62
1.40
2.76
1.46
5.37
0.0%
2023Q3
92
29.8
5.81
1.55
2.87
1.40
5.47
0.0%
2023Q2
91
31.9
6.79
1.34
3.01
2.43
6.54
0.0%
2023Q1
90
34.0
6.28
1.42
2.50
2.36
6.17
0.0%
2022Q4
92
36.8
5.88
1.28
2.39
2.21
5.79
0.0%
2022Q3
92
33.4
6.60
1.24
2.65
2.71
6.32
0.0%
2022Q2
91
32.6
6.45
1.12
2.65
2.67
6.08
0.0%
2022Q1
90
33.7
6.29
1.01
2.68
2.60
6.08
0.0%
HPRD is census-weighted: total hours over the quarter divided by total resident-days, not an average of daily ratios. Source is CMS Payroll-Based Journal daily records; only SNFs report PBJ, so other settings legitimately return zero rows.
Ensure that each resident is free from the use of physical restraints, unless needed for medical treatment.
D
2026-02-27
2026-02-06
Health
F0605
Prevent the use of unnecessary psychotropic medications or use medications that may restrain a resident's ability to function.
D
2026-02-27
2026-02-06
Health
F0656
Develop and implement a complete care plan that meets all the resident's needs, with timetables and actions that can be measured.
D
2026-02-27
2026-02-06
Health
F0684
Provide appropriate treatment and care according to orders, resident’s preferences and goals.
D
2026-02-27
2026-02-06
Health
F0690
Provide appropriate care for residents who are continent or incontinent of bowel/bladder, appropriate catheter care, and appropriate care to prevent urinary tract infections.
D
2026-02-27
2026-02-06
Health
F0695
Provide safe and appropriate respiratory care for a resident when needed.
D
2026-02-27
2026-02-06
Health
F0755
Provide pharmaceutical services to meet the needs of each resident and employ or obtain the services of a licensed pharmacist.
D
2026-02-27
2026-02-06
Health
F0880
Provide and implement an infection prevention and control program.
E
2026-02-27
2026-02-06
Health
F0912
Provide rooms that are at least 80 square feet per resident in multiple rooms and 100 square feet for single resident rooms.
B
2026-02-27
2024-11-24
Health
F0577
Allow residents to easily view the nursing home's survey results and communicate with advocate agencies.
D
2024-12-12
2024-11-24
Health
F0641
Ensure each resident receives an accurate assessment.
D
2024-12-12
2024-11-24
Health
F0644
Coordinate assessments with the pre-admission screening and resident review program; and referring for services as needed.
D
2024-12-12
2024-11-24
Health
F0657
Develop the complete care plan within 7 days of the comprehensive assessment; and prepared, reviewed, and revised by a team of health professionals.
D
2024-12-12
2024-11-24
Health
F0677
Provide care and assistance to perform activities of daily living for any resident who is unable.
D
2024-12-12
2024-11-24
Health
F0695
Provide safe and appropriate respiratory care for a resident when needed.
D
2024-12-12
2024-11-24
Health
F0756
Ensure a licensed pharmacist perform a monthly drug regimen review, including the medical chart, following irregularity reporting guidelines in developed policies and procedures.
D
2024-12-12
2024-11-24
Health
F0758
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.
D
2024-12-12
2024-11-24
Health
F0759
Ensure medication error rates are not 5 percent or greater.
D
2024-12-12
2024-11-24
Health
F0761
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.
D
2024-12-12
2024-11-24
Health
F0880
Provide and implement an infection prevention and control program.
E
2024-12-12
2024-11-24
Health
F0912
Provide rooms that are at least 80 square feet per resident in multiple rooms and 100 square feet for single resident rooms.
B
2024-12-12
2023-11-29
Health
F0623
Provide timely notification to the resident, and if applicable to the resident representative and ombudsman, before transfer or discharge, including appeal rights.
D
2023-12-08
2023-11-29
Health
F0760
Ensure that residents are free from significant medication errors.
D
2023-12-08
2023-11-29
Health
F0761
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.
E
2023-12-08
2023-11-29
Health
F0880
Provide and implement an infection prevention and control program.
D
2023-12-08
2023-11-29
Health
F0912
Provide rooms that are at least 80 square feet per resident in multiple rooms and 100 square feet for single resident rooms.
B
2023-12-08
2023-07-06
Health · complaint
F0580
Immediately tell the resident, the resident's doctor, and a family member of situations (injury/decline/room, etc.) that affect the resident.
D
2023-07-19
scope_severity uses the CMS letter grid: A is least serious, L most. J, K and L are immediate jeopardy. Rows are the surveyor's findings of record, not the model's opinion.
Licensure actions
0
No licensure actions on record for this facility. Absence of a record here means the sources CII ingests contain none, not that none exists anywhere.
Ownership
31
Owner
Role
Pct
From
Status
Source
ALTA HOSPITALS SYSTEM LLC
5% OR GREATER DIRECT OWNERSHIP INTEREST
100%
2007-06-05
current
pecos_ownership
CHAMBER INC
5% OR GREATER INDIRECT OWNERSHIP INTEREST
—
2021-06-01
current
pecos_ownership
DAVID & ALEXA TOPPER FAMILY TRUST
5% OR GREATER INDIRECT OWNERSHIP INTEREST
—
2010-12-15
current
pecos_ownership
ELDERS, ROBERT
CORPORATE OFFICER
—
2020-06-15
current
pecos_ownership
GORENSTEIN, WILLIAM
CORPORATE OFFICER
—
2016-08-15
current
pecos_ownership
HERNANDEZ, HECTOR
W-2 MANAGING EMPLOYEE
—
2016-05-23
current
pecos_ownership
IVY HOLDINGS INC
5% OR GREATER INDIRECT OWNERSHIP INTEREST
—
2010-12-15
current
pecos_ownership
IVY INTERMEDIATE HOLDING INC
5% OR GREATER INDIRECT OWNERSHIP INTEREST
—
2010-12-15
current
pecos_ownership
JAMES, CARMELO
W-2 MANAGING EMPLOYEE
—
2016-09-15
current
pecos_ownership
JOHNSON, MARK
CORPORATE OFFICER
—
2020-07-27
current
pecos_ownership
JP MORGAN CHASE, N.A.
5% OR GREATER SECURITY INTEREST
—
2016-06-30
current
pecos_ownership
LEE, SANG BUM
CORPORATE OFFICER
—
2007-08-08
current
pecos_ownership
MPT OF BELLFLOWER PMH, L.P.
5% OR GREATER INDIRECT OWNERSHIP INTEREST
—
2019-08-23
current
pecos_ownership
MPT OF LOS ANGELES PMH, L.P.
5% OR GREATER INDIRECT OWNERSHIP INTEREST
—
2019-08-23
current
pecos_ownership
MPT OF NORWALK PMH, L.P.
5% OR GREATER INDIRECT OWNERSHIP INTEREST
—
2019-08-23
current
pecos_ownership
PROSPECT MEDICAL HOLDINGS INC
5% OR GREATER INDIRECT OWNERSHIP INTEREST
—
2007-08-08
current
pecos_ownership
SABILLO, ALFREDO
CORPORATE OFFICER
—
2020-07-21
current
pecos_ownership
SAMUELS, ERIC
CORPORATE OFFICER
—
2019-06-03
current
pecos_ownership
TOPPER, DAVID
CORPORATE DIRECTOR
—
2007-11-14
current
pecos_ownership
TOPPER, DAVID
CORPORATE OFFICER
—
2007-08-08
current
pecos_ownership
SANG BUM LEE
5% OR GREATER INDIRECT OWNERSHIP INTEREST
67%
2007-08-08
ended 2026-05-18
pecos_ownership
HECTOR HERNANDEZ
W-2 MANAGING EMPLOYEE
0%
2016-05-23
ended 2026-05-18
pecos_ownership
ALFREDO SABILLO
CORPORATE OFFICER
—
2020-07-21
ended 2026-05-18
pecos_ownership
CARMELO JAMES
W-2 MANAGING EMPLOYEE
—
2016-09-15
ended 2026-05-18
pecos_ownership
DAVID TOPPER
CORPORATE OFFICER
—
2007-08-08
ended 2026-05-18
pecos_ownership
DAVID TOPPER
CORPORATE DIRECTOR
—
2007-11-14
ended 2026-05-18
pecos_ownership
DAVID TOPPER
OTHER
—
2010-12-15
ended 2026-05-18
pecos_ownership
ERIC SAMUELS
CORPORATE OFFICER
—
2019-06-03
ended 2026-05-18
pecos_ownership
MARK JOHNSON
CORPORATE OFFICER
—
2020-07-27
ended 2026-05-18
pecos_ownership
ROBERT ELDERS
CORPORATE OFFICER
—
2020-06-15
ended 2026-05-18
pecos_ownership
WILLIAM GORENSTEIN
CORPORATE OFFICER
—
2016-08-15
ended 2026-05-18
pecos_ownership
PECOS ownership and managing-control associations. Current edges have no end date in the source; historical edges are retained.
Related-party costs
0
No related-party cost years on record for this facility. Absence of a record here means the sources CII ingests contain none, not that none exists anywhere.
Cost-report related-party spend by fiscal year. has_propco flags real-estate counterparties.
Transactions
0
No transactions on record for this facility. Absence of a record here means the sources CII ingests contain none, not that none exists anywhere.
Most recent same-state, same-setting trades. Most CHOW-derived trades carry no disclosed consideration, so price, $/bed, and cap rate show only where a sale price was resolved from a deed or filing — blanks are honest, not missing data.
Market rent context
36
Geo
Kind
BR
Amount
As of
Source
county 06037
acs median gross
0
$1,523
2024-12-31
CENSUS_ACS5
county 06037
fmr
0
$1,863
2025-10-01
HUD_USER_FMR
county 06037
acs median gross
1
$1,724
2024-12-31
CENSUS_ACS5
county 06037
fmr
1
$2,085
2025-10-01
HUD_USER_FMR
county 06037
acs median gross
2
$2,127
2024-12-31
CENSUS_ACS5
county 06037
fmr
2
$2,601
2025-10-01
HUD_USER_FMR
county 06037
acs median gross
3
$2,484
2024-12-31
CENSUS_ACS5
county 06037
fmr
3
$3,298
2025-10-01
HUD_USER_FMR
county 06037
acs median gross
4
$2,866
2024-12-31
CENSUS_ACS5
county 06037
fmr
4
$3,672
2025-10-01
HUD_USER_FMR
county 06037
acs median gross
5
$2,767
2024-12-31
CENSUS_ACS5
county 06037
acs median gross
$1,954
2024-12-31
CENSUS_ACS5
county 06037
acs recent mover gross
$2,358
2024-12-31
CENSUS_ACS5
zcta 90023
acs median gross
0
$1,358
2024-12-31
CENSUS_ACS5
zcta 90023
acs median gross
1
$1,186
2024-12-31
CENSUS_ACS5
zcta 90023
acs median gross
2
$1,572
2024-12-31
CENSUS_ACS5
zcta 90023
acs median gross
3
$1,825
2024-12-31
CENSUS_ACS5
zcta 90023
acs median gross
4
$1,848
2024-12-31
CENSUS_ACS5
zcta 90023
acs median gross
5
$2,521
2024-12-31
CENSUS_ACS5
zcta 90023
acs median gross
$1,488
2024-12-31
CENSUS_ACS5
zcta 90023
acs recent mover gross
$1,464
2024-12-31
CENSUS_ACS5
zip 90023
payment standard 110
0
$1,716
2025-10-01
HUD_USER_SAFMR
zip 90023
payment standard 90
0
$1,404
2025-10-01
HUD_USER_SAFMR
zip 90023
safmr
0
$1,560
2025-10-01
HUD_USER_SAFMR
zip 90023
payment standard 110
1
$1,925
2025-10-01
HUD_USER_SAFMR
zip 90023
payment standard 90
1
$1,575
2025-10-01
HUD_USER_SAFMR
zip 90023
safmr
1
$1,750
2025-10-01
HUD_USER_SAFMR
zip 90023
payment standard 110
2
$2,398
2025-10-01
HUD_USER_SAFMR
zip 90023
payment standard 90
2
$1,962
2025-10-01
HUD_USER_SAFMR
zip 90023
safmr
2
$2,180
2025-10-01
HUD_USER_SAFMR
zip 90023
payment standard 110
3
$3,036
2025-10-01
HUD_USER_SAFMR
zip 90023
payment standard 90
3
$2,484
2025-10-01
HUD_USER_SAFMR
zip 90023
safmr
3
$2,760
2025-10-01
HUD_USER_SAFMR
zip 90023
payment standard 110
4
$3,388
2025-10-01
HUD_USER_SAFMR
zip 90023
payment standard 90
4
$2,772
2025-10-01
HUD_USER_SAFMR
zip 90023
safmr
4
$3,080
2025-10-01
HUD_USER_SAFMR
ACS median gross rents and HUD FMR/SAFMR for the facility's county and ZIP. Context for underwriting, not facility pricing.