Mayo ld_i lactate dehydrogenase isoenzymes at Providence Saint John's Health Center

2121 Santa Monica Blvd, Santa Monica, CA · Providence · · NPI 1124026273

Source: hospital's published price file ↗ · Published Apr 1, 2026 · Ingested Sep 11, 2026

not published by hospital

Cash price

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Discounted cash price

What a hospital charges a self-pay patient who pays directly, without going through insurance — usually well below the gross charge.

Example: A CT scan has a $3,200 gross charge but an $850 discounted cash price. Ask for it by name when scheduling — hospitals don't always advertise it up front.

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What you pay up front if you don't use insurance.

not published by hospital

Gross charge

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Gross charge (chargemaster price)

The hospital's full, undiscounted list price — pulled from its internal "chargemaster" price list. Almost no one actually pays this.

Example: A chest X-ray has a gross charge of $1,450. The same hospital's discounted cash price for the same X-ray is $180 — the gross charge mostly anchors negotiations, not what patients pay.

Full explanation →

The hospital's undiscounted list price — almost no one pays this.

$12.79 with Aetna vs $121.94 with Blue Shield — same scan, same building. Share

Negotiated rates by payer
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Negotiated rate

The price a specific insurance plan agreed to pay the hospital for a service — it varies by insurer, and even by plan within the same insurer.

Example: The same knee MRI has a negotiated rate of $904 with one insurer's PPO plan and $1,509 with another's — identical hospital, identical scan.

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Payer
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Payer

The insurance company footing the bill — Aetna, UnitedHealthcare, Medicare, and so on.

Example: "Blue Cross Blue Shield" is the payer. Its negotiated rate for an MRI might be $904, while a different payer's negotiated rate for the same scan is $1,509.

Full explanation →
Plan
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Plan

The specific product an insurer sells — e.g. "Blue Cross PPO 500" — which sets your deductible, coinsurance and negotiated rates.

Example: Two people both insured by Aetna can owe very different amounts for the same MRI: $50 with an HMO plan's flat copay, or the full $1,200 toward a high-deductible PPO plan's unmet deductible.

Full explanation →
Negotiated rate vs. cash
Aetna Medicare Managed Care Plan $12.79
Humana Choicecare Medicare Managed Care Plan $13.05
Central Health Plan Medicare Managed Care Plan $14.07
La Care Health Plan Covered Ca Exchange $16.63
Blue Cross Anthem Vivity City Of La Other Commercial Plan $18.14
Blue Cross Anthem Vivity Non City Of La Other Commercial Plan $20.43
Healthnet Ambetter Hmo $23.66
Unitedhealthcare All Commercial Plans $25.58
Unitedhealthcare Select/Navigate Hmo $25.58
Healthnet Ambetter Ppo $27.37
Cigna All Commercial Plans $31.74
Aetna All Commercial Plans $37.19
Blue Shield Epn/Ifp Benefit Exchange $39.70
Blue Shield Tandem Ppo/Blue High Performance Ppo/Epo $79.21
Blue Cross All Commercial Plans $81.93
Blue Shield Ppo/Epo $87.97
Blue Shield Hmo $87.97
Blue Shield Medicare Managed Care Plan $121.94

Visitor-reported prices

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Mayo ld_i lactate dehydrogenase isoenzymes at other California hospitals

Hospital City Cash price Negotiated range
Redwood City Medical Center Redwood City $33.60 $11.00 – $11.00
Santa Clara Medical Center SANTA CLARA $33.60 $11.00 – $11.00
Baldwin Park Medical Center BALDWIN PARK $103.48 $8.00 – $8.00
Riverside Medical Center RIVERSIDE $103.48 $8.00 – $8.00
Banner Lassen Medical Center Susanville $5.63 $2.56 – $18.76
Sacramento Medical Center SACRAMENTO $33.60 $11.00 – $11.00
Oakland Medical Center Oakland $33.60 $11.00 – $11.00
Walnut Creek Medical Center WALNUT CREEK $33.60 $11.00 – $11.00

All California hospitals for this procedure →