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CA price data · 189 hospitals

Diagnostic mammogram (both breasts) cost in CA

What a diagnostic mammogram (both breasts) costs at CA hospitals — and the fair price to aim for.

Pillar 1 · The BaseRate™ CompositeHow 1.00× Fair BaseRate Works: Raw price averages unfairly penalize hospitals in high-wage cities or trauma centers treating sicker patients. We adjust for local CMS hospital wage levels and patient complexity first. A 1.00× score means right at the fair price average, 0.85× means 15% cheaper than fair market, and 1.30× means 30% above fair market.Above Fair Market · Negotiate
1.14×vs. Fair Market Price
Position vs. 1.00× Fair Price+14% Above Fair Price 1.00× (center of the bar) is the U.S. fair price average after accounting for local hospital wages and patient complexity. Left of center (<1.00×) is below fair price; right of center (>1.00×) is above fair price.

Typical commercial prices here are +14% above the fair benchmark (1.14×) even after accounting for local nurse/doctor wages and patient complexity.

Pillar 2 · VeriRate™ Data TrustHow VeriRate™ (0–100) Works: Hospitals are legally required to publish machine-readable price files, but some bury fake $0.01 numbers or omit cash discounts. VeriRate audits each file across 5 checks (hover any badge below to see what it tests).86/100 · Verified
86/100Hover Any Check Below to See How Prices Were Audited
File Completeness90Provenance (File Completeness): Checks whether the hospital published a complete, up-to-date machine-readable price file with valid CPT and MS-DRG billing codes instead of leaving blanks.
Price Logic88Coherence (Price Logic): Checks whether the hospital’s numbers make basic sense — e.g., self-pay cash price is lower than gross list price, with no fake $0.01 or $999,999 placeholder numbers.
Peer Alignment86Concordance (Peer Alignment): Checks whether reported prices sit in a realistic range compared to Medicare and nearby hospitals rather than wild 100× unit errors.
Clean Billing83Regularity (Clean Billing): Checks whether rates are structured consistently across procedures without erratic statistical spikes or hidden unbundled facility fees.
Real Cash Discount84Cash Honesty (Real Cash Discount): Checks whether the hospital offers a genuine self-pay cash discount that beats or matches commercial insurance rates instead of billing full sticker price.
Pillar 3 · Clinical Quality & ER SpeedChecks whether higher hospital prices actually buy better clinical quality — combining CMS Star Ratings, hospital safety scores, and emergency room wait times.Regional Quality Benchmark
CMS Star RatingNot RatedOfficial CMS Overall Hospital Quality Star Rating (1 to 5 stars) summarizing mortality, safety of care, readmissions, and patient experience.
Safety ScoreNot ScoredComposite patient safety score (0–100) derived from CMS hospital-acquired infection rates (CLABSI, CAUTI, MRSA, C. diff), surgical complications, and HCAHPS surveys.
Typical ER WaitNo ER DataMedian minutes patients spent in the emergency department before leaving from the visit, as reported to CMS Timely and Effective Care.

Balances commercial hospital prices against CMS clinical safety, infection control, and patient experience.

Behavioral Pricing FingerprintLow Shoppable & Low Captive

Uniform Value Leader

Kern Medical Center maintains disciplined commercial pricing across both elective shoppable care (0.7× Medicare) and captive emergency/ancillary departments (0.6× Medicare). Patients and health plans benefit from predictable, below-benchmark rates (0.67× Fair BaseRate) without hidden ancillary cross-subsidization.

#5 of 240 in CA · 1st State Percentile#110 of 3,385 in U.S. · 3rd National Percentile
Advantage

Where They're Good (Patient & Payer Edge)

  • Elective shoppable care is priced 33% below peer Fair BaseRate (0.67×)
  • Self-pay cash beats commercial insurance on 26% of shoppable procedures (98/100 Cash Honesty)
  • 1-Star CMS clinical rating with 57% patient recommendation (54/100 safety score)
  • Binding Good Faith Estimate rights under 45 CFR § 149.610 protect self-pay patients before scheduling
Watchout

Where You Can Get Burned (Markup Traps)

  • Even at low-cost facilities (1.14× Fair BaseRate), out-of-network or unnegotiated chargemaster bills can exceed commercial medians — confirm in-network status or request a self-pay cash quote up front.
  • Commercial insurance median sits at 0.62× Fair BaseRate (0.7× Medicare), so insured patients should always compare the self-pay cash price before paying.
  • Even at low-cost facilities (1.14× Fair BaseRate), out-of-network or unnegotiated chargemaster bills can exceed commercial medians — confirm in-network status or request a self-pay cash quote up front.
  • Unnegotiated chargemaster list prices average 4.1× Medicare (26¢ true HCRIS cost per $1 gross)
Front-Door ShoppableElective / Imaging
0.7× Medicare

Pre-scheduled outpatient procedures where patients can comparison-shop.

Back-Door Captive & ER0.86× Divergence
0.6× Medicare

Emergency, inpatient DRG, lab, and specialty drug lines billed after admission.

Quantile Tail Spread+13% Upper Tail
Q25 0.35× · Q50 0.62× · Q75 0.70×

Detects median-gaming when upper-quartile codes spike above the p50 median.

Select any lens to inspect department markups, federal cost accounting, or insurer discounts.
Department & Integrity Multiples (vs. CMS Medicare Cost Anchor) Green ≤1.3× · Teal 1.3–1.8× · Amber 1.8–2.5× · Rose >2.5×
Front-Door Shoppable CareFront-Door Shoppable
0.7× MedicareGood
Outpatient Surgery & ORBack-Door Captive
0.6× MedicareGood
Diagnostic Imaging (CT/MRI)Front-Door Shoppable
0.6× MedicareGood
Back-Door Captive ER VisitsBack-Door Captive
3.2× MedicareElevated
Inpatient Lab & PathologyBack-Door Captive
0.7× MedicareGood
Specialty & Infusion Drugs (J-Codes)Back-Door Captive
0.5× MedicareGood
Self-Pay Cash Honesty & 501(r)Integrity & Outcomes
26% Cash Edge · 98/100Good
CMS Clinical Safety & Star ValueIntegrity & Outcomes
1 CMS · 54/100Elevated
The BaseRate · CA 189 hospitals
Fair price · the BaseRate
$163
what it should cost in CA
Typically charged
$168
median across CA hospitals

In general, CA hospitals charge about the fair price for this. how we calculate the BaseRate →

modeled estimate · not a bill or quote

Compared with the rest of the country, CA’s fair BaseRate ($163) is about the same as the national fair price of $148.

Cheapest CA hospitals for a diagnostic mammogram (both breasts)

Inline Bill X-Ray & 501(r) Calculator 501(c)(3) Nonprofit · Free Care ≤200% FPL · AGB Cap 36.3%

Audit a Bill or Quote at CA Hospital Benchmark (Zero PHI Required)

Fair BaseRate™ $163
Medicare Rate $95
Self-Pay Cash Request Quote
Insurer Median $168
Pre-filled with CA Hospital Benchmark’s charged/list benchmark
Screened against 2026 HHS Federal Poverty Guidelines
2026 FPL: $15,650 + $5,500 per additional person
Step 1 · 501(r) Charity Care Check 501(r) AGB Cap: $146 (274% FPL)

Statutory 501(r) AGB Cap Limits Bill to $146

At 274% FPL (201%–400% FPL tier), 26 U.S.C. § 501(r)(5) caps FAP-eligible bills at Amounts Generally Billed (36.3% of gross = $146).

Step 2 · Cash vs. Insurance Arbitrage Request Prompt-Pay Quote

Compare Prompt-Pay Cash Rate Against Remaining Deductible

Ask CA Hospital Benchmark's billing desk for their written 45 CFR § 180 discounted self-pay cash price and Good Faith Estimate under the No Surprises Act.

Step 3 · Fair BaseRate Target +$240 Above Fair BaseRate

Negotiate Toward $163 Fair BaseRate ($95 Medicare)

Your bill ($403) is $240 above the denoised Fair BaseRate ($163) and 4.2× the $95 Medicare rate.

1-Click Factual Dispute Summary: Copy a citation-backed benchmark memo (with CMS CCN, CPT code, Medicare reference, Fair BaseRate, and 26 U.S.C. § 501(r) calculations) to paste into patient-portal messages or billing appeals.
Diagnostic mammogram (both breasts) cost nationally → All CA hospital prices →