John Muir Health Walnut Creek Medical Center prices. From its own published file.

John Muir Health Walnut Creek Medical Center in Walnut Creek, CA publishes its standard charges as required by federal rule. Here's what it lists for common services, and how to check your bill against it.

3,336prices published

Mar 2026file last updated

$31,187cash price for knee arthroscopy (list $88,149)

Common services

Service	Cash price	List price	Insurers pay
Emergency visit, moderate (level 3) `99283`	$1,700	$4,987	$44.60–$7,018
Emergency visit, high (level 4) `99284`	$3,232	$14,259	$68.35–$7,018
Emergency visit, highest (level 5) `99285`	$4,776	$21,298	$108–$27,025
Comprehensive metabolic panel `80053`	$757	$1,681	$9.19–$12,000
Basic metabolic panel `80048`	$432	$960	$7.27–$8,000
Complete blood count (CBC) `85025`	$32.26	$214	$6.75–$12,000
Blood draw (venipuncture) `36415`	$23.35	$9,688	$2.94–$66,399
Urinalysis `81001`	$160	$401	$2.77–$4,000
Troponin (heart test) `84484`	$62.73	$1,639	$8.47–$8,000
EKG tracing `93005`	$313	$695	$7.24–$12,000
Chest X-ray, 2 views `71046`	$298	$663	$18.72–$4,000
CT head without contrast `70450`	$1,243	$2,762	$63.10–$4,000
CT abdomen and pelvis with contrast `74177`	$1,987	$4,416	$205–$4,416
MRI lower back without contrast `72148`	$2,320	$5,156	$124–$5,156
Ultrasound, abdomen `76700`	$874	$1,943	$71.48–$4,000
IV push, single drug `96374`	$422	$939	$32.98–$12,000
IV fluids, first hour `96360`	$571	$1,269	$28.38–$4,000
Ketorolac injection, 15 mg `J1885`	$2.15	$25.38	$0.17–$12,000
Ondansetron injection `J2405`	$3.73	$9.43	$0.18–$4,000
Colonoscopy, diagnostic `45378`	$10,359	$27,337	$246–$21,354
Upper GI endoscopy with biopsy `43239`	$17,368	$41,514	$185–$21,354
Knee arthroscopy `29881`	$31,187	$88,149	$551–$53,372

Cash price: the discounted price for self-pay patients. List price: the hospital's gross charge. Insurers pay: the lowest and highest rates it lists for insurance plans. Source: John Muir Health Walnut Creek Medical Center price transparency page.

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Common billing problems to look for

Billed above the posted cash priceIf you're paying yourself, ask the hospital to apply its published cash price.
Panels billed inside panelsA basic metabolic panel (80048) billed with a comprehensive one (80053) on the same day.
Duplicate linesThe same service billed twice without explanation.
No itemized billYou can ask for every line with its code, date and amount.