Mark Twain Medical Center prices. From its own published file.

Mark Twain Medical Center in San Andreas, 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.

6,954prices published

Feb 2026file last updated

$358cash price for emergency visit, highest (level 5) (list $1,685)

Common services

Service	Cash price	List price	Insurers pay
Emergency visit, moderate (level 3) `99283`	$121	$651	$46.83–$1,099
Emergency visit, high (level 4) `99284`	$237	$1,162	$92.10–$1,928
Emergency visit, highest (level 5) `99285`	$358	$1,685	$139–$2,776
Comprehensive metabolic panel `80053`	$17.59	$134	$10.56–$236
Basic metabolic panel `80048`	$14.09	$123	$8.46–$221
Complete blood count (CBC) `85025`	$99.24	$149	$7.77–$146
Blood draw (venipuncture) `36415`	$6.00	$61.50	$5.53–$105
Urinalysis `81001`	$59.94	$90.00	$3.17–$88.20
Troponin (heart test) `84484`	$20.21	$173	$12.15–$310
EKG tracing `93005`	$248	$396	$18.82–$531
Chest X-ray, 2 views `71046`	$116	$174	$27.47–$171
CT head without contrast `70450`	$756	$1,135	$145–$1,112
CT abdomen and pelvis with contrast `74177`	$1,595	$2,395	$282–$2,347
MRI lower back without contrast `72148`	$1,673	$2,512	$267–$2,462
Ultrasound, abdomen `76700`	$519	$780	$119–$764
IV push, single drug `96374`	$84.59	$509	$32.86–$499
IV fluids, first hour `96360`	$10.66	$867	$4.14–$850
Colonoscopy, diagnostic `45378`	$427	$641	$166–$628
Upper GI endoscopy with biopsy `43239`	$711	$1,067	$269–$1,046
Knee arthroscopy `29881`	$946	$1,421	$368–$1,393
Vaginal delivery, routine care `59400`	—	—	$1,994–$1,994
Cesarean delivery, routine care `59510`	—	—	$1,995–$1,995

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: Mark Twain 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.