Scans and imaging CPT 73721 Outpatient

MRI of knee or other lower-limb joint, no contrast dye in San Francisco-Oakland-Fremont, CA

In San Francisco-Oakland-Fremont, CA, 11 hospitals list a cash price for MRI of knee or other lower-limb joint, no contrast dye: from $3,438.40 to $10,419.00, with a median of $3,438.40. The lowest listed price is at Kaiser Foundation Hospital - Walnut Creek.

Cash prices at 11 facilities across 10 cities for code 73721, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 23, 2026; the hospital files themselves were last updated between Apr 1, 2026 and Jul 22, 2026.

Lowest$3,438.40Kaiser Foundation Hospital - Walnut Creek
Median$3,438.40half pay less
Highest$10,419.00in this market
Difference3.0×highest vs lowest

Where each hospital's price falls

Each dot is one hospital's cash price on a scale from the lowest to the highest in San Francisco-Oakland-Fremont, CA.

median
Lowest $3,438.40Highest $10,419.00

Hospitals, cheapest first

HospitalCash price List priceOff listFile date
Kaiser Foundation Hospital - Walnut Creek lowest Walnut Creek, CA MRI ANY JT LOWER EXTREM W/O CONTRAST MATRL $3,438.40 $6,140.00 44%
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Kaiser Foundation Hospital - Antioch Antioch, CA MRI ANY JT LOWER EXTREM W/O CONTRAST MATRL $3,438.40 $6,140.00 44%
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Kaiser Foundation Hospital - Fremont Fremont, CA MRI ANY JT LOWER EXTREM W/O CONTRAST MATRL $3,438.40 $6,140.00 44%
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Kaiser Foundation Hospital - Oakland/Richmond Oakland, CA MRI ANY JT LOWER EXTREM W/O CONTRAST MATRL $3,438.40 $6,140.00 44%
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Kaiser Foundation Hospital - Redwood City Redwood City, CA MRI ANY JT LOWER EXTREM W/O CONTRAST MATRL $3,438.40 $6,140.00 44%
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Kaiser Foundation Hospital - San Francisco San Francisco, CA MRI ANY JT LOWER EXTREM W/O CONTRAST MATRL $3,438.40 $6,140.00 44%
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Kaiser Foundation Hospital - San Leandro San Leandro, CA MRI ANY JT LOWER EXTREM W/O CONTRAST MATRL $3,438.40 $6,140.00 44%
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Kaiser Foundation Hospital - San Rafael San Rafael, CA MRI ANY JT LOWER EXTREM W/O CONTRAST MATRL $3,438.40 $6,140.00 44%
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Kaiser Foundation Hospital - South San Francisco South San Francisco, CA MRI ANY JT LOWER EXTREM W/O CONTRAST MATRL $3,438.40 $6,140.00 44%
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Stanford Health Care Tri-Valley Pleasanton, CA MRI Lwr Ext Jnt WO Contrast $3,484.80 $8,712.00 60% Apr 1, 2026
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Chinese Hospital Association San Francisco, CA MRI scan of leg joint without contrast $10,419.00 $10,419.00 Jul 22, 2026
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Outpatient: lowest $3,438.40, median $3,438.40, highest $10,419.00 — a 3.0× difference within the same market.

As an inpatient, the same code is billed by 10 facilities here, median $3,438.40. Inpatient and outpatient prices are not comparable and are kept on separate pages: the inpatient charge covers admission, not the same purchase.

What it is

An MRI of a lower-limb joint makes detailed pictures of the joint, usually the knee, though the code also covers the hip and ankle. It shows ligaments, cartilage, the meniscus and tendons that do not show on X-rays. No contrast dye is used.

What the price covers

The hospital price usually covers the scan of one joint. The radiologist's reading is often billed separately.