SelfPayRates — hospital cash prices, from the source

Partial thromboplastin time (PTT) clotting test in San Jose-Sunnyvale-Santa Clara, CA

Cash prices at 5 facilities across 5 cities for code 85730, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 23, 2026; the hospital files themselves were last updated between Mar 31, 2026 and Apr 1, 2026.

HospitalCash price List priceOffFile date
El Camino Hospital MOUNTAIN VIEW, CA
HC 31102493 LABACLPTT THROMBOPLASTIN PTT *5
$7.09 $28.35 75% Apr 1, 2026
file
El Camino Hospital MOUNTAIN VIEW, CA
HC PTT INHIBITOR SCREEN, APTT PTTINH THROMPLAS *5 1/6
$7.61 $30.45 75% Apr 1, 2026
file
El Camino Hospital MOUNTAIN VIEW, CA
HC PTT INHIBITOR SCREEN, 5 MIN NORM PTT (1:1 INCUBATED MIX W/ NP) *5 4/6
$7.61 $30.45 75% Apr 1, 2026
file
El Camino Hospital MOUNTAIN VIEW, CA
HC PTT
$114.75 $459.00 75% Apr 1, 2026
file
KAISER FOUNDATION HOSPITAL - SAN JOSE SAN JOSE, CA
THROMBOPLASTIN TIME PARTIAL PLASMA/WHOLE BLOOD
$141.68 $253.00 44%
file
KAISER FOUNDATION HOSPITAL - SANTA CLARA SANTA CLARA, CA
THROMBOPLASTIN TIME PARTIAL PLASMA/WHOLE BLOOD
$141.68 $253.00 44%
file
Stanford Health Care STANFORD, CA
HC Thromplas Ptt
$225.60 $564.00 60% Apr 1, 2026
file
Stanford Health Care STANFORD, CA
HC Pttinh 5 Min Norm Plasma
$225.60 $564.00 60% Apr 1, 2026
file
Stanford Health Care STANFORD, CA
Labaclptt Thromboplastin Ptt
$225.60 $564.00 60% Apr 1, 2026
file
LUCILE SALTER PACKARD CHILDREN'S HOSPITAL AT STANFORD PALO ALTO, CA
HC Ptt Inh 1 Hr Pt
$231.50 $463.00 50% Mar 31, 2026
file
LUCILE SALTER PACKARD CHILDREN'S HOSPITAL AT STANFORD PALO ALTO, CA
HC Ptt Inh 5 Min Pt
$231.50 $463.00 50% Mar 31, 2026
file
LUCILE SALTER PACKARD CHILDREN'S HOSPITAL AT STANFORD PALO ALTO, CA
HC Pttinh 1 Hr Normal Plasma
$231.50 $463.00 50% Mar 31, 2026
file
LUCILE SALTER PACKARD CHILDREN'S HOSPITAL AT STANFORD PALO ALTO, CA
HC Lupus Anticoag Ptt
$231.50 $463.00 50% Mar 31, 2026
file
LUCILE SALTER PACKARD CHILDREN'S HOSPITAL AT STANFORD PALO ALTO, CA
HC Aptt
$240.00 $480.00 50% Mar 31, 2026
file
LUCILE SALTER PACKARD CHILDREN'S HOSPITAL AT STANFORD PALO ALTO, CA
HC Thromplas Ptt
$282.00 $564.00 50% Mar 31, 2026
file
LUCILE SALTER PACKARD CHILDREN'S HOSPITAL AT STANFORD PALO ALTO, CA
HC Labaclptt Thromboplastin Ptt
$282.00 $564.00 50% Mar 31, 2026
file
LUCILE SALTER PACKARD CHILDREN'S HOSPITAL AT STANFORD PALO ALTO, CA
HC Pttinh 5 Min Normal Plasma
$282.00 $564.00 50% Mar 31, 2026
file
LUCILE SALTER PACKARD CHILDREN'S HOSPITAL AT STANFORD PALO ALTO, CA
HC Thromboplastin Time Ptt Plasma
$310.00 $620.00 50% Mar 31, 2026
file

Outpatient: lowest $7.09, median $228.55, highest $310.00 — a 43.7× difference within the same market.

As an inpatient, the same code is billed by 4 facilities here, median $141.68. Inpatient and outpatient prices are not comparable and are kept on separate pages: the inpatient charge covers admission, not the same purchase.

Other markets for this procedure