CPT 83520 · 1,731 hospitals reporting

Measurement of substance using immunoassay technique

The same procedure costs $50 at one hospital and $1,963 at another — a 39× spread for what's billed under the same code. Median: $128.

Cheapest published

$50

339 entries below $50 already filtered. Remaining low values usually reflect partial-cost line items (professional fee only), not full bills.

Median across 1,731 hospitals

$128

The realistic middle of the cash-price distribution. Use this as your benchmark.

Most expensive

$1,963

Highest published price. Often a gross-charge "list price" rarely actually paid.

Price distribution

500 hospitals · log-scale x-axis

Each bar = number of hospitals charging in that price range. Emerald bar contains the median. Amber dots = entries we flagged as likely partial-cost line items (excluded from the table below).

Filter by state

Filter by your insurance

Sort

Why some prices look unrealistically low or high

Hospitals publish their machine-readable files (MRFs) the way they choose. A single procedure code can appear with very different prices depending on what's being charged:

Global price — facility + implant + anesthesia + surgeon. This is what you'd actually be billed.
Professional fee only — surgeon's portion. Often $500–$2,500 for a major procedure that costs $20K+ globally.
Facility fee only — operating room and recovery, no implant or surgeon.
Per-unit / per-minute charges — e.g. anesthesia time billed at $0.68/min appearing under a CPT code.
Rate multipliers — values like 0.85 meaning "85% of Medicare" rather than dollars.

We filter the most obvious artifacts (under $50, or 25× above the median), but rows in the $500–$2K range for a major procedure are typically professional-only and we can't always tell. Use the median and high-end as the realistic range; treat very low rows as partial-cost line items, not full bills.

500 hospitals reporting

Hospital	State	Gross	Cash price	Min negotiated	Max negotiated	Your insurer
SINAI-GRACE HOSPITAL	MI	$170	$128	—	—	0 insurers
DETROIT RECEIVING HOSPITAL	MI	$170	$128	—	—	0 insurers
HARBOR BEACH COMMUNITY HOSPITAL	MI	$170	$128	—	—	0 insurers
CHILDREN'S HOSPITAL OF MICHIGAN	MI	$170	$128	—	—	0 insurers
ABRAHAM LINCOLN MEMORIAL HOSPITAL	IL	$127	$127	—	—	5 insurers
UNIVERSITY HEALTH LAKEWOOD MEDICAL CENTER	MO	$230	$127	—	—	5 insurers
SHRINERS HOSPITALS FOR CHILDREN NORTHERN CALIF	CA	$126	$126	—	—	5 insurers
SHRINERS HOSPITAL FOR CHILDREN	IL	$126	$126	—	—	5 insurers
SHRINERS HOSPITALS FOR CHILDREN	MO	$126	$126	—	—	5 insurers
SHRINERS HOSPITALS FOR CHILDREN	OH	$126	$126	—	—	5 insurers
SHRINERS HOSPITALS FOR CHILDREN	SC	$126	$126	—	—	5 insurers
SHRINERS HOSPITALS FOR CHILDREN	TX	$126	$126	—	—	5 insurers
SHRINERS HOSPITAL FOR CHILDREN	WA	$126	$126	—	—	5 insurers
NORTHERN COCHISE COMMUNITY HOSPITAL, INC.	AZ	$210	$126	—	—	5 insurers
DALLAS COUNTY MEDICAL CENTER	AR	$194	$126	—	—	5 insurers
NORTHSIDE HOSPITAL FORSYTH	GA	—	$126	—	—	0 insurers
SHARE MEDICAL CENTER	OK	$199	$129	—	—	0 insurers
LORING HOSPITAL	IA	$157	$125	—	—	0 insurers
UNIVERSITY HOSPITALS PORTAGE MEDICAL CENTER	OH	$167	$125	—	—	2 insurers
WESTCHESTER MEDICAL CENTER	NY	$208	$125	—	—	5 insurers
OAKLEAF SURGICAL HOSPITAL	WI	$138	$124	$3.24	$133	5 insurers
SUNY/STONY BROOK UNIVERSITY HOSPITAL	NY	$131	$131	—	—	5 insurers
CLEVELAND AREA HOSPITAL	OK	$124	$124	—	—	5 insurers
CARLE BROMENN MEDICAL CENTER	IL	$131	$131	—	—	5 insurers
VIRTUA OUR LADY OF LOURDES HOSPITAL	NJ	$1,238	$124	—	—	5 insurers
VIRTUA MOUNT HOLLY HOSPITAL	NJ	$1,238	$124	—	—	5 insurers
SEQUOYAH COUNTY-CITY OF SALLISAW HOSPITAL AUTHORIT	OK	$165	$124	—	—	5 insurers
CHI HEALTH - MERCY CORNING	IA	$274	$132	$164	$269	5 insurers
CHI HEALTH - MERCY CORNING	IA	$274	$132	$17.27	$269	5 insurers
ST JOSEPH'S MEDICAL CENTER OF STOCKTON	CA	$419	$123	$301	$343	2 insurers
ST JOSEPH'S MEDICAL CENTER OF STOCKTON	CA	$419	$123	$14.68	$343	5 insurers
COMANCHE COUNTY HOSPITAL	KS	$123	$123	—	—	0 insurers
COMANCHE COUNTY MEMORIAL HOSPITAL	OK	$123	$123	—	—	0 insurers
UNION HOSPITAL CLINTON	IN	$220	$132	—	—	0 insurers
FAUQUIER HOSPITAL	VA	$307	$123	—	—	1 insurers
AURORA MEDICAL CTR WASHINGTON COUNTY	WI	$245	$123	—	—	5 insurers
AURORA ST LUKES MEDICAL CENTER	WI	$245	$123	—	—	5 insurers
AURORA BAYCARE MEDICAL CTR	WI	$245	$123	—	—	5 insurers
MCALESTER REGIONAL HEALTH CENTER	OK	$306	$122	$18.5	$288	5 insurers
UNITYPOINT HEALTH - MERITER	WI	$153	$122	—	—	4 insurers