How much does Medicare pay for CPT 87328?

Medicare allowed an average of $13.52 per service and paid $13.52 of that, the balance being the patient's coinsurance and deductible (2024 data). Providers submitted an average of $100.85, which is what they billed rather than what they received — Medicare pays its fee schedule regardless of the charge.

What is CPT code 87328?

Detection test by immunoassay technique for cryptosporidium (parasite). It was billed 19,209 times to 18,554 Medicare beneficiaries by 110 providers in 2024.

Which specialty bills 87328 most?

Clinical Laboratory, with 18,470 services from 99 clinicians. Next are Pathology, Family Practice, Hematology-Oncology.

CPT 87328

Detection test by immunoassay technique for cryptosporidium (parasite)

$13.52Medicare-allowed amount per service, averaged across 19,209 services

Providers submitted

$100.85

Asking price, not received

Medicare allowed

$13.52

The fee schedule figure

Medicare paid

$13.52

Balance is patient coinsurance

Providers submitted an average of $100.85 for this code and Medicare allowed $13.52 — 7.5× less. That gap is normal and means nothing on its own: Medicare pays its fee schedule regardless of what is billed, so the submitted figure describes a hospital chargemaster, not a price anyone paid. Of the allowed amount Medicare paid $13.52 (100%); the rest is the patient’s coinsurance and deductible.

Services: 19,209
Beneficiaries: 18,554
Providers billing it: 110
Total allowed: $259,706

What Medicare pays for CPT 87328

Across 19,209 services billed by 110 providers to 18,554 beneficiaries, Medicare allowed an average of $13.52 per service. The allowed amount is the figure that matters: it is what Medicare and the patient together owe, set by the fee schedule and adjusted for local practice costs. What a provider chose to submit has no bearing on it.

Who bills 87328

Specialty	Services	Beneficiaries	Avg allowed	Providers
Clinical Laboratory	18,470	17,826	$13.53	99
Pathology	440	433	$13.48	6
Family Practice	207	203	$13.47	1
Hematology-Oncology	51	51	$13.38	1
Nurse Practitioner	30	30	$13.54	2
Internal Medicine	11	11	$13.54	1

87328 reimbursement by state

Two different numbers. Allowed is what Medicare actually allowed in that state, which includes the local practice-cost adjustment. Standardized strips that geographic adjustment out of the payment, so it is the column to use when comparing states — a difference there reflects how the code was billed, not what it costs to run a practice locally.

State	Services	Allowed	Standardized pmt	Providers
California	2,696	$13.54	$13.54	16
North Carolina	1,770	$13.54	$13.54	2
New Jersey	1,721	$13.53	$13.54	3
Ohio	1,563	$13.51	$13.54	7
Florida	1,405	$13.54	$13.54	7
New York	1,298	$13.52	$13.54	6
Missouri	1,063	$13.54	$13.54	1
Texas	1,001	$13.54	$13.54	5
Arizona	829	$13.52	$13.54	2
Washington	746	$13.52	$13.54	5
Massachusetts	681	$13.54	$13.54	3
Illinois	560	$13.54	$13.54	2
Virginia	495	$13.50	$13.54	3
Alabama	407	$13.54	$13.54	5
Pennsylvania	389	$13.48	$13.54	5
Oklahoma	364	$13.49	$13.54	4
Tennessee	348	$13.54	$13.54	1
Wisconsin	295	$13.50	$13.54	4
Indiana	254	$13.44	$13.54	1
Oregon	249	$13.50	$13.54	4
Maryland	225	$13.54	$13.54	1
Kentucky	194	$13.41	$13.54	1
Rhode Island	99	$13.54	$13.54	1
South Dakota	85	$13.43	$13.54	3
Utah	68	$13.54	$13.54	3
Colorado	59	$13.54	$13.54	1
North Dakota	58	$13.54	$13.54	2
Iowa	58	$13.54	$13.54	2
Maine	37	$13.54	$13.54	1
Nebraska	37	$13.22	$13.54	1
Minnesota	36	$13.12	$13.54	1
Georgia	32	$13.27	$13.54	2
Montana	24	$13.54	$13.54	1
Louisiana	19	$13.54	$13.54	1
Nevada	18	$13.54	$13.54	1
Michigan	13	$13.54	$13.54	1
Kansas	13	$13.54	$13.54	1

Related codes

87340Detection test by immunoassay technique for hepatitis b surface antige$10.10
87389Detection test by immunoassay technique for hiv-1 antigen and hiv-1 an$23.57
87324Detection test by immunoassay technique for clostridium difficile toxi$11.73
87338Detection test by immunoassay technique for helicobacter pylori (gi tr$14.03
87329Detection test by immunoassay technique for giardia (intestinal parasi$11.73
87350Detection test by immunoassay technique for hepatitis be surface antig$11.29
87385Detection test by immunoassay technique for histoplasma capsulatum (pa$12.96
87305Detection test by immunoassay technique for aspergillus (fungus)$11.72
87341Detection test by immunoassay technique for hepatitis b surface antige$10.06

Billing this code is not the same as earning it

An allowed amount is revenue to a practice, not income to a clinician. It funds staff, premises, equipment and supplies before anyone is paid. What clinicians actually earn is published separately by the Department of Labor, and what industry pays them is published separately again by CMS — this site carries both.

What doctors are paid →·Look up a clinician →·All procedure codes →

Where this comes from. CMS Medicare Physician & Other Practitioners, by Provider and Service, 2024. It covers fee-for-service Original Medicare Part B only — not Medicare Advantage, not Medicaid, and not commercial insurance, which typically pays more for the same code.

How it is averaged. CMS publishes one average per provider per code. Every figure here is re-weighted by the number of services, so a clinician who billed the code 4,000 times counts 4,000 times more than one who billed it twice. CMS also suppresses any provider-code pair with fewer than 11 beneficiaries, so low-volume practice is missing from these totals by design.