How much does Medicare pay for CPT 33370?

Medicare allowed an average of $132.52 per service and paid $105.98 of that, the balance being the patient's coinsurance and deductible (2024 data). Providers submitted an average of $596.67, which is what they billed rather than what they received — Medicare pays its fee schedule regardless of the charge.

What is CPT code 33370?

Placement and subsequent removal of device to protect brain from embolism through catheter using imaging guidance. It was billed 3,671 times to 3,668 Medicare beneficiaries by 140 providers in 2024.

Which specialty bills 33370 most?

Interventional Cardiology, with 2,328 services from 81 clinicians. Next are Cardiology, Thoracic Surgery, Cardiac Surgery.

CPT 33370

Placement and subsequent removal of device to protect brain from embolism through catheter using imaging guidance

$132.52Medicare-allowed amount per service, averaged across 3,671 services

Providers submitted

$596.67

Asking price, not received

Medicare allowed

$132.52

The fee schedule figure

Medicare paid

$105.98

Balance is patient coinsurance

Providers submitted an average of $596.67 for this code and Medicare allowed $132.52 — 4.5× 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 $105.98 (80%); the rest is the patient’s coinsurance and deductible.

Services: 3,671
Beneficiaries: 3,668
Providers billing it: 140
Total allowed: $486,481

What Medicare pays for CPT 33370

Across 3,671 services billed by 140 providers to 3,668 beneficiaries, Medicare allowed an average of $132.52 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 33370

Specialty	Services	Beneficiaries	Avg allowed	Providers
Interventional Cardiology	2,328	2,326	$131.65	81
Cardiology	1,002	1,002	$134.41	42
Thoracic Surgery	130	130	$140.55	9
Cardiac Surgery	130	129	$131.90	4
Internal Medicine	81	81	$122.42	4

33370 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
New York	790	$151.47	$99.68	24
Ohio	336	$125.35	$101.20	8
South Carolina	330	$119.98	$101.18	7
Michigan	325	$135.94	$101.53	17
Pennsylvania	251	$131.54	$101.43	11
California	228	$127.70	$101.50	5
Texas	209	$125.62	$101.16	10
Colorado	169	$126.80	$101.48	5
Florida	161	$139.31	$101.11	9
Minnesota	123	$114.98	$101.45	5
Massachusetts	101	$131.61	$101.57	5
Tennessee	89	$117.54	$101.46	5
North Dakota	81	$118.92	$101.55	3
Illinois	75	$146.48	$101.45	4
Alabama	56	$121.28	$101.65	4
Montana	48	$123.64	$101.47	2
South Dakota	48	$111.59	$102.51	1
North Carolina	46	$122.93	$101.31	3
Oklahoma	41	$122.59	$101.42	2
Connecticut	34	$135.81	$101.28	2
New Jersey	30	$145.27	$101.45	2
Delaware	27	$126.85	$101.40	1
Wisconsin	18	$113.57	$101.04	1
District of Columbia	16	$140.05	$101.26	1
Arizona	14	$127.17	$101.66	1
Maryland	13	$137.27	$101.78	1
Kansas	12	$96.20	$101.50	1

Related codes

33361Replacement of aortic valve through the skin and femoral artery$730.87
33340Repair of left upper heart chamber$681.17

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.