How much does Medicare pay for CPT 86334?

Medicare allowed an average of $19.86 per service and paid $17.96 of that, the balance being the patient's coinsurance and deductible (2024 data). Providers submitted an average of $124.54, which is what they billed rather than what they received — Medicare pays its fee schedule regardless of the charge.

What is CPT code 86334?

Immunologic analysis technique on serum (immunofixation). It was billed 929,702 times to 635,341 Medicare beneficiaries by 1,793 providers in 2024.

Does 86334 pay differently in an office than a hospital?

Yes. The allowed amount averaged $21.18 in an office setting and $17.38 in a facility. The office rate is generally higher because the practice supplies the room, staff and equipment out of that single payment; in a hospital those are billed separately by the facility.

Which specialty bills 86334 most?

Pathology, with 444,483 services from 1,144 clinicians. Next are Clinical Laboratory, Hematology-Oncology, Medical Oncology.

CPT 86334

Immunologic analysis technique on serum (immunofixation)

$19.86Medicare-allowed amount per service, averaged across 929,702 services

Providers submitted

$124.54

Asking price, not received

Medicare allowed

$19.86

The fee schedule figure

Medicare paid

$17.96

Balance is patient coinsurance

Providers submitted an average of $124.54 for this code and Medicare allowed $19.86 — 6.3× 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 $17.96 (90%); the rest is the patient’s coinsurance and deductible.

Office pays differently to hospital

Office / non-facility: $21.18
Hospital / facility: $17.38

The office rate is higher because the practice supplies the room, staff and equipment out of that payment. In a hospital the facility bills those separately, so the clinician's share is smaller — the total cost to Medicare is usually higher, not lower. 606,049 services were billed in an office setting and 323,653 in a facility.

Services: 929,702
Beneficiaries: 635,341
Providers billing it: 1,793
Total allowed: $18,463,882

What Medicare pays for CPT 86334

Across 929,702 services billed by 1,793 providers to 635,341 beneficiaries, Medicare allowed an average of $19.86 per service. That is 1.5 services per beneficiary, so this is a code patients typically receive more than once. 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 86334

Specialty	Services	Beneficiaries	Avg allowed	Providers
Pathology	444,483	309,480	$17.76	1,144
Clinical Laboratory	433,092	294,515	$21.79	204
Hematology-Oncology	37,784	21,476	$21.80	291
Medical Oncology	6,500	3,886	$21.80	60
Allergy/ Immunology	2,178	1,704	$18.37	2
Internal Medicine	1,996	1,507	$21.10	25
Nurse Practitioner	821	585	$21.73	22
Hematology	584	402	$21.68	6
Rheumatology	574	451	$19.69	6
Hospitalist	414	297	$21.84	2
General Surgery	341	330	$18.79	1
Nephrology	200	198	$21.78	9
Emergency Medicine	184	107	$21.80	3
Hematopoietic Cell Transplantation and Cellular Therapy	167	72	$21.78	1
Physician Assistant	131	93	$21.89	5

86334 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
Florida	141,576	$19.73	$17.68	105
New Jersey	99,489	$21.54	$21.05	62
California	78,791	$20.83	$19.06	87
Texas	70,772	$20.78	$19.77	67
New York	67,284	$20.37	$18.03	174
North Carolina	54,498	$20.10	$18.82	42
Massachusetts	44,977	$19.03	$14.86	54
Ohio	41,399	$18.81	$16.50	96
Illinois	33,293	$18.68	$15.25	112
Pennsylvania	23,638	$18.64	$15.74	65
Georgia	22,492	$20.21	$18.78	48
Tennessee	21,780	$20.41	$19.55	86
Virginia	21,540	$20.05	$18.58	90
Alabama	19,158	$20.06	$18.87	34
Wisconsin	17,782	$18.23	$15.61	53
Michigan	16,469	$17.69	$14.05	63
Kansas	12,160	$20.09	$18.75	7
Maryland	11,202	$19.81	$17.63	31
Washington	10,644	$20.66	$18.71	18
Colorado	10,450	$20.20	$18.66	41
Iowa	10,396	$17.36	$14.02	36
Arizona	10,029	$20.65	$19.67	15
Arkansas	9,373	$17.16	$14.37	25
Connecticut	7,107	$18.14	$13.13	29
Indiana	6,572	$17.54	$14.73	39
Minnesota	6,114	$17.67	$14.16	64
Missouri	5,682	$17.06	$13.24	35
Nevada	5,614	$21.84	$21.83	34
Utah	4,909	$17.31	$14.17	12
Kentucky	4,860	$17.45	$14.24	23
Oklahoma	3,973	$19.61	$18.19	12
Oregon	3,831	$18.96	$15.72	18
Nebraska	3,544	$19.20	$17.46	11
Rhode Island	3,053	$18.48	$15.05	7
South Carolina	2,997	$16.61	$12.80	11
Maine	2,834	$18.96	$16.43	7
Vermont	2,635	$16.87	$12.35	4
Louisiana	2,610	$18.01	$15.12	11
North Dakota	2,333	$17.36	$13.52	7
Hawaii	2,301	$19.77	$17.84	5
Delaware	2,051	$17.02	$12.98	3
Mississippi	1,677	$16.99	$13.28	11
New Mexico	1,674	$21.84	$21.80	2
New Hampshire	1,288	$17.07	$12.97	5
South Dakota	923	$19.80	$18.20	10
Idaho	817	$16.98	$13.18	9
District of Columbia	347	$18.16	$13.08	3
West Virginia	208	$16.93	$12.44	2
Montana	202	$17.07	$13.06	3
U.S. Virgin Islands	165	$21.55	$21.78	2
ZZ	138	$17.35	$13.56	1
Puerto Rico	51	$21.89	$21.89	2

Related codes

86376Microsomal antibodies (autoantibody) measurement$14.24
86300Immunologic analysis for detection of tumor antigen$20.21
86364Measurement of tissue transglutaminase$11.29
86317Detection of infectious agent antibody$14.63
86335Immunologic analysis technique on body fluid$24.16
86304Immunologic analysis for detection of tumor antigen$20.36
86301Immunologic analysis for detection of tumor antigen$20.37
86381Measurement of mitochondrial antibody$24.88
86360T cell count and ratio$45.96
86341Islet cell (pancreas) antibody measurement$23.07
86316Analysis for detection of tumor marker$20.36
86320Immunologic analysis technique on serum$22.61

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.