How much does Medicare pay for CPT 82310?

Medicare allowed an average of $5.02 per service and paid $5.02 of that, the balance being the patient's coinsurance and deductible (2024 data). Providers submitted an average of $20.76, which is what they billed rather than what they received — Medicare pays its fee schedule regardless of the charge.

What is CPT code 82310?

Calcium level, total. It was billed 521,932 times to 387,781 Medicare beneficiaries by 1,390 providers in 2024.

Does 82310 pay differently in an office than a hospital?

Yes. The allowed amount averaged $5.02 in an office setting and $5.06 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 82310 most?

Clinical Laboratory, with 386,660 services from 365 clinicians. Next are Hematology-Oncology, Rheumatology, Internal Medicine.

CPT 82310

Calcium level, total

$5.02Medicare-allowed amount per service, averaged across 521,932 services

Providers submitted

$20.76

Asking price, not received

Medicare allowed

$5.02

The fee schedule figure

Medicare paid

$5.02

Balance is patient coinsurance

Providers submitted an average of $20.76 for this code and Medicare allowed $5.02 — 4.1× 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 $5.02 (100%); the rest is the patient’s coinsurance and deductible.

Office pays differently to hospital

Office / non-facility: $5.02
Hospital / facility: $5.06

The facility rate is higher for this code, which is unusual and generally means the service depends on equipment or staffing a hospital carries. 521,918 services were billed in an office setting and 14 in a facility.

Services: 521,932
Beneficiaries: 387,781
Providers billing it: 1,390
Total allowed: $2,620,099

What Medicare pays for CPT 82310

Across 521,932 services billed by 1,390 providers to 387,781 beneficiaries, Medicare allowed an average of $5.02 per service. That is 1.3 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 82310

Specialty	Services	Beneficiaries	Avg allowed	Providers
Clinical Laboratory	386,660	309,244	$5.02	365
Hematology-Oncology	29,177	8,845	$5.04	54
Rheumatology	24,971	17,878	$5.05	189
Internal Medicine	23,079	13,298	$5.05	201
Family Practice	20,558	12,135	$5.06	151
Endocrinology	10,828	7,315	$5.05	120
Pathology	5,669	4,461	$5.05	40
Nurse Practitioner	4,035	3,096	$5.05	87
Physician Assistant	3,843	3,023	$5.04	54
Nephrology	3,197	1,786	$5.06	14
Urology	2,633	1,761	$5.02	33
Cardiology	1,181	752	$5.06	3
Pulmonary Disease	1,172	687	$5.06	6
Interventional Cardiology	1,042	478	$5.06	1
Obstetrics & Gynecology	618	428	$5.04	16

82310 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	66,256	$5.04	$5.04	110
Texas	61,005	$5.04	$5.04	45
Florida	54,475	$5.04	$5.06	87
New Jersey	45,122	$5.00	$5.01	24
North Carolina	42,591	$5.02	$5.02	83
Illinois	22,396	$5.01	$5.01	44
Ohio	22,374	$5.01	$5.02	40
Indiana	19,108	$5.03	$5.06	23
Massachusetts	18,145	$5.06	$5.06	168
South Carolina	16,946	$5.05	$5.06	58
Arizona	15,792	$4.95	$4.96	12
Minnesota	14,202	$5.04	$5.06	76
New York	12,920	$5.02	$5.03	51
Alabama	11,944	$5.02	$5.02	18
Kansas	9,286	$5.04	$5.05	19
Pennsylvania	7,984	$5.05	$5.06	47
Washington	7,239	$5.01	$5.02	22
Iowa	6,571	$5.04	$5.06	49
Georgia	6,207	$5.06	$5.06	29
Oregon	5,618	$5.03	$5.06	10
Maryland	5,329	$5.05	$5.06	25
Colorado	5,199	$4.95	$4.96	14
Michigan	4,629	$5.05	$5.05	22
Wisconsin	4,611	$5.01	$5.06	35
Oklahoma	4,413	$4.72	$4.73	14
Mississippi	4,223	$5.03	$5.06	53
Tennessee	3,914	$5.02	$5.02	13
Virginia	3,734	$5.02	$5.03	19
Hawaii	2,706	$5.04	$5.06	4
Nebraska	2,554	$5.03	$5.06	25
Louisiana	2,237	$5.03	$5.04	18
Arkansas	2,025	$5.05	$5.06	26
Kentucky	1,529	$5.02	$5.06	16
South Dakota	1,391	$5.05	$5.06	9
Missouri	1,313	$5.05	$5.06	22
Nevada	1,143	$5.06	$5.06	4
Utah	995	$5.06	$5.06	7
Rhode Island	778	$5.04	$5.06	2
New Hampshire	578	$5.05	$5.05	6
New Mexico	491	$5.00	$5.00	7
Idaho	476	$5.04	$5.06	6
District of Columbia	457	$5.06	$5.06	5
Connecticut	357	$4.75	$4.75	5
Maine	170	$4.76	$4.76	1
Montana	152	$5.06	$5.06	5
Puerto Rico	146	$5.03	$5.03	4
North Dakota	90	$5.06	$5.06	4
U.S. Virgin Islands	48	$5.06	$5.06	1
Wyoming	44	$5.06	$5.06	2
Delaware	19	$5.06	$5.06	1

Related codes

82306Vitamin d-3 level$28.96
82378Carcinoembryonic antigen (cea) protein level$18.54
82330Calcium level$13.39
82340Urine calcium level$5.91
82374Carbon dioxide (bicarbonate) level$4.67
82390Ceruloplasmin (protein) level$10.52
82365Infrared analysis of stone$12.63
82397Analysis using chemiluminescent technique (light and chemical )reactio$13.82
82384Catecholamines (organic nitrogen) level$24.65
82300Cadmium level$23.10
82308Calcitonin (hormone) level$26.16
82375Carboxyhemoglobin (protein) level$12.02

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.