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Market snapshot

Nationwide CY2024

Medicare Part B FFS · CY2024 · as published by CMS
83883 Nephelometry, test method using light CPT · General Laboratory test
Classification Test General Laboratory Clinical Chemistry (CMS RBCS)
First observed 2013 — start of our 12-year window; the code predates it
National scale 105,167 services ▼ 17.8% YoY · 40,432 beneficiaries (CY2024, Medicare FFS)
Medicare paid $1.4M · $13.30 avg / service, national
CMS descriptor · RBCS classification · Medicare Part B physician/supplier claims, 12-year window
Billing groups
18
Named-group FFS services
47,972
FFS of Medicare
49%
Services YoY
-17.8%
FFS enrollment -2.2%
Estimated all-Medicare volume FFS + estimated MA estimate
~102,857 services

47,972 observed fee-for-service (47%) · ~54,885 estimated Medicare Advantage. Scaled from the observed floor by each state’s fee-for-service share (FFS share as of 2024) — scaled estimate — assumes MA utilization mirrors FFS; not an observation. How we scale

Top states — 83883 (CY2024)

Disclosed Medicare fee-for-service services by billing state; open a bar for that state's ranked market.

Named-group submitted charges
$3.6M
Named-group allowed amount
$638K
Named-group Medicare payments
$638K
Avg charge / svc
$75
Avg allowed / svc
$13
Avg payment / svc
$13
Average charge per group
$25 18 groups · avg submitted charge / service $566
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Data year: CY2024 CY2023 CY2022 locked column CY2021 locked column CY2020 locked column
Physician groups ranked by 83883 services, highest first, CY2024
# Physician group activate to sort City activate to sort St activate to sort Specialty activate to sort Providers activate to sort 83883 svcs sorted descending — activate to reverse Submitted charges activate to sort Avg charge activate to sort Medicare $ locked column Share* activate to sort Phone
1 AMERICAN ONCOLOGY PARTNERS PA FORT WAYNE FL HEMATOLOGY/ONCOLOGY 333 15,888 $651,408 $41 premium 61.2% (260) 484-8830
2 VIRGINIA CANCER SPECIALISTS, P.C. FAIRFAX VA HEMATOLOGY/ONCOLOGY 76 7,184 $1,264,384 $176 premium 96.9% (703) 280-5390
3 ONCOLOGY SPECIALTIES, P.C. HUNTSVILLE AL NURSE PRACTITIONER 93 7,177 $215,310 $30 premium 97.2% (256) 705-4224
4 CANCER SPECIALISTS LLC JACKSONVILLE FL HEMATOLOGY/ONCOLOGY 46 3,169 $95,033 $30 premium 12.2% (904) 516-3737
5 THE WEST CLINIC P.C. GERMANTOWN TN NURSE PRACTITIONER 113 2,931 $139,516 $48 premium 74.1% (901) 683-0055
6 UNIVERSITY CANCER AND BLOOD CENTER LLC ATHENS GA NURSE PRACTITIONER 56 2,536 $120,714 $48 premium 51.4% (706) 353-2990
7 ALLISON CURTIS KINGSLEY MEOZ MICHAEL AND SANCHEZ PC LAS VEGAS NV NURSE PRACTITIONER 71 2,488 $437,888 $176 premium 69.0% (702) 952-2140
8 CENTRAL ARKANSAS RADIATION THERAPY INSTITUTE INC LITTLE ROCK AR HEMATOLOGY/ONCOLOGY 90 2,147 $90,174 $42 premium 94.1%
9 NORTHWEST CANCER SPECIALISTS PC PORTLAND OR PHYSICIAN ASSISTANT 68 1,256 $221,056 $176 premium 83.5% (503) 280-1223
10 NORTH SHORE HEMATOLOGY ONCOLOGY ASSOCIATES PC SMITHTOWN NY NURSE PRACTITIONER 462 1,248 $31,200 $25 premium 26.5% (631) 751-3000
11 NORTHWEST CANCER SPECIALISTS PC PORTLAND WA PHYSICIAN ASSISTANT 68 612 $107,712 $176 premium 73.2% (503) 280-1223
12 BLOOD AND CANCER CENTER INC CANFIELD OH HEMATOLOGY/ONCOLOGY 4 271 $24,304 $90 premium 10.6% (330) 533-3040
13 AMERICAN ONCOLOGY PARTNERS PA FORT WAYNE GA HEMATOLOGY/ONCOLOGY 333 246 $10,084 $41 premium 5.0% (260) 484-8830
14 UNIVERSITY OF MARYLAND ST JOSEPH MEDICAL GROUP LLC TOWSON TN NURSE PRACTITIONER 292 200 $9,520 $48 premium 5.1% (410) 337-4877
15 WEST CENTRAL PATHOLOGY SPECIALISTS SC QUINCY IL PATHOLOGY 4 194 $109,850 $566 premium 8.6% 21722384006209
16 NEVADA ONCOLOGY SPECIALISTS TOY GOODMAN SAMLOWSKI PC LAS VEGAS NV HEMATOLOGY/ONCOLOGY 2 87 $15,312 $176 premium 2.4% (702) 473-1757
17 S2 HEALTH PLLC LAS VEGAS NV NURSE PRACTITIONER 2 82 $14,432 $176 premium 2.3% (775) 461-5773
18 OPTUM MEDICAL GROUP RHODES P C LAS VEGAS NV NURSE PRACTITIONER 57 82 $14,432 $176 premium 2.3% (702) 724-8787
19 IMC-DIAGNOSTIC AND MEDICAL CLINIC LLC MOBILE AL INTERNAL MEDICINE 167 79 $3,760 $48 premium 1.1%
20 FLORIDA CANCER SPECIALISTS AND RESEARCH INSTITUTE, LLC FORT MYERS FL HEMATOLOGY/ONCOLOGY 437 54 $2,570 $48 premium 0.2% (239) 561-9622
21 THE WEST CLINIC P.C. GERMANTOWN MS NURSE PRACTITIONER 113 41 $1,952 $48 premium 100.0% (901) 683-0055

*Share of the state's disclosed Medicare-FFS services for the primary code, counted once per clinician. "St" is the state the volume was billed from: a group appears in each state where its clinicians bill Medicare, with that state's volume and share ("City" is the group's registered location). Group figures sum clinicians affiliated with exactly one group; clinicians in several groups are listed in each group's drill-down but not volume-attributed to any single group, so shares reflect attributable volume. See Methods.

Comparing against an all-payer estimate?

These are exact counts from Medicare fee-for-service claims — roughly a third to half of most procedure markets, depending on payer mix. Modeled all-payer databases project the remainder statistically; we publish the audited floor and label it as such. Same market, different denominator. How the numbers reconcile →