A9541 — Technetium tc-99m sulfur colloid, diagnostic, per study dose, up to 20 millicuries
1,659 observed fee-for-service (51%) · ~1,619 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
Disclosed Medicare fee-for-service services by billing state; open a bar for that state's ranked market. Average submitted charge / service by billing state, among the highest-volume states; open a bar for that state's ranked market.
- Market position — where this market sits on volume and growth among all state markets, and its rank.
- Worth a look — every state market for this search, ranked by a published score: size, growth, fragmentation, below-expected volume.
- Lookalike opportunities — groups billing below what peers of the same specialty, size, and state predict, with the expected figure shown.
- National benchmarks — where each group's volume sits nationally and within its specialty.
- Market structure — how concentrated this market is, and who owns the volume.
- Medicare-wide scaling — the exact payer split, and this market total scaled to all of Medicare, labeled as an estimate.
Nevvi's market analytics platform — code baskets, market structure and share, the twelve-year trend layer — is built and not launched yet. We're gathering interest in it.
Notify me at launch →| # | Physician group | City | St | Specialty | Providers | A9541 svcs | Submitted charges | Avg charge | Medicare $ locked column | Share* | Phone |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | MAYO CLINIC ARIZONA | PHOENIX | AZ | PHYSICIAN ASSISTANT | 1635 | 234 | $105,534 | $451 | premium | 55.6% | (800) 603-0558 |
| 2 | ZWANGER AND PESIRI RADIOLOGY GROUP LLP | LINDENHURST | NY | DIAGNOSTIC RADIOLOGY | 91 | 124 | $11,510 | $93 | premium | 43.2% | (631) 225-7200 |
| 3 | ADVANCED RADIOLOGY P A | BALTIMORE | MD | DIAGNOSTIC RADIOLOGY | 161 | 119 | $36,890 | $310 | premium | 31.2% | (888) 972-9700 |
| 4 | MAYO CLINIC JACKSONVILLE | JACKSONVILLE | FL | NURSE PRACTITIONER | 1587 | 112 | $50,512 | $451 | premium | 17.6% | (904) 953-2000 |
| 5 | SUTTER VALLEY MEDICAL FOUNDATION | SACRAMENTO | CA | DIAGNOSTIC RADIOLOGY | 2420 | 104 | $18,672 | $180 | premium | 19.5% | (916) 681-8852 |
| 6 | SDMI, LLC | LAS VEGAS | NV | DIAGNOSTIC RADIOLOGY | 36 | 75 | $9,689 | $129 | premium | 100.0% | (702) 732-6000 |
| 7 | LAKE MEDICAL IMAGING AND BREAST CENTER AT THE VILLAGES LLC | LEESBURG | FL | DIAGNOSTIC RADIOLOGY | 22 | 69 | $5,078 | $74 | premium | 10.8% | (352) 787-5858 |
| 8 | RADIOLOGY REGIONAL CENTER P A | FORT MYERS | FL | DIAGNOSTIC RADIOLOGY | 52 | 63 | $20,745 | $329 | premium | 9.9% | (239) 936-2316 |
| 9 | COMMUNITY RADIOLOGY ASSOCIATES INC | FREDERICK | MD | DIAGNOSTIC RADIOLOGY | 62 | 63 | $21,695 | $344 | premium | 16.5% | (888) 601-0943 |
| 10 | THE IOWA CLINIC PC | WEST DES MOINES | IA | PHYSICIAN ASSISTANT | 302 | 63 | $25,830 | $410 | premium | 70.0% | (515) 343-1000 |
| 11 | RADIOLOGY ASSOCIATES OF VENICE AND ENGLEWOOD PA | VENICE | FL | DIAGNOSTIC RADIOLOGY | 8 | 58 | $11,484 | $198 | premium | 9.1% | (941) 486-3483 |
| 12 | RADIOLOGY ASSOCIATES LLP | CORPUS CHRISTI | TX | DIAGNOSTIC RADIOLOGY | 15 | 57 | $10,961 | $192 | premium | 11.2% | (361) 887-7000 |
| 13 | HARBIN CLINIC LLC | ROME | GA | NURSE PRACTITIONER | 252 | 39 | $17,745 | $455 | premium | 69.6% | (762) 235-3340 |
| 14 | SPRINGFIELD CLINIC, LLP | SPRINGFIELD | IL | NURSE PRACTITIONER | 686 | 34 | $15,681 | $461 | premium | 33.7% | (217) 544-6464 |
| 15 | ADVANCED IMAGING CONCEPTS PL | BROOKSVILLE | FL | DIAGNOSTIC RADIOLOGY | 5 | 29 | $5,800 | $200 | premium | 4.5% | (352) 597-0016 |
| 16 | THE NEW JERSEY IMAGING NETWORK, LLC | CEDAR KNOLLS | NJ | DIAGNOSTIC RADIOLOGY | 71 | 29 | $8,990 | $310 | premium | 36.2% | (973) 695-1290 |
| 17 | H LEE MOFFITT CANCER CTR AND RES INST LIFE TIME CANCER SCRN CTR INC | TAMPA | FL | PHYSICIAN ASSISTANT | 1103 | 29 | $4,060 | $140 | premium | 4.5% | (813) 745-4673 |
| 18 | CENTRAL ARKANSAS RADIATION THERAPY INSTITUTE INC | LITTLE ROCK | AR | HEMATOLOGY/ONCOLOGY | 90 | 24 | $8,400 | $350 | premium | 100.0% | — |
| 19 | NEW YORK UNIVERSITY | NEW YORK | NY | DIAGNOSTIC RADIOLOGY | 5704 | 24 | $43,176 | $1,799 | premium | 8.4% | (212) 263-9700 |
| 20 | OPTUM MEDICAL CARE PC | MOUNT KISCO | NY | INTERNAL MEDICINE | 1040 | 21 | $59,010 | $2,810 | premium | 7.3% | (914) 241-1050 |
| 21 | BRENNAN MEDICAL CORPORATION | WATSONVILLE | CA | CARDIOVASCULAR DISEASE (CARDIOLOGY) | 2 | 21 | $8,820 | $420 | premium | 3.9% | (831) 768-0220 |
| 22 | MOWERY CLINIC LLC | SALINA | KS | OBSTETRICS/GYNECOLOGY | 22 | 20 | $5,000 | $250 | premium | 9.4% | — |
| 23 | CEDARS-SINAI MEDICAL CARE FOUNDATION | LOS ANGELES | CA | PHYSICIAN ASSISTANT | 1699 | 20 | $11,720 | $586 | premium | 3.8% | (310) 423-0674 |
| 24 | BEVERLY RADIOLOGY MEDICAL GROUP III | GARDEN GROVE | CA | DIAGNOSTIC RADIOLOGY | 328 | 19 | $5,890 | $310 | premium | 3.6% | — |
| 25 | LENOX HILL RADIOLOGY AND MEDICAL IMAGING ASSOCIATES PC | NEW YORK | NY | DIAGNOSTIC RADIOLOGY | 244 | 18 | $5,580 | $310 | premium | 6.3% | (212) 772-3111 |
| 26 | WATSON CLINIC LLP | LAKELAND | FL | NURSE PRACTITIONER | 363 | 18 | $5,850 | $325 | premium | 2.8% | (863) 680-7780 |
| 27 | MEDICAL TECHNOLOGY TRANSFER CORPORATION | MELBOURNE | FL | DIAGNOSTIC RADIOLOGY | 7 | 15 | $2,175 | $145 | premium | 2.4% | (321) 726-3855 |
| 28 | BLACKWELL PHYSICIANS, LLC | ROCKVILLE | MD | DIAGNOSTIC RADIOLOGY | 67 | 14 | $1,281 | $92 | premium | 3.7% | (240) 826-6074 |
| 29 | IMPRESSION IMAGING LLC | TAMARAC | FL | DIAGNOSTIC RADIOLOGY | 20 | 14 | $3,500 | $250 | premium | 2.2% | (954) 580-2780 |
| 30 | DIAGNOSTIC IMAGING CENTERS PA | KANSAS CITY | MO | DIAGNOSTIC RADIOLOGY | 28 | 13 | $1,990 | $153 | premium | 48.1% | (816) 444-9989 |
| 31 | ADVOCATE HEALTH AND HOSPITALS CORPORATION | BUFFALO GROVE | IL | NURSE PRACTITIONER | 3045 | 12 | $17,136 | $1,428 | premium | 11.9% | (847) 459-1160 |
| 32 | GRAND TRAVERSE RADIOLOGISTS PC | TRAVERSE CITY | FL | DIAGNOSTIC RADIOLOGY | 32 | 12 | $7,106 | $592 | premium | 1.9% | (231) 935-5000 |
| 33 | COTTON-O'NEIL CLINIC REVOCABLE TRUST | TOPEKA | KS | NURSE PRACTITIONER | 649 | 12 | $9,450 | $788 | premium | 5.6% | (785) 354-9591 |
| 34 | ATRIUS HEALTH INC | BOSTON | MA | NURSE PRACTITIONER | 1196 | 12 | $9,432 | $786 | premium | 14.0% | (617) 421-1000 |
| 35 | RADIOLOGY IMAGING ASSOCIATES | PORT ST LUCIE | FL | DIAGNOSTIC RADIOLOGY | 11 | 12 | $3,720 | $310 | premium | 1.9% | (772) 905-3589 |
| 36 | GRAVES GILBERT CLINIC PLLC | BOWLING GREEN | KY | NURSE PRACTITIONER | 221 | 12 | $3,540 | $295 | premium | 27.9% | (270) 781-4043 |
| 37 | WINDSONG RADIOLOGY GROUP P C | WILLIAMSVILLE | NY | DIAGNOSTIC RADIOLOGY | 23 | 12 | $3,600 | $300 | premium | 4.2% | (716) 631-2500 |
| 38 | TOLEDO CLINIC INCORPORATED | TOLEDO | OH | NURSE PRACTITIONER | 217 | 11 | $3,885 | $353 | premium | 100.0% | (419) 874-3246 |
| 39 | WESTERN NEW YORK MRI LLP | BUFFALO | NY | DIAGNOSTIC RADIOLOGY | 11 | 11 | $363 | $33 | premium | 3.8% | (716) 855-2866 |
| 40 | DELAWARE RADIOLOGY ASSOCIATES PA | NEWARK | DE | DIAGNOSTIC RADIOLOGY | 56 | 11 | $3,410 | $310 | premium | 100.0% | (302) 737-5990 |
*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 →