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Market snapshot

84166 nationwide CY2024

Medicare Part B FFS · CY2024 · as published by CMS

84166 — Protein measurement, body fluid

Billing groups
203
Named-group FFS services
61,032
FFS of Medicare
49%
Services YoY
-1.5%
FFS enrollment -2.2%
Estimated all-Medicare volume FFS + estimated MA estimate
~124,417 services

61,032 observed fee-for-service (49%) · ~63,385 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 — 84166 (CY2024)
NJ 22,174 TX 20,046 CA 19,549 FL 17,562 NC 13,456

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

Named-group submitted charges
$4.6M
Named-group allowed amount
$1.1M
Named-group Medicare payments
$862K
Avg charge / svc
$75
Avg allowed / svc
$17
Avg payment / svc
$14
Average charge per group
$12 203 groups · avg submitted charge / service $287
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Data year: CY2024 CY2023 CY2022 🔒 CY2021 🔒 CY2020 🔒
#Physician group City St Specialty Providers 84166 svcs Submitted charges Avg charge Medicare $ Share* Phone
1 PHYSICIANS REFERRAL SERVICE HOUSTON TX NURSE PRACTITIONER 2696 3,121 $274,992 $88 15.6% (713) 592-5433
2 CEDARS-SINAI MEDICAL CARE FOUNDATION LOS ANGELES MA PHYSICIAN ASSISTANT 1699 2,401 $259,308 $108 27.5% (310) 423-0674
3 SCRIPPS HEALTH LA JOLLA CA PHYSICIAN ASSISTANT 1431 2,159 $146,531 $68 11.0% (858) 455-9100
4 CLEVELAND CLINIC CLEVELAND OH PHYSICIAN ASSISTANT 6828 1,679 $78,796 $47 19.9% —
5 NORTHWESTERN MEDICAL FACULTY FOUNDATION CHICAGO IL NURSE PRACTITIONER 4339 1,558 $174,496 $112 20.9% —
6 YALE UNIVERSITY NEW HAVEN CT PHYSICIAN ASSISTANT 2649 1,527 $122,160 $80 84.2% (203) 688-4242
7 H LEE MOFFITT CANCER CTR AND RES INST LIFE TIME CANCER SCRN CTR INC TAMPA FL PHYSICIAN ASSISTANT 1103 1,476 $91,488 $62 8.4% (813) 745-4673
8 VANDERBILT UNIVERSITY MEDICAL CENTER NASHVILLE TN NURSE PRACTITIONER 3394 1,341 $172,989 $129 28.7% (615) 322-5000
9 UNIVERSITY OF ARKANSAS FOR MEDICAL SCIENCES LITTLE ROCK AR NURSE PRACTITIONER 1241 1,039 $40,521 $39 90.0% (501) 686-8000
10 UNIVERSITY OF ALABAMA HEALTH SERVICES FOUNDATION, PC BIRMINGHAM AL NURSE PRACTITIONER 2788 1,039 $85,069 $82 22.8% (205) 934-3460
11 REGENTS OF THE UNIVERSITY OF MICHIGAN ANN ARBOR MI INTERNAL MEDICINE 3330 1,030 $124,630 $121 20.2% (734) 763-5459
12 TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK NEW YORK NY NURSE PRACTITIONER 2273 1,022 $102,200 $100 13.5% (212) 305-8559
13 BEAUMONT MEDICAL GROUP HOSPITAL BASED SERVICES TROY MI DIAGNOSTIC RADIOLOGY 583 985 $86,983 $88 19.3% (248) 964-1187
14 UNIVERSITY PHYSICIANS INCORPORATED AURORA CO PHYSICIAN ASSISTANT 3122 879 $80,898 $92 55.6% (720) 777-1234
15 UNIVERSITY OF CHICAGO CHICAGO IL NURSE PRACTITIONER 1662 808 $109,836 $136 10.8% (888) 824-0200
16 MORRISTOWN PATHOLOGY ASSOCIATES PA MORRISTOWN NJ PATHOLOGY 25 804 $44,220 $55 3.6% (973) 971-5600
17 GREAT LAKES PATHOLOGISTS SC WEST ALLIS WI PATHOLOGY 55 789 $100,981 $128 23.6% (414) 328-7950
18 MIDWEST DIAGNOSTIC PATHOLOGY, S.C. PARK RIDGE IL PATHOLOGY 45 736 $31,648 $43 9.9% (847) 723-2210
19 MASS GENERAL BRIGHAM COMMUNITY PHYSICIANS INC MEDFORD MA DIAGNOSTIC RADIOLOGY 424 724 $41,992 $58 8.3% (781) 395-4909
20 UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL CHAPEL HILL NC NURSE PRACTITIONER 2120 695 $36,140 $52 5.2% (984) 215-5556
21 PENINSULA PATHOLOGISTS MEDICAL GROUP INC MOUNTAIN VIEW CA PATHOLOGY 16 624 $32,001 $51 3.2% (650) 616-2951
22 SCOTT AND WHITE CLINIC TEMPLE TX PHYSICIAN ASSISTANT 2435 619 $121,943 $197 3.1% (254) 724-2663
23 UNIVERSITY OF TEXAS SOUTHWESTERN MEDICAL CENTER AT DALLAS DALLAS TX PHYSICIAN ASSISTANT 3200 610 $50,630 $83 3.0% (214) 633-5555
24 UNIVERSITY OF VIRGINIA PHYSICIANS GROUP CHARLOTTESVILLE VA NURSE PRACTITIONER 1704 606 $28,482 $47 23.9% (434) 924-5959
25 BRIGHAM AND WOMENS PHYSICIANS ORGANIZATION INC BOSTON MA PHYSICIAN ASSISTANT 2942 598 $44,796 $75 6.9% (617) 732-5500
26 WINFIELD PATHOLOGY CONSULTANTS, S.C. WINFIELD IL PATHOLOGY 11 560 $14,840 $26 7.5% (630) 933-2048
27 THE EMORY CLINIC INC ATLANTA GA NURSE PRACTITIONER 3484 560 $33,624 $60 9.2% (404) 778-7525
28 UNIVERSITY OF PENN - MEDICAL GROUP PHILADELPHIA PA PHYSICIAN ASSISTANT 3505 551 $32,509 $59 9.1% (215) 662-2777
29 CAROLINAS PATHOLOGY GROUP PA CHARLOTTE NC PATHOLOGY 50 539 $37,730 $70 4.0% (704) 304-5988
30 METHODIST PATHOLOGY ASSOCIATES PLLC HOUSTON TX PATHOLOGY 80 522 $11,055 $21 2.6% (713) 394-6450
31 PRATT PATHOLOGY ASSOCIATES INC BOSTON MA PATHOLOGY 24 511 $43,931 $86 5.9% —
32 THE ASSOCIATION OF UNIVERSITY PHYSICIANS SEATTLE WA PHYSICIAN ASSISTANT 3612 506 $27,139 $54 17.9% (206) 364-0500
33 HAWAII PATHOLOGISTS LABORATORY HONOLULU HI PATHOLOGY 16 490 $19,110 $39 46.0% (808) 691-4271
34 CORPATH LTD COLUMBUS OH PATHOLOGY 26 489 $28,851 $59 5.8% (614) 566-4945
35 SPECTRUM HEALTHCARE PARTNERS PA PORTLAND ME DIAGNOSTIC RADIOLOGY 281 447 $23,691 $53 56.9% (207) 828-2160
36 UNIVERSITY HOSPITALS MEDICAL GROUP INC CLEVELAND MI NURSE PRACTITIONER 2232 443 $21,707 $49 8.7% —
37 CITY OF HOPE MEDICAL FOUNDATION DUARTE CA NURSE PRACTITIONER 942 439 $25,199 $57 2.2% (626) 256-4673
38 DRS CLACK SPENCER WHITE AND MCCORMACK PA SARASOTA FL PATHOLOGY 13 410 $11,726 $29 2.3% (941) 362-8900
39 PATHOLOGY SCIENCES MEDICAL GROUP PC NORFOLK VA PATHOLOGY 26 400 $24,800 $62 15.8% (757) 668-3221
40 PATHOLOGY LABORATORY ASSOCIATES, INC. TULSA OK PATHOLOGY 25 375 $14,528 $39 27.8% (918) 388-5720
41 MEDPEDS ASSOCIATES OF SARASOTA SARASOTA FL INTERNAL MEDICINE 2 368 $8,377 $23 2.1% (941) 955-8800
42 MEMORIAL HEMATOLOGY LYMPHOMA GROUP NEW YORK NY NURSE PRACTITIONER 226 367 $34,865 $95 4.9% (212) 639-2000
43 WEILL MEDICAL COLLEGE OF CORNELL NEW YORK NY INTERNAL MEDICINE 2053 357 $21,063 $59 4.7% (212) 746-5454
44 SOUTHERN OHIO PATHOLOGY CONSULTANTS, INC. CINCINNATI OH PATHOLOGY 18 357 $16,422 $46 4.2% (513) 865-1111
45 LAHEY CLINIC INC BURLINGTON MA NURSE PRACTITIONER 1400 357 $22,071 $62 4.1% —
46 ALBANY MEDICAL COLLEGE ALBANY NY PHYSICIAN ASSISTANT 1070 356 $19,580 $55 4.7% (518) 262-3277
47 UTAH PATHOLOGY SERVICES INC MURRAY UT PATHOLOGY 28 354 $11,328 $32 36.6% (801) 266-0055
48 MCV ASSOCIATED PHYSICIANS RICHMOND VA NURSE PRACTITIONER 1791 349 $46,766 $134 13.7% (804) 828-9000
49 PATHOLOGY CONSULTANTS INC HAMMOND IN PATHOLOGY 21 344 $22,532 $66 31.2% (219) 989-3700
50 CHRISTIANA CARE HEALTH SERVICES INC NEWARK DE PHYSICIAN ASSISTANT 1537 343 $29,323 $85 76.9% —
51 ENDEAVOR HEALTH MEDICAL GROUP EVANSTON IL NURSE PRACTITIONER 3380 339 $19,662 $58 4.5% —
52 UNMC PHYSICIANS OMAHA NE PHYSICIAN ASSISTANT 1514 327 $14,775 $45 30.0% (402) 559-4000
53 UNIVERSITY PATHOLOGY DIAGNOSTICS SC CHICAGO IL PATHOLOGY 19 320 $16,180 $51 4.3% —
54 HOSPITAL PATHOLOGY ASSOCIATES, PA MINNEAPOLIS MN PATHOLOGY 45 319 $30,624 $96 8.0% (612) 767-8370
55 MAIN LINE PATHOLOGY ASSOCIATES, PC BRYN MAWR PA PATHOLOGY 10 317 $21,556 $68 5.2% (484) 337-4570
56 WINFIELD PATHOLOGY CONSULTANTS, S.C. WINFIELD IA PATHOLOGY 11 306 $8,109 $26 29.3% (630) 933-2048
57 WELLSTAR MEDICAL GROUP LLC MARIETTA IA NURSE PRACTITIONER 3060 306 $19,972 $65 29.3% (770) 422-2004
58 MONTEFIORE MEDICAL CENTER BRONX NY PHYSICAL THERAPIST IN PRIVATE PRACTICE 2796 305 $35,075 $115 4.0% (866) 633-8255
59 UNIVERSITY PATHOLOGISTS LABORATORIES, LLP SYRACUSE NY PATHOLOGY 25 300 $20,960 $70 4.0% (315) 464-4750
60 UNIVERSITY PHYSICIAN GROUP DETROIT MI NURSE PRACTITIONER 405 289 $9,922 $34 5.7% (800) 527-6266
61 SOUTHEASTERN PATHOLOGY ASSOCIATES PC BRUNSWICK GA PATHOLOGY 46 280 $35,840 $128 4.6% 91226126691205
62 COMPREHENSIVE PATHOLOGY ASSOCIATES, P.A. MIAMI FL PATHOLOGY 20 272 $19,856 $73 1.5% (786) 596-6525
63 JEFFERSON UNIVERSITY PHYSICIANS PHILADELPHIA PA DIAGNOSTIC RADIOLOGY 1570 262 $14,410 $55 4.3% —
64 HARVARD MEDICAL FACULTY PHYS AT BETH ISRAEL DEACONESS MED CTR INC BOSTON MD INTERNAL MEDICINE 1689 256 $15,360 $60 6.9% (781) 983-9088
65 GREAT LAKES PATHOLOGISTS SC WEST ALLIS MI PATHOLOGY 55 252 $32,252 $128 4.9% (414) 328-7950
66 DUKE HEALTH INTEGRATED PRACTICE INC DURHAM NC PHYSICIAN ASSISTANT 3051 246 $11,070 $45 1.8% (919) 684-8111
67 PATHOLOGY CONSULTANTS LLC YOUNGSTOWN OH PATHOLOGY 9 244 $15,616 $64 2.9% (330) 480-3768
68 SUMMIT MEDICAL GROUP PA BERKELEY HEIGHTS NJ PHYSICIAN ASSISTANT 1183 244 $16,792 $69 1.1% (908) 273-4300
69 ALLIED HOSPITAL PATHOLOGISTS PC FORT WAYNE IN PATHOLOGY 11 234 $15,130 $65 21.2% (260) 266-1000
70 DUKE HEALTH INTEGRATED PRACTICE INC DURHAM PA PHYSICIAN ASSISTANT 3051 231 $10,395 $45 3.8% (919) 684-8111
71 VIVID PATHOLOGY PA PENSACOLA FL PATHOLOGY 12 229 $11,908 $52 1.3% (448) 227-5201
72 PATHOLOGY GROUP PC OKLAHOMA CITY OK PATHOLOGY 9 229 $11,683 $51 17.0% (405) 272-7065
73 UNIVERSITY MEDICAL ASSOCIATES OF THE MEDICAL UNIVERSITY OF SOUTH CAROL CHARLESTON SC PHYSICIAN ASSISTANT 1692 224 $17,817 $80 73.0% (843) 792-1414
74 MICHIGAN PATHOLOGY SPECIALISTS PC GRAND RAPIDS MI PATHOLOGY 32 224 $10,740 $48 4.4% (616) 267-2350
75 ONCOLOGY SPECIALTIES, P.C. HUNTSVILLE AL NURSE PRACTITIONER 93 219 $19,710 $90 4.8% (256) 705-4224
76 UNIVERSITY HOSPITALS MEDICAL GROUP INC CLEVELAND OH NURSE PRACTITIONER 2232 218 $10,682 $49 2.6% —
77 UNIVERSITY OF ARKANSAS FOR MEDICAL SCIENCES LITTLE ROCK KS NURSE PRACTITIONER 1241 214 $8,346 $39 7.6% (501) 686-8000
78 UNIVERSITY OF WISCONSIN MEDICAL FOUNDATION INC MADISON WI PHYSICIAN ASSISTANT 2523 212 $30,528 $144 6.3% (608) 287-2050
79 CEDARS-SINAI MEDICAL CARE FOUNDATION LOS ANGELES CA PHYSICIAN ASSISTANT 1699 211 $22,788 $108 1.1% (310) 423-0674
80 MEDSTAR MEDICAL GROUP II LLC WASHINGTON PA PHYSICIAN ASSISTANT 3707 208 $11,856 $57 3.4% (202) 429-2401
81 WASHINGTON UNIVERSITY SAINT LOUIS MO NURSE PRACTITIONER 3070 201 $15,075 $75 20.6% (314) 747-3000
82 UNIVERSITY OF KANSAS HOSPITAL AUTHORITY KANSAS CITY KS NURSE PRACTITIONER 243 198 $8,730 $44 7.0% (913) 588-7743
83 MEMORIAL HEMATOLOGY LYMPHOMA GROUP NEW YORK MA NURSE PRACTITIONER 226 198 $18,810 $95 2.3% (212) 639-2000
84 EAST POST ROAD MEDICAL SERVICES PC WHITE PLAINS NY PHYSICIAN ASSISTANT 406 196 $14,208 $72 2.6% (914) 681-0600
85 PINEHURST PATHOLOGY CENTER INC PINEHURST NC PATHOLOGY 6 192 $7,116 $37 1.4% (910) 715-1161
86 INTEGRATED REGIONAL LABORATORIES PATHOLOGY SERVICES, LLC ATLANTIS FL PATHOLOGY 133 191 $20,628 $108 1.1% (561) 548-3639
87 THE EMORY CLINIC INC ATLANTA MI NURSE PRACTITIONER 3484 190 $11,443 $60 3.7% (404) 778-7525
88 LOYOLA UNIVERSITY MEDICAL CENTER MAYWOOD IL NURSE PRACTITIONER 933 190 $15,390 $81 2.5% (708) 216-8372
89 UNIVERSITY PATHOLOGISTS, LLC FALL RIVER RI PATHOLOGY 19 189 $8,400 $44 31.0% (508) 679-7168
90 FAIRVIEW EXPRESS CARE MINNEAPOLIS MN PHYSICIAN ASSISTANT 2007 187 $5,522 $30 4.7% (612) 672-7422
91 SOUTHERN CALIFORNIA PERMANENTE MEDICAL GROUP LOS ANGELES CA INTERNAL MEDICINE 11157 181 $51,947 $287 0.9% (800) 954-8000
92 ASSOCIATED PATHOLOGISTS LTD SPRINGFIELD IL PATHOLOGY 10 179 $8,717 $49 2.4% 217544646448225
93 UNIVERSITY OF CINCINNATI PHYSICIANS COMPANY LLC CINCINNATI OH NURSE PRACTITIONER 1504 177 $7,247 $41 2.1% (513) 584-1000
94 EDWARD W SPARROW HOSPITAL ASSOCIATION LANSING MI NURSE PRACTITIONER 694 174 $5,934 $34 3.4% (517) 484-4033
95 UCLA PATHOLOGY AND LABORATORY MEDICINE GROUP LOS ANGELES CA PATHOLOGY 65 174 $49,938 $287 0.9% (310) 267-2625
96 SCRIPPS HEALTH LA JOLLA PA PHYSICIAN ASSISTANT 1431 173 $11,742 $68 2.9% (858) 455-9100
97 MICHIGAN PATHOLOGY SPECIALISTS PC GRAND RAPIDS NY PATHOLOGY 32 173 $8,298 $48 2.3% (616) 267-2350
98 ANALYTICAL PATHOLOGY SERVICES LTD SAINT LOUIS MO PATHOLOGY 10 172 $9,221 $54 17.6% (314) 653-5630
99 PATHOLOGY ASSOCIATES OF CENTRAL ILLINOIS LTD SPRINGFIELD IL PATHOLOGY 14 170 $7,344 $43 2.3% (217) 788-3000
100 VIRGINIA MASON MEDICAL CENTER SEATTLE WA PHYSICIAN ASSISTANT 879 165 $8,250 $50 5.8% (206) 223-6600

Showing the top 100 of 203 groups — the full ranking is part of the market analytics platform — built, not launched yet. Notify me at launch →

*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 →