NEVVI Medicare utilization intelligence
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Market snapshot

Nationwide CY2024

Medicare Part B FFS · CY2024 · as published by CMS
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes CPT · E&M
Classification E&M › Hospital Inpatient Services › Hospital E&M - Subsequent (CMS RBCS)
First observed 2013 — start of our 12-year window; the code predates it
National scale 22.31M services ▲ 3.0% YoY · 9.32M beneficiaries (CY2024, Medicare FFS)
Medicare paid $2.0B · $91.49 avg / service, national
CMS descriptor · RBCS classification · Medicare Part B physician/supplier claims, 12-year window
Billing groups
8,210
Named-group FFS services
14,841,936
FFS of Medicare
49%
Services YoY
+3.0%
FFS enrollment -2.2%
Estimated all-Medicare volume FFS + estimated MA estimate
~30,084,045 services

14,841,936 observed fee-for-service (49%) · ~15,242,109 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; 5 states without payer-mix data excluded. How we scale

Top states — 99233 (CY2024)
CA 3,224,494 FL 2,162,835 TX 1,951,623 NY 1,322,177 IL 1,198,684

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

Named-group submitted charges
$4.8B
Named-group allowed amount
$1.7B
Named-group Medicare payments
$1.4B
Avg charge / svc
$326
Avg allowed / svc
$116
Avg payment / svc
$92
Average charge per group
$75 8,210 groups · avg submitted charge / service $2,700
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Data year: CY2024 CY2023 CY2022  CY2021  CY2020 
# Physician group City St Specialty Providers 99233 svcs Submitted charges Avg charge Medicare $ Share* Phone
1 NORTH SHORE-LIJ MEDICAL PC MANHASSET NY PHYSICIAN ASSISTANT 6294 134,532 $63,728,296 $474 10.2% —
2 ADVOCATE HEALTH AND HOSPITALS CORPORATION BUFFALO GROVE IL NURSE PRACTITIONER 3045 116,492 $30,404,797 $261 9.7% (847) 459-1160
3 THE REGENTS OF THE UNIVERSITY OF CALIFORNIA LOS ANGELES CA INTERNAL MEDICINE 1424 92,524 $61,362,479 $663 2.9% (310) 825-7922
4 SUTTER BAY MEDICAL FOUNDATION PALO ALTO CA INTERNAL MEDICINE 3716 92,306 $33,336,139 $361 2.9% (415) 600-1020
5 ENDEAVOR HEALTH MEDICAL GROUP EVANSTON IL NURSE PRACTITIONER 3380 89,473 $21,061,544 $235 7.5% —
6 SUTTER VALLEY MEDICAL FOUNDATION SACRAMENTO CA DIAGNOSTIC RADIOLOGY 2420 73,307 $25,391,237 $346 2.3% (916) 681-8852
7 CLEVELAND CLINIC CLEVELAND OH PHYSICIAN ASSISTANT 6828 72,562 $60,667,900 $836 10.0% —
8 PRACTICE ASSOCIATES MEDICAL GROUP MORRISTOWN NJ NURSE PRACTITIONER 1404 64,034 $21,867,613 $342 6.4% (973) 971-5596
9 PLATINUM HOSPITALISTS LLP LAS VEGAS NV INTERNAL MEDICINE 192 63,828 $20,410,303 $320 17.3% (702) 407-7700
10 MEDSTAR MEDICAL GROUP II LLC WASHINGTON MD PHYSICIAN ASSISTANT 3707 61,130 $18,122,531 $296 11.9% (202) 429-2401
11 ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI NEW YORK NY PHYSICIAN ASSISTANT 2818 60,487 $24,720,798 $409 4.6% (212) 241-4812
12 CAROLINAS PHYSICIANS NETWORK INC CHARLOTTE NC PHYSICIAN ASSISTANT 2360 58,863 $20,752,449 $353 11.5% (704) 667-1000
13 NEW YORK UNIVERSITY NEW YORK NY DIAGNOSTIC RADIOLOGY 5704 56,044 $43,908,547 $783 4.2% (212) 263-9700
14 PHYSICIANS REFERRAL SERVICE HOUSTON TX NURSE PRACTITIONER 2696 55,835 $16,560,116 $297 2.9% (713) 592-5433
15 STANFORD HEALTH CARE STANFORD CA DIAGNOSTIC RADIOLOGY 3039 55,488 $21,572,583 $389 1.7% (650) 723-4000
16 MAIN LINE HEALTHCARE BRYN MAWR PA NURSE PRACTITIONER 1157 54,903 $12,207,958 $222 6.2% —
17 ORLANDO HEALTH MEDICAL GROUP INC ORLANDO FL PHYSICIAN ASSISTANT 2145 54,712 $19,215,453 $351 2.5% (407) 896-1100
18 HEALTHTEXAS PROVIDER NETWORK DALLAS TX PHYSICIAN ASSISTANT 2482 53,958 $14,518,059 $269 2.8% —
19 WELLSTAR MEDICAL GROUP LLC MARIETTA GA NURSE PRACTITIONER 3060 53,205 $14,554,486 $274 8.9% (770) 422-2004
20 NORTHWESTERN MEDICAL FACULTY FOUNDATION CHICAGO IL NURSE PRACTITIONER 4339 51,115 $15,633,503 $306 4.3% —
21 CEDARS-SINAI MEDICAL CARE FOUNDATION LOS ANGELES CA PHYSICIAN ASSISTANT 1699 50,715 $20,802,239 $410 1.6% (310) 423-0674
22 METRO INFECTIOUS DISEASE CONSULTANTS LLC BURR RIDGE IL INFECTIOUS DISEASE 396 49,279 $9,929,122 $201 4.1% (888) 220-6432
23 ALLINA HEALTH SYSTEM MINNEAPOLIS MN PHYSICIAN ASSISTANT 3855 46,898 $25,143,647 $536 19.5% (612) 863-4000
24 MEMORIAL HERMANN MEDICAL GROUP HOUSTON TX HOSPITALIST 747 46,628 $11,668,883 $250 2.4% (713) 242-2222
25 NOVANT HEALTH MEDICAL GROUP, LLC WINSTON SALEM NC PHYSICIAN ASSISTANT 2389 46,461 $13,165,090 $283 9.1% (704) 384-8200
26 CENTRAL DUPAGE PHYSICIAN GROUP WHEATON IL PHYSICIAN ASSISTANT 1097 45,480 $9,469,564 $208 3.8% (630) 933-4800
27 MASSACHUSETTS GENERAL PHYSICIANS ORGANIZATION INC BOSTON MA DIAGNOSTIC RADIOLOGY 3532 44,873 $22,200,762 $495 7.8% (617) 724-0287
28 THE EMORY CLINIC INC ATLANTA GA NURSE PRACTITIONER 3484 43,393 $19,092,591 $440 7.2% (404) 778-7525
29 DIGNITY HEALTH MEDICAL FOUNDATION FOLSOM CA DIAGNOSTIC RADIOLOGY 1197 43,054 $18,703,277 $434 1.3% (916) 983-7476
30 BANNER HOSPITAL BASED PHYSICIANS ARIZONA LLC MESA AZ INTERNAL MEDICINE 644 42,969 $11,497,754 $268 6.9% (480) 412-3000
31 ID CARE LLC HILLSBOROUGH NJ INFECTIOUS DISEASE 121 42,615 $10,572,197 $248 4.2% (908) 281-0221
32 RWJBH EMERGENCY MEDICINE ASSOCIATES, LLC ELIZABETH NJ EMERGENCY MEDICINE 780 41,979 $30,616,561 $729 4.2% (908) 994-5422
33 AKDHC LLC PHOENIX AZ NEPHROLOGY 129 41,045 $8,294,886 $202 6.6% (602) 200-8288
34 HACKENSACK MERIDIAN HEALTH MEDICAL GROUP - SPECIALTY CARE PC NEPTUNE NJ NURSE PRACTITIONER 1878 40,796 $15,044,491 $369 4.1% (732) 362-3663
35 AURORA MEDICAL GROUP, INC. MILWAUKEE WI DIAGNOSTIC RADIOLOGY 3696 40,664 $21,245,792 $522 19.2% (414) 421-8400
36 MILLENNIUM PHYSICIAN GROUP LLC PORT CHARLOTTE FL PHYSICIAN ASSISTANT 953 40,466 $9,959,474 $246 1.9% (941) 255-3535
37 INOVA HEALTH CARE SERVICES FALLS CHURCH VA NURSE PRACTITIONER 1818 39,914 $11,338,634 $284 7.8% —
38 KANSAS UNIVERSITY PHYSICIANS INC KANSAS CITY KS NURSE PRACTITIONER 1815 39,518 $11,499,963 $291 18.0% (913) 588-1227
39 SENTARA MEDICAL GROUP NORFOLK VA PHYSICIAN ASSISTANT 1404 39,163 $8,951,675 $229 7.7% —
40 HOSPITAL MEDICINE SERVICES OF FL, LLC LAKE CITY FL INTERNAL MEDICINE 523 38,807 $21,595,814 $556 1.8% (850) 719-9000
41 DUPAGE MEDICAL GROUP LTD GLEN ELLYN IL PHYSICIAN ASSISTANT 1323 38,549 $8,463,511 $220 3.2% (630) 469-9200
42 PROVIDENCE MEDICAL FOUNDATION FULLERTON CA PHYSICIAN ASSISTANT 1455 37,334 $12,789,011 $343 1.2% (714) 871-3006
43 COMMUNITY MEDICAL ASSOCIATES INC LOUISVILLE KY NURSE PRACTITIONER 1377 37,244 $12,383,764 $333 12.5% (502) 937-2209
44 BEST PRACTICES INPATIENT CARE, LTD. BARRINGTON IL INTERNAL MEDICINE 81 36,147 $8,010,012 $222 3.0% (847) 381-9600
45 UNIVERSITY OF TEXAS SOUTHWESTERN MEDICAL CENTER AT DALLAS DALLAS TX PHYSICIAN ASSISTANT 3200 35,511 $12,595,599 $355 1.8% (214) 633-5555
46 UMASS MEMORIAL MEDICAL GROUP INC WORCESTER MA PHYSICIAN ASSISTANT 2483 34,972 $12,256,883 $350 6.1% (508) 334-1000
47 MEDSTAR MEDICAL GROUP II LLC WASHINGTON DC PHYSICIAN ASSISTANT 3707 34,880 $10,246,342 $294 30.3% (202) 429-2401
48 OSU INTERNAL MEDICINE LLC COLUMBUS OH NURSE PRACTITIONER 1155 33,442 $10,765,837 $322 4.6% (614) 293-8000
49 NORTH SHORE HEMATOLOGY ONCOLOGY ASSOCIATES PC SMITHTOWN NY NURSE PRACTITIONER 462 33,417 $12,460,243 $373 2.5% (631) 751-3000
50 VIRTUA MEDICAL GROUP, PA VOORHEES NJ PHYSICIAN ASSISTANT 1662 33,011 $8,444,196 $256 3.3% (856) 247-7260
51 FLORIDA CLINICAL PRACTICE ASSOCIATION INC GAINESVILLE FL NURSE PRACTITIONER 1912 32,812 $14,409,765 $439 1.5% (352) 265-8990
52 WARREN CLINIC INC TULSA OK NURSE PRACTITIONER 772 32,157 $7,927,304 $247 11.7% (918) 502-4720
53 GALEN INPATIENT PHYSICIANS PC PENSACOLA CA HOSPITALIST 1012 31,975 $18,019,636 $564 1.0% (850) 416-7000
54 PIEDMONT HOSPITALIST PHYSICIANS LLC ATLANTA GA INTERNAL MEDICINE 489 30,661 $10,909,223 $356 5.1% (404) 605-5000
55 FLORIDA KIDNEY PHYSICIANS LLC TAMPA FL NEPHROLOGY 165 30,601 $7,127,363 $233 1.4% (813) 910-8708
56 HOSPITALIST MEDICINE PHYSICIANS OF TEXAS PLLC WICHITA TX INTERNAL MEDICINE 714 30,453 $21,273,627 $699 1.6% (316) 291-4396
57 QUESTCARE HOSPITALISTS PLLC PLANO TX INTERNAL MEDICINE 281 29,940 $15,725,829 $525 1.5% (954) 939-5000
58 TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK NEW YORK NY NURSE PRACTITIONER 2273 29,575 $14,262,268 $482 2.2% (212) 305-8559
59 REGENTS OF THE UNIVERSITY OF CALIFORNIA SAN DIEGO CA DIAGNOSTIC RADIOLOGY 2057 29,411 $11,429,982 $389 0.9% (800) 926-8273
60 PROHEALTH PARTNERS, A MEDICAL GROUP LONG BEACH CA INTERNAL MEDICINE 228 29,391 $9,151,492 $311 0.9% (562) 495-4952
61 WELLSPAN MEDICAL GROUP YORK PA PHYSICIAN ASSISTANT 2312 29,321 $6,029,907 $206 3.3% —
62 BAYSTATE MEDICAL PRACTICES INC SPRINGFIELD MA PHYSICIAN ASSISTANT 1326 29,209 $7,428,280 $254 5.1% —
63 FRANCISCAN PHYSICIAN NETWORK INDIANAPOLIS IN PHYSICIAN ASSISTANT 1151 28,851 $6,365,197 $221 7.0% —
64 MEDICAL FOUNDATION OF CENTRAL MISSISSIPPI INC JACKSON MS NURSE PRACTITIONER 266 28,357 $3,933,239 $139 12.3% (601) 292-4261
65 LEE HEALTH SYSTEM INC FORT MYERS FL NURSE PRACTITIONER 1370 28,325 $10,807,795 $382 1.3% (239) 343-9888
66 LEHIGH VALLEY PHYSICIAN GROUP ALLENTOWN PA PHYSICIAN ASSISTANT 2389 28,252 $7,793,619 $276 3.2% —
67 WEILL MEDICAL COLLEGE OF CORNELL NEW YORK NY INTERNAL MEDICINE 2053 28,125 $10,199,305 $363 2.1% (212) 746-5454
68 STONY BROOK INTERNISTS UNIVERSITY FACULTY PRACTICE CORPORATION STONY BROOK NY HOSPITALIST 414 27,919 $9,219,723 $330 2.1% (631) 444-1560
69 MAYO CLINIC ARIZONA PHOENIX AZ PHYSICIAN ASSISTANT 1635 27,379 $10,621,624 $388 4.4% (800) 603-0558
70 SMH PHYSICIAN SERVICES INC SARASOTA FL PHYSICIAN ASSISTANT 766 27,143 $5,735,244 $211 1.3% —
71 AFFILIATED HOSPITALISTS PLC PHOENIX AZ INTERNAL MEDICINE 84 26,502 $4,011,055 $151 4.3% (602) 445-0751
72 NEPHROLOGY AND ENDOCRINE ASSOCIATES INC LAS VEGAS NV NEPHROLOGY 63 26,429 $8,344,807 $316 7.2% (702) 877-1887
73 HARVARD MEDICAL FACULTY PHYS AT BETH ISRAEL DEACONESS MED CTR INC BOSTON MA INTERNAL MEDICINE 1689 25,916 $8,923,865 $344 4.5% (781) 983-9088
74 MONTEFIORE MEDICAL CENTER BRONX NY PHYSICAL THERAPIST IN PRIVATE PRACTICE 2796 25,736 $16,875,247 $656 1.9% (866) 633-8255
75 BAYVIEW PHYSICIAN SERVICES PC CHESAPEAKE VA PHYSICIAN ASSISTANT 322 25,211 $4,714,844 $187 4.9% (757) 410-4488
76 SCOTT AND WHITE CLINIC TEMPLE TX PHYSICIAN ASSISTANT 2435 24,793 $5,305,375 $214 1.3% (254) 724-2663
77 JOHNS HOPKINS COMMUNITY PHYSICIANS, INC BALTIMORE MD INTERNAL MEDICINE 760 24,713 $6,301,149 $255 4.8% (410) 522-9800
78 NORTHEAST MEDICAL GROUP INC NEW HAVEN CT PHYSICIAN ASSISTANT 1380 24,317 $6,696,349 $275 13.9% —
79 CHS PHYSICIAN PARTNERS PC ROSLYN NY PHYSICIAN ASSISTANT 734 23,990 $9,575,488 $399 1.8% —
80 PACIFIC INPATIENT MEDICAL GROUP SAN FRANCISCO CA INTERNAL MEDICINE 129 23,679 $11,993,873 $507 0.7% (415) 485-8824
81 MAYO CLINIC ROCHESTER MN NURSE PRACTITIONER 4896 23,282 $8,715,927 $374 9.7% (507) 284-2511
82 BAYCARE MEDICAL GROUP, INC. CLEARWATER FL CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) 1526 23,143 $6,665,972 $288 1.1% (727) 725-5060
83 WASHINGTON UNIVERSITY SAINT LOUIS MO NURSE PRACTITIONER 3070 23,003 $8,216,555 $357 6.6% (314) 747-3000
84 ARIZONA INPATIENT MEDICINE ASSOCIATES LLC TUCSON AZ INTERNAL MEDICINE 69 22,999 $3,448,701 $150 3.7% (520) 318-3434
85 GEISINGER CLINIC DANVILLE PA PHYSICIAN ASSISTANT 3426 22,876 $5,785,344 $253 2.6% (570) 271-6144
86 THE ASSOCIATION OF UNIVERSITY PHYSICIANS SEATTLE WA PHYSICIAN ASSISTANT 3612 22,566 $8,300,210 $368 8.1% (206) 364-0500
87 COTTON-O'NEIL CLINIC REVOCABLE TRUST TOPEKA KS NURSE PRACTITIONER 649 22,502 $4,246,176 $189 10.3% (785) 354-9591
88 OHIOHEALTH CORPORATION COLUMBUS OH PHYSICIAN ASSISTANT 2282 22,460 $4,750,810 $212 3.1% —
89 HEALTH FIRST MEDICAL GROUP, LLC MELBOURNE FL NURSE PRACTITIONER 669 22,311 $5,622,895 $252 1.0% (321) 434-8878
90 FLORIDA HOSPITAL MEDICAL GROUP INC MAITLAND FL PHYSICIAN ASSISTANT 1634 21,850 $8,017,892 $367 1.0% (407) 200-2700
91 KENNEDY MEDICAL GROUP PRACTICE, P.C. CHERRY HILL NJ PHYSICIAN ASSISTANT 403 21,595 $4,103,050 $190 2.1% (844) 542-2273
92 CHEST AND CRITICAL CARE CONSULTANTS A MEDICAL GROUP TUSTIN CA INTERNAL MEDICINE 69 21,415 $7,851,502 $367 0.7% (714) 573-8200
93 SOUTH SOUND INPATIENT PHYSICIANS PLLC PUYALLUP WA INTERNAL MEDICINE 434 21,309 $14,949,028 $702 7.7% (253) 697-4000
94 PRISMA HEALTH UNIVERSITY MEDICAL GROUP GREENVILLE SC NURSE PRACTITIONER 2447 21,099 $4,762,964 $226 8.7% —
95 TRIHEALTH H LLC CINCINNATI OH OBSTETRICS/GYNECOLOGY 853 20,695 $4,909,304 $237 2.8% (513) 246-7000
96 SCRIPPS HEALTH LA JOLLA CA PHYSICIAN ASSISTANT 1431 20,547 $5,623,271 $274 0.6% (858) 455-9100
97 WAKEMED SPECIALISTS GROUP LLC RALEIGH NC PHYSICIAN ASSISTANT 860 20,526 $4,942,987 $241 4.0% (919) 350-7270
98 PLOVER INPATIENT SERVICES LLC MONTCLAIR NJ INTERNAL MEDICINE 155 20,448 $8,849,624 $433 2.0% (973) 429-6000
99 OSF MULTI-SPECIALTY GROUP PEORIA IL NURSE PRACTITIONER 2091 20,434 $6,722,946 $329 1.7% (309) 683-5050
100 GROUP HEALTH PLAN INC SAINT PAUL MN PHYSICIAN ASSISTANT 1627 20,396 $8,672,004 $425 8.5% (651) 221-3456

Showing the top 100 of 8,210 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 →