Who bills the most Pathology examination of tissue using a microscope, intermediate complexity (88305) to Medicare in Illinois?
Medicare Part B FFS · CY2024 · as published by CMS131 physician groups billed Pathology examination of tissue using a microscope, intermediate complexity (88305) to Medicare fee-for-service in Illinois in 2024; the top five named groups hold 38% of that volume, and independent (non-hospital-affiliated) groups deliver 0%.
88305 — Pathology examination of tissue using a microscope, intermediate complexity · Source: CMS Medicare Physician & Other Practitioners PUF (Part B), CY2024 release. Medicare fee-for-service only.
Snapshot covers the whole Illinois market — the table below shows the top 100 groups (free tier).
Medicare fee-for-service covers 57% of Medicare in Illinois; Medicare Advantage penetration 30% → 43% since 2020.
| # | Physician group | City | St | Specialty | Providers | 88305 svcs | Share* | Phone |
|---|---|---|---|---|---|---|---|---|
| 1 | DERICK DERMATOLOGY PLLC | BARRINGTON | IL | PHYSICIAN ASSISTANT | 64 | 41,178 | 6.5% | (847) 381-8899 |
| 2 | NORTHWESTERN MEDICAL FACULTY FOUNDATION | CHICAGO | IL | NURSE PRACTITIONER | 4339 | 34,731 | 5.5% | — |
| 3 | MIDWEST DIAGNOSTIC PATHOLOGY, S.C. | PARK RIDGE | IL | PATHOLOGY | 45 | 33,455 | 5.3% | (847) 723-2210 |
| 4 | PINNACLE DERMATOLOGY SC | JOLIET | IL | PHYSICIAN ASSISTANT | 144 | 22,588 | 3.6% | (815) 744-8554 |
| 5 | ENDEAVOR HEALTH MEDICAL GROUP | EVANSTON | IL | NURSE PRACTITIONER | 3380 | 14,050 | 2.2% | — |
| 6 | ILLINOIS GASTROENTEROLOGY GROUP LLC | ELGIN | IL | GASTROENTEROLOGY | 114 | 13,052 | 2.1% | (847) 888-1300 |
| 7 | ARLINGTON RIDGE PATHOLOGY SC | ARLINGTON HEIGHTS | IL | PATHOLOGY | 8 | 11,208 | 1.8% | (847) 618-6150 |
| 8 | UNIVERSITY OF CHICAGO | CHICAGO | IL | NURSE PRACTITIONER | 1662 | 8,394 | 1.3% | (888) 824-0200 |
| 9 | GASTRO HEALTH, LLC | MIAMI | IL | GASTROENTEROLOGY | 256 | 8,214 | 1.3% | (305) 913-0666 |
| 10 | SODERSTROM DERMATOLOGY CENTER S C | PEORIA | IL | PHYSICIAN ASSISTANT | 34 | 8,062 | 1.3% | — |
| 11 | WINFIELD PATHOLOGY CONSULTANTS, S.C. | WINFIELD | IL | PATHOLOGY | 11 | 7,833 | 1.2% | (630) 933-2048 |
| 12 | LOYOLA UNIVERSITY MEDICAL CENTER | MAYWOOD | IL | NURSE PRACTITIONER | 933 | 7,640 | 1.2% | (708) 216-8372 |
| 13 | DU PAGE PATHOLOGY ASSOCIATES SC | HINSDALE | IL | PATHOLOGY | 10 | 6,265 | 1.0% | (630) 856-9000 |
| 14 | UNIVERSITY PATHOLOGY DIAGNOSTICS SC | CHICAGO | IL | PATHOLOGY | 19 | 6,091 | 1.0% | — |
| 15 | ASSOCIATED PATHOLOGISTS LTD | SPRINGFIELD | IL | PATHOLOGY | 10 | 5,975 | 0.9% | 217544646448225 |
| 16 | PALOS DIAGNOSTICS SC | PALOS HEIGHTS | IL | PATHOLOGY | 7 | 5,908 | 0.9% | (708) 923-5076 |
| 17 | ASSOCIATED PATHOLOGY CONSULTANTS-ELMHURST SC | ELMHURST | IL | PATHOLOGY | 8 | 5,845 | 0.9% | (630) 833-1400 |
| 18 | PATHOLOGY ASSOCIATES OF CENTRAL ILLINOIS LTD | SPRINGFIELD | IL | PATHOLOGY | 14 | 5,605 | 0.9% | (217) 788-3000 |
| 19 | SOUTHERN ILLINOIS GI SPECIALISTS LLC | CARBONDALE | IL | GASTROENTEROLOGY | 4 | 5,591 | 0.9% | (618) 549-8006 |
| 20 | SOUTHERN ILLINOIS DERMATOLOGY, PC | HERRIN | IL | PHYSICIAN ASSISTANT | 13 | 5,405 | 0.9% | (618) 942-3344 |
| 21 | PEORIA TAZEWELL PATHOLOGY GROUP, S.C. | PEORIA | IL | PATHOLOGY | 15 | 5,182 | 0.8% | (309) 672-4918 |
| 22 | SCOTT D GLAZER MD SC | BUFFALO GROVE | IL | DERMATOLOGY | 6 | 5,125 | 0.8% | (847) 459-6611 |
| 23 | DUPAGE MEDICAL GROUP LTD | GLEN ELLYN | IL | PHYSICIAN ASSISTANT | 1323 | 5,029 | 0.8% | (630) 469-9200 |
| 24 | ADVOCATE HEALTH AND HOSPITALS CORPORATION | BUFFALO GROVE | IL | NURSE PRACTITIONER | 3045 | 4,298 | 0.7% | (847) 459-1160 |
| 25 | CENTRAL ILLINOIS PATHOLOGY, SC | PEORIA | IL | PATHOLOGY | 13 | 4,244 | 0.7% | (309) 624-9011 |
| 26 | NORTHWEST INDIANA PATHOLOGY CONSULTANTS, P.C. | MUNSTER | IL | PATHOLOGY | 11 | 4,176 | 0.7% | (219) 836-1600 |
| 27 | ASSOCIATES IN DERMATOLOGY SC | BLOOMINGTON | IL | NURSE PRACTITIONER | 6 | 3,545 | 0.6% | 30966288139 |
| 28 | CHRISTIE CLINIC, PLLC | CHAMPAIGN | IL | INTERNAL MEDICINE | 220 | 3,540 | 0.6% | (217) 366-1200 |
| 29 | SOUTHERN ILLINOIS MEDICAL SERVICES NFP | CARBONDALE | IL | NURSE PRACTITIONER | 347 | 3,300 | 0.5% | (618) 457-3006 |
| 30 | DERMATOLOGY PARTNERS OF THE NORTH SHORE LLC | NORTHBROOK | IL | DERMATOLOGY | 13 | 3,188 | 0.5% | (847) 272-4433 |
| 31 | ELGIN LABORATORY PHYSICIANS LTD | DEKALB | IL | PATHOLOGY | 5 | 3,076 | 0.5% | (815) 756-1521 |
| 32 | COMPREHENSIVE PATHOLOGY SERVICES SC | NEW LENOX | IL | PATHOLOGY | 7 | 2,968 | 0.5% | (630) 581-6503 |
| 33 | DERMATOLOGY SPECIALISTS OF ILLINOIS, LTD | ALGONQUIN | IL | PHYSICIAN ASSISTANT | 10 | 2,764 | 0.4% | (847) 458-7546 |
| 34 | CEDAR VALLEY MEDICAL SPECIALISTS PC | WATERLOO | IL | NURSE PRACTITIONER | 83 | 2,646 | 0.4% | — |
| 35 | CENTER FOR DERMATOLOGY PLLC | SCOTTSDALE | IL | PHYSICIAN ASSISTANT | 67 | 2,586 | 0.4% | (480) 905-8485 |
| 36 | THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS | CHICAGO | IL | NURSE PRACTITIONER | 1170 | 2,466 | 0.4% | — |
| 37 | CHIPPS, CAFFREY AND DUBILIER, P.S.C | LEXINGTON | IL | PATHOLOGY | 19 | 2,349 | 0.4% | (859) 278-9513 |
| 38 | GASTROINTESTINAL CLINIC OF QUAD CITIES PC | MOLINE | IL | GASTROENTEROLOGY | 9 | 2,328 | 0.4% | (309) 277-9220 |
| 39 | BASKO DERMATOLOGY, LLC | NAPERVILLE | IL | PHYSICIAN ASSISTANT | 9 | 2,291 | 0.4% | (630) 596-8045 |
| 40 | ASSOCIATE PATHOLOGISTS OF JOLIET PLLC | JOLIET | IL | PATHOLOGY | 4 | 2,259 | 0.4% | (815) 725-7222 |
| 41 | PATHOLOGY ASSOCIATES OF AURORA LLC | AURORA | IL | PATHOLOGY | 3 | 2,181 | 0.3% | (630) 978-6700 |
| 42 | K M B S C | CLINTON | IL | PATHOLOGY | 3 | 2,154 | 0.3% | (217) 935-9571 |
| 43 | GENESIS HEALTH SYSTEM | DAVENPORT | IL | FAMILY PRACTICE | 217 | 2,050 | 0.3% | (563) 421-6610 |
| 44 | LABORATORY AND PATHOLOGY DIAGNOSTICS LLC | NAPERVILLE | IL | PATHOLOGY | 14 | 1,964 | 0.3% | (630) 355-0450 |
| 45 | RENUKA H BHATT MDSC | JOLIET | IL | PHYSICIAN ASSISTANT | 7 | 1,945 | 0.3% | (815) 676-5310 |
| 46 | CONSULTANTS IN LABORATORY MEDICINE AND PATHOLOGY LTD | EVERGREEN PARK | IL | PATHOLOGY | 3 | 1,853 | 0.3% | (708) 229-5813 |
| 47 | ROCKFORD ASSOCIATED PATHOLOGISTS LTD | ROCKFORD | IL | PATHOLOGY | 5 | 1,812 | 0.3% | (815) 489-4267 |
| 48 | KINGSLEY LANE ANATOMIC PATHOLOGY | NEWPORT NEWS | IL | PATHOLOGY | 4 | 1,801 | 0.3% | (757) 398-2258 |
| 49 | ILLINOIS PATHOLOGIST SERVICES LLC | ROCKFORD | IL | PATHOLOGY | 11 | 1,800 | 0.3% | (815) 395-5116 |
| 50 | ARLINGTON DERMATOLOGY SC | ROLLING MEADOWS | IL | DERMATOLOGY | 5 | 1,784 | 0.3% | (847) 392-5440 |
| 51 | ADDISON-CENTRAL PATHOLOGY PLLC | CHICAGO | IL | PATHOLOGY | 14 | 1,752 | 0.3% | (847) 757-7515 |
| 52 | SSM HEALTH CARE GROUP | SAINT LOUIS | IL | NURSE PRACTITIONER | 921 | 1,372 | 0.2% | (314) 977-7455 |
| 53 | AMERIPATH INDIANAPOLIS PC | INDIANAPOLIS | IL | PATHOLOGY | 35 | 1,338 | 0.2% | (317) 275-8072 |
| 54 | MAWD PATHOLOGY GROUP PA | KANSAS CITY | IL | PATHOLOGY | 39 | 1,310 | 0.2% | (913) 396-8509 |
| 55 | HART ROAD PATHOLOGY, SC | BELOIT | IL | PATHOLOGY | 3 | 1,273 | 0.2% | (608) 364-5131 |
| 56 | INTEGRATED REGIONAL LABORATORIES PATHOLOGY SERVICES, LLC | ATLANTIS | IL | PATHOLOGY | 133 | 1,267 | 0.2% | (561) 548-3639 |
| 57 | ALLIANCE PATHOLOGY CONSULTANTS PLLC | ELK GROVE VILLAGE | IL | PATHOLOGY | 11 | 1,189 | 0.2% | (847) 437-5500 |
| 58 | PRAIRIE RIDGE HOSPITAL AND HEALTH SERVICES | EVANSVILLE | IL | NURSE PRACTITIONER | 67 | 1,179 | 0.2% | (218) 948-2040 |
| 59 | DEERFIELD DERMATOLOGY ASSOCIATES, LTD. | DEERFIELD | IL | PATHOLOGY | 16 | 1,174 | 0.2% | (847) 480-0004 |
| 60 | CLEARWATER PATHOLOGY ASSOCIATES | CLEARWATER | IL | PATHOLOGY | 9 | 1,085 | 0.2% | (727) 462-7000 |
| 61 | OSF MULTI-SPECIALTY GROUP | PEORIA | IL | NURSE PRACTITIONER | 2091 | 1,056 | 0.2% | (309) 683-5050 |
| 62 | BIELINSKI DERMATOLOGY GROUP LLC | ORLAND PARK | IL | PHYSICIAN ASSISTANT | 10 | 1,036 | 0.2% | (708) 636-3767 |
| 63 | MICHIGAN DIAGNOSTIC PATHOLOGISTS PLLC | SOUTHFIELD | IL | PATHOLOGY | 8 | 1,033 | 0.2% | (248) 849-5401 |
| 64 | UINTAH BASIN MEDICAL CENTER | ROOSEVELT | IL | NURSE PRACTITIONER | 62 | 1,027 | 0.2% | (435) 722-4691 |
| 65 | WEST CENTRAL PATHOLOGY SPECIALISTS SC | QUINCY | IL | PATHOLOGY | 4 | 1,004 | 0.2% | 21722384006209 |
| 66 | UNIVERSITY HOSPITALS MEDICAL GROUP INC | CLEVELAND | IL | NURSE PRACTITIONER | 2232 | 987 | 0.2% | — |
| 67 | CITY OF HOPE MEDICAL GROUP OF ILLINOIS PLLC | ZION | IL | PHYSICIAN ASSISTANT | 126 | 969 | 0.2% | (847) 872-4561 |
| 68 | NORTH SHORE PATHOLOGY CONSULTANTS SC | EVANSTON | IL | PATHOLOGY | 3 | 966 | 0.2% | (847) 316-2284 |
| 69 | COOK COUNTY | CHICAGO | IL | INTERNAL MEDICINE | 794 | 939 | 0.1% | (312) 572-2000 |
| 70 | PATHOLOGY ASSOCIATES PC | SAINT LOUIS | IL | PATHOLOGY | 8 | 925 | 0.1% | (314) 525-4768 |
| 71 | BEAIRD DERMATOLOGY SC | HOFFMAN ESTATES | IL | PHYSICIAN ASSISTANT | 6 | 883 | 0.1% | (224) 484-0183 |
| 72 | NORTH SHORE PATHOLOGISTS SC | MILWAUKEE | IL | PATHOLOGY | 15 | 864 | 0.1% | (414) 647-7400 |
| 73 | VISTA PATHOLOGY LABORATORY LLC | MEDFORD | IL | PATHOLOGY | 12 | 844 | 0.1% | (541) 770-4559 |
| 74 | ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI | NEW YORK | IL | PHYSICIAN ASSISTANT | 2818 | 815 | 0.1% | (212) 241-4812 |
| 75 | MCV ASSOCIATED PHYSICIANS | RICHMOND | IL | NURSE PRACTITIONER | 1791 | 806 | 0.1% | (804) 828-9000 |
| 76 | ASPIRUS STEVENS POINT HOSPITAL AND CLINICS, INC. | STEVENS POINT | IL | NURSE PRACTITIONER | 132 | 776 | 0.1% | (715) 346-5000 |
| 77 | SCH LABORATORY PHYSICIANS SC | CHICAGO | IL | PATHOLOGY | 4 | 764 | 0.1% | (773) 878-8200 |
| 78 | NAPLES PATHOLOGY ASSOCIATES PA | NAPLES | IL | PATHOLOGY | 12 | 757 | 0.1% | (239) 624-3570 |
| 79 | DOLEHIDE DERMATOLOGY, S.C. | OAK LAWN | IL | DERMATOLOGY | 3 | 735 | 0.1% | (773) 680-4296 |
| 80 | VALLEY PATHOLOGY, P.A. | EDINBURG | IL | PATHOLOGY | 5 | 622 | 0.1% | (956) 362-8677 |
| 81 | METHODIST PATHOLOGY ASSOCIATES PLLC | HOUSTON | IL | PATHOLOGY | 80 | 618 | 0.1% | (713) 394-6450 |
| 82 | HEALTHONE IRL PATHOLOGY SERVICES LLC | ENGLEWOOD | IL | PATHOLOGY | 20 | 588 | 0.1% | (303) 788-6130 |
| 83 | SAINT FRANCIS MEDICAL CENTER | CAPE GIRARDEAU | IL | NURSE PRACTITIONER | 435 | 574 | 0.1% | (573) 331-3000 |
| 84 | SHETH DERMATOLOGY PC | ORLAND PARK | IL | PHYSICIAN ASSISTANT | 3 | 535 | 0.1% | (708) 323-3376 |
| 85 | PAN PACIFIC PATHOLOGISTS LLC | HILO | IL | PATHOLOGY | 19 | 495 | 0.1% | (808) 974-6898 |
| 86 | UNIVERSITY OF TEXAS SOUTHWESTERN MEDICAL CENTER AT DALLAS | DALLAS | IL | PHYSICIAN ASSISTANT | 3200 | 470 | 0.1% | (214) 633-5555 |
| 87 | OU HEALTH PARTNERS INC | OKLAHOMA CITY | IL | PHYSICIAN ASSISTANT | 1160 | 454 | 0.1% | (405) 271-4311 |
| 88 | YALE UNIVERSITY | NEW HAVEN | IL | PHYSICIAN ASSISTANT | 2649 | 449 | 0.1% | (203) 688-4242 |
| 89 | CHATTANOOGA SKIN AND CANCER CLINIC | CHATTANOOGA | IL | DERMATOLOGY | 13 | 363 | 0.1% | (423) 899-2700 |
| 90 | PATHOLOGY CHP SC | CHICAGO | IL | PATHOLOGY | 4 | 363 | 0.1% | (773) 665-3679 |
| 91 | SIERRA PATHOLOGY ASSOCIATES, INC | RENO | IL | PATHOLOGY | 10 | 343 | 0.1% | (775) 334-3450 |
| 92 | DUKE HEALTH INTEGRATED PRACTICE INC | DURHAM | IL | PHYSICIAN ASSISTANT | 3051 | 327 | 0.1% | (919) 684-8111 |
| 93 | MOUNT SINAI COMMUNITY FOUNDATION | CHICAGO | IL | INTERNAL MEDICINE | 253 | 316 | 0.1% | (773) 257-6672 |
| 94 | IU HEALTH MEDICAL GROUP, LLC | INDIANAPOLIS | IL | NURSE PRACTITIONER | 4250 | 288 | 0.0% | (888) 484-3258 |
| 95 | ILLINOIS PATHOLOGY ASSOCIATES, LTD. | OAK PARK | IL | PATHOLOGY | 3 | 269 | 0.0% | (708) 383-6200 |
| 96 | BANNER-UNIVERSITY MEDICAL GROUP | TUCSON | IL | INTERNAL MEDICINE | 1068 | 261 | 0.0% | (520) 694-0111 |
| 97 | TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK | NEW YORK | IL | NURSE PRACTITIONER | 2273 | 236 | 0.0% | (212) 305-8559 |
| 98 | OCHSNER CLINIC LLC | NEW ORLEANS | IL | NURSE PRACTITIONER | 2839 | 236 | 0.0% | (504) 842-3000 |
| 99 | MORRIS HOSPITAL | MORRIS | IL | NURSE PRACTITIONER | 116 | 234 | 0.0% | (815) 942-0545 |
| 100 | NASSAU HEALTH CARE CORPORATION | EAST MEADOW | IL | INTERNAL MEDICINE | 180 | 232 | 0.0% | (516) 486-6862 |
*Share of Illinois's disclosed Medicare-FFS services for 88305, counted once per clinician. Volume is placed in the state it was billed from, so this page ranks the groups actually billing 88305 in Illinois — including groups registered elsewhere ("City" is each 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.
How to read this. Figures are Medicare fee-for-service only — not all-payer — from the CMS Medicare Physician & Other Practitioners Public Use File (Part B), CY2024 release. CMS suppresses any provider×code row under 11 beneficiaries, so a missing group means "suppressed," never zero. "Charges" are provider-submitted amounts, not payments. Groups are ranked by measured service volume attributed to clinicians in exactly one group — clinicians affiliated with several groups are listed in rosters but never volume-attributed to a single group — a direct read of the public record, not a rating or quality score. Full method: Methods & Sources.
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 →