Who bills the most Anesthesia for other procedure on large bowel using an endoscope (00811) to Medicare in Colorado?
Medicare Part B FFS · CY2024 · as published by CMS85 physician groups billed Anesthesia for other procedure on large bowel using an endoscope (00811) to Medicare fee-for-service in Colorado in 2024; the top five named groups hold 55% of that volume, and independent (non-hospital-affiliated) groups deliver 0%.
00811 — Anesthesia for other procedure on large bowel using an endoscope · Source: CMS Medicare Physician & Other Practitioners PUF (Part B), CY2024 release. Medicare fee-for-service only.
Snapshot covers the whole Colorado market — the table below shows the top 100 groups (free tier).
Medicare fee-for-service covers 47% of Medicare in Colorado; Medicare Advantage penetration 44% → 53% since 2020.
| # | Physician group | City | St | Specialty | Providers | 00811 svcs | Share* | Phone |
|---|---|---|---|---|---|---|---|---|
| 1 | UNIVERSITY PHYSICIANS INCORPORATED | AURORA | CO | PHYSICIAN ASSISTANT | 3122 | 1,959 | 14.2% | (720) 777-1234 |
| 2 | US ANESTHESIA PARTNERS OF COLORADO INC | DENVER | CO | ANESTHESIOLOGY | 496 | 1,214 | 8.8% | (303) 438-3999 |
| 3 | CATHOLIC HEALTH INITIATIVES COLORADO | WOODLAND PARK | CO | PHYSICIAN ASSISTANT | 1266 | 849 | 6.1% | (719) 776-4780 |
| 4 | SOUTH DENVER GASTROENTEROLOGY, P.C | LONE TREE | CO | GASTROENTEROLOGY | 53 | 806 | 5.8% | (303) 788-8888 |
| 5 | CENTERS FOR GASTROENTEROLOGY | FORT COLLINS | CO | GASTROENTEROLOGY | 32 | 499 | 3.6% | (970) 207-9773 |
| 6 | PHYSICIAN ANESTHESIA SERVICES PC | WHEAT RIDGE | CO | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 113 | 474 | 3.4% | (303) 425-8504 |
| 7 | DENVER DIGESTIVE HEALTH SPECIALISTS INC | DENVER | CO | GASTROENTEROLOGY | 12 | 278 | 2.0% | (303) 355-3525 |
| 8 | GLENWOOD ANESTHESIA PROFESSIONALS, PC | GLENWOOD SPGS | CO | ANESTHESIOLOGY | 22 | 238 | 1.7% | (970) 945-7564 |
| 9 | SUMMIT ANESTHESIA ASSOCIATES PLLC | KALISPELL | CO | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 3 | 217 | 1.6% | 40675668874003 |
| 10 | BOULDER VALLEY ANESTHESIOLOGY, PLLC | BOULDER | CO | ANESTHESIOLOGY | 61 | 146 | 1.1% | (303) 415-7000 |
| 11 | POUDRE VALLEY MEDICAL GROUP LLC | COLORADO SPRINGS | CO | PHYSICIAN ASSISTANT | 2390 | 144 | 1.0% | — |
| 12 | HAMPTON ROADS GASTROENTEROLOGY PC | HAMPTON | CO | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 10 | 140 | 1.0% | (757) 826-3434 |
| 13 | ROCKY MOUNTAIN STATE ANESTHESIA PROVIDERS | GREELEY | CO | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 51 | 134 | 1.0% | (970) 810-4121 |
| 14 | NORTHERN COLORADO ANESTHESIA PROFESSIONALS PLLC | LOVELAND | CO | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 145 | 133 | 1.0% | — |
| 15 | ANESTHESIA ASSOCIATES NORTHWEST LLC | SALEM | CO | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 94 | 131 | 0.9% | (503) 561-8170 |
| 16 | ANESTHESIA OF THE ROCKY MOUNTAINS, LLC | COLORADO SPRINGS | CO | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 10 | 127 | 0.9% | (719) 632-7101 |
| 17 | SANTA MARIA GASTROENTEROLOGY MEDICAL GROUP INC. | SANTA MARIA | CO | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 23 | 123 | 0.9% | (805) 922-6581 |
| 18 | NCAP IMH LLC | LARAMIE | CO | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 10 | 97 | 0.7% | (970) 224-2985 |
| 19 | ANESTHESIACARE PC | MOBILE | CO | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 23 | 96 | 0.7% | (251) 473-2020 |
| 20 | ANESTHESIA PHYSICIANS LTD | SIOUX FALLS | CO | ANESTHESIOLOGY | 23 | 87 | 0.6% | (605) 386-1084 |
| 21 | VALLEY ANESTHESIA PC | SALEM | CO | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 67 | 83 | 0.6% | (540) 772-3400 |
| 22 | MONTANA GASTROENTEROLOGY, PLLC | MISSOULA | CO | GASTROENTEROLOGY | 24 | 80 | 0.6% | (406) 541-6844 |
| 23 | DELTA COUNTY MEMORIAL HOSPITAL | DELTA | CO | PHYSICIAN ASSISTANT | 104 | 79 | 0.6% | (970) 399-2895 |
| 24 | DIEHL ANESTHESIA INC | COLORADO SPRINGS | CO | ANESTHESIOLOGY | 35 | 70 | 0.5% | (719) 258-1250 |
| 25 | UNIVERSITY OF PITTSBURGH PHYSICIANS | PITTSBURGH | CO | DIAGNOSTIC RADIOLOGY | 4291 | 64 | 0.5% | — |
| 26 | UNIVERSITY OF WISCONSIN MEDICAL FOUNDATION INC | MADISON | CO | PHYSICIAN ASSISTANT | 2523 | 58 | 0.4% | (608) 287-2050 |
| 27 | ELK RIVER ANESTHESIA ASSOCIATES, P.C. | STEAMBOAT SPR | CO | ANESTHESIOLOGY | 10 | 56 | 0.4% | (970) 879-1322 |
| 28 | AMS ANESTHETIST SERVICES LLC | PENSACOLA | CO | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 148 | 55 | 0.4% | (850) 202-4700 |
| 29 | WRAY COMMUNITY DISTRICT HOSPITAL | WRAY | CO | PHYSICIAN ASSISTANT | 30 | 54 | 0.4% | (970) 332-4811 |
| 30 | AMERICAN ANESTHESIOLOGY OF VIRGINIA PC | LEESBURG | CO | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 511 | 48 | 0.3% | (703) 724-9950 |
| 31 | ANESTHESIOLOGISTS ASSOCIATED PC | BIRMINGHAM | CO | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 401 | 42 | 0.3% | (205) 848-2925 |
| 32 | CHS ANESTHESIA SERVICES GROUP INC | CHARLOTTE | CO | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 749 | 42 | 0.3% | (704) 355-2000 |
| 33 | GREEN BAY ANESTHESIA ASSOC. SC | GREEN BAY | CO | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 68 | 42 | 0.3% | (920) 433-0111 |
| 34 | COLUMBIA LUTHERAN CHARITIES | ASTORIA | CO | NURSE PRACTITIONER | 109 | 41 | 0.3% | (503) 338-4085 |
| 35 | SPECTRUM HEALTHCARE PARTNERS PA | PORTLAND | CO | DIAGNOSTIC RADIOLOGY | 281 | 38 | 0.3% | (207) 828-2160 |
| 36 | METROPOLITAN ANESTHESIA LLC | PORTLAND | CO | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 32 | 37 | 0.3% | (503) 297-8081 |
| 37 | ANESTHESIA PARTNERS OF COLORADO | EDWARDS | CO | ANESTHESIOLOGY | 88 | 34 | 0.2% | (970) 569-7400 |
| 38 | PROFESSIONAL ANESTHESIA SERVICES OF KENTUCKY PLLC | LOUISVILLE | CO | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 317 | 33 | 0.2% | (502) 629-8000 |
| 39 | OU HEALTH PARTNERS INC | OKLAHOMA CITY | CO | PHYSICIAN ASSISTANT | 1160 | 32 | 0.2% | (405) 271-4311 |
| 40 | SMG ANESTHESIA SPECIALISTS LLC | NORFOLK | CO | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 443 | 31 | 0.2% | (757) 261-6000 |
| 41 | AVERA MCKENNAN | SIOUX FALLS | CO | NURSE PRACTITIONER | 964 | 31 | 0.2% | (605) 322-5180 |
| 42 | ARKANSAS VALLEY REGIONAL MEDICAL CENTER | LA JUNTA | CO | NURSE PRACTITIONER | 15 | 30 | 0.2% | (719) 383-5960 |
| 43 | NATIONAL JEWISH HEALTH | DENVER | CO | PULMONARY DISEASE | 243 | 29 | 0.2% | (303) 398-1355 |
| 44 | ANESTHESIA AND ANALGESIA MEDICAL GROUP INC | SANTA ROSA | CO | ANESTHESIOLOGY | 72 | 27 | 0.2% | (707) 546-3210 |
| 45 | MONARCH ANESTHESIA LLC | SALIDA | CO | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 7 | 27 | 0.2% | (719) 530-2200 |
| 46 | ANESTHESIA MEDICAL GROUP OF SANTA MARIA INC | SANTA MARIA | CO | ANESTHESIOLOGY | 20 | 25 | 0.2% | (805) 739-3000 |
| 47 | SPARTANBURG MEDICAL CENTER | SPARTANBURG | CO | NURSE PRACTITIONER | 1070 | 25 | 0.2% | (864) 587-3000 |
| 48 | ANESTHESIA ASSOCIATES OF MEDFORD PC | MEDFORD | CO | ANESTHESIOLOGY | 47 | 24 | 0.2% | (541) 773-7273 |
| 49 | ST VINCENT HOSPITAL | SANTA FE | CO | PHYSICIAN ASSISTANT | 313 | 23 | 0.2% | — |
| 50 | ANESTHESIA DYNAMICS LLC | LECANTO | CO | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 845 | 23 | 0.2% | (352) 527-1825 |
| 51 | BENEFIS HOSPITALS INC | GREAT FALLS | CO | PHYSICIAN ASSISTANT | 400 | 23 | 0.2% | (406) 455-5000 |
| 52 | NPH ANESTHESIA OF UTAH LLC | OGDEN | CO | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 94 | 22 | 0.2% | (469) 998-7443 |
| 53 | CLEVELAND CLINIC | CLEVELAND | CO | PHYSICIAN ASSISTANT | 6828 | 22 | 0.2% | — |
| 54 | INNOVIS HEALTH LLC | FARGO | CO | NURSE PRACTITIONER | 565 | 21 | 0.2% | (701) 364-6600 |
| 55 | U S ANESTHESIA PARTNERS OF TEXAS, PA | HOUSTON | CO | ANESTHESIOLOGY | 2754 | 19 | 0.1% | (713) 375-7000 |
| 56 | NORMAN ANESTHESIA PROVIDERS, P.C. | NORMAN | CO | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 34 | 19 | 0.1% | (405) 515-1000 |
| 57 | HOSPITALIST MEDICINE PHYSICIANS OF COLORADO - DENVER PC | DENVER | CO | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 71 | 19 | 0.1% | (303) 812-6400 |
| 58 | CAMPBELL COUNTY HOSPITAL DISTRICT | GILLETTE | CO | PHYSICIAN ASSISTANT | 134 | 19 | 0.1% | (307) 688-3636 |
| 59 | SURGICAL ANESTHESIA ASSOCIATES PLLC | WASHINGTON | CO | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 97 | 18 | 0.1% | (202) 537-4000 |
| 60 | THE AROOSTOOK MEDICAL CENTER | PRESQUE ISLE | CO | NURSE PRACTITIONER | 112 | 18 | 0.1% | — |
| 61 | COMMUNITY MEDICAL GROUP LLC | GRAND JUNCTION | CO | PHYSICIAN ASSISTANT | 108 | 18 | 0.1% | (970) 243-3300 |
| 62 | RB ANESTHESIA LLC | COLORADO SPRINGS | CO | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 9 | 17 | 0.1% | (719) 867-7862 |
| 63 | ASSOCIATED ANESTHESIOLOGISTS OF THE CENTRAL COAST | SAN LUIS OBISPO | CO | ANESTHESIOLOGY | 38 | 17 | 0.1% | (805) 928-1731 |
| 64 | KINGS DAUGHTERS MEDICAL SPECIALTIES INC | ASHLAND | CO | NURSE PRACTITIONER | 392 | 16 | 0.1% | (606) 325-6888 |
| 65 | WOODLAND PARK ANESTHESIA LLC | WOODLAND PARK | CO | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 2 | 16 | 0.1% | (719) 687-9999 |
| 66 | UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL | CHAPEL HILL | CO | NURSE PRACTITIONER | 2120 | 16 | 0.1% | (984) 215-5556 |
| 67 | AERO ANESTHESIA, PLLC | SPARTA | CO | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 4 | 15 | 0.1% | (931) 738-2164 |
| 68 | SOUTHWEST OHIO ANESTHESIA CONSULTANTS LLC | CINCINNATI | CO | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 375 | 14 | 0.1% | (513) 624-4500 |
| 69 | HARVARD MEDICAL FACULTY PHYS AT BETH ISRAEL DEACONESS MED CTR INC | BOSTON | CO | INTERNAL MEDICINE | 1689 | 14 | 0.1% | (781) 983-9088 |
| 70 | ANESTHESIA ASSOCIATES OF NEW MEXICO P C | ALBUQUERQUE | CO | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 66 | 14 | 0.1% | (505) 841-1234 |
| 71 | PROVIDENCE ANCHORAGE ANESTHESIA MEDICAL GROUP PC | ANCHORAGE | CO | ANESTHESIOLOGY | 49 | 14 | 0.1% | (907) 561-0005 |
| 72 | GALLATIN VALLEY ANESTHESIA ASSOCIATES PC | BOZEMAN | CO | ANESTHESIOLOGY | 35 | 14 | 0.1% | (406) 587-8631 |
| 73 | MEDSTAR MEDICAL GROUP II LLC | WASHINGTON | CO | PHYSICIAN ASSISTANT | 3707 | 14 | 0.1% | (202) 429-2401 |
| 74 | GUNNISON VALLEY HOSPITAL | GUNNISON | CO | PHYSICIAN ASSISTANT | 53 | 13 | 0.1% | (970) 641-1456 |
| 75 | MEDSTREAM ANESTHESIA HAWAII LLC | KAMUELA | CO | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 24 | 13 | 0.1% | (808) 885-4444 |
| 76 | ORANGE COUNTY ANESTHESIA ASSOCIATES, LLC | ORLANDO | CO | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 9 | 13 | 0.1% | (407) 506-0006 |
| 77 | PIEDMONT ANESTHESIA LLC | STOCKBRIDGE | CO | ANESTHESIOLOGY ASSISTANT | 531 | 13 | 0.1% | (800) 242-1131 |
| 78 | AMERICAN ANESTHESIOLOGY SERVICES OF FLORIDA INC | FORT MYERS | CO | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 132 | 13 | 0.1% | (239) 489-4909 |
| 79 | CHOCTAW NATION OF OKLAHOMA | TALIHINA | CO | DIAGNOSTIC RADIOLOGY | 269 | 13 | 0.1% | — |
| 80 | TETON COUNTY HOSPITAL DISTRICT | JACKSON | CO | PHYSICIAN ASSISTANT | 111 | 12 | 0.1% | (307) 733-3636 |
| 81 | LUTHERAN HOSPITAL ASSOCIATION OF THE SAN LUIS VALLEY | ALAMOSA | CO | DIAGNOSTIC RADIOLOGY | 155 | 12 | 0.1% | (719) 589-2511 |
| 82 | PREMIER ANESTHESIA OF OREGON PC | OREGON CITY | CO | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 31 | 12 | 0.1% | (503) 656-1631 |
| 83 | LA PAZ REGIONAL HOSPITAL INC | PARKER | CO | DIAGNOSTIC RADIOLOGY | 51 | 12 | 0.1% | (928) 669-7380 |
| 84 | EMERGENCHEALTH PLLC | SAN ANTONIO | CO | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 984 | 12 | 0.1% | (210) 921-2000 |
| 85 | FRANCISCAN MEDICAL GROUP | TACOMA | CO | PHYSICIAN ASSISTANT | 1407 | 11 | 0.1% | (253) 428-2200 |
*Share of Colorado's disclosed Medicare-FFS services for 00811, counted once per clinician. Volume is placed in the state it was billed from, so this page ranks the groups actually billing 00811 in Colorado — 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 →