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Medicare Colorado · CY2024

Who bills the most Anesthesia for procedure on small and large bowel using an endoscope (00813) to Medicare in Colorado?

Medicare Part B FFS · CY2024 · as published by CMS
49
Billing groups
2,095
Named-group FFS services
$2,167,750
Named-group submitted charges
$1,035
Avg charge / service
$134
Avg allowed / service
48%
Top-5 concentration
0%
Independent share

49 physician groups billed Anesthesia for procedure on small and large bowel using an endoscope (00813) to Medicare fee-for-service in Colorado in 2024; the top five named groups hold 48% of that volume, and independent (non-hospital-affiliated) groups deliver 0%.

00813 — Anesthesia for procedure on small and 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).

Payer-mix context

Medicare fee-for-service covers 47% of Medicare in Colorado; Medicare Advantage penetration 44% → 53% since 2020.

Market structure — concentration, independent share, and the consolidation trend for this market — is part of the market analytics platform — built, not launched yet. Notify me at launch →
#Physician groupCityStSpecialty Providers 00813 svcs Share*Phone
1 SOUTH DENVER GASTROENTEROLOGY, P.C LONE TREECOGASTROENTEROLOGY 53 334 10.2% (303) 788-8888
2 US ANESTHESIA PARTNERS OF COLORADO INC DENVERCOANESTHESIOLOGY 496 235 7.2% (303) 438-3999
3 CENTERS FOR GASTROENTEROLOGY FORT COLLINSCOGASTROENTEROLOGY 32 180 5.5% (970) 207-9773
4 CATHOLIC HEALTH INITIATIVES COLORADO WOODLAND PARKCOPHYSICIAN ASSISTANT 1266 150 4.6% (719) 776-4780
5 UNIVERSITY PHYSICIANS INCORPORATED AURORACOPHYSICIAN ASSISTANT 3122 117 3.6% (720) 777-1234
6 DENVER DIGESTIVE HEALTH SPECIALISTS INC DENVERCOGASTROENTEROLOGY 12 68 2.1% (303) 355-3525
7 NCAP IMH LLC LARAMIECOCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) 10 61 1.9% (970) 224-2985
8 GLENWOOD ANESTHESIA PROFESSIONALS, PC GLENWOOD SPGSCOANESTHESIOLOGY 22 54 1.7% (970) 945-7564
9 MONTANA GASTROENTEROLOGY, PLLC MISSOULACOGASTROENTEROLOGY 24 45 1.4% (406) 541-6844
10 U S ANESTHESIA PARTNERS OF TEXAS, PA HOUSTONCOANESTHESIOLOGY 2754 42 1.3% (713) 375-7000
11 SUMMIT ANESTHESIA ASSOCIATES PLLC KALISPELLCOCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) 3 42 1.3% 40675668874003
12 METROPOLITAN ANESTHESIA LLC PORTLANDCOCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) 32 42 1.3% (503) 297-8081
13 PHYSICIAN ANESTHESIA SERVICES PC WHEAT RIDGECOCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) 113 41 1.3% (303) 425-8504
14 ROCKY MOUNTAIN STATE ANESTHESIA PROVIDERS GREELEYCOCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) 51 36 1.1% (970) 810-4121
15 VALLEY ANESTHESIA PC SALEMCOCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) 67 35 1.1% (540) 772-3400
16 ANESTHESIA PHYSICIANS LTD SIOUX FALLSCOANESTHESIOLOGY 23 30 0.9% (605) 386-1084
17 AMS ANESTHETIST SERVICES LLC PENSACOLACOCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) 148 30 0.9% (850) 202-4700
18 RB ANESTHESIA LLC COLORADO SPRINGSCOCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) 9 28 0.9% (719) 867-7862
19 NORTHERN COLORADO ANESTHESIA PROFESSIONALS PLLC LOVELANDCOCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) 145 27 0.8%
20 NORMAN ANESTHESIA PROVIDERS, P.C. NORMANCOCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) 34 27 0.8% (405) 515-1000
21 ANESTHESIA MEDICAL GROUP OF SANTA MARIA INC SANTA MARIACOANESTHESIOLOGY 20 26 0.8% (805) 739-3000
22 ARKANSAS VALLEY REGIONAL MEDICAL CENTER LA JUNTACONURSE PRACTITIONER 15 25 0.8% (719) 383-5960
23 ANESTHESIA ASSOCIATES NORTHWEST LLC SALEMCOCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) 94 25 0.8% (503) 561-8170
24 ANESTHESIACARE PC MOBILECOCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) 23 25 0.8% (251) 473-2020
25 KINGS DAUGHTERS MEDICAL SPECIALTIES INC ASHLANDCONURSE PRACTITIONER 392 23 0.7% (606) 325-6888
26 AVERA MCKENNAN SIOUX FALLSCONURSE PRACTITIONER 964 23 0.7% (605) 322-5180
27 ANESTHESIA OF THE ROCKY MOUNTAINS, LLC COLORADO SPRINGSCOCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) 10 22 0.7% (719) 632-7101
28 SANTA MARIA GASTROENTEROLOGY MEDICAL GROUP INC. SANTA MARIACOCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) 23 20 0.6% (805) 922-6581
29 NATIONAL JEWISH HEALTH DENVERCOPULMONARY DISEASE 243 19 0.6% (303) 398-1355
30 UNIVERSITY OF UTAH ADULT SERVICES SALT LAKE CITYCOPHYSICIAN ASSISTANT 1783 19 0.6% (801) 581-2121
31 ANESTHESIOLOGISTS ASSOCIATED PC BIRMINGHAMCOCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) 401 16 0.5% (205) 848-2925
32 MEDSTREAM ANESTHESIA HAWAII LLC KAMUELACOCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) 24 15 0.5% (808) 885-4444
33 DELTA COUNTY MEMORIAL HOSPITAL DELTACOPHYSICIAN ASSISTANT 104 15 0.5% (970) 399-2895
34 GALLATIN VALLEY ANESTHESIA ASSOCIATES PC BOZEMANCOANESTHESIOLOGY 35 15 0.5% (406) 587-8631
35 MONARCH ANESTHESIA LLC SALIDACOCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) 7 15 0.5% (719) 530-2200
36 MEDSTAR MEDICAL GROUP II LLC WASHINGTONCOPHYSICIAN ASSISTANT 3707 15 0.5% (202) 429-2401
37 UNIVERSITY OF WISCONSIN MEDICAL FOUNDATION INC MADISONCOPHYSICIAN ASSISTANT 2523 14 0.4% (608) 287-2050
38 AMERICAN ANESTHESIOLOGY OF VIRGINIA PC LEESBURGCOCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) 511 13 0.4% (703) 724-9950
39 ANESTHESIA DYNAMICS LLC LECANTOCOCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) 845 13 0.4% (352) 527-1825
40 PROFESSIONAL ANESTHESIA SERVICES OF KENTUCKY PLLC LOUISVILLECOCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) 317 13 0.4% (502) 629-8000
41 LUTHERAN HOSPITAL ASSOCIATION OF THE SAN LUIS VALLEY ALAMOSACODIAGNOSTIC RADIOLOGY 155 12 0.4% (719) 589-2511
42 POUDRE VALLEY MEDICAL GROUP LLC COLORADO SPRINGSCOPHYSICIAN ASSISTANT 2390 11 0.3%
43 SPECTRUM HEALTHCARE PARTNERS PA PORTLANDCODIAGNOSTIC RADIOLOGY 281 11 0.3% (207) 828-2160
44 BOULDER VALLEY ANESTHESIOLOGY, PLLC BOULDERCOANESTHESIOLOGY 61 11 0.3% (303) 415-7000
45 COLUMBIA LUTHERAN CHARITIES ASTORIACONURSE PRACTITIONER 109 11 0.3% (503) 338-4085
46 AERO ANESTHESIA, PLLC SPARTACOCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) 4 11 0.3% (931) 738-2164
47 HOSPITALIST MEDICINE PHYSICIANS OF COLORADO - DENVER PC DENVERCOCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) 71 11 0.3% (303) 812-6400
48 ANESTHESIA AND ANALGESIA MEDICAL GROUP INC SANTA ROSACOANESTHESIOLOGY 72 11 0.3% (707) 546-3210
49 BENEFIS HOSPITALS INC GREAT FALLSCOPHYSICIAN ASSISTANT 400 11 0.3% (406) 455-5000

*Share of Colorado's disclosed Medicare-FFS services for 00813, counted once per clinician. Volume is placed in the state it was billed from, so this page ranks the groups actually billing 00813 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 →