Intermountain Health St. Mary's Regional Hospital: charges and Medicare payments

Intermountain Health St. Mary's Regional Hospital reported 1,719 Medicare inpatient stays across 63 DRGs in 2024. Across them it charged 4.53 times what it was paid — among the lower ratios in Colorado, number 29 of 37 hospitals with at least 100 stays (state median 6.33×, national 4.15×). Its most frequent stay was DRG 871, Septicemia or Severe Sepsis without MV >96 Hours with MCC: 238 stays at an average charge of $66,499, 26% below the national average. It also billed 2,512 outpatient services, charging 6.97 times what Medicare paid.

1Medicare inpatient stays 1,719
2Charge ÷ paid, inpatient 4.53×
3Rank in CO (highest ratio = 1) 29 of 37
4CMS price-transparency actions 0

Average charge per stay at Intermountain Health St. Mary's Regional Hospital, its 10 most frequent DRGs, bars to scale. Source: CMS DY2024.

Inpatient stays

For the 63 DRGs that can be compared with the national average, Intermountain Health St. Mary's Regional Hospital charged more than the national average in 4 (6%). Payments follow Medicare's rates, so they usually vary far less than charges.

DRG	Stays	Avg charge	vs US	Avg paid
871 Septicemia or Severe Sepsis without MV >96 Hours with MCC	238	$66,499	-26%	$17,200
291 Heart Failure and Shock with MCC	78	$49,589	-12%	$11,088
274 Percutaneous and Other Intracardiac Procedures without MCC	57	$136,505	-13%	$27,272
266 Endovascular Cardiac Valve Replacement and Supplement...	56	$250,122	-12%	$54,192
065 Intracranial Hemorrhage or Cerebral Infarction with CC or...	55	$46,422	-17%	$8,648
481 Hip and Femur Procedures except Major Joint with CC	55	$77,149	-23%	$17,890
853 Infectious and Parasitic Diseases with O.R. Procedures with...	55	$190,248	-17%	$45,571
322 Percutaneous Cardiovascular Procedures with Intraluminal...	52	$91,320	-20%	$16,415
193 Simple Pneumonia and Pleurisy with MCC	47	$44,901	-25%	$12,369
267 Endovascular Cardiac Valve Replacement and Supplement...	46	$210,941	-5%	$41,064
064 Intracranial Hemorrhage or Cerebral Infarction with MCC	43	$88,323	-12%	$18,000
025 Craniotomy and Endovascular Intracranial Procedures with MCC	38	$198,291	-14%	$43,842
177 Respiratory Infections and Inflammations with MCC	38	$59,629	-16%	$14,730
378 Gastrointestinal Hemorrhage with CC	35	$37,509	-23%	$9,004
872 Septicemia or Severe Sepsis without MV >96 Hours without MCC	34	$33,956	-31%	$8,980
418 Laparoscopic Cholecystectomy without C.D.E. with CC	31	$73,738	-21%	$14,204
175 Pulmonary Embolism with MCC or Acute Cor Pulmonale	29	$66,707	+2%	$17,077
522 Hip Replacement with Principal Diagnosis of Hip Fracture...	28	$93,442	-9%	$18,206
280 Acute Myocardial Infarction, Discharged Alive with MCC	27	$56,766	-25%	$13,760
190 Chronic Obstructive Pulmonary Disease with MCC	26	$45,074	-11%	$9,633
640 Miscellaneous Disorders of Nutrition, Metabolism, Fluids and...	24	$51,991	-14%	$11,646
321 Percutaneous Cardiovascular Procedures with Intraluminal...	23	$119,127	-27%	$25,034
641 Miscellaneous Disorders of Nutrition, Metabolism, Fluids and...	23	$35,148	-5%	$7,057
377 Gastrointestinal Hemorrhage with MCC	22	$74,667	-13%	$16,319
389 Gastrointestinal Obstruction with CC	20	$24,369	-37%	$6,951
480 Hip and Femur Procedures except Major Joint with MCC	20	$103,952	-25%	$25,231
330 Major Small and Large Bowel Procedures with CC	19	$108,504	-9%	$20,419
331 Major Small and Large Bowel Procedures without CC/MCC	19	$98,108	+14%	$14,267
552 Medical Back Problems without MCC	17	$32,613	-33%	$8,410
689 Kidney and Urinary Tract Infections with MCC	17	$41,351	-19%	$10,216
189 Pulmonary Edema and Respiratory Failure	16	$51,034	-11%	$11,209
309 Cardiac Arrhythmia and Conduction Disorders with CC	16	$35,290	-2%	$6,467
419 Laparoscopic Cholecystectomy without C.D.E. without CC/MCC	16	$64,304	-17%	$10,644
682 Renal Failure with MCC	16	$51,059	-23%	$13,039
023 Craniotomy with Major Device Implant or Acute Complex Cns...	15	$235,110	-16%	$48,335
082 Traumatic Stupor and Coma >1 Hour with MCC	15	$77,501	-33%	$19,732
243 Permanent Cardiac Pacemaker Implant with CC	15	$80,733	-27%	$19,400
286 Circulatory Disorders except AMI, with Cardiac...	15	$91,113	-19%	$18,696
308 Cardiac Arrhythmia and Conduction Disorders with MCC	15	$47,123	-17%	$10,398
392 Esophagitis, Gastroenteritis and Miscellaneous Digestive...	15	$27,605	-31%	$6,813
417 Laparoscopic Cholecystectomy without C.D.E. with MCC	15	$83,184	-33%	$23,585
039 Extracranial Procedures without CC/MCC	14	$68,738	+8%	$9,804
281 Acute Myocardial Infarction, Discharged Alive with CC	14	$41,661	-17%	$10,444
329 Major Small and Large Bowel Procedures with MCC	14	$187,750	-13%	$41,400
444 Disorders of The Biliary Tract with MCC	14	$50,927	-39%	$14,259
493 Lower Extremity and Humerus Procedures except Hip, Foot and...	14	$113,545	-5%	$20,806
854 Infectious and Parasitic Diseases with O.R. Procedures with...	14	$42,780	-56%	$16,094
219 Cardiac Valve and Other Major Cardiothoracic Procedures...	13	$396,133	-1%	$73,463
467 Revision of Hip or Knee Replacement with CC	13	$130,309	-17%	$30,860
472 Cervical Spinal Fusion with CC	13	$131,915	-8%	$23,324
482 Hip and Femur Procedures except Major Joint without CC/MCC	13	$66,519	-15%	$13,637
603 Cellulitis without MCC	13	$23,022	-38%	$8,365
698 Other Kidney and Urinary Tract Diagnoses with MCC	13	$47,963	-35%	$17,210
981 Extensive O.R. Procedures Unrelated To Principal Diagnosis...	13	$230,908	+7%	$45,277
254 Other Vascular Procedures without CC/MCC	12	$76,255	-16%	$14,839
270 Other Major Cardiovascular Procedures with MCC	12	$166,198	-36%	$43,342
683 Renal Failure with CC	12	$28,060	-31%	$8,824
690 Kidney and Urinary Tract Infections without MCC	12	$34,342	-9%	$7,094
066 Intracranial Hemorrhage or Cerebral Infarction without...	11	$32,968	-22%	$6,736
184 Major Chest Trauma with CC	11	$45,816	-17%	$9,182

Showing the 60 most frequent of 63 DRGs.

Outpatient services

Service (APC)	Services	Avg charge	Medicare allowed
Comprehensive Observation Services	301	$19,792	$2,754
Level 5 Musculoskeletal Procedures	217	$68,534	$13,288
Level 2 Excision/ Biopsy/ Incision and Drainage	186	$10,031	$1,653
Level 1 Endovascular Procedures	178	$18,914	$3,328
Level 3 Electrophysiologic Procedures	139	$159,512	$24,149
Level 2 Laparoscopy and Related Services	131	$76,077	$10,417
Level 4 Urology and Related Services	122	$21,989	$3,461
Level 1 Laparoscopy and Related Services	117	$39,627	$5,804
Level 5 Urology and Related Services	104	$30,635	$5,275
Level 3 Vascular Procedures	90	$18,914	$3,250
Level 2 Upper GI Procedures	90	$14,116	$1,940
Level 3 Endovascular Procedures	83	$60,732	$11,203
Level 4 Musculoskeletal Procedures	76	$48,276	$7,217
Level 3 Excision/ Biopsy/ Incision and Drainage	68	$22,388	$2,863
Level 3 Urology and Related Services	65	$14,419	$2,077
Level 4 Vascular Procedures	45	$41,339	$5,603
Level 5 ENT Procedures	44	$49,230	$5,971
Level 2 Endovascular Procedures	37	$32,717	$5,827
Level 1 Abdominal/Peritoneal/Biliary and Related Procedures	34	$30,873	$3,527
Level 4 Gynecologic Procedures	34	$17,028	$3,188
Level 3 Pacemaker and Similar Procedures	33	$48,635	$10,875
Level 6 Musculoskeletal Procedures	31	$74,382	$18,956
Level 4 Pacemaker and Similar Procedures	27	$95,210	$19,818
Level 4 Airway Endoscopy	26	$23,568	$3,818
Level 3 Lower GI Procedures	24	$23,801	$2,863

Against the Colorado average

For Septicemia or Severe Sepsis without MV >96 Hours with MCC (DRG 871), Intermountain Health St. Mary's Regional Hospital charged $66,499 on average, 41% less than the Colorado average of $113,091, and was paid $17,200 against a state average of $16,848. For Heart Failure and Shock with MCC (DRG 291), Intermountain Health St. Mary's Regional Hospital charged $49,589 on average, 30% less than the Colorado average of $71,240, and was paid $11,088 against a state average of $11,134. For Percutaneous and Other Intracardiac Procedures without MCC (DRG 274), Intermountain Health St. Mary's Regional Hospital charged $136,505 on average, 25% less than the Colorado average of $182,506, and was paid $27,272 against a state average of $26,546. For Endovascular Cardiac Valve Replacement and Supplement Procedures with MCC (DRG 266), Intermountain Health St. Mary's Regional Hospital charged $250,122 on average, 23% less than the Colorado average of $324,715, and was paid $54,192 against a state average of $51,270. For Comprehensive Observation Services (outpatient APC 8011), its average charge of $19,792 was 42% below the state average of $34,074. For Level 5 Musculoskeletal Procedures (outpatient APC 5115), its average charge of $68,534 was 23% below the state average of $89,547. For Level 2 Excision/ Biopsy/ Incision and Drainage (outpatient APC 5072), its average charge of $10,031 was 28% below the state average of $13,898. For Level 1 Endovascular Procedures (outpatient APC 5191), its average charge of $18,914 was 42% below the state average of $32,669.

Price-transparency record

No action in CMS's price-transparency enforcement list (July 2026) matches this hospital's exact name, city and state. That can mean CMS has not reviewed it, or that it is listed under a different name.

Charges are the hospital's list prices averaged over its 2024 Medicare cases; payments are what those cases actually brought in. Neither is what you will pay. For a planned procedure, ask the hospital for its price estimate or, if you are uninsured or self-paying, a good-faith estimate.

Sources: CMS Medicare Inpatient Hospitals — by Provider and Service / by Geography and Service, data year 2024; CMS Medicare Outpatient Hospitals — by Provider and Service / by Geography and Service, data year 2024; CMS Hospital Price Transparency Enforcement Activities and Outcomes, July 2026. Checked 2026-10-24. Methodology.