Trinity Health Ann Arbor Hospital: charges and Medicare payments

Trinity Health Ann Arbor Hospital reported 6,355 Medicare inpatient stays across 175 DRGs in 2024. Across them it charged 3.28 times what it was paid — mid-range in Michigan, number 30 of 76 hospitals with at least 100 stays (state median 3.09×, national 4.15×). Its most frequent stay was DRG 871, Septicemia or Severe Sepsis without MV >96 Hours with MCC: 444 stays at an average charge of $53,594, 41% below the national average. It also billed 4,290 outpatient services, charging 5.82 times what Medicare paid.

1Medicare inpatient stays 6,355
2Charge ÷ paid, inpatient 3.28×
3Rank in MI (highest ratio = 1) 30 of 76
4CMS price-transparency actions 0

Average charge per stay at Trinity Health Ann Arbor Hospital, its 10 most frequent DRGs, bars to scale. Source: CMS DY2024.

Inpatient stays

For the 175 DRGs that can be compared with the national average, Trinity Health Ann Arbor Hospital charged more than the national average in 0 (0%). 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	444	$53,594	-41%	$17,170
291 Heart Failure and Shock with MCC	342	$34,490	-39%	$11,945
470 Major Hip and Knee Joint Replacement or Reattachment of...	249	$56,681	-39%	$16,262
193 Simple Pneumonia and Pleurisy with MCC	147	$37,226	-38%	$11,512
392 Esophagitis, Gastroenteritis and Miscellaneous Digestive...	138	$24,955	-38%	$7,193
177 Respiratory Infections and Inflammations with MCC	126	$43,743	-38%	$14,296
189 Pulmonary Edema and Respiratory Failure	109	$38,716	-33%	$11,704
690 Kidney and Urinary Tract Infections without MCC	105	$22,627	-40%	$6,836
689 Kidney and Urinary Tract Infections with MCC	95	$33,554	-35%	$9,707
312 Syncope and Collapse	91	$26,238	-42%	$7,530
552 Medical Back Problems without MCC	89	$31,495	-36%	$8,602
065 Intracranial Hemorrhage or Cerebral Infarction with CC or...	83	$36,637	-34%	$9,706
603 Cellulitis without MCC	78	$19,595	-47%	$7,400
641 Miscellaneous Disorders of Nutrition, Metabolism, Fluids and...	78	$25,600	-31%	$6,877
853 Infectious and Parasitic Diseases with O.R. Procedures with...	76	$123,377	-46%	$39,768
378 Gastrointestinal Hemorrhage with CC	75	$29,114	-40%	$9,107
309 Cardiac Arrhythmia and Conduction Disorders with CC	73	$24,732	-32%	$7,070
190 Chronic Obstructive Pulmonary Disease with MCC	72	$35,644	-30%	$9,528
640 Miscellaneous Disorders of Nutrition, Metabolism, Fluids and...	72	$41,496	-31%	$11,392
280 Acute Myocardial Infarction, Discharged Alive with MCC	68	$45,098	-41%	$13,720
683 Renal Failure with CC	67	$22,066	-46%	$7,587
330 Major Small and Large Bowel Procedures with CC	65	$82,947	-30%	$19,215
274 Percutaneous and Other Intracardiac Procedures without MCC	64	$84,708	-46%	$26,177
321 Percutaneous Cardiovascular Procedures with Intraluminal...	63	$113,443	-31%	$26,399
872 Septicemia or Severe Sepsis without MV >96 Hours without MCC	61	$32,705	-33%	$9,114
194 Simple Pneumonia and Pleurisy with CC	59	$24,427	-36%	$7,180
322 Percutaneous Cardiovascular Procedures with Intraluminal...	56	$75,488	-34%	$17,870
391 Esophagitis, Gastroenteritis and Miscellaneous Digestive...	56	$31,048	-49%	$11,479
266 Endovascular Cardiac Valve Replacement and Supplement...	53	$165,237	-42%	$52,758
267 Endovascular Cardiac Valve Replacement and Supplement...	52	$127,595	-42%	$40,836
481 Hip and Femur Procedures except Major Joint with CC	52	$74,778	-26%	$16,852
286 Circulatory Disorders except AMI, with Cardiac...	49	$51,776	-54%	$20,673
698 Other Kidney and Urinary Tract Diagnoses with MCC	48	$34,692	-53%	$13,560
178 Respiratory Infections and Inflammations with CC	47	$28,217	-38%	$8,681
064 Intracranial Hemorrhage or Cerebral Infarction with MCC	45	$69,228	-31%	$16,906
897 Alcohol, Drug Abuse or Dependence without Rehabilitation...	44	$20,858	-44%	$7,286
069 Transient Ischemia without Thrombolytic	43	$30,981	-39%	$7,018
329 Major Small and Large Bowel Procedures with MCC	43	$160,295	-25%	$43,279
638 Diabetes with CC	42	$29,338	-30%	$8,459
101 Seizures without MCC	40	$26,022	-47%	$7,798
191 Chronic Obstructive Pulmonary Disease with CC	40	$26,205	-34%	$7,434
389 Gastrointestinal Obstruction with CC	40	$24,596	-37%	$7,375
682 Renal Failure with MCC	40	$58,244	-12%	$12,257
948 Signs and Symptoms without MCC	40	$21,752	-43%	$6,748
308 Cardiac Arrhythmia and Conduction Disorders with MCC	39	$35,031	-38%	$10,703
394 Other Digestive System Diagnoses with CC	39	$28,264	-40%	$9,001
563 Fracture, Sprain, Strain and Dislocation except Femur, Hip,...	38	$28,342	-33%	$7,685
812 Red Blood Cell Disorders without MCC	38	$21,709	-51%	$8,110
220 Cardiac Valve and Other Major Cardiothoracic Procedures...	35	$157,473	-43%	$49,066
483 Major Joint or Limb Reattachment Procedures of Upper...	34	$63,899	-49%	$22,158
057 Degenerative Nervous System Disorders without MCC	33	$31,462	-44%	$11,600
253 Other Vascular Procedures with CC	33	$79,964	-39%	$22,664
377 Gastrointestinal Hemorrhage with MCC	33	$47,276	-45%	$15,944
175 Pulmonary Embolism with MCC or Acute Cor Pulmonale	32	$34,351	-47%	$13,330
331 Major Small and Large Bowel Procedures without CC/MCC	32	$65,098	-24%	$15,083
522 Hip Replacement with Principal Diagnosis of Hip Fracture...	31	$78,566	-23%	$17,982
184 Major Chest Trauma with CC	30	$33,598	-39%	$9,222
243 Permanent Cardiac Pacemaker Implant with CC	29	$63,733	-43%	$20,427
313 Chest Pain	29	$23,270	-42%	$6,144
617 Amputation of Lower Limb for Endocrine, Nutritional and...	29	$51,846	-40%	$17,499

Showing the 60 most frequent of 175 DRGs.

Outpatient services

Service (APC)	Services	Avg charge	Medicare allowed
Comprehensive Observation Services	596	$12,859	$2,429
Level 2 Excision/ Biopsy/ Incision and Drainage	325	$5,836	$1,484
Level 2 Upper GI Procedures	244	$8,955	$1,744
Level 3 Electrophysiologic Procedures	213	$96,364	$21,570
Level 1 Endovascular Procedures	200	$21,041	$2,998
Level 1 Nerve Procedures	198	$10,172	$1,757
Level 5 Musculoskeletal Procedures	170	$52,814	$11,866
Level 3 Vascular Procedures	161	$11,616	$2,921
Level 4 Urology and Related Services	132	$21,793	$3,169
Level 4 Musculoskeletal Procedures	128	$37,930	$6,537
Level 1 Laparoscopy and Related Services	126	$39,047	$5,338
Level 5 Urology and Related Services	125	$30,234	$4,702
Level 3 Urology and Related Services	113	$13,687	$1,876
Level 3 Musculoskeletal Procedures	97	$25,162	$2,690
Level 2 Musculoskeletal Procedures	91	$14,351	$1,477
Level 3 Excision/ Biopsy/ Incision and Drainage	88	$12,461	$2,572
Level 3 Endovascular Procedures	79	$46,302	$10,060
Level 2 Urology and Related Services	77	$2,946	$632
Level 4 Airway Endoscopy	76	$18,582	$3,464
Level 6 Musculoskeletal Procedures	75	$61,213	$17,202
Level 4 Vascular Procedures	69	$23,599	$3,709
Level 3 Lower GI Procedures	64	$11,994	$2,565
Level 2 Pacemaker and Similar Procedures	56	$22,281	$7,859
Level 2 Intraocular Procedures	56	$27,020	$3,667
Level 1 Abdominal/Peritoneal/Biliary and Related Procedures	55	$19,358	$3,200

Against the Michigan average

For Septicemia or Severe Sepsis without MV >96 Hours with MCC (DRG 871), Trinity Health Ann Arbor Hospital charged $53,594 on average, 1% less than the Michigan average of $54,260, and was paid $17,170 against a state average of $17,096. For Heart Failure and Shock with MCC (DRG 291), Trinity Health Ann Arbor Hospital charged $34,490 on average, 4% less than the Michigan average of $35,827, and was paid $11,945 against a state average of $11,565. For Major Hip and Knee Joint Replacement or Reattachment of Lower Extremity without MCC (DRG 470), Trinity Health Ann Arbor Hospital charged $56,681 on average, 10% less than the Michigan average of $63,082, and was paid $16,262 against a state average of $16,226. For Simple Pneumonia and Pleurisy with MCC (DRG 193), Trinity Health Ann Arbor Hospital charged $37,226 on average, 4% more than the Michigan average of $35,850, and was paid $11,512 against a state average of $11,562. For Comprehensive Observation Services (outpatient APC 8011), its average charge of $12,859 was 16% below the state average of $15,355. For Level 2 Excision/ Biopsy/ Incision and Drainage (outpatient APC 5072), its average charge of $5,836 was 21% below the state average of $7,344. For Level 2 Upper GI Procedures (outpatient APC 5302), its average charge of $8,955 was 3% above the state average of $8,683. For Level 3 Electrophysiologic Procedures (outpatient APC 5213), its average charge of $96,364 was 5% below the state average of $101,887.

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.