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MOUNT AUBURN HOSPITAL

CAMBRIDGE, MA 02138 · Acute Care Hospitals

76 procedures with CMS pricing data · Source: CMS IPPS Provider Summary, FY2024

By BillRazor Research · Last updated March 27, 2026 · Methodology

Procedures Analyzed

76

With CMS pricing data

Avg Charge-to-Medicare Ratio

1.6x

Chargemaster ÷ Medicare

CMS Quality Rating

Patient experience & outcomes

Hospital Type

Acute Care Hospitals

Voluntary non-profit - Private

Above 90th Percentile

0%

Compared to MA hospitals

Understanding Your Costs

When you receive a bill from MOUNT AUBURN HOSPITAL, you are typically seeing the hospital's “chargemaster” rate — its published list price for each service. According to CMS data, MOUNT AUBURN HOSPITAL lists chargemaster rates that average 1.6x the corresponding Medicare reimbursement amount across 76 procedures with publicly available pricing data (Source: CMS IPPS Provider Summary, FY2024).

The median hospital in MA has a chargemaster-to-Medicare ratio of 2.3x, with ratios across the state ranging from 1.2x to 5.6x. At 1.6x, this facility’s average ratio is below the state median. 54 hospitals in MA report pricing data to CMS (Source: CMS IPPS Provider Summary).

The procedure with the largest gap between the listed price and Medicare reimbursement at MOUNT AUBURN HOSPITAL is PERCUTANEOUS CARDIOVASCULAR PROCEDURES WITH INTRALUMINAL DEVICE WITHOUT MCC (DRG 322). The listed chargemaster rate is $54,412, while Medicare reimburses $16,723 for the same procedure — a ratio of 3.3x (Source: CMS IPPS Provider Summary, FY2024).

What does this actually mean for your bill? Chargemaster rates are rarely what patients pay. If you have insurance, your insurer has negotiated a separate rate — often 40–60% less than the listed price. If you are uninsured, you may be able to negotiate directly with the hospital or request financial assistance. The chargemaster-to-Medicare ratio is a useful reference point for understanding listed pricing, but it does not represent what most patients will owe out of pocket.

MOUNT AUBURN HOSPITAL is a voluntary non-profit - private acute care hospitals facility with a CMS quality rating of 4/5 stars. Note: CMS quality ratings measure patient outcomes and experience, not pricing. A hospital with high listed prices may provide excellent care, and pricing data alone should not be used to evaluate the quality of a healthcare provider.

Listed Chargemaster Rates vs Medicare Reimbursement — Top Procedures by Ratio

Listed Chargemaster Rate Medicare Reimbursement

Source: CMS IPPS Provider Summary, FY2024. Chargemaster rates are list prices and may not reflect actual patient costs.

Procedure Pricing Lookup

Search for a specific procedure or DRG code to see listed chargemaster rates and Medicare reimbursement amounts.

ProcedureDRGListed ChargeMedicare Reimb.RatioState Position
PERCUTANEOUS CARDIOVASCULAR PROCEDURES WITH INTRALUMINAL DEVICE WITHOUT MCC322$54,412$16,7233.3x
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PERCUTANEOUS CARDIOVASCULAR PROCEDURES WITH DRUG-ELUTING STENT WITHOUT MCC247$58,292$18,8293.1x
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TRANSIENT ISCHEMIA WITHOUT THROMBOLYTIC069$18,724$6,8452.7x
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DIGESTIVE MALIGNANCY WITH CC375$29,451$11,2372.6x
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PERCUTANEOUS CARDIOVASCULAR PROCEDURES WITH DRUG-ELUTING STENT WITH MCC OR 4+ ARTERIES O246$76,992$30,9692.5x
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CIRCULATORY DISORDERS EXCEPT AMI, WITH CARDIAC CATHETERIZATION WITHOUT MCC287$20,925$9,4072.2x
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ENDOVASCULAR CARDIAC VALVE REPLACEMENT AND SUPPLEMENT PROCEDURES WITHOUT MCC267$109,094$49,7282.2x
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RED BLOOD CELL DISORDERS WITHOUT MCC812$15,815$7,3902.1x
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PERCUTANEOUS AND OTHER INTRACARDIAC PROCEDURES WITHOUT MCC274$63,445$31,1632.0x
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CARDIAC ARRHYTHMIA AND CONDUCTION DISORDERS WITH CC309$13,404$6,7862.0x
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INTRACRANIAL HEMORRHAGE OR CEREBRAL INFARCTION WITH CC OR TPA IN 24 HOURS065$17,339$8,8382.0x
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GASTROINTESTINAL HEMORRHAGE WITH CC378$17,308$8,9161.9x
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GASTROINTESTINAL OBSTRUCTION WITH CC389$12,710$6,8851.9x
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ACUTE MYOCARDIAL INFARCTION, DISCHARGED ALIVE WITH CC281$14,160$7,8191.8x
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RENAL FAILURE WITH CC683$13,371$7,5271.8x
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RESPIRATORY INFECTIONS AND INFLAMMATIONS WITHOUT CC/MCC179$11,464$6,6471.7x
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ESOPHAGITIS, GASTROENTERITIS AND MISCELLANEOUS DIGESTIVE DISORDERS WITHOUT MCC392$11,145$6,5511.7x
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GASTROINTESTINAL HEMORRHAGE WITH MCC377$28,915$17,1371.7x
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CHRONIC OBSTRUCTIVE PULMONARY DISEASE WITH CC191$12,048$7,4281.6x
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PATHOLOGICAL FRACTURES AND MUSCULOSKELETAL AND CONNECTIVE TISSUE MALIGNANCY WITH CC543$15,186$9,5261.6x
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SEPTICEMIA OR SEVERE SEPSIS WITHOUT MV >96 HOURS WITHOUT MCC872$14,437$9,0661.6x
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PERIPHERAL VASCULAR DISORDERS WITH CC300$13,974$8,8581.6x
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PULMONARY EDEMA AND RESPIRATORY FAILURE189$17,413$11,0671.6x
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CHRONIC OBSTRUCTIVE PULMONARY DISEASE WITH MCC190$15,049$9,6411.6x
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SYNCOPE AND COLLAPSE312$10,932$7,0761.6x
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FRACTURES OF HIP AND PELVIS WITHOUT MCC536$9,497$6,2631.5x
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OTHER DIGESTIVE SYSTEM DIAGNOSES WITH CC394$12,584$8,4381.5x
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HIP AND FEMUR PROCEDURES EXCEPT MAJOR JOINT WITH MCC480$38,658$26,1031.5x
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CORONARY BYPASS WITH CARDIAC CATHETERIZATION OR OPEN ABLATION WITHOUT MCC234$70,268$47,5551.5x
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RESPIRATORY INFECTIONS AND INFLAMMATIONS WITH CC178$15,060$10,1901.5x
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MISCELLANEOUS DISORDERS OF NUTRITION, METABOLISM, FLUIDS AND ELECTROLYTES WITHOUT MCC641$9,449$6,3741.5x
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ALCOHOL, DRUG ABUSE OR DEPENDENCE WITHOUT REHABILITATION THERAPY WITHOUT MCC897$10,998$7,5121.5x
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ALCOHOL, DRUG ABUSE OR DEPENDENCE WITHOUT REHABILITATION THERAPY WITH MCC896$21,213$14,7641.4x
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CIRCULATORY DISORDERS EXCEPT AMI, WITH CARDIAC CATHETERIZATION WITH MCC286$28,480$19,7821.4x
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RED BLOOD CELL DISORDERS WITH MCC811$17,869$12,5261.4x
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SIMPLE PNEUMONIA AND PLEURISY WITH CC194$10,035$7,0071.4x
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SIMPLE PNEUMONIA AND PLEURISY WITHOUT CC/MCC195$7,307$5,1521.4x
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SEPTICEMIA OR SEVERE SEPSIS WITHOUT MV >96 HOURS WITH MCC871$25,314$17,8651.4x
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DIABETES WITH CC638$10,530$7,4371.4x
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MAJOR HIP AND KNEE JOINT REPLACEMENT OR REATTACHMENT OF LOWER EXTREMITY WITHOUT MCC470$23,737$16,8781.4x
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BRONCHITIS AND ASTHMA WITH CC/MCC202$11,325$8,0921.4x
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CELLULITIS WITHOUT MCC603$10,526$7,5451.4x
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INFECTIOUS AND PARASITIC DISEASES WITH O.R. PROCEDURES WITH MCC853$65,403$46,6651.4x
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SEIZURES WITHOUT MCC101$11,054$7,8841.4x
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SIMPLE PNEUMONIA AND PLEURISY WITH MCC193$16,085$11,5251.4x
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KIDNEY AND URINARY TRACT INFECTIONS WITHOUT MCC690$10,028$7,1561.4x
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DYSEQUILIBRIUM149$8,603$6,1361.4x
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HEART FAILURE AND SHOCK WITH MCC291$15,740$11,2881.4x
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RESPIRATORY SYSTEM DIAGNOSIS WITH VENTILATOR SUPPORT <=96 HOURS208$35,695$25,7691.4x
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BONE DISEASES AND ARTHROPATHIES WITHOUT MCC554$10,203$7,3601.4x
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Showing 50 of 76 procedures

All data from CMS IPPS Provider Summary, FY2024. Chargemaster rates are list prices and may not reflect actual patient costs.

Statewide Context

Charge-to-Medicare ratio range across MA hospitals

1.2x
Median: 2.3x
5.6x
1.6x

54 hospitals in MA report pricing data to CMS. This facility's average ratio of 1.6x places it at the lower end of the state range (Source: CMS IPPS Provider Summary).

What You Can Do

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Learn how

Check for Common Errors

Research suggests 49-80% of hospital bills contain errors — from duplicate charges to incorrect procedure codes.

How it works

Data: CMS Inpatient Prospective Payment System (IPPS) Provider Summary, FY2024. All data is publicly available under federal law (45 CFR Part 180).

Important: Listed chargemaster rates are not what most insured patients pay. Actual costs depend on your insurance plan's negotiated rates, deductibles, and coverage terms. This information is for educational purposes only and does not constitute medical, legal, or financial advice.

Read our methodology·Report a data error

Frequently Asked Questions About MOUNT AUBURN HOSPITAL

How much does MOUNT AUBURN HOSPITAL charge compared to Medicare?

According to CMS IPPS data, MOUNT AUBURN HOSPITAL's listed chargemaster rates average 1.6x the Medicare reimbursement amount across 76 procedures. Chargemaster rates are list prices and are not what most insured patients pay — actual costs depend on insurance negotiations and coverage terms.

What is the most expensive procedure at MOUNT AUBURN HOSPITAL?

The procedure with the highest chargemaster-to-Medicare ratio at MOUNT AUBURN HOSPITAL is PERCUTANEOUS CARDIOVASCULAR PROCEDURES WITH INTRALUMINAL DEVICE WITHOUT MCC (DRG 322), with a listed charge of $54,412 compared to Medicare reimbursement of $16,723 — a ratio of 3.3x. Source: CMS IPPS Provider Summary.

Is MOUNT AUBURN HOSPITAL expensive compared to other MA hospitals?

MOUNT AUBURN HOSPITAL's average chargemaster-to-Medicare ratio is 1.6x. Ratios vary significantly across MA hospitals. This ratio reflects listed chargemaster prices, not what patients actually pay. CMS quality ratings, which measure patient outcomes and experience, are separate from pricing data.

Where does the pricing data for MOUNT AUBURN HOSPITAL come from?

All pricing data comes from the Centers for Medicare & Medicaid Services (CMS) Inpatient Prospective Payment System (IPPS) Provider Summary, published under federal price transparency law (45 CFR Part 180). This data is publicly available and updated annually.

How can I check if my bill from MOUNT AUBURN HOSPITAL is correct?

You can upload your bill to BillRazor for a free comparison against publicly available Medicare reimbursement data. Our system analyzes every line item in 60 seconds. Research suggests 49-80% of hospital bills contain errors, including duplicate charges, incorrect procedure codes, and unbundling.

Does MOUNT AUBURN HOSPITAL in CAMBRIDGE, MA accept Medicare?

MOUNT AUBURN HOSPITAL is included in the CMS IPPS Provider Summary, which covers Medicare-participating hospitals. For specific coverage questions, contact MOUNT AUBURN HOSPITAL directly or check with your insurance provider.

Data sourced from CMS IPPS Provider Summary, FY2024. All information is for educational purposes only.