Cut a hospital bill using Claude's Medicare price analysis
Matt Rosenberg, a NY-based marketing consultant, asked Claude to analyze a $195,000 hospital bill. Task: Matt Rosenberg, a NY-based marketing consultant, asked Claude to analyze a $195,000 hospital bill. Claude helped him navigate complex billing codes and compare the charges to Medicare prices. He negotiated a $163,000 discount with the hospital and says AI is changing the power patients have. The hospital bill arrived a month after the cremation. Eight lines of vague descriptions — cardiology, pharmacy, medical supplies — each with a dollar amount, many in five figures. The American health system's casual itemization of grief. My 62-year-old brother-in-law had suffered a massive heart attack in June 2025 after running a 5K, barely an effort for a lifelong triathlete on most days, but this day, the trigger for a life-ending coronary. Telling his wife he was having difficulty breathing, he was rushed first to urgent care and then to the ER at Community Memorial Hospital in Ventura, CA. Six weeks later, the bill for the hospital's four hours of failed effort trying to save him: $195,628. My sister-in-law's first instinct was to pay it. The life insurance would more than cover it. I told her to wait — to email me everything and sign nothing until we understood what we were looking at. The American healthcare system counts on people in grief making quick decisions. We weren't going to be those people. My brother-in-law hadn't been uninsured by circumstance but by miscalculation — he'd let his policy lapse while shopping for something cheaper. When you regularly bike 10 miles before breakfast, re-upping health insurance feels less urgent than it should. The heart attack had come before he'd set up a new policy.First, I had to learn a new language The first lesson in medical billing is that hospitals speak in tongues. That initial bill was too vague — categories rather than procedures. When I requested an itemized version, what arrived was a longer list of internal codes with prices — codes that existed only within the hospital's accounting system, opaque as an inside joke. As a former ad agency guy, I've been trained in negotiation. The first task is to define the playing field, a reasonable starting point in response to their $195K gambit. My strategy was to figure out what an insurer would've paid for identical services. Medicare is the country's largest healthcare payer, so I'd start there. After two requests via phone, the hospital sent a UB-04 form — the same coded document they'd submit to Medicare or Blue Cross. I prepared to do what seemed straightforward: look up Medicare payments for each code, create a spreadsheet, and build our negotiating position on the radical proposition that the uninsured shouldn't pay more than the insured.I was too lazy to Google it all, so… There were a lot of codes. I took a shortcut and went to my AI assistant, Anthropic's Claude, which I typically use for research and to understand how AI intersects with our lives, for good or ill. "Make a spreadsheet with these CPT codes and research what Medicare pays for each one," I typed. "Flag anything that needs further research." Claude responded with questions: Which insurance type? Which geographic location? Which year? I'd thought Medicare rates were just Medicare rates. Lesson no. 2.Their price was not right Within a couple of minutes, Claude produced a spreadsheet. But it showed zeros for many of the codes instead of the dollar amounts I expected. In the notes column for these, it said, "See 92941RC, C-APC comprehensive payment." Code 92941RC was a cardiac intervention priced at $30,767. I asked Claude to explain. Claude responded with the flat precision of a tax attorney: Medicare doesn't pay à la carte for complex procedures. When doctors place a cardiac stent, Medicare makes one bundled payment covering everything — the procedure, the catheters, the guide wires, the contrast dye. It's called a Comprehensive Ambulatory Payment Classification, designed to prevent exactly the kind of bill I was looking at. Advertisement The hospital had unbundled the procedure. After charging $30,767 for the main intervention, they'd added separate lines for catheters (around $20,000), guide wires ($3,565), and medical supplies ($77,400) — over $100,000 for items Medicare would've paid nothing for because they're already included. (A gift with purchase!) It was as if a restaurant charged you for the pizza, then added separate charges for the dough, the sauce, and each pepperoni.; tools: Claude. Human role: The original post does not say how a person stayed involved.; limitations: AI models may hallucinate billing codes or rates; independent verification via ChatGPT and manual research was required. This workflow assumes access to itemized UB-04 forms, which hospitals may delay providing. Legal advice is not replaced; the author explicitly notes AI should not be used as a lawyer. Outcomes vary by hospital policy and jurisdiction..
Tools
Published on Agent Work Atlas:
Overview
Matt Rosenberg, a NY-based marketing consultant, asked Claude to analyze a $195,000 hospital bill.
Workflow
Matt Rosenberg, a NY-based marketing consultant, asked Claude to analyze a $195,000 hospital bill. Claude helped him navigate complex billing codes and compare the charges to Medicare prices. He negotiated a $163,000 discount with the hospital and says AI is changing the power patients have. The hospital bill arrived a month after the cremation. Eight lines of vague descriptions — cardiology, pharmacy, medical supplies — each with a dollar amount, many in five figures. The American health system's casual itemization of grief. My 62-year-old brother-in-law had suffered a massive heart attack in June 2025 after running a 5K, barely an effort for a lifelong triathlete on most days, but this day, the trigger for a life-ending coronary. Telling his wife he was having difficulty breathing, he was rushed first to urgent care and then to the ER at Community Memorial Hospital in Ventura, CA. Six weeks later, the bill for the hospital's four hours of failed effort trying to save him: $195,628. My sister-in-law's first instinct was to pay it. The life insurance would more than cover it. I told her to wait — to email me everything and sign nothing until we understood what we were looking at. The American healthcare system counts on people in grief making quick decisions. We weren't going to be those people. My brother-in-law hadn't been uninsured by circumstance but by miscalculation — he'd let his policy lapse while shopping for something cheaper. When you regularly bike 10 miles before breakfast, re-upping health insurance feels less urgent than it should. The heart attack had come before he'd set up a new policy.First, I had to learn a new language The first lesson in medical billing is that hospitals speak in tongues. That initial bill was too vague — categories rather than procedures. When I requested an itemized version, what arrived was a longer list of internal codes with prices — codes that existed only within the hospital's accounting system, opaque as an inside joke. As a former ad agency guy, I've been trained in negotiation. The first task is to define the playing field, a reasonable starting point in response to their $195K gambit. My strategy was to figure out what an insurer would've paid for identical services. Medicare is the country's largest healthcare payer, so I'd start there. After two requests via phone, the hospital sent a UB-04 form — the same coded document they'd submit to Medicare or Blue Cross. I prepared to do what seemed straightforward: look up Medicare payments for each code, create a spreadsheet, and build our negotiating position on the radical proposition that the uninsured shouldn't pay more than the insured.I was too lazy to Google it all, so… There were a lot of codes. I took a shortcut and went to my AI assistant, Anthropic's Claude, which I typically use for research and to understand how AI intersects with our lives, for good or ill. "Make a spreadsheet with these CPT codes and research what Medicare pays for each one," I typed. "Flag anything that needs further research." Claude responded with questions: Which insurance type? Which geographic location? Which year? I'd thought Medicare rates were just Medicare rates. Lesson no. 2.Their price was not right Within a couple of minutes, Claude produced a spreadsheet. But it showed zeros for many of the codes instead of the dollar amounts I expected. In the notes column for these, it said, "See 92941RC, C-APC comprehensive payment." Code 92941RC was a cardiac intervention priced at $30,767. I asked Claude to explain. Claude responded with the flat precision of a tax attorney: Medicare doesn't pay à la carte for complex procedures. When doctors place a cardiac stent, Medicare makes one bundled payment covering everything — the procedure, the catheters, the guide wires, the contrast dye. It's called a Comprehensive Ambulatory Payment Classification, designed to prevent exactly the kind of bill I was looking at. Advertisement The hospital had unbundled the procedure. After charging $30,767 for the main intervention, they'd added separate lines for catheters (around $20,000), guide wires ($3,565), and medical supplies ($77,400) — over $100,000 for items Medicare would've paid nothing for because they're already included. (A gift with purchase!) It was as if a restaurant charged you for the pizza, then added separate charges for the dough, the sauce, and each pepperoni.
Reported result
The analysis revealed Medicare would have paid approximately $28,675 versus the billed $195,628. The hospital countered at $36,356, and the parties settled at roughly $32,500, resulting in a claimed $163,000 discount. Success depended on the author's prior negotiation experience and the specific hospital's willingness to settle without litigation. No independent audit confirmed the final settlement terms beyond the author's account.
Human role
The original post does not say how a person stayed involved.
Limitations
AI models may hallucinate billing codes or rates; independent verification via ChatGPT and manual research was required. This workflow assumes access to itemized UB-04 forms, which hospitals may delay providing. Legal advice is not replaced; the author explicitly notes AI should not be used as a lawyer. Outcomes vary by hospital policy and jurisdiction.
Try it
Act as a medical billing analyst. I have a hospital bill of [replaceable input: total amount] and an itemized UB-04 form with CPT codes [replaceable input: list of codes or file path]. The patient is uninsured in [replaceable input: state/region]. 1. Create a spreadsheet mapping each CPT code to its Medicare reimbursement rate for [replaceable input: year]. Flag codes that are bundled into other procedures (e.g., C-APC) or are mutually exclusive. 2. Identify potential billing errors such as unbundling, inpatient charges on outpatient claims, or duplicate services. 3. Draft a summary of discrepancies comparing the billed amount to the estimated Medicare allowable amount. 4. Generate a draft negotiation letter citing specific billing rules violated. Before sending any communication, I will review the spreadsheet and letter for accuracy. Do not send emails or make calls. Output the spreadsheet data and letter draft for my approval.
Source reports are not independently verified. Publication date is the catalog publication date, not the original article date.