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> nearly half of medical spending

> something like 2 FTEs focusing just on the reimbursements from Medicare and Medicaid

2FTE’s vs what?

The question isn’t is this free, the question is how large is the total staff including price negotiations, doctors, and IT time spent handling billing issues, and is Medicare more or less than 50% of the total.

I am ware of one hospital and 2 medical clinics where the difference is very much in favor of Medicare.

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2 FTEs vs a department. Most hospitals have entire departments to handle insurer coding and some even have departments just to handle insurer disputes.
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to handle insurer coding

Coding is a different layer. Everything needs coding, whether for gov't or commercial payers. So the folks doing this coding can't be separated out for commercial. In fact, it's kind of the opposite:

CPT codes (for procedures) - these are defined by AMA, but mandated by CMS (i.e., Medicare/caid). Because the gov't mandated them, the commercial payers adopted them too.

HCPCS codes (equipment and supplies) - defined by CMS.

ICD-10-PCS codes (hospital inpatient stuff) - defined by CMS.

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2FTE’s vs what?

versus nothing. Hospitals don't have to maintain a whole team for UnitedHealth, or for Anthem, etc.

This is my point. Medicare cooks the books to look more efficient by offloading their administrative costs onto providers. Other payers can't do that because, even if huge, they don't operate at the same scale.

Think about it: we often hear on the news about disputes about contracts when a local hospital's agreement with some insurance company comes up for renewal. They play hardball, getting local news to run stories on how many people will be affected if they can't come to terms. But you'll never hear this in the context of Medicare/caid. Hospitals have leverage to negotiate with commercial payers, but not with the government.

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Depending on the size of the health system it may not be a team of multiple FTEs but they absolutely do expend significant resources on managing differences between commercial payers. They all have different rules about covered services, step therapy, prior authorization, hospital admission, etc. Sometimes those differ significantly even between health plans offered by a single carrier.
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Many providers report that dealing with Medicare has clear rules they can follow while dealing with private payers causes a huge burden.
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This isn't really true anymore (if it was ever true). Providers are spending a huge amount of time dealing with prior authorizations and appeals for private insurance.

I work in this area and you're right that Medicare can require a huge amount of paperwork from providers. And a hospital will have far more than 2 FTEs for this (it's called Revenue Cycle Management).

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Medicare has overhead, but you’re not saying whether it is more than commercial insurance. The admin expense/profit portion of commercial insurers also don’t take into account provider admin costs (not to mention the huge amount of time patients can deal with denials, appeals, etc.)
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It's further the case, regarding Medicare expense ratios, that their admin costs are low relative to private insurance because the median private insurance customer incurs far lower medical costs, leaving admin as a higher fraction.
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