Insurance premiums for Medicare and Medigap policies are described in 9 pages on SeekingAlpha.

Community Health Centers get federal grants and often have lower costs than average.

The Wall Street Journal has a good free guide to looking for health care costs, no matter if you pay with Medicare, other insurance, or cash. Finding costs before you get treatment is hard. Dr. David Belk explains about the confusing cost of office visits, including higher pay from HMOs than from fee-for-service. The Atlantic describes 2019 laws and practices of debt collection for unpaid hospital bills.

Each patient's cost depends on his or her insurance.

• Insurance companies negotiate costs, and patients pay this up to their deductible or copay.
  
• A 2020 HCCI survey lists (a) average cost paid by private insurance, (b) average cost that would have been paid by Medicare, (c) numbers of patients and providers. These are in 2 spreadsheets: (1) summary for each state and metro area, (2) detail for each type of office visit or injection for each state and major metro area. Summary citing previous studies and methods.
  
• A 2019 RAND survey lists 1,600 hospitals and the average prices negotiated by insurers for inpatient and outpatient care, as multiples of Medicare prices (averaging 2-10 times as high for outpatient care, 2-4 times as high for inpatients): xlsx list of 1,600 hospitals, pdf summary, AHA comment.
  
• For people without insurance, the Medicare level for each service, and the private insurers' averages, are starting points for negotiation.
• In order to know total costs, patients can ask the doctor's office whether an anesthesiologist, assistant surgeon or hospital fee will be needed.
• Anesthesiologist fees are in the Specialists tab above.

Doctors' fees under Medicare are in the Specialists tab above. They show what Medicare pays, and the list price for each procedure from each provider. Medicare costs include the total paid by Medicare, supplemental insurance and patients.

Hospital fees for the most common 100 diagnoses are in hospital spreadsheets from Medicare, and are mapped nicely at ClearHealthCosts. 

For example the data files show that surgeon costs for knee replacement are typically around $1,500, assistant surgeon $300, anesthesiologist $200, and hospital costs (for "major joint replacement or reattachment of lower extremity") averaged $14,000 if there were no major comorbidities and complications (MCC), or $23,000 if there were.

For a few procedures (primarily imaging, tests, counseling, dental extractions or implants, cosmetic procedures), ZendyHealth gives (free) a range of local prices within a radius you choose. They offer you a doctor based on how much you want to pay ($49 referral fee). You cannot use insurance with the doctor, but Zendy helps you submit a claim to your insurance company, so your cost counts against the deductible. For these and other procedures they offer a free consultation. You have to pay their legal bills if there's a problem ("indemnify"), and accept arbitration. You have no choice of provider, and see the name assigned to you only after you have paid the referral fee. For example different MRI centers have different strength magnets, and you are likely to get the cheapest, weakest magnets, which give less precise images. If you have time to search the Specialists tab above, you can find the lowest price providers and negotiate directly.

Costs for treatments in North Carolina are available from Blue Cross/Blue Shield of North Carolina, based on their patients and their contracts with providers: bcbsnc.com/content/providersearch/treatments. These have actual costs for a treatment episode, including hospital and doctors. Very easy to access. The free system compares all providers within any radius of a zip code, up to the whole state. You can sort by cost, name or distance. However there are only 1,200 procedures, no info on how often each doctor does the procedure, voluminous output with typically 3 providers per screen, not downloadable, only North Carolina, no procedure codes, so it is hard to be sure what each item covers,  no lab costs or drug costs. Their data come from one year, but they don't say which year.

Doctors' incomes derive from the payments above and the volume each doctor does. Average incomes (after expenses)  by specialty range from $200,000 per year for Public Health and Pediatrics to $500,000 for Plastic Surgery and Orthopedics, with wide variation. Concierge (2% of doctors) and cash-only (5%) doctors earn slightly more than average, comparable to other self-employed doctors. 13% are direct primary care doctors, generally subscription-based but lower fees than concierge. Three quarters do not charge for no-shows, whatever their policies may say. 70% see patients for 45 hours per week or less, but they spend 10 hours or more on paperwork and administration.  A fifth to a quarter of most specialties would not choose medicine again if they had the chance. Wealth averages $1-2 million, depending on specialty and age. A quarter of doctors have over $1 million by the time they are 35, and two thirds do by the time they are 50.

​Most doctors at hospitals work for large groups (TeamHealth, Schumacher) which contract to provide hospitalists, radiologists, emergency doctors, etc. Some companies provide doctors to hundreds of hospitals (Envision + Amsurg). Hospital doctors earn $200,000 - $400,000 per year. About half feel fairly compensated. Only a quarter "regularly" discuss the cost of treatment with patients. Over three quarters would choose medicine again and the same specialty.

Doctors identified 25 procedures and tests which may be wasteful, since they usually have low value for patients. They were given to 25% to 42% of Medicare beneficiaries each year, depending on definitions, but they only cost 0.6% to 2.7% of total Medicare costs.

In the United States, 

• 13% of medical spending goes on people who die within a year Mt.Sinai
• 25% of Medicare spending goes on people who die within a year NBER

This is because most Medicare spending goes on sick people (!), especially very sick people (!!), and some die unexpectedly (!). However very little spending goes on those who are likely to die soon.

• 5% of Medicare spending goes on people likely to die within a year (50% or more chance) NBER
• About half the people with high costs got better after an expensive treatment: heart attack, cancer treatment, etc. Mt.Sinai
• About 40% of the people with high costs have chronic conditions, and death is unpredictable Mt.Sinai
• "[R]eliably predict who will die and therefore would not benefit from receiving intensive care... turns out to be extremely hard to do. In a recent article in Science, researchers used a sophisticated machine-learning prediction tool to identify patients who are most likely to die, and found that there is no group of people for whom death is easily predictable." The Science article supplement table S2 shows that only 1% of Medicare enrollees had more than 50-50 chance of death within a year (46.6%-53.4% chance). So half of these did die, representing 0.5% of Medicare enrollees. The average death rate among the other 99% of enrollees was 4.6%, representing 4.5% of enrollees. So a total of 5% died, and most would not be predicted to die within a year. Similar data for hospitalized Medicare patients are in table S5.

Vox quotes economists that the US health care prices per item are abnormally high. So other countries get more health care for less cost:
"When you’re paying the highest prices in the world for basic services, for scans and drugs, it will undoubtedly be a struggle to provide all citizens with health care...

• Americans go to the doctor four times each year.
• Dutch people go to the doctor, on average, eight times each year.
• Germans make 9.9 annual doctor trips.
• Japanese residents clock in an impressive 12.8 doctor visits each year — more than three times the frequency of their American counterparts...

When Americans do go to the doctor, we tend to have less face time or interaction with our providers.

• The average hospital stay, for example, is 5.4 days in the United States.
• This puts us roughly in line with New Zealand and Norway (5.2- and 5.8-day averages, respectively) and with much shorter stays than Canadians (7.5 days) or Germans (7.8 days).

The real culprit in the United States is not that we go to the doctor too much. The culprit is that whenever we do go to the doctor, we pay an extraordinary amount."

A 2018 JAMA article compares insurance systems, and a 2008 JAMA article shows the same cost issues in 2004-6, with US doctors' salaries double the level in other countries.

​DailyKos has more detail on the range of costs.

• "America’s economic competitors discovered years ago and still share today... Whether negotiated directly or through a national association of insurers, the government sets the prices for prescription drugs, tests, treatments, hospital stays, and pretty much everything else...
• Economics, after all, is the study of the allocation of scarce resources... In the face of the infinite “wants” for healthy citizens, financially secure families, well-compensated practitioners, and strong profits for private companies of all stripes, societies must choose how and why to distribute discomfort and dissatisfaction to some or all of the constituents."

​​And DailyKos quotes the Commonwealth Fund comparisons:

 Related Topics:
Hospitals' Financial Data
Medicare Payment Formula for Hospitals

Patients' premiums depend on income and what coverage they want.

The government pays a lot for people at all income levels. Medicare Part B (doctors) and Part D (drugs), are not paid by the payroll tax, and are paid by premiums and government aid. (Part A, hospitals, is paid by the payroll tax.) Currently the Part B premium is $105 per month per person, and the cost is 4 times as much, $420 per month, so taxpayers pay a 75% subsidy. Premiums go up with income and subsidy is reduced, in several bands of income, but even the highest income participants get 20% subsidy.

The current premium is about 2% of income (red line above). It is

• 1.5% to 2.5% of income between $101,000-$537,000 for couples
• 1.5% to 2.5% of income between $50,000-$270,000 for individuals.

People below that pay more; people at the top pay less (in percentage). The advantage of bands is that premiums generally do not change for small changes of income, simplifying administration a little.

The Bipartisan Policy Center recommends starting bands at lower incomes (p.59 of full report), which result in higher premiums (and lower subsidies - green dashes above):

• 2.3% to 4.1% of income between $62,000-$349,000 for couples
• 1.7% to 3.1% of income between $41,000-$233,000 for individuals

People below that pay more; people at the top pay less. The plan would raise $6 billion per year.

Kaiser summarizes a variety of 2014 Budget proposals involving 15% increases in the premiums paid by high income participants, starting the first band lower, and slowly lowering all bands by not adjusting for inflation for several years (red dots above). Premiums would be:

• 1.6% to 2.7% of income between $93,000-$576,000 for couples
• 1.6% to 2.7% of income between $47,000-$288,000 for individuals
  

People below that pay more; people at the top pay less.

A Tucson blogger recommends charging 5% of income, up to the full cost (purple line above). Dots show bands of income, where people pay

• 4.25% to 5.75% of income between $44,000-$237,000 for couples
  
• 4.25% to 5.75% of income between $22,000-$118,000 for individuals
  

People below that pay more; people at the top pay less. She does not estimate the savings. A spreadsheet here estimates the savings from this proposal at $19 billion per year, using IRS counts of people by income, and consistent assumptions.

This option charges low income people the current $105, since Medicaid already pays the premium for most of them. Dropping the premium to 5% for low income people would cost Medicare more, but save an equivalent amount in Medicaid assistance, so the $19 billion overall savings would remain. It is far more than the $1.5 billion saved by the readmission penalty. Incomes can be adjusted for cost of living (purchasing power parity) by using US government locality pay. AARP presents arguments for and against basing premiums on income.

In the spreadsheet you can try different percentages and bands. A 3% charge could have bands of income where people pay

• 2.5% to 3.5% of income between $72,000-$402,000 for couples
  
• 2.5% to 3.5% of income between $36,000-$201,000 for individuals

People below that pay more; people at the top pay less. The plan would raise $6 billion per year.

The graphs show subsidies people would receive from various proposals. The current Medicare subsidy is large, even at incomes well over $100,000. The government does not subsidize food or housing for people at those incomes. The highest income limit on Food Stamps is $15,000 for one person, $20,000 for two; in subsidized housing it is $55,000 for one, $63,000 for two (Honolulu). Housing tax benefits do go to higher incomes, but people still have to pay the basic cost themselves. Why does the government make such large direct payments for health insurance for people with incomes over $100,000?

Map shows where hospitals are (or maps of doctors)
​Financial Data (below)
Quality measures and mixed incentives
Readmission penalties or xls (6MB)
Biggest penalties (methods)
Previous data: Readmission Penalties (August 2013, 3 MB xls)
List of Accountable Care Organizations (many include hospitals)
Other Medicare data
Medicare Costs, Premiums, and Alternatives

​A slideshow describes different sources of information for non-profit, profit, and publicly owned hospitals, as of 2013.

A spreadsheet (5MB) shows each hospital's 2013 or 2014 financial statements, and many Medicare calculations at each hospital. It includes both Medicare and non-Medicare revenue and spending. It is compiled by Medicare to provide a context for Medicare spending in each hospital, and is called a "Medicare Cost Report"

The spreadsheet includes:

• Revenue from patients, investments, donations, and other
• Expenses for Salaries, Capital, major departments such as ICU, Operating room, Radiology, Emergency, Lab, Pharmacy, Administration, Building operation
• Chain membership, Ownership type, number of beds, number of Medicare patients, address, phone, latitude + longitude, date certified
• Medicare payments for Diagnostic groups, outliers, education,
• Several penalties: HAC, VBP, IQR, EHR, and readmissions.

The spreadsheet has brief labels; fuller explanations are in the original Medicare form and instructions. Chapter 40 of Medicare's manual has the form (R6P240f), including work sheets S (p.1),  A (p.22), E (p.84), and G (p.100). Chapter 40 also has the instructions (pr2_40, abbreviations are on pp.9-11), which can answer many questions about the entries on the form. The current format has been used since 2010, and other data are available back to 1995.

Another article shows helpful commands for the spreadsheet.

The source also has each hospital's occupancy rate for several departments: general, maternity, ICU, coronary care, burn, hospice, psychiatric, rehab, etc. These have not been put in this spreadsheet. If you would find the occupancy rates useful, please leave a comment below or send an email.

​Medicare offers online access and downloadable spreadsheets for 2014 and 2015, without breakdowns by department, ownership, latitude+longitude or penalties.

The original Medicare databases are available from 1995 to the present. They are far more complex than the spreadsheet, with 3 types of records, and millions of records, since every number and answer on each form has a separate record. For those who need it, a CMS documentation page has record  counts, a spreadsheet of hospitals covered, and  layouts. The Medicare database averages 3,000 numeric records and 600 alpha records per hospital each year. 65 key items are in the spreadsheet, and others can be available if needed.

Electronic Municipal Market Access (EMMA) has PDF copies of operating expense and audited financial statements for each hospital (or other facility), if it has outstanding tax-free bonds. Put hospital name in their search box, to list its past & present bonds. Click any bond which is still outstanding (on right), accept the disclosure, then click "Continuing Disclosure" to see annual and sometimes quarterly data. The data are similar to the spreadsheet above, but in PDF, often with more data from the past, but fewer hospitals.

"Summary of audit findings and federal awards" is an Audit Clearinghouse form a few pages long for each hospital showing checkoffs for any audit findings, and the amount of each federal grant spent during a year ("awards"); it does not cover Medicare or Medicaid, since these are exempt from the federal "single audit" rules. It also shows address, Employer ID number (EIN) and DUNS number. 

IRS form 990 for US nonprofit hospitals is available from AHCJ (search by name, place or person; just hospitals; other sources have many more non-profits, which can make hospitals harder to find), Open990 (2010 to present, downloadable spreadsheets) or Guidestar or Foundation Center or ProPublica or Charity Navigator, or CitizenAudit (full text search $350/yr). Form 990 shows total revenue and expense and highly paid staff (schedule J ) and contractors (VII-B). It also shows total received from Medicare and Medicaid in section VIII-2 "Revenue, Program Service," and several types of expenses in section IX, balance sheet in X, political spending in schedule C.

Canadian nonprofits (non-governmental organisations, NGOs) are listed, and some have financial information, at a government site:
apps.cra-arc.gc.ca/ebci/hacc/srch/pub/dsplyBscSrch