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Drug Comparative Graphing & Analytics
Chart a reference product against its biosimilar, or any two Medicare-priced drug codes, and see how their payment limits moved quarter by quarter. Two years are free; ASP, WAC, AWP, the full history, and 15 codes on one chart come with a subscription.
- 2 years of payment-limit history, free
- 51 reference vs biosimilar pairs
- 918 priced HCPCS drug codes
Trusted by Leading Healthcare Organizations
Free tool · 5 free comparisons, no account needed
Two drugs, one graph
Put a reference product and its biosimilar on the same axis, or search any two Medicare-priced drug codes. Medicare Payment Limit, nine quarters, straight from the CMS quarterly payment limit file.
Medicare Payment Limit per 10 mg
Avastin · reference
$75.492
+3.8% over nine quarters
Mvasi · biosimilar
$28.294
+6.4% over nine quarters
Gap this quarter
−62.5% $47.198 per 10 mg
Mvasi below Avastin
Payment limit, indexed 100 at the first quarter
Q4 2024 to Q4 2026 Both drugs on one dollar axis Medicare Payment Limit only
You are seeing one benchmark and nine quarters.
A subscription puts ASP, WAC, and AWP on the same axis, opens the earlier quarters, plots every Bevacizumab biosimilar at once, and exports the comparative report as a PDF.
You’ve used your 5 free comparisons
Log in to keep charting, or start a 7-day free trial to put ASP, WAC, and AWP on the same axis and compare up to 15 codes at once.
How It Works
Build a Drug Pricing Comparison in Seconds
Two drugs, one chart, nine quarters of the Medicare Payment Limit. Five comparisons free, no account needed. A subscription removes the cap, widens the window, and adds the other three benchmarks.
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Pick two drugs
Search either box for any drug or HCPCS code. Both are yours to change, and a biosimilar family loads a pair in one click.
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Read them on one axis
Dollars compares price. Indexed compares movement. Gap shows the difference in percent. Hover a quarter to read both figures.
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Go deeper with a subscription
Add true ASP, WAC, and AWP, 15 codes on one chart, history back to January 2015, and a PDF you can send on.
Reference vs Biosimilar
Where Biosimilars Sit Against Their Reference Drug
The 14 molecules with a reference product and at least one biosimilar CMS prices today, at the Medicare Payment Limit for Q4 2026, ordered by the widest gap against their reference drug. Filter for your molecule, or open the full set. Pick any row to chart the pair above, or follow a drug through to its full record.
14 molecules · 51 pairs
No molecule matches that. Try a brand name like Avastin, a molecule like bevacizumab, or a code like Q5107.
14 of the 51 pairs sit above their reference product this quarter, led by Byooviz (Q5124) at +845.6% against Lucentis. These are the figures CMS published, not errors: a biosimilar sets its own Average Sales Price, and a newly launched one can sit above the originator for several quarters before it settles below.
Pairs are only listed when both codes bill in the same unit, so every difference on this page is a real price gap rather than a unit mismatch. Figures are the Medicare Payment Limit per billing unit; a subscription opens the ASP, WAC, and AWP behind each.
What You Get
What a Subscription Unlocks
This chart shows one benchmark, two drugs, nine quarters. Here is the rest of it.
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True ASP, WAC, and AWP
The three benchmarks behind the payment limit, plus the ASP/WAC ratio, on every drug we cover.
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15 drugs on one chart
Graph up to 15 HCPCS codes at once, back to January 2015.
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Save and filter
Keep a report to come back to, and filter down to a drug class.
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Updated weekly
Every price refreshes weekly, so the figures are the current ones.
Who It's For
Built for Everyone Who Touches the Claim
Four questions, four answers from this quarter's figures. Each one loads into the chart at the top of the page.
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Billing & revenue cycle
Did our reimbursement move this quarter?
Avastin is +3.8% over nine quarters
Chart J9035 -
Practices that buy and bill
Which product should we be buying?
Ruxience sits 92.0% below Rituxan
Chart J9312 vs Q5119 -
Market access & pricing
How fast is the gap closing?
Rituxan and Ruxience, rebased to 100 at the same quarter
Chart the trend -
Payers & consultants
Why is this biosimilar the dearer code?
Byooviz is +845.6% against Lucentis
Chart the gap
FAQs
Drug Comparative Graphing FAQs
What can be charted for free, how the benchmarks differ, and how often the pricing behind them is refreshed.
Still have a question? Contact usHow many drugs can I compare at once?
The chart on this page compares two drugs at a time. You can put a reference product against one of its biosimilars, or against any other drug code that Medicare prices. A subscription raises that to 15 codes on a single graph, and lets you save the report and return to it.
Which benchmarks can I chart?
The free chart shows the Medicare Payment Limit, which is the amount Medicare Part B allows per billing unit. A subscription adds ASP, WAC, and AWP, so that list price and reimbursement appear on the same graph.
Are the two drugs always comparable per billing unit?
Only when both codes bill in the same unit. Every figure here is a price per billing unit, and each code sets its own: one drug can be priced per 10 mg and another per 1 mg, so putting those two dollar figures side by side would tell you nothing. When the units differ, the tool still charts both drugs, but it hides the gap, switches off the Gap view, and names the two units so you can see why.
How often is pricing updated?
ASP and the Medicare Payment Limit follow the CMS quarterly schedule, taking effect in January, April, July, and October, and we apply CMS corrections as soon as they are published. WAC and AWP are refreshed every week. This page is rebuilt daily, so the comparison always reflects the current published quarter. For a whole molecule at once rather than two codes, the biosimilar analysis workbench charts every biosimilar against its reference product.
Can I export the comparison?
The free chart cannot be downloaded, but none of its figures are hidden: hover over any quarter to read the payment limit for both drugs. Subscribers can download the full comparative report as a PDF.
Can I view trends without an account?
Yes. Your first five comparisons are free and require no account: choose any two drugs and chart nine quarters of the Medicare Payment Limit for both. After the fifth, the chart asks you to log in or subscribe before drawing a new pair. ASP, WAC, and AWP, along with the history back to January 2015, are what a subscription adds.
What BuyandBill.com Does
Other Capabilities
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Explore More →Billing Calculator
Convert package pricing to billing units and estimate reimbursement in seconds.
Explore More →Compare Any Drugs in Seconds
Start a free trial and chart ASP, WAC, and AWP across drugs and biosimilars on one interactive graph.
