Look up Medicare procedure costs, national average CMS fee schedules, 20% coinsurance responsibilities, and facility vs office cost comparisons.
Common Outpatient Procedures:
Loaded CPT 66984: Extracapsular Cataract Removal with IOL Insertion.
CPT 66984OphthalmologyMedicare Part B
Extracapsular Cataract Removal with IOL Insertion
Removal of clouded crystalline lens using phacoemulsification ultrasound probe, followed by implantation of an artificial intraocular lens prosthesis in one eye.
Total Medicare Allowed Amount$1,894.00Ambulatory Surgery Center
Medicare Pays (Approx. 80%)$1,515.20Federal Part B reimbursement
Patient Coinsurance (20%)$378.80If annual Part B deductible met
Facility Setting Cost Comparison
Medicare reimburses different rates depending on whether the procedure is performed in an independent Ambulatory Surgical Center (ASC) or a Hospital Outpatient Department (HOPD).
Facility Setting
Facility Fee
Doctor Fee
Total Allowed
Your 20% Copay
Ambulatory Surgery Center (ASC)
$1,328.00
$566.00
$1,894.00
$378.80
Hospital Outpatient Dept (HOPD)
$2,280.00
$566.00
$2,846.00
$569.20
Doctor's Office (In-Clinic)
N/A
$680.00
$680.00
$136.00
CMS Billing & Coverage Specifications
Global Surgery Period:90 Days (Major Surgery)
Prior Authorization:Not typically required for traditional Part B
Bilateral Billing Rule:150% Payment adjustment applies with Modifier 50
Typical Anesthesia:Monitored Anesthesia Care (MAC) or Topical
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About this tool
How to use it
Enter a CPT procedure code (such as 66984, 45378, 27447) or browse by specialty category.
Toggle between Ambulatory Surgery Center (ASC), Hospital Outpatient (HOPD), and Office care settings.
Review Medicare allowable fee schedules, federal 80% contribution, and patient 20% coinsurance liability.
Select your Medigap policy (Plan G, Plan N) and deductible status to calculate precise out-of-pocket expenses.
Why it matters
Medicare procedure billing is notoriously complex, with facility charges differing drastically between hospital outpatient departments and independent ambulatory surgery centers. This lookup lets patients compare official allowable fees and plan for coinsurance obligations in advance.
When to use it
Use when anticipating upcoming surgeries, diagnostic scopes, or radiology tests, verifying provider participation assignment, or estimating out-of-pocket medical expenses under Medicare.
Common questions
What is the difference between an ASC and HOPD Medicare fee?
Ambulatory Surgical Centers (ASCs) are independent outpatient facilities that typically bill Medicare significantly less for facility overhead than Hospital Outpatient Departments (HOPD), resulting in lower 20% patient coinsurance.
Does Medicare Part B cover 100% of procedure costs?
No. Traditional Medicare Part B covers 80% of the Medicare-approved allowable amount once the annual deductible is met. The beneficiary is responsible for the remaining 20% coinsurance unless covered by a Medigap policy.
What is a Medicare assignment agreement?
A participating Medicare physician accepts assignment, meaning they agree by law to accept the CMS fee schedule as payment in full and cannot balance-bill the patient above the standard 20% coinsurance.