S0145 Medicaid reimbursement rate by state (2026)
Injection, pegylated interferon alfa-2a, 180 mcg per ml. Medicaid pays a median of $1,113.42 for S0145 across 12 states, from $423.78 in New Mexico to $2,413.57 in Utah.
- States publishing
- 12
- National median
- $1,113.42units vary by state
- Lowest
- $423.78New Mexico
- Highest
- $2,413.57Utah
What does Medicaid pay for S0145?
12 state Medicaid programs publish a fee-for-service rate for S0145. The national median is $1,113.42 (units differ between states). Utah pays the most, $2,413.57, and New Mexico the least, $423.78, a 5.7x spread.
S0145 rate by state: highest, middle and lowest
One like-for-like fee-for-service rate per state, ranked. The workspace lists all 12 states with every variant, modifier and effective date.
How to read this table
- Order. States are listed from the highest published rate to the lowest. No single unit is shared by 8 or more states for S0145, so the order is by published amount and is not a like-for-like rank.
- Medicaid rate. The most the state's fee-for-service program pays for one unit, as published. 5 of the 12 states list more than one rate for S0145, by modifier, provider type or setting; the table shows the one that matches the provider level and setting used across states, without add-ons.
- Unit. Of the 12 states, 1 publish S0145 per unit, and 11 schedules print no unit at all (a flat amount per service).
- Per hour. S0145 is not billed in time units in these states, so no hourly figure is shown.
- Managed-care plans. The rule the state sets for its plans on this rate. What each rule means is explained below.
- % of Medicare. No Medicare physician fee schedule amount is on file for S0145, so there is no percentage.
- Source and date. Each Source link opens the state's own document; “since” is the date the rate took effect.
Why S0145 rates differ between states
Published rates for S0145 run from $423.78 in New Mexico to $2,413.57 in Utah, a 5.7x gap in the same unit. Half the states pay more than the median of $1,113.42 and half pay less. The usual reasons for a spread like this in physician & professional rates:
- Modifiers such as professional or technical component, bilateral, multiple procedure and assistant at surgery change the amount paid, and states apply them with their own percentages.
- Each state sets its own physician conversion factor or fee for every code, and many update them on a state budget cycle rather than on Medicare's calendar.
- Some states pay physician services as a percentage of the Medicare fee schedule; others keep a schedule of their own that may not have been rebased for years.
Timing matters too. 3 states set the current rate for S0145 in 2026 or later, while 2 states still pay a rate that took effect in 2022 or earlier. A state that has not updated its rate in years will drift down the ranking as others raise theirs.
What managed-care plans pay for S0145
What a plan pays for S0145 is negotiated privately, but the state decides how much room there is to negotiate. Here is how the rules break down across the 12 states.
In 3 states, the published rate binds plans: a floor, a pass-through or a state-set rate. In 7 states, plans negotiate and the published rate is a benchmark or out-of-network default. In 1 state, the service is paid outside the plans or through a state-directed payment. The rule for the remaining 1 state is not classified yet.
- Plans negotiate; the published rate applies out of network (7 states). In-network rates can be above or below the published rate. The published rate is the benchmark both sides know, and the fallback if no contract is signed.
- Plans must pay at least the published rate (3 states). The published rate is your floor. Negotiate up from it, and if a plan pays less, the contract provision is the basis for a payment dispute.
- Paid by the state, outside the plans (1 state). Bill the state's Medicaid program, not the plan, at the published rate. There is no plan contract to negotiate for this service.
Plan-negotiated rates are never estimated here. To see the rule and its citation for a particular state, open that state's managed-care page, for example Utah managed care.
Units and billing for S0145
S0145 is a HCPCS Level II temporary national code in the physician & professional line, billed mostly by physicians, nurse practitioners, physician assistants and other licensed practitioners. S codes were created for private payers and are widely used by Medicaid programs for services Medicare does not cover, such as home nursing and home infusion. Units range from 15 minutes to a day.
Physician-fee-schedule codes are billed per service: one unit is one occurrence unless the code itself is defined by time or quantity. Where a state publishes separate facility and non-facility amounts, the non-facility (office) amount is usually higher because the practice carries the overhead.
Before billing, confirm the rate, unit and any modifier with the state's current schedule or the plan: the amounts here are as published, not a guarantee of payment.
Frequently asked questions
What does Medicaid pay for S0145?
It depends on the state. Of the 12 states with a published fee-for-service rate, the median is $1,113.42. Utah pays the most ($2,413.57) and New Mexico the least ($423.78).
Which state pays the highest Medicaid rate for S0145?
Utah, at $2,413.57, effective 2026-10-01.
Which state pays the lowest Medicaid rate for S0145?
New Mexico, at $423.78, effective 2025-01-01.
What unit is S0145 billed in?
Of the 12 states, 1 publish S0145 per unit, and 11 schedules print no unit at all (a flat amount per service).
Do managed-care plans pay the same rate for S0145?
Not necessarily. In 3 states, the published rate binds plans: a floor, a pass-through or a state-set rate. In 7 states, plans negotiate and the published rate is a benchmark or out-of-network default. In 1 state, the service is paid outside the plans or through a state-directed payment. The rule for the remaining 1 state is not classified yet. Each rule is cited to the plan contract, statute or notice in the workspace.