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Billing code G0311 · Physician & professional

G0311 Medicaid reimbursement rate by state (2026)

Immunization counseling by a physician or other qualified.... Medicaid pays a median of $30.65 for G0311 across 11 states, from $12.12 in New Jersey to $56.10 in Indiana.

Data as of Oct 5, 202611 statesEvery rate links to its official source

States publishing
11
National median
$30.65units vary by state
Lowest
$12.12New Jersey
Highest
$56.10Indiana
Answer

What does Medicaid pay for G0311?

11 state Medicaid programs publish a fee-for-service rate for G0311. The national median is $30.65 (units differ between states). Indiana pays the most, $56.10 per unit, and New Jersey the least, $12.12, a 4.6x spread.

State ranking

G0311 rate by state: highest, middle and lowest

One like-for-like fee-for-service rate per state, ranked. The workspace lists all 11 states with every variant, modifier and effective date.

#StateMedicaid rateUnitPer hourManaged-care plans% of Medicare
1Indiana Source · since 2026-01-01$56.10unit—Plans must pay at least this—
2Arizona Source · since 2023-10-01$44.94——Plans negotiate; applies out of network—
3Michigan Source · since 2024-01-01$39.83——Plans negotiate; applies out of network—
5Wisconsin Source · since 2023-04-01$33.26——Plans negotiate; applies out of network—
6New Hampshire Source · since 2023-07-01$30.65——Plans negotiate; applies out of network—
10Hawaii Source · since 2024-03-04$24.13——Plans negotiate; applies out of network—
11New Jersey Source · since 2024-07-01$12.12——Not classified—
See all 11 states for G0311 — start free

4 more states, with every modifier and provider-type variant, rate history and the plan rule in each state. 14-day free trial, no credit card.

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Rates are per the unit shown for each state; units can differ between states. Medicare amounts are computed from the CMS relative value file and locality cost indices; states with several Medicare localities show a range. Confirm rates with the payer before billing.

Track G0311 in your states. Get an alert when any state changes it, with every variant and the managed-care rule.
Guide

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 G0311, 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. 6 of the 11 states list more than one rate for G0311, 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 11 states, 1 publish G0311 per unit, and 10 schedules print no unit at all (a flat amount per service).
  • Per hour. G0311 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 G0311, 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.
Context

Why G0311 rates differ between states

Published rates for G0311 run from $12.12 in New Jersey to $56.10 in Indiana. The two publish it in different units (unit versus no unit printed), so part of that gap is the unit rather than the price. Half the states pay more than the median of $30.65 and half pay less. The usual reasons for a spread like this in physician & professional rates:

  • 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.
  • 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.
  • Primary-care and pediatric add-ons, enhanced rates for certain specialties and targeted increases for access problems change individual codes without moving the rest of the schedule.

Timing matters too. 3 states set the current rate for G0311 in 2026 or later, while 1 state 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.

Managed care

What managed-care plans pay for G0311

No managed-care plan publishes what it pays for G0311. What is public is the rule each state's plan contracts set, and that rule decides how much the published rate matters when you contract with a plan.

In 3 states, the published rate binds plans: a floor, a pass-through or a state-set rate. In 6 states, plans negotiate and the published rate is a benchmark or out-of-network default. The rule for the remaining 2 states is not classified yet.

  • Plans negotiate; the published rate applies out of network (6 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.

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 Indiana managed care.

Billing

Units and billing for G0311

G0311 is a HCPCS Level II professional services code in the physician & professional line, billed mostly by physicians, nurse practitioners, physician assistants and other licensed practitioners. G codes describe professional services and procedures that have no CPT code, or that payers define more narrowly. Many are timed, so check the unit before comparing.

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.

FAQ

Frequently asked questions

What does Medicaid pay for G0311?

It depends on the state. Of the 11 states with a published fee-for-service rate, the median is $30.65. Indiana pays the most ($56.10 per unit) and New Jersey the least ($12.12).

Which state pays the highest Medicaid rate for G0311?

Indiana, at $56.10 per unit, effective 2026-01-01.

Which state pays the lowest Medicaid rate for G0311?

New Jersey, at $12.12, effective 2024-07-01. It publishes the code in a different unit from Indiana, so compare per unit with care.

What unit is G0311 billed in?

Of the 11 states, 1 publish G0311 per unit, and 10 schedules print no unit at all (a flat amount per service).

Do managed-care plans pay the same rate for G0311?

Not necessarily. In 3 states, the published rate binds plans: a floor, a pass-through or a state-set rate. In 6 states, plans negotiate and the published rate is a benchmark or out-of-network default. The rule for the remaining 2 states is not classified yet. Each rule is cited to the plan contract, statute or notice in the workspace.