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Billing code G0315 · Physician & professional

G0315 Medicaid reimbursement rate by state (2026)

Immunization counseling by a physician or other qualified.... Medicaid pays a median of $22.63 for G0315 across 28 states, from $9.17 in Hawaii to $149.99 in Idaho.

Data as of Oct 5, 202628 statesEvery rate links to its official source

States publishing
28
National median
$22.63units vary by state
Lowest
$9.17Hawaii
Highest
$149.99Idaho
Answer

What does Medicaid pay for G0315?

28 state Medicaid programs publish a fee-for-service rate for G0315. The national median is $22.63 (units differ between states). Idaho pays the most, $149.99, and Hawaii the least, $9.17, a 16.4x spread.

State ranking

G0315 rate by state: highest, middle and lowest

One like-for-like fee-for-service rate per state, ranked. The workspace lists all 28 states with every variant, modifier and effective date.

#StateMedicaid rateUnitPer hourManaged-care plans% of Medicare
1Idaho Source · since 2025-09-01$149.99——Not classified—
2Mississippi Source · since 2022-05-11$54.34——Plans must pay at least this—
3North Dakota Source · since 2026-07-01$43.40——Not classified—
14Rhode Island Source · since 2025-04-21$23.15——Plans negotiate; applies out of network—
15Delaware Source · since 2024-01-01$22.10——Plans negotiate; applies out of network—
16Arizona Source · since 2022-10-01$21.84——Plans negotiate; applies out of network—
27Kansas Source · since 2022-05-11$10.00——Plans must pay at least this—
28Hawaii Source · since 2024-03-04$9.17——Plans negotiate; applies out of network—
See all 28 states for G0315 — start free

20 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 G0315 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 G0315, 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. 14 of the 28 states list more than one rate for G0315, 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 28 states, 1 publish G0315 per unit, and 27 schedules print no unit at all (a flat amount per service).
  • Per hour. G0315 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 G0315, 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 G0315 rates differ between states

Published rates for G0315 run from $9.17 in Hawaii to $149.99 in Idaho, a 16.4x gap in the same unit. Half the states pay more than the median of $22.63 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. 9 states set the current rate for G0315 in 2026 or later, while 6 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.

Managed care

What managed-care plans pay for G0315

Most Medicaid members are in managed-care plans, and plans don't publish their provider fee schedules. For G0315, the public signal is the rule each state sets for its plans, recorded on each rate above.

In 8 states, the published rate binds plans: a floor, a pass-through or a state-set rate. In 12 states, plans negotiate and the published rate is a benchmark or out-of-network default. The rule for the remaining 8 states is not classified yet.

  • Plans negotiate; the published rate applies out of network (12 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 (8 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 Idaho managed care.

Billing

Units and billing for G0315

G0315 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.

Practitioners who are not physicians are often paid a reduced percentage of the published amount, so check the schedule for the reduction that applies to your provider type. 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 G0315?

It depends on the state. Of the 28 states with a published fee-for-service rate, the median is $22.63. Idaho pays the most ($149.99) and Hawaii the least ($9.17).

Which state pays the highest Medicaid rate for G0315?

Idaho, at $149.99, effective 2025-09-01.

Which state pays the lowest Medicaid rate for G0315?

Hawaii, at $9.17, effective 2024-03-04.

What unit is G0315 billed in?

Of the 28 states, 1 publish G0315 per unit, and 27 schedules print no unit at all (a flat amount per service).

Do managed-care plans pay the same rate for G0315?

Not necessarily. In 8 states, the published rate binds plans: a floor, a pass-through or a state-set rate. In 12 states, plans negotiate and the published rate is a benchmark or out-of-network default. The rule for the remaining 8 states is not classified yet. Each rule is cited to the plan contract, statute or notice in the workspace.