84166 Medicaid reimbursement rates by state
Clinical lab tests. 25 state Medicaid programs publish a fee-for-service rate for 84166 at the physician psychologist level. Rates run from $8.56 in Florida to $22.82 in Illinois, with a median of $15.85.
Data as of 2026-10-05. Every rate links to the official document it came from.
- States publishing
- 25
- Median rate
- $15.85units vary by state
- Highest
- $22.82Illinois
- Medicare (non-facility)
- —not on the physician fee schedule
84166 rate in every state
One like-for-like fee-for-service rate per state, highest first. Units can differ between states; the per-hour column converts time-based units.
| State | Medicaid rate | Unit | Per hour | Managed-care plans | % of Medicare | Source |
|---|---|---|---|---|---|---|
| IllinoisAny qualified provider (rate does not vary by provider) · Illinois Medicaid (HFS fee-for-service) | $22.82since 2024-04-01 | — | — | Plans negotiate; applies out of network | — | HFS Practitioner Fee Schedule (effective |
| GeorgiaAny qualified provider (rate does not vary by provider) · Georgia Medicaid (fee-for-service) | $22.43since 2017-01-01 | — | — | Plans negotiate; applies out of network | — | Lab Max Allowable (in Zipped 2017 Fee Sc |
| TexasPhysician or licensed psychologist (incl. BCBA-D) · Texas Medicaid (fee-for-service, TMHP) | $17.83since 2021-11-17 | — | — | Plans negotiate; applies out of network | — | TMHP Texas Medicaid Fee Schedule - Physi |
| WisconsinAny qualified provider (rate does not vary by provider) · Wisconsin Medicaid and BadgerCare Plus (fee-for-service, ForwardHealth maximum allowable fees) | $17.83since 2020-01-01 | — | — | Plans negotiate; applies out of network | — | ForwardHealth max fee schedule: Medical- |
| NebraskaAny qualified provider (rate does not vary by provider) · Nebraska Medicaid (fee-for-service) | $17.83since 2026-07-01 | — | — | Plans negotiate; applies out of network | — | Nebraska Medicaid fee schedule 471-000-5 |
| KentuckyAny qualified provider (rate does not vary by provider) · Kentucky Medicaid (fee-for-service, DMS fee schedules) | $17.83since 2020-01-01 | — | — | Plans negotiate; applies out of network | — | KY Medicaid Clinical Lab fee schedule (2 |
| MinnesotaAny qualified provider (rate does not vary by provider) · Minnesota Health Care Programs: Medical Assistance (fee-for-service) | $17.62since 2026-01-01 | — | — | Plans negotiate; applies out of network | — | MHCP Fee Schedule - Current Fee Schedule |
| MarylandAny qualified provider (rate does not vary by provider) · Maryland Medicaid (fee-for-service, MDH) | $17.34since 2026-02-01 | — | — | Not classified | — | Maryland Medicaid Medical Laboratory Fee |
| IndianaAny qualified provider (rate does not vary by provider) · Indiana Medicaid (fee-for-service) | $16.60since 2026-01-01 | unit | — | Plans must pay at least this | — | IHCP Professional Fee Schedule (Last Upd |
| LouisianaAny qualified provider (rate does not vary by provider) · Louisiana Medicaid (fee-for-service) | $16.29since 2026-01-01 | — | — | Plans must pay at least this | — | Louisiana Medicaid Enhanced Professional |
| ArizonaAny qualified provider (rate does not vary by provider) · Arizona AHCCCS fee-for-service (AIHP, Tribal ALTCS, TRBHA and other FFS members) | $16.05since 2026-10-01 | — | — | Plans negotiate; applies out of network | — | AHCCCS FFS Capped Fee Schedule: Clinical |
| MissouriAny qualified provider (rate does not vary by provider) · Missouri MO HealthNet (fee-for-service) | $16.05since 2026-07-01 | — | — | Plans negotiate; applies out of network | — | MO HealthNet fee schedule: Independent L |
| CaliforniaAny qualified provider (rate does not vary by provider) · California Medi-Cal (fee-for-service) | $15.85since 2026-10-01 | — | — | Plans negotiate; applies out of network | — | Medi-Cal Rates (Rates files zip: rates_d |
| VirginiaAny qualified provider (rate does not vary by provider) · Virginia Medicaid (fee-for-service, DMAS) | $15.34since 2026-07-01 | — | — | Plans negotiate; applies out of network | — | DMAS procedure fee file cptmedical4.csv |
| PennsylvaniaPhysician or licensed psychologist (incl. BCBA-D) · Pennsylvania Medical Assistance (fee-for-service) | $15.21since 2015-03-02 | — | — | Plans negotiate; applies out of network | — | PA DHS PROMISe Outpatient Fee Schedule ( |
| North CarolinaAny qualified provider (rate does not vary by provider) · North Carolina Medicaid Direct (fee-for-service) | $14.74since 2025-10-01 | — | — | Plans must pay at least this | — | NC Medicaid fee schedule 'Clinical Pharm |
| ColoradoAny qualified provider (rate does not vary by provider) · Child Health Plan Plus (CHP+, Colorado's CHIP) | $14.28since 2026-07-01 | — | — | Plans negotiate; applies out of network | — | Child Health Plan Plus FY 2026-2027 Fee |
| New JerseyAny qualified provider (rate does not vary by provider) · New Jersey Medicaid / NJ FamilyCare (fee-for-service) | $14.26since 2025-01-01 | — | — | Not classified | — | NJMMIS Procedure Master Listing CPTHCPCS |
| South CarolinaAny qualified provider (rate does not vary by provider) · South Carolina Healthy Connections Medicaid (fee-for-service) | $13.91since 2024-07-01 | — | — | Not classified | — | SCDHHS Base Physician Fee Schedule (sche |
| OhioAny qualified provider (rate does not vary by provider) · Ohio Medicaid (fee-for-service) | $13.37since 2021-01-01 | — | — | Plans negotiate; applies out of network | — | ODM laboratory services payment schedule |
| MassachusettsAny qualified provider (rate does not vary by provider) · MassHealth (fee-for-service, EOHHS 101 CMR rate regulations) | $13.01since 2026-10-01 | — | — | Plans negotiate; applies out of network | — | Emergency Adoption (date filed: Septembe |
| New YorkAny qualified provider (rate does not vary by provider) · New York Medicaid (fee-for-service) | $11.36since 2020-05-29 | — | — | Plans negotiate; applies out of network | — | eMedNY NYS Medicaid Laboratory Fee Sched |
| MichiganAny qualified provider (rate does not vary by provider) · Michigan Medicaid (fee-for-service) | $11.29since 2025-01-01 | — | — | Plans negotiate; applies out of network | — | MDHHS Clinical Laboratory Fee Schedule, |
| WashingtonAny qualified provider (rate does not vary by provider) · Washington Apple Health (Medicaid) fee-for-service | $10.51since 2026-07-01 | — | — | Plans negotiate; applies out of network | — | HCA Kidney centers fee schedule (kidneyc |
| FloridaAny qualified provider (rate does not vary by provider) · Florida Medicaid (fee-for-service) | $8.56since 2026-01-01 | — | — | Plans negotiate; applies out of network | — | Practitioner Laboratory Fee Schedule (20 |
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 with the CMS formula; states with several Medicare localities show a range. Confirm rates with the payer before billing.
Frequently asked questions
What does Medicaid pay for 84166?
It depends on the state. Of the 25 states with a published fee-for-service rate, the median is $15.85. Illinois pays the most ($22.82) and Florida the least ($8.56).
Which state pays the highest Medicaid rate for 84166?
Illinois, at $22.82, effective 2024-04-01.
Do managed-care plans pay the same rate for 84166?
Not necessarily. Each state's plan contracts decide whether plans must pay at least the fee-for-service rate, pay a state-set rate, or negotiate their own. The table shows the rule for each state, cited to the contract or statute.
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Track 84166 in your statesYour codes on one rate card: every payer's rule, Medicare comparison, rank and rate changes.