---
type: "Bill"
title: "Medicaid; establishing certain requirements and procedures for audits of providers; directing establishment of certain appeals. Effective date."
description: "Medicaid; establishing certain requirements and procedures for audits of providers; directing establishment of certain appeals. Effective date."
jurisdiction: "us/states/ok"
legislature: "Oklahoma Legislature"
session: "2026"
identifier: "SB 1645"
citation: "Oklahoma SB 1645 (2026)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Gollihare", "Lawson"]
version_count: 9
action_count: 28
vote_count: 5
first_action: "2026-02-02"
last_action: "2026-05-05"
source: "openstates"
source_identifier: "ocd-bill/d69bff19-f0b3-4a97-bd7a-3ab9f48a264c"
source_url: "http://www.oklegislature.gov/BillInfo.aspx?Bill=SB1645&session=2600"
source_hash: "9533e7de6d063b4f8f12716552b4ea79dd837b9b674aef6654a48d87d95fddf9"
vintage: "2026-07-01"
source_snapshot: "https://data.openstates.org/daily/2026-07-01/public.pgdump"
retrieved_at: "2026-07-06"
confidence: "reported"
tags: ["legislation", "bill", "us-ok"]
---

# Oklahoma SB 1645 (2026) — Medicaid; establishing certain requirements and procedures for audits of providers; directing establishment of certain appeals. Effective date.

## Version chain

The bill's text revisions, in order — the diff chain from filing to enrollment.

1. **Introduced** (filed) — [source](https://www.oklegislature.gov/cf_pdf/2025-26 INT/SB/SB1645 INT.PDF)
2. **Committee Amendment** (committee substitute) — [source](https://www.oklegislature.gov/cf_pdf/2025-26 COMMITTEE AMENDMENTS/Senate/SB1645 PCS.PDF)
3. **Committee Substitute** (committee substitute) — [source](https://www.oklegislature.gov/cf_pdf/2025-26 COMMITTEE SUBS/SCS/SB1645 CS.PDF)
4. **Engrossed** (committee substitute) — [source](https://www.oklegislature.gov/cf_pdf/2025-26 ENGR/SB/SB1645 ENGR.PDF)
5. **Enrolled (final version)** (committee substitute) — [source](https://www.oklegislature.gov/cf_pdf/2025-26 ENR/SB/SB1645 ENR.PDF)
6. **Floor (House)** (committee substitute) — [source](https://www.oklegislature.gov/cf_pdf/2025-26 FLR/HFLR/SB1645 HFLR.PDF)
7. **Floor (Senate)** (committee substitute) — [source](https://www.oklegislature.gov/cf_pdf/2025-26 FLR/SFLR/SB1645 SFLR.PDF)
8. **SB1645 (3-17-26) (GOLLIHARE) FS FA1.PDF** (committee substitute) — [source](https://www.oklegislature.gov/cf_pdf/2025-26 FLOOR AMENDMENTS/Senate/SB1645 (3-17-26) (GOLLIHARE) FS FA1.PDF)
9. **SB1645 (3-17-26) (GOLLIHARE) RT FA2.PDF** (committee substitute) — [source](https://www.oklegislature.gov/cf_pdf/2025-26 FLOOR AMENDMENTS/Senate/SB1645 (3-17-26) (GOLLIHARE) RT FA2.PDF)

## Votes

- Third Reading — **46–0** (pass) · upper
- Health & Human Services — **11–0** (pass) · upper
- Third Reading — **79–7** (pass) · lower
- Public Health Committee: Do Pass — **5–0** (pass) · lower
- Health And Human Services Oversight Committee: Do Pass — **10–0** (pass) · lower

## Sponsors

- Gollihare — primary (person)
- Lawson — primary (person)

## Timeline

The legislative action history — every referral, reading, and vote.

- **2026-02-02** First Reading `introduction, reading-1`
- **2026-02-02** Authored by Senator Gollihare
- **2026-02-03** Second Reading referred to Health and Human Services Committee then to Appropriations Committee `reading-2, referral-committee`
- **2026-02-03** Coauthored by Representative Lawson (principal House author)
- **2026-02-09** Reported Do Pass, amended by committee substitute Health and Human Services committee; CR filed `committee-passage`
- **2026-02-09** Title stricken
- **2026-02-09** Referred to Appropriations `referral-committee`
- **2026-02-16** Withdrawn from Appropriations committee
- **2026-02-16** Placed on General Order
- **2026-03-25** General Order, Amended by Floor Substitute
- **2026-03-25** Title restored
- **2026-03-25** Measure passed: Ayes: 46 Nays: 0 `passage`
- **2026-03-25** Referred for engrossment
- **2026-03-26** Engrossed to House `passage`
- **2026-03-26** First Reading `introduction, reading-1`
- **2026-03-30** Second Reading referred to Health and Human Services Oversight `reading-2, referral-committee`
- **2026-03-30** Referred to Public Health `referral-committee`
- **2026-04-01** Policy recommendation to the Health and Human Services Oversight committee; Do Pass Public Health `committee-passage`
- **2026-04-13** CR; Do Pass Health and Human Services Oversight Committee `committee-passage`
- **2026-04-13** Coauthored by Representative(s) Williams
- **2026-04-29** General Order
- **2026-04-29** Third Reading, Measure passed: Ayes: 79 Nays: 7 `passage, reading-3`
- **2026-04-29** Signed, returned to Senate
- **2026-04-29** Referred for enrollment
- **2026-04-29** Enrolled, to House
- **2026-04-29** Signed, returned to Senate
- **2026-04-29** Sent to Governor `executive-receipt`
- **2026-05-05** Approved by Governor 05/01/2026 `executive-signature`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/d69bff19-f0b3-4a97-bd7a-3ab9f48a264c`. Confidence: reported (aggregated from official Oklahoma legislature records).