Medicaid; establishing certain requirements and procedures for audits of providers; directing establishment of certain appeals. Effective date.
SB 1645 establishes new rules for auditing long-term care providers (like nursing homes and Medicaid home-care agencies) under Oklahoma's Medicaid program. It requires the Oklahoma Health Care Authority to give providers 1 week's notice before audits, limits audits to 50 claims or 0.25% of annual claims, and prohibits holding providers liable for simple clerical errors (like typos) as fraud. Providers must be allowed 60 days to correct claims after an audit, and recoupments (recovery of overpaid funds) can only apply to corrected claims, not original billing errors. The bill also creates a two-step appeals process, allowing providers to challenge audit results through the Authority and then to an administrative law judge.
Bill status
signed
all 5 stages cleared
Introduction
Feb 2026
Committee Review
Apr 2026
Senate Passage
Mar 2026
House Passage
Apr 2026
Signed into Law
May 2026
Introduced Feb 2, 2026
Signed May 5, 2026
Maddy AI version diff · 5 comparisons
What changed between versions
Floor (House)
→
Floor (Senate)
·
5 edits
MODERATE
The bill was revised from a House version to a Senate version, primarily to align with committee amendments and standard formatting. The substantive policy content, including definitions, audit procedures, and recoupment rules, remains identical between the two versions.
TECHNICAL
The document header was updated to reflect the 'Senate Floor Version' and included the date February 9, 2026, replacing the 'House of Representatives' header.
The bill title was changed from 'ENGROSSED SENATE BILL' to 'COMMITTEE SUBSTITUTE' to indicate it has been amended by a committee.
The legislative session line was repositioned and the bill number section was restructured to match Senate formatting standards.
Page footers were updated to reflect the Senate Floor Version and included a note that bold face text denotes Committee Amendments.
Line numbers and spacing were adjusted throughout the text to accommodate the new formatting layout.
Floor votes · Senate Mar 25, 2026 · House Apr 29, 2026
How they voted
48–0
Passed · 2 other
Total votes 50
Mar 25, 2026
D
Democratic9
100% Yea
R
Republican41
95% Yea
Vote distribution
All Yea
All Nay
Mixed
No data
Full legislative history
Actions timeline
Total actions
27
Key actions
7
Committee
7
Amendments
1
May 5, 2026
Signed into law
Approved by Governor 05/01/2026
upper
Apr 29, 2026
Committee
Referred for enrollment
upper
Apr 29, 2026
Lower · Passed
Third Reading, Measure passed: Ayes: 79 Nays: 7
lower
Apr 13, 2026
Lower · Passed
CR; Do Pass Health and Human Services Oversight Committee
lower
Apr 1, 2026
Lower · Passed
Policy recommendation to the Health and Human Services Oversight committee; Do Pass Public Health
lower
Mar 30, 2026
Committee
Referred to Public Health
lower
Mar 26, 2026
Introduced
First Reading
lower
Mar 26, 2026
Upper · Passed
Engrossed to House
upper
Mar 25, 2026
Committee
Referred for engrossment
upper
Mar 25, 2026
Upper · Passed
Measure passed: Ayes: 46 Nays: 0
upper
Mar 25, 2026
Introduced
General Order, Amended by Floor Substitute
upper
Feb 9, 2026
Committee
Referred to Appropriations
upper
Feb 9, 2026
Upper · Passed
Reported Do Pass, amended by committee substitute Health and Human Services committee; CR filed
upper
Feb 2, 2026
Introduced
First Reading
upper
2 primary · 0 co-sponsors
Sponsors
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