THE PROJECTED IMPACT OF ELIMINATING PROPOSITION 56 SUPPLEMENTAL FUNDING ON CALIFORNIA’S MEDI-CAL DENTAL PROGRAM

Abstract

Proposition 56, approved by California voters in 2016, increased tobacco taxes and directed supplemental funding to healthcare programs, including dental services within California’s Medicaid program, Medi-Cal.¹ These supplemental payments substantially increased dental reimbursement rates, improving provider participation and patient access. Proposed elimination of Proposition 56 dental funding would remove approximately $500 million annually in state funds and roughly $850–900 million when federal Medicaid matching funds are included.² This Article analyzes the fiscal, provider participation, and patient access implications of removing Proposition 56 supplemental dental payments, with specific examination of restorative procedure reimbursement and rural–urban disparities.

I. Background

In California more than half of the state’s children and a third of all adults rely on Medi-Cal for essential dental care.

California’s Medi-Cal dental program has historically reimbursed providers at rates widely considered among the lowest in the nation.³ For decades, low reimbursement levels constrained provider participation and limited patient access, particularly in underserved communities.

In 2016, California voters approved Proposition 56, the California Healthcare, Research and Prevention Tobacco Tax Act of 2016.¹ The measure increased tobacco taxes and directed revenue toward Medi-Cal provider supplemental payments, including dental services.¹ Following implementation, dental reimbursement rates increased approximately 30–40% above base Schedule of Maximum Allowances (“SMA”) levels administered by the California Department of Health Care Services (“DHCS”).³ ⁴

These increases were associated with expanded provider participation and improved beneficiary utilization.⁵

II. Fiscal Impact of Eliminating Supplemental Payments

A. State and Federal Funding Reductions

Medicaid operates as a federal–state partnership in which qualifying state expenditures are matched by federal funds pursuant to the Federal Medical Assistance Percentage (FMAP).⁶ Thus, reductions in state spending proportionally reduce federal matching funds.

If Proposition 56 supplemental dental payments are eliminated:

• Approximately $500 million annually in state funding would be removed.²

• When federal matching funds are included, the total reduction would approach $850–900 million per year.²

Because federal matching is contingent on state expenditures, the elimination of supplemental payments produces a multiplier contraction in overall program funding.⁶

III. Reimbursement Effects: Tooth Filling Example

To illustrate provider-level financial impact, consider a routine restorative procedure such as the replacement of a posterior composite filling.

According to DHCS Schedule of Maximum Allowances data:³

• Base Medi-Cal reimbursement (pre-Prop 56): approximately $35–$45.³

• With Proposition 56 supplemental payments: approximately $50–$65.⁴

This reflects an increase of roughly $15–$20 per filling, or approximately 30–45% above base reimbursement.

Absent supplemental payments, reimbursement would revert to base levels, resulting in a 30–40% reduction relative to current payment levels.³ ⁴

IV. Practice-Level Revenue Implications

For a dental practice performing twenty Medi-Cal fillings per day, the elimination of supplemental payments would produce:

• Daily revenue losses of approximately $300–$400;

• Monthly revenue losses of $6,000–$8,000;

• Annualized losses exceeding $75,000–$100,000, depending on payer mix.

Because restorative services represent only one segment of a comprehensive dental practice (including examinations, radiographs, prophylaxis, extractions, and crowns), cumulative revenue reductions would be materially greater.³

V. Provider Participation and Market Response

Survey data from the California Dental Association indicate that nearly half (49%) of Medi-Cal dentists would consider leaving the program if reimbursement rates were significantly reduced, and approximately one-third would limit Medi-Cal patient acceptance.⁵

Given fixed overhead costs—staffing, rent, equipment, regulatory compliance—a 30–40% reimbursement contraction on a substantial portion of patient volume may render continued participation financially untenable, particularly for high-Medi-Cal or safety-net practices.

“The rate cuts contemplated by the state are clearly not sustainable for the vast majority of dentists who participate in the Medi-Cal Dental program,” said CDA President Robert Hanlon, DMD, who himself treats Medi-Cal patients in San Diego County. “The rates provided under Prop 56 are by no means a minor add-on; they have been vital to the integrity of the network and access to care. Medi-Cal Dental rates, even with Prop 56, have always fallen far short of their commercial counterparts. This devastating cut will cause a mass exodus of dentists from the program forcing patients into ERs and complicating minor, otherwise treatable, conditions.” ⁵

VI. Rural–Urban Access Disparities

A. Urban Areas

Urban markets benefit from greater dentist density, higher patient volume, and diversified payer mixes. Nevertheless, reimbursement reductions are likely to produce:

• Decreased Medi-Cal participation;⁵

• Longer wait times for routine restorative procedures;

• Caps on Medi-Cal patient intake.

Urban areas may experience strained access, though not necessarily total service collapse.

B. Rural Areas

Rural communities face substantially greater risk. DHCS utilization data demonstrate geographic disparities in provider participation.⁷

Rural practices often rely more heavily on Medi-Cal revenue. A 30–40% reduction in reimbursement for high-volume procedures may:

• Eliminate operating margins;

• Prompt withdrawal from Medi-Cal participation;

• Result in clinic closures.

The likely consequence is the expansion of “dental deserts,” requiring beneficiaries to travel significant distances and increasing delayed treatment, disease progression, and emergency department utilization.

VII. Downstream Health and Fiscal Consequences

Reduced access to routine restorative care may result in:

• Untreated caries progressing to infection;

• Increased need for endodontic therapy or extraction;

• Greater reliance on hospital emergency departments;

• Higher long-term healthcare expenditures.

Although eliminating supplemental payments may produce short-term state budget savings, reduced federal matching funds and increased downstream health costs may offset projected fiscal gains.⁶

VIII. Conclusion

Proposition 56 supplemental funding has played a central role in stabilizing and expanding California’s Medi-Cal dental program.¹ ⁴ Eliminating these payments would reduce provider reimbursement by approximately 30–40%, remove nearly $900 million in combined annual funding, and likely trigger substantial reductions in provider participation.² ⁵

While urban areas would experience access strain, rural communities face disproportionate risk of losing meaningful dental access. Routine restorative procedures such as tooth fillings—essential to preventing disease progression—would become less accessible, with cascading public health consequences.

The elimination of Proposition 56 supplemental dental funding therefore implicates not merely budgetary arithmetic but the structural integrity of California’s safety-net dental system.

Footnotes

1. California Healthcare, Research and Prevention Tobacco Tax Act of 2016, Cal. Prop. 56 (Nov. 8, 2016), https://vig.cdn.sos.ca.gov/2016/general/en/pdf/proposition-56-title-summary-analysis.pdf.

2. Cal. Dep’t of Fin., Governor’s Budget & May Revision 2025–26: Health & Human Services Summary (2025), https://www.ebudget.ca.gov.

3. Cal. Dep’t of Health Care Servs., Medi-Cal Dental Program Schedule of Maximum Allowances (SMA), https://dental.dhcs.ca.gov/MCD_documents/providers/provider_manual_archive/SMA_CDT.

4. Cal. Dep’t of Health Care Servs., Proposition 56 Directed Payment Program Information, https://www.dhcs.ca.gov/services/Pages/Directed-Payments.aspx.

5. Cal. Dental Ass’n, Poll: Nearly Half of Medi-Cal Dentists Said They Would Disenroll if Rate Cuts Take Effect; 1 in 3 Would See Fewer Medi-Cal Members (2024), https://www.cda.org/newsroom/access-to-care/poll-nearly-half-of-medi-cal-dentists-said-they-would-disenroll-if-medi-cal-rate-cuts-take-effect-1-in-3-said-they-would-see-fewer-medi-cal-members/.

6. Legislative Analyst’s Off., Overview of Medi-Cal Financing and Federal Matching Funds (2023), https://lao.ca.gov/Publications/Report/4565; see also Medicaid & CHIP Payment & Access Comm’n (MACPAC), Medicaid Financing Overview, https://www.macpac.gov/subtopic/medicaid-financing/.

7. Cal. Dep’t of Health Care Servs., Medi-Cal Dental Annual Reports & Utilization Data, https://www.dhcs.ca.gov/services/Pages/Dental.aspx.

AI Disclosure:  This post was written with the assistance of an AI language model. The human author provided the topic and key points, verified the information, and performed all final editing. The AI (ChatGPT) helped expand on the details and refine the writing. The final content was reviewed and edited by a human to ensure accuracy and quality.