Delaware - Home Modification Service — Licensing, Medicaid Enrollment and Startup Requirements

Last reviewed: 2026-08-16

Home Modification Services in Delaware (often termed Environmental Accessibility Adaptations) provide assessed, permitted, and inspected structural changes that make an existing home usable and safe for Medicaid waiver participants. These services are primarily administered through the Delaware Lifespan Waiver and the Diamond State Health Plan-Plus (DSHP-Plus) managed care program, allowing individuals with physical disabilities or age-related mobility challenges to remain in their communities.

The single biggest structural barrier to entry is that Delaware does not issue a distinct health or facility license for this service; instead, applicants are blocked from Medicaid enrollment unless they first secure a standard Delaware Contractor License from the Division of Revenue and successfully navigate network credentialing. For DSHP-Plus, this means securing a contract with one of Delaware's Medicaid Managed Care Organizations (MCOs), which can restrict enrollment if they determine their provider networks are already adequate.

1. Service Definition and Scope

In Delaware, Home Modification Services encompass physical adaptations to a participant's private residence that are necessary to ensure their health, welfare, and safety, or to enable greater independence. The service requires that all modifications be pre-assessed by a qualified professional, permitted by local authorities, and inspected upon completion.

The scope of allowable work is strictly limited to functional accessibility. It does not cover general home maintenance, cosmetic improvements, or modifications that add total square footage to the home.

• Covered Adaptations: Installation of wheelchair ramps, grab bars, stair lifts, widened doorways, and roll-in showers.
• Excluded Services: Roof repair, central air conditioning installation, cosmetic upgrades, and general home maintenance.
• Waiver Authorities: Services are funded under the Delaware Lifespan Waiver (1915(c)) and Diamond State Health Plan-Plus (1115 demonstration).
• Code Compliance: All structural changes must comply with the Americans with Disabilities Act (ADA) guidelines and local municipal building codes.
• Pre-Assessment Requirement: Modifications typically require a prior environmental accessibility assessment conducted by an occupational therapist or waiver care coordinator.

2. Regulatory and Oversight Agencies

Because home modification is a construction-based service, oversight is divided between state health agencies that manage the Medicaid waivers and the state revenue department that licenses commercial contractors. There is no single Department of Health facility license for this provider type.

Providers must interact with the waiver operating divisions for authorization and the Medicaid portal for claims processing.

• Delaware Division of Developmental Disabilities Services (DDDS): Operates the Lifespan Waiver and authorizes HCBS providers (https://dhss.delaware.gov/ddds/).
• Delaware Division of Medicaid and Medical Assistance (DMMA): Oversees the Medicaid state plan and the DSHP-Plus managed care program (https://dhss.delaware.gov/dmma/).
• Delaware Division of Revenue: Issues the mandatory Delaware Resident or Non-Resident Contractor License (https://revenue.delaware.gov/).
• Delaware Medical Assistance Portal (DMAP): The state MMIS portal for provider enrollment and fee-for-service claims (https://medicaid.dhss.delaware.gov/provider).
• Managed Care Organizations (MCOs): Highmark Health Options, AmeriHealth Caritas Delaware, and Delaware First Health manage the DSHP-Plus networks and authorize specific projects.

3. Gatekeeping Prerequisites: Who Can Even Apply

Delaware does not require a Certificate of Need (CON) or Facility Need Review for home modification providers. However, strict structural prerequisites block applicants from enrolling in Medicaid if they do not already possess commercial construction credentials and managed care contracts.

An applicant cannot simply enroll as a Medicaid provider; they must first pass the state's contractor licensing requirements and secure authorization from the specific waiver operating entity.

• Contractor Licensure: Applicants must hold an active Delaware Resident or Non-Resident Contractor License from the Division of Revenue before any Medicaid application is accepted.
• MCO Network Contracting: For DSHP-Plus, providers must successfully contract with at least one of Delaware's three Medicaid MCOs; closed networks may block entry if the MCO determines network adequacy is met.
• DDDS Open Enrollment: For the Lifespan Waiver, DDDS accepts provider applications on an open and continuous basis without a restrictive RFP or moratorium.
• Business Registration: The entity must be legally registered and in good standing with the Delaware Division of Corporations.
• NPI Requirement: Providers must obtain a Type 2 National Provider Identifier (NPI) from the NPPES registry prior to initiating DMAP enrollment.

4. Licensure and Certification Requirements

Delaware does not issue a specific Home Modification Provider License through its health department. Instead, the state relies on standard commercial contractor licensing combined with Medicaid HCBS certification.

Providers must ensure that all structural work is permitted and inspected by the local county or municipal building department where the participant resides.

• Contractor License: Must obtain and maintain a contractor license issued by the Delaware Division of Revenue (Form CRA).
• Local Building Permits: Providers are required to pull municipal or county building permits (e.g., New Castle, Kent, or Sussex County) for any structural changes.
• Liability Insurance: Must carry general liability and product liability insurance, typically requiring a minimum of $1 million per occurrence.
• DDDS Authorization: Lifespan Waiver providers must submit the DDDS Provider Application and pass the Phase 1A/1B review process to become an Authorized Provider.
• Tax Clearance: Must maintain good standing and tax clearance with the Delaware Division of Revenue to remain an active Medicaid provider.

5. Medicaid Provider Enrollment

Enrollment is processed through the Delaware Medical Assistance Program (DMAP) Provider Portal. Providers must enroll under the specific HCBS Waiver Provider type for Environmental Accessibility Adaptations.

The enrollment process includes a risk-based screening, and providers must use their Application Tracking Number (ATN) to monitor their status.

• Portal Access: Applications are submitted electronically via the Delaware Medical Assistance Portal for Providers (https://medicaid.dhss.delaware.gov/provider).
• Application Fee: Providers are subject to the ACA Medicaid provider application fee (approximately $732) unless they provide proof of payment to Medicare or another state's Medicaid program.
• Provider Specialty: Must select the HCBS Waiver Provider taxonomy and specialty codes specific to home modifications.
• Risk Screening: Subject to DMAP's risk-based screening requirements, which may include site visits for moderate or high-risk categories.
• W-9 Submission: A completed IRS W-9 form signed within the last six months must be uploaded with the application.

6. Staffing, Training and Background Checks

While construction crews do not require clinical medical training, any staff member or subcontractor entering a Medicaid participant's home must clear strict Delaware background check laws.

The enrolled provider agency is ultimately responsible for ensuring that all laborers, project managers, and subcontractors meet these safety and registry clearance standards.

• Criminal Background Check: Required for all client-facing staff in accordance with 11 Del. C. Sections 8563 and 8564.
• Abuse Registry Screening: All workers must be screened against the Delaware Child Protection Registry and the Adult Abuse Registry, with no adverse findings.
• Service Letters: Providers must obtain service letters from previous employers for new hires in accordance with 19 Del. C. Section 708.
• Mandatory Training: Staff must complete DDDS or MCO-mandated training on HIPAA, incident reporting, and participant rights within 90 days of enrollment.
• Subcontractor Compliance: The primary enrolled contractor must maintain documentation proving that all subcontracted tradesmen (plumbers, electricians) have passed the same background checks.

7. Documentation, Policies and Records

Providers must maintain a comprehensive policy manual that aligns with the DDDS Provider Application Manual standards and DMMA recordkeeping rules.

Because reimbursement is tied to project completion, meticulous documentation of the bidding process, materials used, and final inspections is required.

• Project Intake Protocols: Documented procedures for receiving referrals, conducting site visits, and providing itemized estimates.
• Bidding Documentation: Must retain copies of the competitive bids submitted to the waiver care coordinator or MCO.
• Completion Verification: Must secure signed sign-off forms from the participant and the care coordinator confirming the work meets the approved scope.
• Photographic Evidence: Required retention of before and after photos of the structural modifications to prove completion.
• Record Retention: Delaware Medicaid requires all financial, bidding, and service records be retained for a minimum of 5 years.

8. Billing, Rates and Claims

Home modifications are reimbursed on a milestone or project-completion basis rather than an hourly rate. The reimbursement amount is determined through a competitive bidding process.

Claims cannot be submitted until the work is fully completed, inspected, and signed off by the participant and care coordinator.

• Billing Codes: Services are typically billed using HCPCS code S5165 (Home modifications; per service).
• Competitive Bidding: Reimbursement is based on the accepted bid amount; the state or MCO usually requires 2 to 3 competitive bids per project.
• Prior Authorization: 100 percent of home modification services require prior authorization (PA) from the MCO or DDDS before any work begins.
• Funding Caps: The Lifespan Waiver and DSHP-Plus impose lifetime or annual monetary caps per participant (historically ranging up to $14,000 depending on the waiver).
• Claim Submission: Electronic claims are submitted via the DMAP Provider Portal for fee-for-service or through the respective MCO's clearinghouse for DSHP-Plus.

9. Approval Sequence and Timeline

The end-to-end process from business formation to billing the first claim involves multiple state agencies and can take several months to complete.

Providers must sequence their applications correctly, as Medicaid enrollment cannot begin without the underlying contractor license.

• Step 1: Obtain a Delaware Business License and Contractor License from the Division of Revenue (typically 2 to 4 weeks).
• Step 2: Submit the DDDS Provider Application for the Lifespan Waiver (typically 4 to 8 weeks for Phase 1A/1B review).
• Step 3: Complete DMAP Provider Enrollment via the portal using the approved DDDS status or MCO intent (typically 30 to 60 days).
• Step 4: Apply for MCO credentialing for DSHP-Plus (can take 90 to 120 days, contingent on open networks).
• Step 5: Receive participant referrals, submit competitive bids, and obtain Prior Authorization before commencing work (2 to 4 weeks per project).

10. Common Denials and Survey Findings

Applications and claims are frequently delayed or denied due to administrative errors, lack of proper licensure, or failure to follow the strict prior authorization process.

Auditors closely monitor background check compliance and permit documentation during desk reviews.

• Missing Contractor License: DMAP applications are immediately rejected if the Delaware Division of Revenue contractor license is not attached.
• Unauthorized Work: Claims are denied if construction commences before the official Prior Authorization is issued by the MCO or DDDS.
• Background Check Failures: Providers face sanctions or disenrollment for failing to maintain proof of Adult and Child Abuse Registry checks for all on-site workers.
• Incomplete Bids: Bids are rejected by care coordinators if they lack itemized material and labor breakdowns or fail to detail ADA compliance.
• Permit Violations: Failure to pull local municipal building permits results in failed final inspections, rendering the project ineligible for Medicaid payment.

11. Key Contacts and Resources

Prospective providers should utilize these official state resources and managed care contacts to navigate the enrollment and bidding process.

Always refer to the most current DDDS Provider Application Manual and DMAP provider bulletins for updated regulations.

• Delaware Division of Developmental Disabilities Services (DDDS): Waiver operating agency for Lifespan Waiver (https://dhss.delaware.gov/ddds/).
• Delaware Medical Assistance Portal (DMAP): MMIS portal for enrollment and claims (https://medicaid.dhss.delaware.gov/provider).
• Delaware Division of Revenue: Agency issuing the mandatory Contractor License (https://revenue.delaware.gov/).
• Highmark Health Options: DSHP-Plus Managed Care Organization (https://www.highmarkhealthoptions.com/).
• AmeriHealth Caritas Delaware: DSHP-Plus Managed Care Organization (https://www.amerihealthcaritasde.com/).

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