Policy Center

Prepare Now For 2028 Secret Shoppers: States lean on mobile healthcare to realize network adequacy

Written by Mollie Williams, DrPH, MPH | Feb 17, 2026 4:19:30 PM

Key Points

• July 2028 enforcement creates a compliance obligation that most current Medicaid 
programs cannot meet. CMS secret shopper surveys will measure actual 
appointment availability, not directory listings. Results will be public.

• Provider recruitment cannot close rural access gaps where providers do not 
exist. 31 of 35 physician specialties face shortages; 432 rural hospitals are 
vulnerable to closure.

• Mobile health programs solve the provider distribution problem. One provider 
serves rotating community sites, closing access gaps across multiple counties.

The Compliance Problem

Beginning July 1, 2028, CMS will enforce Medicaid managed care network adequacy through
independent secret shopper surveys (42 CFR 438.68, as amended by CMS2439-F). The rule
requires states to verify actual appointment availability: 15 business days for primary care;
10 business days for behavioral health. Results will be posted publicly by MCO and geography.

Virginia conducted secret shopper testing for prenatal care in 2023. MCOs reported full 
directory compliance. Actual results: 13 of 1,844 calls (0.7%) resulted in appointments 
within state standards. 46.3% of listed providers did not offer the services they were 
listed for. This gap between reported compliance and actual access exists in managed 
care networks nationwide.

The structural problem compounds the directory accuracy issue. The Chartis Center for 
Rural Health reports 46% of rural hospitals operate at negative margins. 432 are 
vulnerable to closure. 116 labor and delivery units have closed since 2020. In many rural
service areas, the provider workforce required for network adequacy simply does not 
exist.

POLICY BRIEF

Alternative Access Standards will not provide relief under the new enforcement 
framework. Under the 2024 rule, AAS requests become documented failures. When 
MCOs request waivers for rural areas, and states grant them, but that documentation 
becomes public evidence that managed care networks cannot meet federal access 
standards.

Why Traditional Network Strategies Will Not Solve This

State-managed care contracts have relied on three primary approaches to address 
network gaps: provider recruitment, telehealth expansion, and rate increases. Each has 
structural limitations that prevent compliance in areas with workforce shortages.

Provider Recruitment

Recruitment assumes providers can be attracted to underserved areas. In markets with 
structural workforce shortages, there is no provider pool from which to recruit. HRSA 
designates 65 million Americans as living in primary care Health Professional Shortage Areas.
The shortage is not temporary; it reflects permanent features of rural healthcare economics.

Telehealth Expansion

Telehealth extends access for consultations but cannot perform physical examinations, 
administer vaccines, draw blood, conduct screenings, or provide urgent care. For 
services requiring in-person contact, telehealth documents access failure rather than 
solving it.

Rate Increases

Higher rates incentivize existing providers to see more Medicaid patients, but do not 
create providers where none practice. Rate increases in a county with two primary care 
physicians cannot produce a third physician.

What Mobile Healthcare Infrastructure Solves

Mobile health programs operate on a different logic than facility-based care. Rather than 
recruiting providers to underserved areas, a network of mobile clinics extends the 
geographic reach of providers who already exist elsewhere.

A physician or advanced practice provider based at a regional FQHC or hospital can 
serve rotating community sites across multiple counties via a mobile unit. This produces 
appointment availability in locations that cannot independently sustain fixed 
infrastructure. The same provider who is unavailable for recruitment becomes available 
for extension.

For network adequacy purposes, the relevant question is whether a Medicaid enrollee in 
a rural county can obtain an appointment within federal time standards. Mobile clinic 
networks produce appointment availability without requiring a permanent provider 
presence in every service area.

The Solution: MCO Contract Requirements

The most direct implementation pathway is through managed care contract 
amendments. States can require MCOs to include mobile healthcare capacity as part of 
network adequacy demonstrations for designated service areas without requiring a 
State Plan Amendment. Consider adding the following language:

Network Adequacy: For service areas designated as Health Professional Shortage
Areas or Rural Health Priority Areas, the Contractor may demonstrate compliance with 
appointment availability standards through one or more of the following mechanisms: (a) 
contracted fixed-site providers meeting time and distance standards; (b) contracted 
mobile clinic networks with published schedules providing service within the designated 
area at intervals sufficient to meet appointment wait time standards; (c) telehealth 
arrangements for services appropriate to virtual delivery.

Mobile Healthcare Provider Standards: Mobile health programs qualifying as a network 
adequacy mechanisms must: (i) operate under the license of an enrolled Medicaid 
provider; (ii) maintain published service schedules with community site locations and 
hours; (iii) provide services consistent with the scope of the sponsoring provider;
(iv) submit encounter data using Place of Service code 15 (mobile unit); (v) meet all 
applicable state licensure and vehicle safety requirements.

Documentation Requirements: Contractor shall report the mobile healthcare network 
capacity annually, including: service area coverage maps; published schedules by 
location; utilization data by site, and appointment availability testing results for mobile 
sites using the same methodology applied to fixed sites.

Regulatory Pathway
What Requires CMS Approval

• State Plan Amendment: Required only if creating a distinct mobile provider type 
with a different reimbursement methodology or if establishing a mobile-specific rate 
enhancements.

• Directed Payment Preprint: Required if mandating MCOs pay enhanced rates to 
mobile providers specifically. Must demonstrate value-based connection.

• Managed Care Contract Amendment: Requires CMS review if a material change to 
network adequacy standards. Recognizing mobile clinics as a qualifying 
mechanism is generally within state discretion under 42 CFR 438.68.
What Does Not Require CMS Approval

• Clarifying that mobile units operating under existing enrolled providers count 
toward network adequacy (operational guidance)

• Requiring MCOs to include mobile healthcare in network development plans as a 
condition of contract compliance

• Allocating RHTP infrastructure funds for mobile clinic capacity building
Timeline

Q1 - Q2 2026 Issue guidance to MCOs clarifying mobile clinic networks as
a qualifying network adequacy mechanism. Identify priority service 
areas based on current access gaps and AAS request history.

Q3 - Q4 2026 Draft MCO contract amendments for 2027 renewal cycle. 
Coordinate with RHTP implementation planning for infrastructure 
funding.

2027 Execute MCO contract amendments effective with renewal. Mobile 
healthcare infrastructure deployment begins. Establish 
documentation and reporting requirements.

Q1 - Q2 2028 Verify mobile network capacity in advance of July enforcement. 
Conduct internal secret shopper testing. Address gaps before 
CMS surveys begin.

July 2028 CMS enforcement begins. States with established mobile
healthcare infrastructure demonstrates compliance.



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