Home/Case Studies/Dental Medicaid AR Turnaround
14-location DSO · Mid-Atlantic · Medicaid pediatric mix · 9 months

Days in AR from 73 to 42. $1.7M of aged dental AR recovered.

A pediatric-heavy dental service organization was carrying $2.7M of over-90-day AR across three Medicaid dental carve-out models. CDT edit layer installed, carve-out routing corrected, 39 enrollment gaps closed, every EOB reconciled to the ledger, and $317K of recoupment demands overturned.

Setting
Dental DSO
Locations
14
Region
Mid-Atlantic
Rendering providers
58
Medicaid mix
68%
Engagement
9 months

Result snapshotThe four numbers that moved.

Days in AR
73 → 42
ON $34M NET COLLECTIONS
Aged AR recovered
$1.7M
FROM $2.7M OVER-90 POOL
Over-90 share of AR
40% → 13%
$2.7M → $0.5M IN BUCKET
Clean claim rate
82% → 96%
CDT EDIT LAYER · FIRST PASS

The aging melt curve9 months. $6.8M to $3.9M.

$6M $4M $2M $0 $6.8M $3.9M OVER-90 · $2.7M $0.5M M0 M2 M4 M6 M8 M9 TOTAL AR (BLUE) · OVER-90-DAY AR (RED) · MONTH-END BALANCES

Resolution of the $2.7M over-90 pool: $1.7M collected, $0.6M documented and written off as validated uncollectable, $0.4M still in active follow-up at month 9. The three figures tie to the pool exactly.

The situationThree defects. One aging report. Nobody owned the routing.

BASELINE $6.8M total AR · 40% over 90 days · 18.9% Medicaid denial rate · 39 enrollment gaps across 14 locations.
Defect 01 · CDT integrity

Frequency limits and missing tooth detail.

DENIED $ SHARE
48%
CDT EDITS LIVE
0
Defect 02 · Carve-out routing

Claims sent to the wrong payer entity.

MISROUTED
11%
CARVE-OUT MODELS
3
Defect 03 · Credentialing

Providers billing from unenrolled locations.

GAPS
39/178
HELD CLAIMS
$486K

The structural context matters. Dental services are a mandatory Medicaid benefit for enrollees under 21 through EPSDT, and more than 37 million children are enrolled in Medicaid and CHIP nationally, so a pediatric-heavy DSO lives or dies on how well it runs the Medicaid dental rail. In the mid-Atlantic that rail is fragmented: Maryland administers dental through the Healthy Smiles Dental Program with a single statewide administrator, Virginia runs Smiles For Children through one dental benefits administrator under DMAS, and other states delegate dental to plan-contracted dental benefit managers. Each model has its own payer ID, portal, filing clock, and audit unit.

The fix · payer routingOne routing gate. Three carve-out models. Zero guesswork.

RULE Every claim carries a verified plan-of-record before it ships. The member card is never trusted as the payer of record.
14 LOCATIONS 58 rendering providers 68% MEDICAID CHARGES ROUTING GATE Eligibility + plan-of-record check per date of service CDT EDIT LAYER IN FRONT MODEL A · SINGLE-ASO CARVE-OUT One statewide dental administrator MARYLAND HEALTHY SMILES PATTERN MODEL B · SINGLE DBA STATEWIDE One dental benefits administrator VIRGINIA SMILES FOR CHILDREN PATTERN MODEL C · MCO-DELEGATED DBMs Plan-specific dental benefit managers PAYER ID + FILING CLOCK PER PLAN BASELINE MISROUTING 11% of Medicaid claims to wrong entity $348K RECOVERED AFTER RE-ROUTING

At baseline, 11 percent of Medicaid dental claims were going to the wrong entity, mostly claims billed to the medical MCO when the dental benefit sat with a carve-out administrator. Those claims did not deny cleanly. They pended, aged past the carve-out's own filing clock, and died quietly. Re-routing and refiling the salvageable inventory recovered $348K.

EOB-to-ledger reconciliationEvery 835 and paper EOB. Matched to the ledger line.

GREEN
Paid equals posted
AMBER
Variance under review
RED
Underpayment confirmed
Recon queue · variance by location · live refreshed 31s ago
Location 02Cause: DBM paid, never posted · aged 12d
$18.4K
46%
Location 03Cause: Underposted bulk check · aged 34d
$41.2K
82%
Location 05Cause: Paper EOB unmatched · aged 9d
$7.9K
38%
Location 07Cause: Fee schedule underpayment · aged 51d
$38.6K
95%
Location 09Cause: Takeback netted in remit · aged 28d
$22.7K
74%
Location 11Cause: 835 posted to wrong location · aged 8d
$12.3K
35%
Location 12Cause: Patient-share misapplied · aged 22d
$9.8K
66%
Location 14Cause: Interest payment unposted · aged 6d
$3.1K
24%
$295K of collectible variance surfaced and recovered · engagement total
Engagement ScorecardQuarterly partner report · Q2 redacted
CONFIDENTIAL

KPI movement before vs current.

Days in AR
73
42
Total AR
$6.8M
$3.9M
Over-90 share of AR
40%
13%
Medicaid denial rate
18.9%
6.4%
Clean claim rate · first pass
82%
96%
Enrollment gaps open
39
0
Q2 · 2026 ASP-RCM Senior Partner

CDT denial taxonomyWhere the denied dollars actually sat.

TAKEAWAY Six root causes covered 100% of denied Medicaid dollars. Two of them, CDT limitations and enrollment, carried 53%.
ROOT CAUSE TYPICAL CDT FAMILIES DENIED $ SHARE FIX INSTALLED
Frequency / limitation exceededD0120 · D1120 · D1206 · D027231%State-specific frequency table in the edit layer, checked per member history
Rendering provider not enrolled at locationAll families22%178-record enrollment grid, 39 gaps closed, revalidation calendar per 42 CFR 455.414
Missing tooth / surface / quadrant detailD2391 · D2930 · D714017%Hard-stop edit: restorative and surgical codes cannot ship without anatomic detail
EPSDT periodicity / eligibility lapseD0150 · D135114%Eligibility re-check at date of service, periodicity schedule mapped per state program
Coordination of benefitsAll families9%Primary dental coverage discovery run before Medicaid submission
Prior authorization missingD8080 · oral surgery7%Auth-required code list per carve-out, gated at scheduling
TOTAL DENIED MEDICAID DOLLARS · BASELINE100%DENIAL RATE 18.9% → 6.4%

CDT is maintained by the American Dental Association and a new version takes effect every January 1, so the edit layer is rebuilt annually against the new code set and each state program's coverage updates.

Per-location credentialing178 enrollment records. 39 gaps closed. $486K released.

Under 42 CFR 455.410 every rendering provider must be screened and enrolled with the state Medicaid program, and the enrollment is validated against the service location on the claim. The grid below shows enrollment records in good standing per location, baseline in red, after the 120-day closure sprint in green.

LOC 01
10/13
13/13
LOC 02
11/13
13/13
LOC 03
9/15
15/15
LOC 04
10/12
12/12
LOC 05
10/13
13/13
LOC 06
10/12
12/12
LOC 07
9/14
14/14
LOC 08
10/13
13/13
LOC 09
10/14
14/14
LOC 10
11/12
12/12
LOC 11
10/13
13/13
LOC 12
8/12
12/12
LOC 13
10/11
11/11
LOC 14
11/11
11/11
BASELINE 139/178 IN GOOD STANDING · 39 GAPS · ALL CLOSED IN 120 DAYS · REVALIDATION CALENDAR LIVE PER 42 CFR 455.414

Recoupment defense$412K demanded. $317K kept.

States are required to operate Medicaid Recovery Audit Contractor programs under section 6411 of the Affordable Care Act, and dental benefit managers layer their own post-pay utilization audits on top. During the engagement the DSO received two post-pay audit demands totaling $412K, centered on radiograph frequency and stainless steel crown documentation.

Demand resolution · $412K total
Overturned or reduced on reconsideration$317K · 77%
Validly owed and repaid$95K · 23%

The defense file for every audited line: the radiograph or clinical note, the CDT descriptor in force on the date of service, the EOB proving what was actually paid, and the ledger line proving what was posted. Lines the record could not support were conceded early, which bought credibility on the lines that mattered.

Standing defense posture
Every paid claim is audit-ready on day one.
DOCUMENTATION INDEXED AT SUBMISSION · NOT AT DEMAND
The 90-Day Plan

How the $1.7M came back.

  • Days 1-30 · Baseline and routing. Full AR inventory tagged by root cause. Carve-out plan-of-record map built for every state and plan. Misrouted inventory identified and refiling started.
  • Days 31-60 · CDT edit layer and enrollment sprint. Frequency, age, and anatomic-detail edits live in front of submission. All 39 enrollment gaps in application, tracked per location.
  • Days 61-90 · Reconciliation and appeals. EOB-to-ledger match running on every remit. Underpayment and takeback variances worked. Recoupment reconsiderations filed with full documentation.
  • Months 4-9 · Sustained. Days in AR held at 42. Over-90 share down to 13 percent. $1.7M collected from the aged pool, $317K of recoupment demands overturned, zero open enrollment gaps.
DAYS IN AR · MONTHLY M0 M9 42d 73d
ASP-RCM · Senior partner team Days in AR · month-end

We thought our problem was slow payers. It was our own routing, our own enrollment gaps, and claims we never reconciled after posting. Once every claim knew where it was supposed to go and who was allowed to bill it, the aging report fixed itself.

CFO · dental service organization

State changeHow the AR desk actually looked.

BEFORE

73 days in AR · $2.7M over 90

  • Member card trusted as payer of record
  • No CDT frequency or anatomic-detail edits
  • 39 provider-location enrollment gaps
  • EOBs posted, never reconciled to ledger
  • Recoupment demands paid without appeal
AFTER

42 days in AR · $0.5M over 90

  • Plan-of-record verified per date of service
  • CDT edit layer, rebuilt every January
  • Zero gaps, revalidation calendar live
  • Every 835 and paper EOB matched to ledger
  • 77% of recoupment dollars defended

OutcomesBefore. After. In numbers.

Pre-engagement · baseline
Days in AR
73
Total AR
$6.8M
Over-90 share
40%
Medicaid denial rate
18.9%
$2.7M sitting past 90 days
Steady-state · month 9
Days in AR
42
Total AR
$3.9M
Over-90 share
13%
Medicaid denial rate
6.4%
$1.7M collected from the aged pool

Common questionsFrequently asked: dental Medicaid AR.

Why is Medicaid dental AR different from medical AR?
Three structural reasons. First, in many states the dental benefit is carved out of medical managed care and administered by a separate dental program or dental benefit manager, so the payer of record is not the health plan on the member card. Second, dental claims ride the CDT code set, which the American Dental Association maintains and updates every year, with frequency and age limitations that differ by state Medicaid program. Third, EPSDT makes dental a mandatory benefit for Medicaid enrollees under 21, which brings periodicity schedules and program-integrity review that adult commercial dental never sees. AR follow-up that treats a Medicaid dental claim like a medical claim stalls on all three.
What is a Medicaid dental carve-out?
A state decision to administer the dental benefit outside the medical managed-care contract. The models vary. Maryland runs the Healthy Smiles Dental Program through a single statewide dental administrator. Virginia runs Smiles For Children through a single dental benefits administrator under DMAS. Other states delegate dental to plan-contracted dental benefit managers, each with its own payer ID, portal, timely-filing clock, and audit unit. A multi-state DSO can face all three models at once, and a claim routed to the wrong entity ages silently.
How does CDT coding integrity drive denials?
Most preventive pediatric CDT codes carry frequency and age limitations in state Medicaid programs, and several restorative and surgical codes require tooth number, surface, or quadrant detail on the claim. When the practice management system defaults are wrong, the same defect repeats on thousands of claims. At this DSO, frequency and limitation denials plus missing tooth or surface detail together drove 48 percent of denied Medicaid dollars at baseline. The fix is a CDT edit layer in front of submission, refreshed every January when the new CDT version takes effect.
How did per-location credentialing move cash?
Federal rule 42 CFR 455.410 requires all rendering providers to be screened and enrolled with the state Medicaid program, and enrollment is tied to the service location on the claim. Across 14 locations this DSO needed 178 provider-location-program enrollment records. 39 of them, about 22 percent, were missing or lapsed, so claims from those chairs denied or pended on enrollment. Closing all 39 inside 120 days and building a revalidation calendar per 42 CFR 455.414 released $486K of held claims.
How does recoupment defense work?
States are required to run Medicaid Recovery Audit Contractor programs under section 6411 of the Affordable Care Act, and dental benefit managers run their own post-pay utilization audits on top. The defense is documentation discipline: radiographs and clinical notes matched to each audited CDT line, EOB-to-ledger proof of what was actually paid, and a formal reconsideration on every demand that the record supports. This DSO faced $412K in post-pay recoupment demands. $317K, or 77 percent, was overturned or reduced on appeal. $95K was validly owed and repaid.
Why anonymize the client?
The master service agreement includes reciprocal confidentiality. The numbers and timeline are real. A senior partner can walk you through methodology and host a reference call under NDA once both sides agree.
What does the free audit look like for a dental group?
Send 90 days of denial data with reason codes, your AR aging by location and payer, your provider roster with Medicaid enrollment IDs by location, and 60 days of EOBs or 835 files. Inside 30 days you receive a 4-page written audit covering denial taxonomy by CDT family, carve-out routing accuracy, enrollment gaps by location, recoverable aged AR in dollars, and a 90-day fix plan.
Industry sources cited on this page

Want the same audit applied to your dental AR?

A free 30-day audit. Send 90 days of denial data, your AR aging by location and payer, your provider roster with Medicaid enrollment IDs, and 60 days of EOBs or 835 files. We return a 4-page written audit covering denial taxonomy by CDT family, carve-out routing accuracy, enrollment gaps, recoverable aged AR in dollars, and a 90-day fix plan. Yours to keep. No SDR follow-up.