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Top Audit Defense providers.

22 ranked firms · How we rank
01
Health Care Service Corporation
FOUNDED 1936 · LISTED · 500+ EMPLOYEES

Insurance experts for autism services

HEADQUARTERS
Chicago, IL
TEAM
500+ employees
RATING
No reviews
02
Optum
FOUNDED 2011 · LISTED · 500+ EMPLOYEES

Compassionate care from certified clinicians

HEADQUARTERS
Eden Prairie, MN
TEAM
500+ employees
RATING
No reviews
03
Magellan Health
FOUNDED 1969 · LISTED · 500+ EMPLOYEES

Quality ABA therapy delivered at home

HEADQUARTERS
Phoenix, AZ
TEAM
500+ employees
RATING
No reviews
04
Payer Compass
LISTED
HEADQUARTERS
RATING
No reviews
05
McKesson
LISTED
HEADQUARTERS
RATING
No reviews
06
Cognizant
LISTED
HEADQUARTERS
RATING
No reviews
07
The Panthers Group
LISTED
HEADQUARTERS
RATING
No reviews
08
Conduent
LISTED
HEADQUARTERS
RATING
No reviews
09
Medicaid.gov
LISTED
HEADQUARTERS
RATING
No reviews
10
Cotiviti
LISTED
HEADQUARTERS
RATING
No reviews
11
LexisNexis Risk Solutions
LISTED
HEADQUARTERS
RATING
No reviews
12
Invensis
LISTED
HEADQUARTERS
RATING
No reviews
13
Corporate Investigation Consulting
LISTED
HEADQUARTERS
RATING
No reviews
14
Shaw & Wiar
LISTED
HEADQUARTERS
RATING
No reviews
15
Moss Adams
LISTED
HEADQUARTERS
RATING
No reviews
16
Lighthouse Healthcare Advisors
LISTED
HEADQUARTERS
RATING
No reviews
17
Billing Paradise
LISTED
HEADQUARTERS
RATING
No reviews
18
CloudRCM Solutions
LISTED
HEADQUARTERS
RATING
No reviews
19
Practolytics
LISTED
HEADQUARTERS
RATING
No reviews
20
Firstsource
LISTED
HEADQUARTERS
RATING
No reviews
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§ Subcategory FAQ

The questions buyers ask before shortlisting.

Answered against the same disclosed methodology that powers every ranking on this page.

§FAQ.01

What is ABA Audit Defense?

Audit Defense is a service-vendor subcategory inside the insurance consulting group on ABA Rank. ABA Rank indexes 22 firms that operate in audit defense and ranks each on the same disclosed 100-point Index used across the rest of the services directory — profile completeness, verification, listing tier, and qualified public reviews.

§FAQ.02

How does ABA Rank rank audit defense firms?

Every firm in the Audit Defense subcategory is scored on the same 100-point Index used across the rest of ABA Rank: 50 points from profile completeness (the disclosed inputs specific to audit defense), 20 points from verification, 5 points from listing tier, and 25 points from qualified public reviews. Methodology is fully disclosed at /how-we-rank — there is no sponsored placement and no paid ranking boost.

§FAQ.03

Which audit defense firm ranks #1 on ABA Rank today?

The current #1 in Audit Defense is the top entry on this page; rankings refresh every night so the leader can change between visits. ABA Rank does not endorse a single permanent winner — the public Index recomputes from disclosed inputs (profile completeness, verification, listing tier, and review weight) on a nightly cadence, and any firm that improves its disclosed inputs can move up.

§FAQ.04

How many audit defense firms are listed on ABA Rank?

22 firms are currently ranked under Audit Defense on ABA Rank. The directory is an editorial index of operating U.S. ABA firms; defunct or out-of-market entries are removed.

§FAQ.05

What does Verified mean for audit defense firm on ABA Rank?

Verification on a service vendor means a credential audit specific to the service line — BACB credentials for clinical service partners; business registration and references for non-clinical firms — plus a magic-link claim from a work email at the vendor’s domain. Verified service vendors carry a seal and earn a placement boost; unverified vendors remain ranked but are clearly marked.

§FAQ.06

How much do audit defense firms cost?

Audit Defense pricing varies widely by service line. ABA Rank publishes each vendor’s disclosed pricing model and pricing band on its profile when provided — there is no paid placement and no hidden referral commission. For deeper procurement work, /post-a-project routes a brief to three to seven matched vendors with disclosed pricing comparable side by side.

§FAQ.07

How does ABA Rank decide which firms qualify for Audit Defense?

Subcategory assignment is editorial, not self-selected. The ABA Rank editorial team reviews each firm’s public website, primary service lines, and (where applicable) credential records, then assigns the most specific subcategory that matches what the firm actually does. firms that span multiple subcategories appear in each one rather than being forced into a single bucket.

§FAQ.08

How can a firm get listed in Audit Defense?

Any owner or authorized representative of an eligible firm can claim a free listing. Claimed profiles unlock the editable fields that drive the Index, and Verified ($400/yr) and Sponsor ($1,200/yr) tiers are optional paid upgrades disclosed in the methodology. New firms that are not yet on ABA Rank can be submitted at /suggest-vendor; submissions are reviewed weekly and approved listings typically appear within seven to ten days.