How MatchLogic Cut Patient Record Duplicates by 89% and Recovered $1.2M in Denied Claims

Camber replaced its exact-match SQL layer with MatchLogic's real-time matching API, keeping patient identities intact across 100,000+ patients, 40 states, and dozens of EHR systems.

89%

Reduction in duplicate patient records

$1.2M

Recovered annual revenue from denied claims

<200ms

API response time at peak volume

34%

Drop in first-pass claim denials

Camber

Industry
Behavioral health payments

Business Profile
100,000+ patients . 40 states ~75 employees . founded 2021

Company Profile

Camber is a health tech startup headquartered in New York City that streamlines healthcare payments for behavioral health clinics. Founded in 2021 and backed by Y Combinator and Andreessen Horowitz, Camber employs approximately 75 people and manages claims processing for over 100,000 patients across 40 states. The platform focuses on helping pediatric behavioral health clinics, autism centers, and mental health providers get reimbursed faster and more accurately by reducing administrative overhead in eligibility verification, claims submission, and payment reconciliation.

Camber's platform sits between clinics and payers. When a clinic registers a new patient or submits a claim, Camber's engine must instantly verify whether that patient already exists in the system, whether their insurance eligibility is active, and whether the provider is properly credentialed. With patients frequently visiting multiple clinics in the same network, and with data flowing in from dozens of different EHR systems, patient identity is rarely consistent from one intake form to the next.

The Challenge

Camber's engineering team had built a custom SQL-based matching layer to prevent duplicate patient records across their growing network of clinics. The system relied on exact-match criteria, comparing first name, last name, date of birth, and insurance member ID.

The system was breaking down in three critical ways.

Fragmented medical histories

A child with autism visiting Clinic A in January and Clinic B in March would be registered as two separate patients because the parent entered “Jonathon” instead of “Jonathan” or transposed the month and day in the DOB field. Camber's system treated each as a unique record, which meant insurance eligibility checks failed and prior authorization history was lost.

Claims denied due to identity mismatches

When Camber submitted claims to Medicaid or commercial payers, the patient name or DOB on the claim had to match the payer's master file exactly. Even minor variations caused automatic denials. Camber estimated that 8-12% of first-pass claim denials were directly attributable to patient identity mismatches.

We were watching legitimate patients get denied coverage because a front-desk clerk typed 'Michael' instead of 'Micheal' in the intake form. Our SQL engine treated them as completely different people, and the payer rejected the claim. It was costing us and the clinics real money every week.

Sarah Chen

VP of Engineering, Camber

Match accuracy stuck at 71%

The SQL engine couldn't handle name variations, cross-column mismatches, or insurance ID formatting differences. The data team knew they were missing true duplicates while creating false positives that merged unrelated patients, particularly in high-volume zip codes where multiple children shared the same first name and birth month.

The stakes were high. Every missed duplicate meant a fragmented medical record, which affected care continuity for children with behavioral health needs. Every false merge meant two different patients could be mixed up, creating HIPAA compliance risks and incorrect billing. And with Camber's platform processing thousands of new patient registrations weekly, the matching had to happen in real time during intake. Batch processing was not an option. Even a 60-second delay during clinic registration caused front-desk staff to abandon the verification step and proceed with manual entry.

The Solution

Camber evaluated several matching vendors but kept running into the same limitations: legacy desktop tools with bolted-on APIs that couldn't integrate with Camber's Node.js microservices, black-box ML models that couldn't explain why two patient records matched, or string-only engines that choked on insurance ID formatting and address variations.

Why MatchLogic was selected

MatchLogic stood out for four reasons:

  1. Deterministic and reproducible results. Unlike the legacy tool Camber had tested, which produced different match groupings on identical runs, MatchLogic's engine guaranteed the same input always produced the same output. This was critical for HIPAA audit trails and payer dispute resolution.
  2. A modern REST API with sub-second response. MatchLogic's JSON API returned match scores in under 200ms, even when checking against Camber's 1.8 million patient and provider records. The DLL-based alternative they had trialed required Windows servers and couldn't integrate with Camber's Linux-based AWS infrastructure.
  3. Built-in standardization and cross-column matching. The platform recognized “William” and “Bill” as the same person, and could match a first-name-field entry against a last-name-field entry when clinic staff transposed fields during data entry. It also handled insurance ID formatting, normalizing “MEM123456” and “MEM-123-456” into comparable values.
  4. Transparent scoring. Every match returned field-level evidence: name similarity 91%, DOB match 100%, insurance ID correlation 87%, address match 95%. Camber's compliance team could tune thresholds without retraining models, and auditors could see exactly why two records were flagged as duplicates.

Implementation

The rollout took three weeks:

  1. MatchLogic's account manager replicated Camber's existing match definitions in the platform, running both engines in parallel against 180 days of historical patient intake data.
  2. Camber's engineering team integrated the REST API into their clinic onboarding pipeline. The JSON payload carried incoming patient records; the response carried match confidence scores, master patient IDs, and a flag indicating whether the record was a potential duplicate.
  3. The team tuned thresholds and cut over. Camber set Definition 1, exact match on DOB plus insurance ID plus last name, to auto-link. Definition 2, fuzzy name plus exact DOB plus zip code, queued for front-desk review. Definition 3, fuzzy name plus fuzzy DOB, logged for data quality analysis.

Results

89% reduction in duplicate patient records

MatchLogic's fuzzy engine plus multi-criteria definitions caught variations the SQL system missed. In the first 90 days, Camber's platform automatically linked 4,200 new patient registrations to existing master records that would have previously been created as duplicates.

The difference was immediate. In the first month, we stopped creating about 1,400 duplicate patient records that our old system would have missed. That's 1,400 kids whose medical histories stayed intact instead of getting split across two profiles.

Sarah Chen

VP of Engineering, Camber

$1.2M in recovered annual revenue from denied claims

By eliminating patient identity mismatches at the point of intake, Camber reduced first-pass claim denials by 34%. The $1.2M figure represents recovered revenue from resubmitted claims plus prevented denials in the first 12 months.

Sub-200ms API response time

Even at peak volume, 2,400 patient registrations per hour across the clinic network, the MatchLogic API returned match results before Camber's intake form completed its next validation step. No registration latency added.

Camber's matching layer now does its job invisibly: a parent can bring the same child to two clinics in two states, and the platform recognizes them as one patient before the intake form is finished. The engineering team has since extended MatchLogic to provider credentialing records, applying the same match definitions to the other half of the claims equation. For a company whose entire value rests on getting clinics paid, the difference between 71% and near-complete match accuracy turned out to be worth $1.2M a year.

The difference was immediate. In the first month, we stopped creating about 1,400 duplicate patient records that our old system would have missed. That's 1,400 kids whose medical histories stayed intact instead of getting split across two profiles.

Sarah Chen
VP of Engineering, Camber

About MatchLogic

Enterprise-Grade Matching

Founded in 2003, MatchLogic has matched over 2 billion records across 4,500+ enterprise installations, powering production-scale entity resolution pipelines.

Intelligent Data Resolution

MatchLogic combines deterministic and fuzzy matching with visual profiling and drag-and-drop cleansing workflows to identify duplicates and maintain trusted golden records.

Transparent Enterprise Infrastructure

Built for fintech, healthcare, insurance, and government teams, the platform provides REST API integrations, cross-platform deployment, and full auditability across every match operation.