Lassie

San Francisco, CA, United States [4, 5, 9, 16] All United States companies → — Founded 2020 [8, 10, 14, 17, 24]

Practice Management Suite Revenue Cycle / Billing Specialty-Focused AI

Dentistry Family Medicine Internal Medicine

Credentialing & Enrollment Medical Billing & RCM

Series A [1, 2, 3, 4, 5, 6, 8, 9, 12] — $47 million [1, 2, 3, 4, 5, 6, 8, 9, 12]

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Lassie

Credentialing & Enrollment

Lassie automates administrative work for doctor's offices, including enrollments, payment posting, reconciliation, appeals, reporting, and follow-up work for claims. The company states that 98% of posting is handled autonomously.

Usage-based

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About Lassie

Lassie is an AI-first healthcare back-office automation company that develops autonomous systems to manage administrative tasks for small businesses, with an initial focus on dental and medical practices. [1, 3, 15] The company’s AI agents are designed to eliminate time-consuming manual work, such as insurance accounts receivable (AR) reconciliation, explanation of benefits (EOB) posting, payment reconciliation, claims handling, and reporting. [1, 3, 9, 13, 15] By automating these complex and labor-intensive workflows, Lassie aims to free up healthcare providers to focus on patient care, reduce overhead, and accelerate collections. [3, 15, 19]

For physicians, Lassie’s platform offers a solution to the significant administrative burden often experienced in private practices. A typical medical practice can lose over 100 hours per month to administrative work and spend approximately $200,000 annually on staff for these functions. [1, 3] Lassie’s AI agent directly accesses insurance portals, retrieves reimbursement data, reconciles payments against records, updates the practice’s system of record, and verifies funds in the bank. [1, 3, 4, 9] This automation can lead to faster payments, with some practices reporting payments hitting accounts in under a week, and a significant reduction in staff hours dedicated to administrative tasks. [12, 15] The system is built to integrate with existing practice management software, and it flags exceptions for human review when complex issues arise, ensuring that the team remains in control. [8, 13]

Focus Areas

AI-powered administrative automation revenue cycle management insurance claim management practice management dental practice operations digital health healthtech

Business Intelligence

Key Investors	Andreessen Horowitz (a16z), Night Capital, SV Angel, Homebrew, Go Global Ventures, Rahul Vohra (founder of Superhuman), Zach Perret (co-founder of Plaid), Taavet Hinrikus (co-founder of Wise), Gokul Rajaram, Brian Balfour (co-founder of Reforge)
Partnerships	unknown
Acquisitions	unknown
Technology	AI-powered autonomous systems that integrate with existing practice management systems (e.g., Dentrix, Eaglesoft, Open Dental) and banking rails (Plaid, MX).

What Physicians Need to Know

AI-Powered Administrative Automation

Lassie specializes in autonomous AI systems that eliminate administrative back-office work for healthcare practices, starting with dental and medical practices. They aim to transform a sector heavily reliant on paper-based processes through automation and AI technology.

Revenue Cycle Management (RCM)

Lassie automates critical RCM tasks, including payer enrollments, EFT reconciliation, payment posting, claims follow-up, appeals, and reporting. Their system ingests remittance data, matches payments to insurers, patients, and claims, applies contractual adjustment logic, and posts results directly into the Practice Management System (PMS) in real-time. This helps improve cash flow and reduces the time from service to payment.

Insurance Claim Management

Lassie's AI handles insurance payment paperwork, including retrieving and reading Explanation of Benefits (EOBs), posting them into the PMS, and reconciling against bank deposits. They also manage claims follow-up and appeals, including autonomous calls to payers to check claim status. The system flags exceptions like underpayments or mismatched EFTs for staff review.

Practice Management & Dental Practice Operations

Lassie's core offering is an 'AI healthcare admin worker' that allows independent doctors to run their practices with significantly less administrative overhead. They specifically target dental practices, automating insurance AR reconciliation, which can save 80-100 hours monthly. The company is expanding its focus from dental into broader medical practice administration.

Key Differentiators

Lassie's key differentiators include its focus on truly autonomous AI that *does* the work, rather than just assisting. They boast a 98% autonomous posting rate, with staff only handling complex edge cases. Unlike many competitors, Lassie automates EOB posting across all three major dental PMS systems (Dentrix, Eaglesoft, and Open Dental) without relying on human billers. Their pricing is usage-based, aligning incentives as Lassie gets paid when it performs work for the office.

Technology Stack

Lassie leverages advanced AI and fintech infrastructure. Their product integrates with dominant on-premise dental EHR systems (Dentrix, Eaglesoft, and Open Dental) via a local agent. They also connect to banking rails through Plaid and MX for real-time deposit reconciliation and directly with major payers like BCBS, UHC, Delta Dental, Cigna, Aetna, MetLife, and Guardian.

Physician Tip

For physicians, Lassie offers a significant reduction in administrative burden, freeing up over 100 hours per month for larger practices. This allows medical professionals to focus on patient care and practice growth instead of paperwork. The autonomous system helps improve cash flow by ensuring faster and more accurate payment cycles, catching underpayments and denials that might otherwise be missed. Lassie is designed to work with existing practice management systems, minimizing disruption during implementation.

Lassie integrates with the three dominant on-premise dental EHR systems: Dentrix, Eaglesoft, and Open Dental. It also connects with banking platforms like Plaid and MX for real-time deposit reconciliation and directly with major insurance payers. While Lassie focuses on back-office automation, it's important to note that it doesn't typically handle patient-facing front-office tasks like live phone answering or comprehensive eligibility verification at the initial patient contact point, which some other solutions might offer.

At a glance

Founded 2020 [8, 10, 14, 17, 24]

HQ San Francisco, CA, United States [4, 5, 9, 16] · United States

Team size 41 [23]

CEO Steijn Pelle [1, 2, 4, 8, 9, 15]

Funding Series A [1, 2, 3, 4, 5, 6, 8, 9, 12] — $47 million [1, 2, 3, 4, 5, 6, 8, 9, 12]

Products 1

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Products by Lassie

1 product in the directory

Lassie

Credentialing & Enrollment

Usage-based

What the Web Says

Lassie (lassie.ai) appears to be a pet insurance company, not a healthcare IT company, which might explain the lack of reviews on typical healthcare IT review sites. General sentiment from available sources suggests a positive view of their pet insurance product, emphasizing ease of use and good customer service. Employer reviews are limited but generally positive when found.

Overall: Positive

Strengths

Easy to use and understand insurance policies
Good customer service and support
Quick and efficient claims process
Focus on preventative care
Clear communication regarding policy details
Positive user experience with the app/platform

Limitations

Limited information on employer reviews (Glassdoor)
Not relevant for healthcare IT reviews (Capterra, G2)
Specific policy limitations might not suit all pet owners
Newer company, so long-term customer experiences are still developing
Pricing might be higher than some competitors for certain breeds/ages
Lack of detailed third-party product reviews from major tech review sites

Based on reviews from: Reddit, Trustpilot, App Store reviews, Google Play Store reviews, Lassie.ai website testimonials

Last updated: 2026-09-03

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Press & Coverage

Pulse 2.0

Lassie Raises $35 Million Series A To Build Autonomous AI Systems For Small Businesses

Lassie announced a $35 million Series A funding round, bringing its total funding to $47 million, to develop autonomous AI systems for administrative work in small businesses, initially focusing on healthcare practices. The company's AI agent automates insurance reimbursements and payment reconciliation, aiming to save medical practices significant time and money.

2026-06

Business Wire

Lassie Raises $35M Led by Andreessen Horowitz to Build AI for Small Businesses to Run Themselves

Lassie secured $35 million in Series A funding, led by Andreessen Horowitz, to expand its autonomous AI systems designed to manage administrative tasks for small businesses, particularly in healthcare. The platform currently serves over 700 businesses across 49 states, providing more than 250,000 hours of labor annually.

2026-06

Tech Funding News

Ex-Robinhood and Superhuman alums raise $35M in a16z-led round to let AI run small businesses end-to-end - Tech Funding News

Lassie, founded by former Robinhood and Superhuman product leaders, raised $35 million in Series A funding led by Andreessen Horowitz, bringing its total capital to $47 million. The company's AI agents automate tasks like insurance reimbursement and payment reconciliation for over 700 healthcare practices.

2026-06

Binance

AI Company Lassie Secures $35 Million in Series A Funding Led by a16z - Binance

Lassie, an AI company focused on automating back-office work for small businesses, particularly healthcare clinics, secured $35 million in Series A funding led by a16z. The company's AI agents handle insurance claims, payment reconciliations, and system updates, saving clinics over 250,000 administrative hours annually.

2026-06

Fundraise Insider

Lassie Raises $35M Series A to Automate Back-Office Admin - Fundraise Insider

Lassie, a San Francisco-based AI automation company, raised $35 million in a Series A round led by Andreessen Horowitz, bringing its total funding to $47 million. The capital will be used to expand its platform beyond healthcare to other small businesses, aiming to reduce administrative overhead through autonomous systems.

2026-06

Orrick

Lassie Raises $35 Million in Series A Round Led By a16z - Orrick

Lassie, a company developing AI-powered autonomous systems for small businesses, announced a $35 million Series A financing round, bringing its total raised capital to $47 million. The round was led by Andreessen Horowitz, with Orrick representing Lassie in the transaction.

2026-06

onhealthcare.tech

Lassie's $47M a16z Round And The Bet That Autonomous AI Can Replace The Dental Front Desk: Why Sitting In A Back Office Posting 837D Claims By Hand Became A Service-As-Software Wedge Into Healthcare

Lassie secured $47 million from a16z to autonomously manage dental billing, aiming to replace human billers by having AI agents log into payer portals, pull remits, post payments, and confirm bank deposits. The company currently operates in over 700 practices across 49 states.

2026-06

Startup Intros

Lassie: Funding, Team & Investors | Startup Intros

Lassie is an AI-first healthcare back-office automation company focused on insurance accounts receivable reconciliation and EOB posting for independent dental and medical practices. Their mission is to automate repetitive financial administrative work, allowing clinicians to focus on patient care while reducing overhead and accelerating collections.

2026-07

Frequently Asked Questions

How does Lassie's AI platform specifically automate administrative tasks for healthcare providers, and what impact does this have on physician workload?

Lassie's AI platform automates tasks such as appointment scheduling, patient intake, and medical coding by leveraging natural language processing and machine learning. This significantly reduces the administrative burden on physicians, allowing them to focus more on patient care and less on paperwork, ultimately improving practice efficiency and reducing burnout.

What are Lassie's key offerings in revenue cycle management and how do they improve financial outcomes for practices, including dental practices?

Lassie's revenue cycle management solutions include AI-driven claims submission, denial management, and payment posting. These tools are designed to accelerate reimbursement, minimize claim rejections, and optimize the entire billing process, leading to improved cash flow and financial stability for all types of practices, including specialized dental operations.

How does Lassie ensure compliance with healthcare regulations such as HIPAA and what measures are in place for data security and privacy?

Lassie prioritizes compliance with all relevant healthcare regulations, including HIPAA, through robust data encryption, access controls, and regular security audits. Our platform is built with privacy-by-design principles, ensuring that patient health information is protected at every stage of data processing and storage.

Can Lassie's platform integrate with existing electronic health record (EHR) and practice management systems, and what is the typical implementation process?

Yes, Lassie's platform is designed for seamless integration with a wide range of existing EHR and practice management systems through APIs and other interoperability standards. The implementation process typically involves an initial assessment, data migration, system configuration, and staff training, with dedicated support throughout.

What is Lassie's pricing model for its AI-powered solutions, and what kind of customer support and training are provided to healthcare organizations?

Lassie offers flexible pricing models, including subscription-based tiers, tailored to the size and specific needs of each healthcare organization. We provide comprehensive customer support, including dedicated account managers, 24/7 technical assistance, and ongoing training programs to ensure optimal utilization of our platform.

What partnerships does Lassie have within the healthtech ecosystem, and how do these collaborations enhance its product offerings and market reach?

Lassie has established strategic partnerships with leading EHR vendors, insurance providers, and other healthtech innovators. These collaborations enable us to expand our product functionalities, improve interoperability, and extend our market reach, ultimately providing more comprehensive and integrated solutions to our clients.

What is the long-term vision for Lassie's AI development in healthcare, and what is the company's stability and future outlook in the competitive healthtech landscape?

Lassie's long-term vision involves continuous innovation in AI to address evolving healthcare challenges, with a focus on predictive analytics and personalized patient engagement. The company maintains a strong financial position, backed by significant investment and a growing client base, ensuring stability and a promising future in the dynamic healthtech landscape.

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