Inbox Health

Patient billing communication for billing teams

Our take

Inbox Health is a patient billing communication platform built for medical billing companies rather than practices directly. It automates statement delivery across email, text, paper, and phone, adapts timing and channel to each patient, and includes a patient support layer that answers most billing questions without a phone call to the biller. Billing companies white-label it to modernize patient collections for the small and mid-size practices they serve, reporting collection speed gains of 60% in the first 60 days.

Founded in 2014 in New Haven, Connecticut, Inbox Health has raised more than $60M, including a $22.5M Series B led by Ten Coves Capital and a further $20M in September 2025. More than 2,600 practices are on the platform through its billing company channel, and over 3.5M patients have paid a bill with it. Recent partnerships with Encoda and AdvancedCare extend its reach, and its wedge remains distinct: it wins the billing companies that everyone else in patient payments sells around.

What it does

Patient billing platform built for medical billing companies
Automated statement cycles across email, text, mail, and phone
Built-in patient support that resolves most billing questions
Online payments and payment plans
Syncs balances with practice management systems

Where it's strong

The only platform in this set designed around third-party billing companies, which serve thousands of small practices the enterprise vendors ignore.
Proven distribution: 2,600+ practices reached through billing company partners and 3.5M+ patients have paid a bill on it.
Its patient support layer answers billing questions itself, reported at 90% resolution, which directly cuts billing company phone load.

What buyers should weigh

If you are a practice rather than a billing company, you will usually access it through a partner, which adds a layer to the relationship.
Its September 2025 $20M raise was structured as other equity rather than a priced Series C, worth understanding in diligence.
Channel focus means the patient experience can vary with how well your billing company configures it.

Latest

Raised $20M in September 2025 and announced a strategic partnership with Encoda in December 2025 to combine payer and patient revenue capture.