Inbox Health vs RevSpring
Two Patient Payments & Billing vendors, side by side. Facts from public sources; judgments are ours.
At a glance
Derived from public facts · a rough scale, not a ranking
| Inbox Health | RevSpring | |
|---|---|---|
| Pricing model | Not published · Custom quotes | Per-transaction / per-chart · Per-statement fees plus payment processing |
| Speed to go live | Integrates with common PM systems | Statement conversion project, one to three months |
| Automation model | Software platform · Automated patient billing outreach | Software platform · Platform plus print and mail operations |
| Built for | Small practices, Mid-size groups, Billing companies | Mid-size groups, Enterprise systems, Payers |
| Security posture | SOC 2 Type II, HIPAA, PCI DSS | HITRUST, SOC 2 Type II, PCI DSS, HIPAA |
| Company maturity | 12 yrs (est. 2014) | 45 yrs (est. 1981) |
| Financial backing | $60M+ · Series B+ | Private equity-owned (Frazier Healthcare Partners) |
| Named customers | 2 named | 2 named |
| Published results | Specific numbers public | Specific numbers public |
| Documented integrations | 5 listed | 3 listed |
| Third-party validation | None found | KLAS / analyst cited |
Bottom line
- Pick Inbox Health if you are a billing company or practice that wants patient statements, reminders, and payments automated across email, text, and paper mail.
- Pick RevSpring if you want a proven, analytics-driven statement and payment vendor that can run both print and digital at health system scale.
Inbox Health
Patient billing communication for billing teams
- Founded
- 2014
- HQ
- New Haven, CT
- Stage
- Series B+
- Raised
- $60M+
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.
Named customers
CHE Behavioral Health Services · AdvancedCare
Integrations
RevSpring
Patient billing communications and payments at enterprise scale
- Founded
- 1981
- HQ
- Nashville, TN
- Stage
- Private equity-owned (Frazier Healthcare Partners)
- Raised
- n/a
What it does
- Print and digital patient billing statements
- PersonaPay payment portal and payment plans
- Analytics that tailor message and payment offers
- Omnichannel outreach: text, email, voice, mail
- Pre-service estimates and financial engagement
- Integrated payment processing via TrustCommerce
Where it's strong
- Proven at scale: 1.5 billion communications and over $8 billion in payments processed annually.
- Data-driven personalization measurably lifts patient payment rates versus generic statements.
- The TrustCommerce acquisition adds a widely deployed Epic-integrated payment gateway.
What buyers should weigh
- It is an incumbent print-heavy vendor at its core; digital-first rivals pitch faster innovation.
- Statement and processing fees add up, and switching statement vendors is disruptive mid-contract.
- PE ownership changes (GTCR to Frazier) can shift roadmap and pricing priorities.
Named customers
Geisinger Health Plan · Emory Healthcare
Integrations
Compare against the rest of Patient Payments & Billing
Deciding between these two?
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