Fundraising Fox

InBox Health Corp.

New Haven, US · Founded 2014 · Delaware corporation · 128 employees on LinkedIn · 7 known investors

Inbox Health provides automated patient billing and communication tools for medical practices and billing companies, sending customized billing messages via email, text, paper mail, or voice calls with follow-ups that adapt to patient interactions. The platform aims to increase collection rates while reducing phone calls and paper statements.

Also known as Inbox Health

Founders & leadership

LW
Lawrence WalkerNamed on SEC filing
DS
David SturekNamed on SEC filing
AI
Alphonse IppolitoNamed on SEC filing

Board

MDMatthew D. Storeygard
Matthew D. Storeygardin𝕏Board directorSenior Managing Director, Investments and Bio Team Director at Connecticut Innovations
SP
Steven PiakerBoard director
VKVivek Krishnamurthy
Vivek Krishnamurthyin𝕏Board directorPartner at Commerce Ventures
JP
Jason PavonaBoard director
KI
Kent IvanoffBoard director

Investors · 7

Reported raises · per SEC filings

Form D private placements

$49.9M disclosed across 6 rounds · 2016–2025

$10MraisedJul 2025 · 8 investors · Other Health Care
Rule 506(b)
Officers, directors & promoters on the filing
  • Lawrence WalkerExecutive Officer, Director
  • Matthew D. StoreygardDirector
  • Jason PavonaDirector
  • Steven PiakerDirector
  • Kent IvanoffDirector
  • Vivek KrishnamurthyDirector
Offering amount
$10M
Amount sold
$10M
First sale
Jul 2025
Incorporated
Corporation, Delaware
Federal exemptions
06b
Full filing on SEC EDGAR ↗
$22.5MraisedMay 2023 · 8 investors · Other Health Care
Rule 506(b)
Officers, directors & promoters on the filing
  • Dan RosenDirector
  • Steven PiakerDirector
  • Matthew D. StoreygardDirector
  • Blake WalkerExecutive Officer, Director
  • Charles GambleExecutive Officer
  • Jason PavonaDirector
Offering amount
$22.5M
Amount sold
$22.5M
First sale
Apr 2023
Incorporated
Corporation, Delaware
Federal exemptions
06b
Full filing on SEC EDGAR ↗
$2MraisedApr 2021 · 1 investors · Other Health Care
Rule 506(b)
Officers, directors & promoters on the filing
  • Dan RosenDirector
  • James FoyDirector
  • Matthew D. StoreygardDirector
  • Blake WalkerExecutive Officer, Director
  • Enmi KendallDirector
  • Charles GambleExecutive Officer
Offering amount
$2M
Amount sold
$2M
First sale
Mar 2021
Incorporated
Corporation, Delaware, 2016
Federal exemptions
06b
Full filing on SEC EDGAR ↗
$9MraisedMar 2021 · 12 investors · Other Health Care
Rule 506(b)
Officers, directors & promoters on the filing
  • Blake WalkerExecutive Officer, Director
  • Charles GambleExecutive Officer
  • Dan RosenDirector
  • James FoyDirector
  • Enmi KendallDirector
  • Matthew D. StoreygardDirector
Offering amount
$12M
Amount sold
$9M
First sale
Mar 2021
Incorporated
Corporation, Delaware, 2016
Federal exemptions
06b
Full filing on SEC EDGAR ↗
$2.5MraisedFeb 2020 · 2 investors · Other Health Care
Rule 506(b)
Officers, directors & promoters on the filing
  • Matthew StoreygardDirector
  • James FoyDirector
  • Charles GambleExecutive Officer, Director
  • Blake WalkerExecutive Officer, Director
  • David SturekDirector
Offering amount
$3.5M
Amount sold
$2.5M
First sale
Feb 2020
Incorporated
Corporation, Delaware, 2016
Federal exemptions
06b
Full filing on SEC EDGAR ↗
$3.9MraisedJun 2018 · 30 investors · Other Health Care
Rule 506(b)
Officers, directors & promoters on the filing
  • David SturekDirector
  • Matthew D. StoreygardDirector
  • Lawrence Blake WalkerExecutive Officer, Director
  • Alphonse IppolitoExecutive Officer
Offering amount
$4M
Amount sold
$3.9M
First sale
Dec 2016
Incorporated
Corporation, Delaware, 2014
Federal exemptions
06b
Full filing on SEC EDGAR ↗

Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.

Company profile

researched Aug 2026

Inbox Health provides patient billing software for healthcare revenue cycle operations. The platform automates patient billing cycles, tailoring the timing and content of billing communications to each practice and each individual patient, and delivers billing messages by email, text message, paper mail, and voice call. Follow-up communications adapt based on how a patient interacted with earlier messages.

The platform also covers patient support and payments. It offers HIPAA-compliant live chat, text, email, and phone support, with AI-generated responses that handle routine issues such as insurance information updates, and an option to fully outsource patient billing support to an Inbox Health team. On the payments side, patients can pay by credit card, digital wallet, ACH, phone, and check, in office or online, and practices can offer automated payment plans. Inbox Health integrates with commonly used practice management systems so patient accounts receivable can be managed centrally.

Business model

Inbox Health sells its patient billing platform to medical billing companies and healthcare practices, and also operates a partner program through which partners can offer a customized, white-labeled patient billing experience powered by Inbox Health.

Traction

Inbox Health reports that customers collect 85% of patient accounts receivable within 15 days, see a 2x increase in total patient collections, resolve 70% of patient billing inquiries without involving practice staff, and send 90% of statements digitally. Named customers and references include Precise Practice Management, Keystone Medical Management, The Auctus Group, PractiSynergy, and Eyecare Services Partners, an ophthalmology and optometry practice group that a company case study says exceeded its full-year 2024 collections in 8.5 months.

Latest developments

The company publishes ongoing guidance and case studies on patient billing topics, including healthcare autopay and card-on-file automation, and runs a schedule of live webinars.

Full profile — market position, technology, go-to-market

Market position

Inbox Health positions itself in healthcare patient billing and revenue cycle management, addressing the gap between what patients owe and what providers collect; the company cites a cost of approximately $4 to collect $1 of patient accounts receivable and states that healthcare organizations collect less than half of patient balances owed.

Technology

The platform combines automated, adaptive patient billing workflows across email, text, paper mail, and voice with AI-powered responses to common patient billing inquiries, HIPAA-compliant communication channels, multiple payment methods including credit card, digital wallet, ACH, phone and check, automated payment plans, and integrations with widely used practice management systems.

Go-to-market

The company markets through demo requests on its website, published guides, blog content and case studies, live webinars, and a partner channel for organizations that want to deliver patient billing under their own brand.

Medical billing companies, healthcare practices and practice groups, healthcare revenue cycle leaders, and partner organizations that resell or embed patient billing capabilities.

Compiled by commissioned research from 1 cited public sources — announcements, filings, and press listed under research sources below.

Key figures

latest reported
HeadcountAug 2026128
Increase in total patient collectionsJan 20262x
Patient A/R collected within 15 daysJan 202685%
Patient billing inquiries resolved without interrupting practice staffJan 202670%
Patient inquiries resolved after first touchpoint by outsourced support teamJan 202690%
Statements sent digitallyJan 202690%

Company-reported or press-reported figures, each dated to when it was claimed — not independently audited.

Competitors · 5

by search overlap
Aha71 shared keywordsContent references the American Hospital Association's national advisory work on cybersecurity and risk for the U.S. healthcare field, including analysis of cyberattacks targeting hospitals and health systems.
Experian65 shared keywordsExperian offers consumers tools to access their credit report and FICO Score, build credit, and manage money, including credit card matching, bill and subscription negotiation, car insurance comparison, and a digital checking account with debit card. It serves individual U.S. consumers through its app and financial products.
Tebra Technologies (FKA Kareo)49 shared keywordsTebra provides an all-in-one operating system for independent healthcare practices, combining EHR, medical billing, patient payments, and practice management tools. The platform serves independent practices, billing companies, and various medical specialties including family medicine, primary care, pediatrics, mental health, and nurse practitioner practices.
Advancedmd48 shared keywordsAdvancedMD provides cloud-based medical office software for ambulatory and independent medical practices, offering practice management, electronic health records, telemedicine, patient relationship management, and business analytics reporting. It also offers outsourced medical billing options and serves practitioners, practices, and billing companies across the United States.
Patientpay45 shared keywordsPatientPay offers a digital-first healthcare payment platform that helps providers, practices, and facilities collect patient payments through options like card-on-file, Apple Pay, and self-service payment plans. It focuses on simplifying billing and the patient payment experience in the healthcare industry.

Companies competing with InBox Health Corp. for the same Google search keywords, organic and paid, via search-intersection analysis.

Legal entities · 1

corporate structure
InBox Health Corp.Delaware

Research sources · 1

primary sources listed

1 public sources were cited for this profile; the first-party ones are listed here.

Frequently asked questions

What does InBox Health Corp. do?
Inbox Health is a patient billing platform that automates medical billing communications, payments, and patient support.
Who are InBox Health Corp.'s investors?
InBox Health Corp.'s investors include Atento Capital, Commerce Ventures, Connecticut Innovations, Healthy Ventures, LaunchCapital, Vertical Venture Partners, Mana Ventures.
How much funding has InBox Health Corp. raised?
InBox Health Corp. has disclosed $49.9M raised across 6 rounds.
Where is InBox Health Corp. headquartered?
InBox Health Corp. is headquartered in New Haven, US.