---
title: "From an 800-Agent Call Center to a16z: Inside Prosper AI's $30 Million Bet on Healthcare Voice AI"
description: Prosper AI raised $30 million led by Andreessen Horowitz to take its healthcare voice AI beyond scheduling into insurance verification and billing.
author: Darie Nani (Editor-in-Chief)
date: 2026-06-22T13:00:23.692Z
updated: 2026-06-22T13:00:23.705Z
canonical: https://www.sovereignmagazine.com/article/prosper-ai-30m-series-a-healthcare-voice-ai
image: https://cdn.nanimediahouse.com/Prosper-AI-cofounders-Xavier-de-Gracia-and-Josep-Mingot.webp
categories: Startups, Artificial Intelligence
content_type: Feature
region: New York
publication: Sovereign Magazine
about:
  - type: Organization
    name: Prosper AI
    url: https://www.getprosper.ai/
    sameAs:
      - https://www.linkedin.com/company/prospertechnologies
---

Before he started a company to automate healthcare's phone calls, Xavier de Gracia ran them by hand. As a general manager, he oversaw a $120 million business unit with more than 800 customer-service agents and 300 phone-sales staff, the kind of operation that spends its day on hold, reading from scripts and rekeying the same information into different systems. He had also advised healthcare investors and operators at Bain & Company. The work taught him where the time and money go in a service business built on the telephone, and where software might take them out.

Prosper AI, the company he co-founded, has now raised a $30 million Series A led by Andreessen Horowitz, with participation from Base10 Partners and continued support from Emergence Capital, Y Combinator and Company Ventures. The round comes about six months after a $5 million seed and brings the total raised to roughly $35 million. The company, which keeps offices in Madrid and New York, builds healthcare voice AI that handles the administrative calls surrounding a doctor's appointment, from the first booking through to the bill.

## From Running Call Centers to Building Healthcare Voice AI

De Gracia's co-founder, Josep Mingot, brings the technical half of the story. He was a product leader at CoverWallet, the insurance company acquired by Aon, and before that a computer-vision research assistant at the Massachusetts Institute of Technology. The pairing is deliberate: one founder has run the phone-heavy back office that healthcare providers struggle to staff, the other has built software for the insurance workflows that sit behind it. The company went through Y Combinator's Summer 2023 batch.

The founders are a Spanish team building for the American healthcare system, which is an unusual starting point but a logical one. The United States spends more on administration than any comparable health system, and much of that cost is routed through call centers that look a great deal like the ones de Gracia used to manage. Prosper puts the administrative burden it is targeting at $450 billion a year, the same figure that anchored its earlier funding round. The pitch is that the phone, not the clinic, is where a large share of that money is lost.

## What Prosper AI's Voice Agents Actually Do

Most of the first wave of healthcare voice AI stopped at scheduling. An agent answers the phone, books an appointment and hands everything else back to a human. Prosper's argument is that scheduling is the easy part, and that the cost sits in the steps on either side of it.

Its agents answer patient calls, book appointments directly in the electronic health record, verify insurance benefits, automate patient billing and call insurers when more information is needed. The company describes the result as a "financially cleared appointment," meaning the patient's coverage and likely out-of-pocket cost are settled before they arrive, rather than weeks later in a surprise bill. In a market where insurance verification and prior authorization are among the slowest and most disliked parts of getting care, automating the full chain rather than the first call is the company's main point of difference.

That breadth, the founders say, is what wins competitive reviews. "We evaluated seven different vendors through an extensive RFP and live demonstration process and concluded that Prosper AI had the most comprehensive platform," said Jonathan Banta, chief executive of The 44 Group and co-founder of The Executive Roundtable, a provider consortium representing more than 600 physicians. "The difference wasn't simply scheduling. Prosper AI was the only platform capable of handling insurance verification, patient financial responsibility, and the broader workflows required to support the entire patient journey."

Noah England, chief operating officer of Piedmont Dermatology, put the gap in operational terms. "Out of the gate, Prosper AI was handling more than 50% of our patient conversations end-to-end, including complex cases involving real-time benefits verification," he said. "Many organizations using other AI solutions remain stuck at 20-30% automation because those systems stop at scheduling."

> "Out of the gate, Prosper AI was handling more than 50% of our patient conversations end-to-end, including complex cases involving real-time benefits verification."
> — Noah England, COO, Piedmont Dermatology

By its own account, Prosper has grown revenue fivefold over the past six months, added more than 40 healthcare organizations as customers, reached over 150,000 providers and now powers more than $1.3 billion in patient care. The company says it wins 80% of the competitive evaluations it enters. Those are figures the company supplies rather than independently audited numbers, but the customer roster is checkable: it lists PE-backed outpatient groups such as Preferred Dermatology and health systems including Jackson Memorial Hospital, the second-largest hospital in Florida.

## Why Andreessen Horowitz Led the $30 Million Series A

For Andreessen Horowitz, the appeal is the way Prosper expands inside an account. "AI should make healthcare infinitely accessible," said Jay Rughani, a partner in the firm's bio and health practice. "What convinced us was the pattern we kept hearing from customers. Providers would deploy Prosper AI for scheduling, then quickly ask them to take on insurance verification, then billing, and so on. That pull-through only happens when your technology can consistently guide patients through the care journey end-to-end."

Adeyemi Ajao, co-founder and managing partner at Base10 Partners, framed it as a revenue story as much as a cost one. Prosper, he said, "is leveraging agentic AI to transform the way provider groups and hospitals engage with patients, driving not only savings, but increased revenue and better patient experience."

The investment is not Andreessen Horowitz's first move into the category. The firm has also backed Infinitus Systems, which automates the phone calls between healthcare providers and insurers, a sign that the people-on-the-phone problem is now a deliberate theme rather than a single bet.

## Inside a Crowded Market for AI Phone Agents in Healthcare

Prosper enters a field that has drawn a lot of money. Hippocratic AI has raised several hundred million dollars for patient-facing clinical voice agents, Assort Health pulled together more than $100 million across three rounds in a single year, and revenue-cycle players such as Cedar and Commure operate at multibillion-dollar valuations on the billing end of the same journey. Against that, Prosper's $35 million total is a modest sum, and the company is betting on scope rather than size, on owning the whole administrative chain rather than one link of it.

Enterprise software companies are starting to choose it on those grounds. Athenahealth, one of the largest ambulatory electronic-health-record platforms in the United States, selected Prosper for internal voice workflows after evaluating several options. Imagine Software, which serves more than 100,000 physicians and processes over $65 billion in claims a year, did the same. "We reviewed multiple AI platforms, and Prosper AI consistently delivered the strongest performance, now handling thousands of conversations per day across multiple clients on our platform," said Sam Khashman, chief executive of ImagineSoftware.

Sovereign covered Prosper at the seed stage, when the company was making the case that [the phone call is where American healthcare quietly loses money](https://www.sovereignmagazine.com/article/the-phone-call-that-could-save-healthcare-how-prosper-ai-tackles-america-s-450-billion-admin-). The Series A is the same argument with more capital behind it and a broader product to point to.

## What Prosper AI Plans Next

With the new funding, Prosper says it will expand its engineering and customer-facing teams, deepen integrations across the largest electronic-health-record platforms and push adoption further into provider groups and health systems. The wider goal the founders describe is an "AI workforce" for healthcare operations, software that does the routine administrative labor a hospital would otherwise hire and train people to do.

For de Gracia, it is a return to a problem he knows from the inside. He spent years staffing and managing the phone lines that healthcare runs on. The company is a bet that the next version of that work belongs to software.

## FAQ

**Q: What is healthcare voice AI?**
Healthcare voice AI refers to software agents that handle spoken phone conversations for medical providers, such as answering patient calls, booking appointments, verifying insurance benefits and contacting insurers. Prosper AI is one of several companies building these agents to automate the administrative calls around a doctor's appointment.

**Q: What does Prosper AI do?**
Prosper AI builds voice agents that manage the administrative side of a patient visit from end to end. They answer calls, schedule appointments in the electronic health record, verify insurance, automate patient billing and phone insurers when more information is needed, with the aim of confirming a patient's coverage and likely cost before the appointment.

**Q: How much has Prosper AI raised, and who invested?**
Prosper AI has raised a $30 million Series A led by Andreessen Horowitz, with participation from Base10 Partners and continued support from Emergence Capital, Y Combinator and Company Ventures. The round follows a $5 million seed about six months earlier, bringing total funding to roughly $35 million.

**Q: How does AI insurance verification work?**
AI insurance verification uses software to check a patient's coverage and benefits automatically, often by calling or querying the insurer in real time. Prosper AI says automating this step, rather than stopping at scheduling, is what lets it produce a "financially cleared appointment" in which coverage and out-of-pocket cost are settled before care is delivered.

**About Prosper AI**

[Website](https://www.getprosper.ai/)