Healthcare IT · Revenue cycle automation
Health Harbor
A Y Combinator backed startup whose AI agent calls health insurance companies on behalf of medical clinics, chasing down benefits, prior authorizations and claim status so office staff do not have to sit on hold.
The call nobody wants to make
A front desk employee dials a insurer's benefits line, punches through an automated menu, waits on hold, then reads a patient's plan details to a representative and writes down the answer by hand. Multiply that by every patient, every procedure code, every payor. Health Harbor's pitch is to replace that call with a machine that makes it instead.
The company's own description is plain about the job: “We use generative AI to call insurance on behalf of healthcare clinics.” The AI dials the payor, works through the interactive phone tree, waits on hold, and either talks to a live representative or, in a lighter mode called AI Copilot, hands the call to a staff member once a human picks up. Health Harbor says it covers medical, behavioral health and pharmacy benefits and can reach more than 6,000 insurers, including regional payors that have no online benefits lookup at all.
The problem it is chasing
Health Harbor's Y Combinator launch post put a number on the pain: more than 230,000 private practices in the US spend over 8 hours a week on the phone with insurance companies, which the founders add up to roughly 100 million wasted hours a year nationally. The result, in the company's telling, is slower billing cycles and patients who find out what they owe only after a procedure, when a surprise bill is much harder to contest.
Health Harbor's answer is to compress that cycle. The company says its standard turnaround is 24 hours against a typical 3 day turnaround from outsourced human call centers, and that its service costs more than 50% less than outsourcing the same calls to a staffing vendor.
Three founders and a hearing aid
Alan Liu, the CEO, has a technical background: five years of software experience in AI at Meta, where he worked on speaker identification for the Portal device, and at Nuro, where he worked on predicting objects hidden from a self driving vehicle's view. According to Y Combinator's company page, his path to Health Harbor ran through Yale, where he was building a hearing aid for himself and ran into the medical insurance system directly, an experience the company says shaped his interest in fixing the billing process for doctors and patients.
His co-founders came from different corners. Nathan Amin worked at an early stage startup, Liminal Sciences, that went public with Hyperfine, where he helped set product strategy and built the product himself as a designer and software engineer. Gloria Wu had planned multi year growth strategy at Bain and at the Gates Foundation. The three launched Health Harbor together in July 2023 as part of Y Combinator's Summer 2023 batch, after what the launch post describes as each of them personally dealing with insurance billing problems or hearing similar complaints from clinicians.
From a launch post to a paying product
Health Harbor's public debut was a Y Combinator Launch post on July 26, 2023, cross posted to LinkedIn by both Liu and Amin the next day. The pitch has stayed consistent since: an AI that calls insurance so clinics do not have to, sold through a HIPAA certified portal and API.
By the time GetLatka published a revenue estimate in September 2026, it put Health Harbor at about $440,000 in 2025 annual revenue, up from $0 at the 2023 launch, and counted 4 employees as of June 2024. Company size trackers disagree on the current headcount: LinkedIn lists the company at 2 to 10 employees, while Tracxn's tracker shows 16 as of July 2026. None of the three sources cites a primary document, and the company has not published its own staff count.
What is proven, and what is still claimed
| Evidence | What the record shows | Source type |
|---|---|---|
| Y Combinator backing | Listed on Y Combinator's own company directory as a Summer 2023 (S23) batch company, with an active jobs listing on Work at a Startup. | Public record |
| Pre-seed funding | VCBacked reports $500,000 raised in a pre-seed round, last funding announced September 2023, with Y Combinator as the only listed investor. No press release or SEC filing was found to confirm the figure. | Independent estimate |
| SEC Form D | SEC EDGAR's company search for Form D filings and its full text search return no filing under the names Health Harbor, Health Harbor Inc, or the healthharbor.co domain, checked September 25, 2026. | Not found |
| 2025 revenue | GetLatka estimates about $440,000 in 2025 annual recurring revenue, built from GetLatka's own modeling rather than a disclosed figure. | Independent estimate |
| Employee count | Three counts disagree: LinkedIn shows 2 to 10 employees, GetLatka recorded 4 as of June 2024, and Tracxn recorded 16 as of July 2026. | Differs across sources |
| Named customers | Two clinics are named in testimonials on Health Harbor's own site: Kivo Health, a pulmonary rehab practice, and Flair Health, a chronic care management practice. No customer count or list beyond those two has been published. | Company-stated |
| Accuracy and scale claims | The company states 99% accuracy on its automated results, more than 3,000 fully automated calls per day, and coverage of over 6,000 payors. No third party audit or methodology for the accuracy figure was found. | Company-stated |
| Compliance | The company states it meets HIPAA standards and SOC 2 Type II requirements. No auditor or certificate was named or found independently. | Company-stated |
| FDA, trials, federal grants | Health Harbor is a billing and calling service, not a medical device, and no FDA clearance, registered clinical trial, NIH award, or NSF award tied to the company was found. | Not applicable / not found |
Read plainly: Health Harbor has a clear Y Combinator pedigree, a specific product description, and two named clinic customers who vouch for it in testimonials the company chose to publish. What it has not done is confirm a funding amount in a filing, publish a customer list beyond two names, or explain how its 99% accuracy figure is measured. The revenue and headcount numbers in circulation all come from third party estimators rather than the company itself.
What to watch
- Whether Health Harbor or an investor discloses a funding round on the record, in a press release or an SEC filing.
- Named customers beyond Kivo Health and Flair Health, and any published customer count.
- A resolution of the employee count gap between LinkedIn, GetLatka and Tracxn.
- Independent verification of the 99% accuracy claim or the daily call volume.
In their words
“Very excited to announce that Nathan Amin, Gloria Wu and I publicly launched Health Harbor as a Y Combinator backed company! Let me know if someone you know owns/works at a private medical practice, so we can save them from the agony of talking to insurance!”
Alan Liu, co-founder and CEO, LinkedIn launch post, Jul 27, 2023 · Company-stated
“Imagine spending almost 100 million hours on the phone with medical insurance. Trust us, medical providers can.”
Health Harbor Launch YC post, Jul 26, 2023 · Company-stated
“The speed and accuracy of the results enable our patients to make informed decisions.”
Director of Clinical Operations, Kivo Health, quoted on Health Harbor's website · Company-stated
“Health Harbor’s seamless eligibility verifications enable us to focus on patient care.”
Co-founder and CEO, Flair Health, quoted on Health Harbor's website · Company-stated
Related companies
Sources
- Public recordHealth Harbor: Using generative AI to call insurance for healthcare clinics
- Public recordSEC EDGAR company and full text search for Health Harbor, Form D
- IndependentHealth Harbor Revenue 2025: $440K Est. ARR
- IndependentHealth Harbor - 2026 Company Profile & Team
- IndependentHealth Harbor Funding & Investors, Pre-Seed, San Francisco
- IndependentHealth Harbor: Streamline Insurance Claims for Healthcare Practices
- IndependentVectorShift Podcast, Episode 3, Alan Liu, CEO of Health Harbor
- IndependentGenerative AI in healthcare, Health Harbor's CEO Alan Liu
- CompanyHealth Harbor website, product and customer testimonial pages
- CompanyHealth Harbor company page
- CompanyLaunch YC: Health Harbor, automated billing for private medical practices
- CompanyLaunch YC: Health Harbor, automated billing for private medical practices
Profile researched and written by Healthcare Discovery. Last updated September 29, 2026.
