From a Student Project to Harvard's Launch Lab X: The Story Behind PhyxUp Health
PhyxUp Health has been accepted into Harvard Innovation Labs Alumni Launch Lab X. Here's the story behind the company and what it means for small PT clinics.
There's something meaningful about returning to where it all started.
Back in 2019, Sangwon Lim was a student spending long hours at the Harvard Innovation Labs, sketching out a no-code prototype for a digital health platform and asking one question: what if technology could genuinely help physical therapists deliver better patient care?
That project became PhyxUp Health.
And this week, PhyxUp Health has been accepted into the Harvard Innovation Labs Alumni Launch Lab X, a program for founders who started at Harvard and are building something real.
Where PhyxUp Health Came From
Sangwon didn't set out to build a software company.
She trained as a physical therapist, someone who works hands-on with patients, understands the rhythm of a clinic, and knows firsthand what it feels like when administrative burden gets in the way of actual care.
That background shaped everything.
When she began exploring how technology could support physical therapy practices, she wasn't building for an abstract market. She was building for clinics she understood deeply: small, independently-run practices where the physical therapist is also the owner, the scheduler, the biller, and the care provider, all at once.
The early version of the platform was a scrappy no-code prototype. But it was built on a real insight, and that insight has only gotten sharper.
What the Platform Does Today
Remote Therapeutic Monitoring (RTM) is a Medicare-supported program that allows physical therapists to monitor patients between sessions, tracking exercise adherence, pain levels, and recovery progress through a connected platform. When done right, it improves patient outcomes, increases clinic revenue, and strengthens the therapist-patient relationship.
Sangwon Lim
The challenge is that most RTM software was built for large health systems, not for the independent PT clinic with one or two therapists, limited admin support, and a schedule that's already full.
The platform was built differently.
It integrates into a small clinic's existing workflow without adding operational burden. Compliance documentation is built in. Billing is streamlined.
For enrolled patients, RTM generates approximately $165 in monthly reimbursement per patient under current Medicare fee schedules, with documentation handled directly through the platform.
The Harvard iLab Milestone
Getting into the Harvard iLab Alumni Launch Lab X isn't just a credential.
It's a signal: the problem being solved is real, the approach is credible, and the team has what it takes to build something that lasts.
For the clinics that use the platform, this moment is a reminder of who built it and why.
It wasn't designed in a boardroom. It was designed by someone who has been in the clinic, who knows what it actually takes to run a small practice and still deliver excellent patient care.
That context shapes every feature decision, every support interaction, and every conversation about what comes next.
Frequently Asked Questions
What is RTM and how does it differ from RPM?
Remote Therapeutic Monitoring (RTM) tracks musculoskeletal and respiratory therapy data, such as exercise adherence and pain levels, making it well-suited for physical therapy.
Remote Patient Monitoring (RPM) tracks physiological data like blood pressure or glucose and is primarily used in primary care settings.
The two programs use different CPT billing codes and have distinct documentation requirements.
Do small PT clinics qualify for RTM reimbursement?
Yes. RTM is available to any Medicare-enrolled physical therapist, regardless of practice size.
Solo and small group practices are eligible as long as they meet the required monitoring time thresholds and maintain compliant documentation for each billing period.
How long does it take to set up RTM in a small clinic?
Setup timelines vary, but clinics using purpose-built RTM platforms typically go from onboarding to first patient enrollment within a few days.
The main time investment is staff training and patient communication, not technical configuration.
What's Next
PhyxUp Health is continuing to grow, adding new clinic partners and refining the platform based on real clinical feedback. If you're a physical therapist or clinic owner curious about RTM, we'd love to walk through what it would look like for your practice.
PhyxUp Health is a Remote Therapeutic Monitoring platform built for small outpatient physical therapy clinics. Learn more at phyxuphealth.com.