Our Story

Built by people who've
lost someone to
heart failure.

ControlHF was born from a painful, preventable moment. Our co-founder watched his father return to the hospital three times in six months — each time for something the data could have caught. That grief became a mission: build the system that should have already existed.

2017
Year Founded
After our co-founder's father was readmitted 3 times in 6 months. There had to be a better way.
"We didn't set out to build software. We set out to keep people home." — Dr. Aisha Patel, Co-Founder & CEO
M

Mission

To prevent avoidable heart failure hospitalizations through continuous, compassionate remote monitoring — so patients live more of their life outside hospital walls.

V

Vision

A world where no heart failure patient is readmitted for something the data already knew. Where the gap between clinic visits is filled with connection, not anxiety.

Va

Values

Clinical rigor without jargon. Empathy without condescension. Speed without shortcuts. We build for the patient first — and let everything else follow from that.

The team behind the tech.

Cardiologists, engineers, pharmacists, and operators who've spent careers at the intersection of clinical care and technology — unified by a single, stubborn belief that heart failure outcomes can be radically better.

Dr. Aisha Patel, MD
Co-Founder & CEO

Interventional cardiologist trained at Johns Hopkins. Built and led the HF clinic at UCSF before stepping away to address the gap she kept seeing: patients discharged into silence. Named to Forbes Healthcare 30 Under 40 in 2022.

James Okafor
Co-Founder & CTO

Previously led infrastructure at Oscar Health and Apple's HealthKit integration team. His father's readmissions in 2016 made this more than a career move. Holds 7 patents in real-time biosignal processing and edge ML.

Dr. Marcus Webb, MD
Chief Medical Officer

Board-certified in advanced heart failure and transplant cardiology. Former medical director of the HF program at Cleveland Clinic. Oversaw the IRB protocols that underpin ControlHF's composite alert algorithm and authored three NEJM papers on RPM.

Sarah Lin
VP Clinical Operations

Twelve years scaling clinical programs at Livongo and Teladoc. Designed the nurse practitioner workflows that let ControlHF's clinical team manage panels 3x larger than traditional HF disease management programs without sacrificing response time.

Dr. Priya Desai, PharmD
Head of Clinical Pharmacy

Clinical pharmacist specializing in heart failure guideline-directed medical therapy optimization. Designed ControlHF's medication titration support module and leads our pharmacist-in-the-loop escalation pathway for patients on complex diuretic regimens.

Omar Reyes
Head of Product

Worked on chronic disease management UX at Apple and Omada Health before joining ControlHF. Believes the hardest design problem in digital health is making a patient who feels fine understand why today's check-in matters. He's still working on it.

Trusted By

Backed by the people who understand what's at stake.

Our investors aren't just writing checks — they're health system CEOs, cardiologists, and operators who have lived the problem ControlHF is solving.

$42M
Total raised across Seed, Series A, and Series B
12
Institutional and strategic investors
3
Health system strategic partners
2026
Series B closed, led by Andreessen Horowitz Bio
a16z Bio
Lead, Series B
General Catalyst
Series A Lead
Optum Ventures
Strategic Partner
Rock Health
Seed Lead
Mayo Clinic
Health System Partner
UPMC Enterprises
Strategic Investor
Northwell Health
Health System Partner
OSF Healthcare
Health System Partner
Company Milestones

From a hospital room in 2017
to a platform in thousands of homes.

2017
ControlHF founded in San Francisco
Dr. Aisha Patel and James Okafor incorporate ControlHF after James's father is hospitalized three times for fluid overload that weight trends could have predicted. They begin building the first prototype of the composite alert algorithm on nights and weekends while still in their day roles.
2019
$4.2M Seed round & first clinical pilot
Rock Health leads a $4.2M seed round. ControlHF launches its first 90-patient clinical pilot with UCSF's Heart Failure Center, achieving a 38% reduction in 30-day readmissions versus matched historical controls. IRB approval secured for expanded research protocol.
2021
$14M Series A & FDA registration
General Catalyst leads a $14M Series A. ControlHF registers as a Class II medical device software under FDA's Digital Health Center of Excellence framework. Platform expands to 12 health systems across 6 states. Dr. Marcus Webb joins as Chief Medical Officer.
2023
Peer-reviewed validation in NEJM Heart Failure
A 14-center prospective study co-authored by ControlHF's medical team publishes in NEJM Heart Failure, demonstrating 92% sensitivity for decompensation detection and 35% reduction in 90-day readmissions. The paper becomes one of the most-cited RPM studies of the year.
2024
10,000 active patients & health system partnerships
ControlHF surpasses 10,000 active monitored patients. Strategic partnerships signed with Mayo Clinic, Northwell Health, and OSF Healthcare. CMS confirms RPM billing pathway for ControlHF-supported programs, unlocking sustainable revenue models for clinic partners.
2026
$24M Series B led by a16z Bio
Andreessen Horowitz Bio leads a $24M Series B as ControlHF prepares to expand into LVAD and cardiac resynchronization monitoring, and launches the ControlHF Enterprise API for EHR-native integration with Epic and Cerner. Now serving patients in 38 states.

Want to help fix heart failure? Join us.

We're a small team solving a large problem. If you believe outcomes can be radically better, we'd like to talk.

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