Why Catalyst

You're ready to go beyond normal. Standard care isn't.

All-in-one medical care + health optimization:

  • Improve body composition and metabolism

  • Restore skin and hair

  • Boost libido and performance

  • Sharpen energy, focus, and mood

  • Get primary and acute care - all through one trusted doctor

How we're different

Your physician comes to you. Everything else follows.

Catalyst is the first longevity service that brings lab testing, physician visits, and personalized protocols into your home - with one doctor who knows your biology and adjusts your care over time.

Catalyst is the first longevity service that brings lab testing, physician visits, and personalized protocols into your home - with one doctor who knows your biology and adjusts your care over time.

Catalyst
Precision

Function
Health

Telehealth

Him's, Ro

DTC Lab Kits

Everlywell

Longevity Clinics

Fountain Life

In-home lab draws

One dedicated physician

On-demand doctor

Personalized evolving protocols

Diagnostics
that matter

Ongoing tracking

What you get

Everything you need, in one relationship.

Everything you need, in one relationship.

Care That Comes to You

A clinician comes to you, draws your labs, and your physician reviews everything, all on your schedule.

Care That Comes to You

A clinician comes to you, draws your labs, and your physician reviews everything, all on your schedule.

Your Doctor, On Demand

One physician. Yours. Direct access when you need it. The same doctor, every time.

Your Doctor, On Demand

One physician. Yours. Direct access when you need it. The same doctor, every time.

Diagnostics That Actually Matter

We test what changes outcomes and track it over time. No filler panels, no wasted data.

Diagnostics That Actually Matter

We test what changes outcomes and track it over time. No filler panels, no wasted data.

Protocols Built for Your Biology

Your plan is built around your labs, your history, and your goals, then adjusted as your body changes.

Protocols Built for Your Biology

Your plan is built around your labs, your history, and your goals, then adjusted as your body changes.

Ongoing, Not One-Time

Quarterly retesting so your physician catches shifts early and keeps your protocol dialed in over time.

Ongoing, Not One-Time

Quarterly retesting so your physician catches shifts early and keeps your protocol dialed in over time.

How it works

Working together

Step 1

Comprehensive Intake

Meet 1:1 with your physician virtually to review symptoms, history, and goals.

Step 1

Comprehensive Intake

Meet 1:1 with your physician virtually to review symptoms, history, and goals.

Step 1

Comprehensive Intake

Meet 1:1 with your physician virtually to review symptoms, history, and goals.

Step 2

Advanced Diagnostics

Run 60+ biomarker panels from the comfort of your home or a partner lab — covering hormones, metabolism, inflammation, and more.

60+ biomarkers

Step 2

Advanced Diagnostics

Run 60+ biomarker panels from the comfort of your home or a partner lab — covering hormones, metabolism, inflammation, and more.

60+ biomarkers

Step 2

Advanced Diagnostics

Run 60+ biomarker panels from the comfort of your home or a partner lab — covering hormones, metabolism, inflammation, and more.

60+ biomarkers

Step 3

Personalized Protocol

Receive a tailored treatment and lifestyle plan based on your data, health history, and objectives — including prescriptions if needed.

Step 3

Personalized Protocol

Receive a tailored treatment and lifestyle plan based on your data, health history, and objectives — including prescriptions if needed.

Step 4

Long-term Optimization

Quarterly retesting, ongoing support, and real-time adjustments as your body evolves — all guided by your physician.

Step 4

Long-term Optimization

Quarterly retesting, ongoing support, and real-time adjustments as your body evolves — all guided by your physician.

Step 4

Long-term Optimization

Quarterly retesting, ongoing support, and real-time adjustments as your body evolves — all guided by your physician.

Work with us

Start with a personalized health consultation.

Get a full medical evaluation, lab recommendations, and a tailored plan built around your goals. Discuss next steps, care options, and how Catalyst can support your long-term optimization.

Get a full medical evaluation, lab recommendations, and a tailored plan built around your goals. Discuss next steps, care options, and how Catalyst can support your long-term optimization.

Our team

The founding team of Catalyst Precision

Meet Dr. Westley Spiro

Lead doctor and co-founder

Dr. Westley Spiro is a Mt. Sinai board-certified emergency medicine physician with advanced training in Functional and Integrative Medicine through the Academy of Anti-Aging Medicine (A4M).

He blends a commitment to evidence-based care with a passion for medical education, empowering patients to actively understand and engage with their health.

Driven by measurable outcomes, Dr. Spiro focuses on what matters most: real symptom relief, proactive optimization, objective lab improvement, and sustainable, long-term vitality.

Testimonials

Real members. Real progress.

  • "I finally have a clear plan and data to track what’s actually working. My energy and sleep have noticeably improved.."

    Ryan, 44

  • "Everything is personalized, from labs to supplements to how I train. I’ve put on real muscle as a result."

    David, 32

  • "For the first time, I feel like I’m ahead of my health, not reacting to problems. My energy and focus are the best they’ve been in years."

    Alex, 41

FAQs

Answering your questions

Got more questions? Ask us below.

Do you accept insurance?

We do not accept insurance - this allows us to deliver holistic care without the limitations of insurance plans. Some lab tests and advanced diagnostics may be reimbursable, but this is not guaranteed.

Can I use HSA/FSA?

Yes. We provide itemized receipts upon request.

Where do I go for labs?

We offer home phlebotomy draws at your home, included in the cost of service.

What’s included in the membership?

Quarterly labs, personalized plans, clinician access, prescriptions, and care coordination.

Do you offer primary care?

Your Catalyst physician provides 360 care, including comprehensive primary and acute care. Members have access to a referral network for specialized care.

Contact

Get in touch

Office

Catalyst Precision Health
131 Essex St Floor 2, New York, NY 10002

Catalyst Precision Health
131 Essex St Floor 2, New York, NY 10002

Telephone

201-299-4607