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

What you get

Everything you need, in one relationship.

Your Physician, On Call

Holistic care, in-person or virtual — from acute needs and prescriptions to proactive optimization.

Your Physician, On Call

Holistic care, in-person or virtual — from acute needs and prescriptions to proactive optimization.

Your Physician, On Call

Holistic care, in-person or virtual — from acute needs and prescriptions to proactive optimization.

Advanced Diagnostics

Comprehensive biomarker testing for hormones, metabolism, inflammation, and more — available from the comfort of home.

Advanced Diagnostics

Comprehensive biomarker testing for hormones, metabolism, inflammation, and more — available from the comfort of home.

Advanced Diagnostics

Comprehensive biomarker testing for hormones, metabolism, inflammation, and more — available from the comfort of home.

Personalized Protocols

Customized plans built around your biology — including hormones, peptides, supplements, and aesthetic treatments.

Personalized Protocols

Customized plans built around your biology — including hormones, peptides, supplements, and aesthetic treatments.

Personalized Protocols

Customized plans built around your biology — including hormones, peptides, supplements, and aesthetic treatments.

Concierge Experience

Direct access, priority scheduling, and care coordination — all through one continuous relationship.

Concierge Experience

Direct access, priority scheduling, and care coordination — all through one continuous relationship.

Concierge Experience

Direct access, priority scheduling, and care coordination — all through one continuous relationship.

Long-term tracking

Continuous insights from your own data — enabling smarter, tailored adjustments as your body changes over time.

Long-term tracking

Continuous insights from your own data — enabling smarter, tailored adjustments as your body changes over time.

Long-term tracking

Continuous insights from your own data — enabling smarter, tailored adjustments as your body changes 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.

Book an appointment

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.

Meet Matt Renart

Member experience and co-founder

Matt Renart is your dedicated partner for all things outside the exam room.

He serves as your point of contact for personalized guidance, logistics, and accountability, helping you get the most from your Catalyst experience.

From onboarding through every milestone, Matt is here to simplify the process and ensure your journey feels supported, connected, and clear.

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.

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

Email

info@catalystprecision.com

Telephone

201-299-4607