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.

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