Rebuild. Recover. Return to the life you love.
Steamcell combines ultrasound-guided stem cell and PRP therapy with same-day diagnostics in a calm, physician-run clinic in Eastchester, NY.
- Board-eligible physician
- Ultrasound-guided care
- Same-day diagnostics
Today's clinic
Mack Lee Sullivan, MD, MS
Diagnosis-first visits
Ultrasound and, where indicated, EMG/NCV guide the diagnosis before any procedure is planned.
Shared decision-making
Options, alternatives, uncertainty, and expected timelines are discussed in plain language before you choose.
Independent educational library
Dr. Mack also publishes the SCE Educational Library: a non-promotional, evidence-first reference on regenerative medicine.
HIPAA-compliant
Audited privacy & security
Physician-led care
Every injection, every infusion
Same-day diagnostics
Ultrasound, EMG, labs on site
Westchester patients
A decade of local care
Regenerative care, performed by a physician.
Every procedure uses ultrasound guidance. Every plan is built around a real diagnosis — not a shortcut.
Stem Cell Therapy
Physician-administered mesenchymal cord stem cell preparations, delivered IV or by ultrasound guidance into the targeted joint.
PRP & Exosomes
Platelet-rich plasma and exosome therapy to support tissue healing in tendons, ligaments and joints.
Ultrasound-Guided Trigger Point Injections
Precise relief for dense muscle spasm driven by cervical, lumbar or thoracic radiculopathy.
EMG / NCV Diagnostics
In-office electromyography and nerve-conduction studies to identify radiculopathy, carpal tunnel and peripheral neuropathy.
IV Therapy & Hydration
Physician-supervised IV hydration and nutrient support in a calm, monitored setting.
A clear journey — from first call to full return.
Comprehensive consult
A one-hour visit with the physician, focused exam, and same-day musculoskeletal ultrasound.
Precise diagnosis
Where indicated, EMG/NCV and point-of-care imaging confirm the pain generator before any treatment.
Personalised plan
A staged plan combining regenerative options, interventional care and conservative management.
Return to activity
Structured return-to-sport or return-to-life progression with checkpoint visits.
Common reasons patients come to Steamcell.
If your condition is not listed, call us — we treat many musculoskeletal and nerve-related issues beyond those shown here.
Knee Osteoarthritis
Chronic knee pain, swelling and stiffness driven by cartilage wear, often with underlying patellar tendinitis.
Learn moreShoulder & Rotator Cuff Pain
Partial-thickness rotator cuff tears, labral injury, impingement and chronic effusion.
Learn moreNeck & Back Pain
Cervical and lumbar radiculopathy, disc disorders, dense muscle spasm and chronic cervicalgia.
Learn moreSports & Overuse Injuries
Tendinopathy, partial tears, acute sprains and chronic overuse injuries in weekend athletes and competitors.
Learn moreThe SCE Educational Library — read the evidence.
A neutral, non-promotional reference on stem-cell, extracellular-vesicle, and regenerative-medicine topics, written by Dr. Mack Sullivan under an evidence-first editorial protocol.
Answers before you call.
Have a question we have not covered? Reach out — we aim to reply the same business day.
Next steps
A one-hour consult is the fastest way to a clear plan.
Same-day diagnostics. Transparent plans. Physician-performed procedures.