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Conditions · Nassau County, NY

Plantar fasciitis &
heel pain.

At a glance

Plantar fasciitis is pain in the tissue supporting the foot arch, typically felt beneath the heel during the first steps after rest. Institute of Function starts with diagnosis and rehabilitation, considering the least invasive effective option and procedures only when examination supports them. Dr. Benjamin (Ben) Klyachman, D.O., board-certified in pain medicine and physical medicine and rehabilitation, leads care at Institute of Function in Nassau County, NY, which welcomes patients from across Long Island, New York City and beyond.

Plantar fasciitis causes pain under the heel that is often worst with the first steps of the morning or after prolonged sitting. It reflects overload of the thick band of tissue supporting the arch, and similar pain can come from heel fat pad problems, nerve irritation or, less often, a stress injury. Identifying the true source of heel pain keeps treatment focused and avoids months of ineffective stretching alone.

Medically reviewed by Dr. Ben Klyachman, D.O. · Updated October 21, 2026

Common causes

  • A rapid increase in walking, running or standing time.
  • Calf tightness or reduced ankle motion increasing strain on the fascia.
  • Footwear that poorly supports the load placed on the heel.
  • Prolonged standing on hard surfaces at work.
  • Less commonly, nerve entrapment, stress injury or inflammatory conditions.

How we evaluate

History covers the pattern of morning pain, activity changes, footwear and previous treatments. A hands-on osteopathic and physiatric examination assesses fascial and heel tenderness, ankle motion, calf flexibility, foot strength and gait, and screens for nerve involvement. Diagnostic ultrasound can measure fascial thickness and identify tears, while imaging is considered when a stress injury or another diagnosis is suspected. Persistent atypical pain may warrant additional assessment before routine care proceeds.

Treatment options
we may discuss.

  • Performance Health / rehabilitation

    Rehabilitation centers on progressive loading of the foot and calf, which has stronger support than stretching alone, along with footwear and activity modification. Taping or night splints may be discussed for selected cases. Most heel pain resolves with structured nonsurgical care; a surgical opinion is sought only when confirmed plantar fasciitis persists despite a thorough program.

  • Regenerative & Cell-Based Medicine

    When appropriate, PRP may be discussed for persistent plantar fasciitis that has not responded to loading-based care, with evidence that varies between studies. Cell-based and biologic options require a separate review of evidence, risks and applicable law. Any injection is considered an adjunct to rehabilitation rather than a substitute for restoring load tolerance.

  • Targeted Pain Management

    Medication review and precise, ultrasound-guided procedures may be discussed for persistent cases. When it's needed, a steroid injection can calm a clearly inflamed fascia, used judiciously because of the risk of tissue weakening or rupture with repeated injections. Nerve-targeted procedures are reserved for a relevant focal indication. Procedures are image-guided, using ultrasound or X-ray guidance depending on the target.

Common
questions.

When to seek
care urgently.

Seek urgent care for inability to bear weight after injury, a hot swollen foot with fever, or heel pain with numbness, color change or a cold foot.

This page is general information, not medical advice. Individual results vary. Medical Disclaimer

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