This location is operating as ProEx Physical Therapy.

431 River Street, Unit 4
Waltham, MA 02453

Phone: 781-314-1000
Fax: 781-314-1001

Office Hours

Monday – Thursday
7:00 am – 7:00 pm

7:00 am – 2:00 pm

ProEx Physical Therapy in Waltham is a leading provider of Physical Therapy in Massachusetts.

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Allison Stringer MSPT
Allison Stringer MSPT

Regional Clinical Director/Clinical Manager


  • Masters Degree, Physical Therapy, Simmons College


  • Fellow of the American Academy of Orthopedic Manual Physical Therapists
  • Sports Medicine Society of the USFSA
  • Professional Skaters Association
  • Colonial Figure Skating Club in Boxborough and North Shore Skating Club

Clinical Interest

  • Writing articles on Sports Medicine for Skating Magazine and Professional Skaters Magazine
  • Guest lecturer on Strength Training and Injury Prevention at Professional Skaters Association seminars and US Figure Skating Regional Training Camps



David Melchiorri DPT, FAAOMPT
David Melchiorri DPT, FAAOMPT

Clinical Manager


  • Bachelors Degree, Health Science,
  • Doctorate Degree, Physical Therapy,  Boston University


  • Level one and Level two of the Institute of Orthopedic Manual Therapy
  • Boston University Orthopedic Manual Therapy program
  • American Academy of Orthopedic Manual Therapy (Fellow)

Clinical Interest

  • Treatment progression for a multi-structure knee injury
  • Teaching, Boston University Physical Therapy Program Spine course
  • Teaching 3rd year doctorate students on Evidence Based Thoracic Manual Therapy and it's implications with back pain, neck pain, and overhead throwing athletes