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Our Waltham facility was previously known 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 – 8:00 pm

7:00 am – 5:00 pm

8:00 am – 12:00 (September – May)

Professional Physical Therapy in Waltham, previously known as ProEx Physical Therapy, is a leading provider of Physical Therapy in Massachusetts.

Tim Genecco MS, PT
Tim Genecco MS, PT

Regional Director of Operations


  • Master's Degree, Physical Therapy, University of Miami
  • Bachelor's Degree, Biology, Fairfield University

Clinical Interests

  • Education
  • Teaching the PTA program at Florida’s Lynn University


David Melchiorri DPT, FAAOMPT
David Melchiorri DPT, FAAOMPT

Clinical Manager


  • Doctoral Degree, Physical Therapy,  Boston University
  • Bachelor's Degree, Health Science


  • 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