Meet Our Team

Developmental Steps employs experienced pediatric physical therapists who are movement specialists.
Our therapists have specialized skills and training to address the unique needs
of infants, toddlers, and young children. We strive to facilitate the posture, strength, and symmetry
that will be the building blocks of movement for years to come. We provide thorough
assessments for each child prior to developing a comprehensive treatment plan.

Joseph R. Kiefer, PT

Physical Therapist/Founder/Owner

Hayley A. Apiscopa, DPT

Physical Therapist/Owner

Emma Costa , DPT

Physical Therapist

Tamra Rutfield, PT, DPT

Physical Therapist

Vita Dequatro, DPT

Physical Therapist

Deirdre Nebel

Physical Therapist

Diana Gomez Schneider, PTA, CMT

Physical Therapy Assistant

Tara Murphy, ATL, PTA

Physical Therapist Assistant

Sarah Santucci

Receptionist, Aide

Sofia DiNunzio

Receptionist Mount Kisco, Billing, Insurance advocate

Client Testimonials

Employment Opportunities

Developmental Steps is looking for a fun and exciting Per-Diem Pediatric PT to join the team!
The word is out that we are helping so many kids reach their potential – (we couldn’t be happier!).
We have two clinics: Mount Kisco and Port Chester. We also treat in several schools in central Westchester County.
If you are interested in working with us, let us know ASAP.
Email your resume to or give us a call at 914.939.6400.