Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Marissa Kiefer, DPT

Individual provider Physical Therapist · NPI 1528608965

Marissa Kiefer, DPT is a Physical Therapist in Middle Island, New York. Works from 4 locations. Licensed in New York.

Licensed in
NY
In the registry since
2020
What do these letters mean?
DPT — Doctor of Physical Therapy
The doctoral degree now required to enter physical therapy practice.

See every abbreviation used in this directory →

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Practice location Address checks out

35 Longwood Rd
Middle Island, NY 11953-2045
Phone: (631) 924-0008
Fax: (631) 924-4602
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (3)

  • 400 W Main St Ste 340, Babylon, NY 11702-3009 — (631) 661-3180
  • 191 Patchogue Yaphank Rd, East Patchogue, NY 11772-4899 — (631) 775-0971
  • 518 E Main St Ste 100, Riverhead, NY 11901-2529 — (631) 591-0838

Specialties & licences

Physical Therapist (primary) Taxonomy 225100000X · Licence 045266 (NY)

Record details

NPI number1528608965
Entity typeIndividual (Type 1)
GenderFemale
Credentials DPT
Sole proprietorNo
NPI enumeratedJanuary 14, 2020
Last updated in NPPESJuly 9, 2025
Certification dateJuly 9, 2025
Mailing address35 Longwood Rd, Middle Island, NY 11953-2045

Other providers in Middle Island