MARISSA KIEFER D.P.T.
NPI 1528608965
Physical Therapist in Middle Island, NY

Active since January 14, 2020
35 LONGWOOD RD, MIDDLE ISLAND, NY 11953(631) 924-0008(631) 924-4602 Get Directions Write a Review

NPPES record last updated: July 9, 2025. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Jul 9, 2025, Jun 15, 2023, Jun 1, 2023 and 2 more (5 updates tracked since 2020).

About Marissa Kiefer D.p.t. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARISSA KIEFER D.P.T. (NPI 1528608965) is an individual physical therapist in Middle Island, New York, licensed in New York (045266) and active in the NPI registry since January 2020. She maintains 3 additional practice locations.

NPPES Registry Identity

NPI1528608965
Entity TypeIndividualFemale
Primary Taxonomy225100000X
Provider Legal NameMARISSA KIEFERCredential: D.P.T.
Location Address35 LONGWOOD RDMiddle Island, NY 11953-2045
Mailing Address35 Longwood RdMiddle Island, NY 11953-2045 · (631) 924-0008 · Fax (631) 924-4602
Fax(631) 924-4602
Sole ProprietorNo
Enumeration DateJanuary 14, 2020
Last NPPES UpdateJuly 9, 20255 updates tracked since enumeration
NPPES CertifiedJuly 9, 2025
NPI 1528608965 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPhysical TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
Taxonomy Code225100000X
License Licensed in NY · 045266
Definition

Physical therapists (PTs) are licensed health care professionals who diagnose and treat individuals of all ages, from newborns to the very oldest, who have medical problems or other health-related conditions that limit their abilities to move and perform functional activities in their daily lives. PTs examine each individual and develop a plan using treatment techniques to promote the ability to move, reduce pain, restore function, and prevent disability. In addition, PTs work with individuals to prevent the loss of mobility before it occurs by developing fitness- and wellness-oriented programs for healthier and more active lifestyles. PTs:<ul><li>Diagnose and manage movement dysfunction and enhance physical and functional abilities.</li><li>Restore, maintain, and promote not only optimal physical function but optimal wellness and fitness and optimal quality of life as it relates to movement and health.</li><li>Prevent the onset, symptoms, and progression of impairments, functional limitations, and disabilities that may result from diseases, disorders, conditions, or injuries.</li><li>Treat conditions of the musculoskeletal, neuromuscular, cardiovascular, pulmonary, and/or integumentary systems.</li><li>Address the negative effects attributable to unique personal and environmental factors as they relate to human performance.</li></ul>PTs provide care for people in a variety of settings, including hospitals, private practices, outpatient clinics, home health agencies, schools, sports and fitness facilities, work settings, and nursing homes. State licensure is required in each state in which a PT practices.

35 LONGWOOD RD, Middle Island, NY 11953

Secondary Practice Locations 3

Location 1400 W Main St Ste 340Babylon, NY 11702-3009 · Phone (631) 661-3180 · Fax (631) 661-3183
Location 2191 Patchogue Yaphank RdEast Patchogue, NY 11772-4899 · Phone (631) 775-0971
Location 3518 E Main St Ste 100Riverhead, NY 11901-2529 · Phone (631) 591-0838 · Fax (631) 727-0678

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Therapy procedure using functional activities 97530
A therapy procedure using functional activities encourages you to use your own body movements in day-to-day tasks to aid recovery. It aims to improve your mobility, strength, and overall health by incorporating therapeutic exercises into your routine.
157 services73 patients
Therapy procedure to re-educate brain-to-nerve-to-muscle function, each 15 minutes 97112
This therapy helps retrain your brain, nerves, and muscles to work together. Through targeted exercises, your body learns to regain lost functions or improve current abilities. Each session lasts 15 minutes.
154 services72 patients
Therapy procedure using manual technique, each 15 minutes 97140
This therapy involves using hands-on techniques to help improve your body's movement and function. These techniques may include stretching, resistance exercises, or gentle pressure. Each session lasts 15 minutes and aims to relieve pain, promote healing, and improve your overall health.
152 services71 patients
Therapy procedure using exercise to develop strength, endurance, range of motion, and flexibility, each 15 minutes 97110
This therapy involves exercises to boost strength, endurance, flexibility, and range of motion. Each session lasts 15 minutes. The goal is to improve physical function and overall health. It's a safe, beneficial method for enhancing well-being and fitness.
150 services69 patients
Electrical stimulation (unattended), to one or more areas for indication(s) other than wound care, as part of a therapy plan of care G0283
Electrical stimulation is a therapy method where mild electrical pulses are used to treat pain or stimulate muscles in certain areas. It's not for wound care but is part of a broader therapy plan. It's safe, non-invasive, and can help improve overall health.
53 services22 patients

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Nurse Practitioner (Family)
35 LONGWOOD RD
MIDDLE ISLAND, NY 11953
Speech-Language Pathologist
35 LONGWOOD RD
MIDDLE ISLAND, NY 11953
Speech-Language Pathologist
35 LONGWOOD RD
MIDDLE ISLAND, NY 11953
Speech-Language Pathologist
35 LONGWOOD RD
MIDDLE ISLAND, NY 11953
Social Worker (School)
35 LONGWOOD RD
MIDDLE ISLAND, NY 11953
Speech-Language Pathologist
35 LONGWOOD RD
MIDDLE ISLAND, NY 11953
Speech-Language Pathologist
35 LONGWOOD RD
MIDDLE ISLAND, NY 11953
Social Worker (Clinical)
35 LONGWOOD RD
MIDDLE ISLAND, NY 11953

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Marissa Kiefer's NPI number?

The NPI number for Marissa Kiefer is 1528608965. It was assigned to this individual provider in the NPPES registry on January 14, 2020.

Where is Marissa Kiefer located?

Marissa Kiefer practices at 35 Longwood Rd, Middle Island, NY 11953. The listed phone number is (631) 924-0008.

What is Marissa Kiefer's specialty?

The primary specialty registered for this NPI is Physical Therapist with taxonomy code 225100000X.

When was this NPI record last updated?

The NPPES record for Marissa Kiefer was last updated on July 9, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.