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

Dr. Mary A.l. Gelder, DPT

Individual provider Physical Therapist · NPI 1730522715

Dr. Mary A.l. Gelder, DPT is registered under Physical Therapist in Private Practice in Milford, Delaware. Qualified in 2008, 18 years ago. Practices with Multicare Health System, a 2,302-clinician group and accepts Medicare assignment. Licensed in Delaware, Maryland, New York and Oregon.

Years since qualifying
18
Licensed in
DE, MD, NY, OR
In the registry since
2013
Specialties on file
4
What do these letters mean?
DPT — Doctor of Physical Therapy
The doctoral degree now required to enter physical therapy practice.

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Practice location Address checks out

329 Mullet Run
Milford, DE 19963-5373 Not confirmed with CMS for 13 years — call before visiting
Phone: (302) 424-1810
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Physical Therapist (primary) Taxonomy 225100000X · Licence J1-0002968 (DE)
Physical Therapist Taxonomy 225100000X · Licence 033833 (NY)
Physical Therapist Taxonomy 225100000X · Licence 06824 (OR)
Physical Therapist Taxonomy 225100000X · Licence 24206 (MD)

Record details

NPI number1730522715
Entity typeIndividual (Type 1)
GenderFemale
Credentials DPT
Sole proprietorYes
NPI enumeratedApril 9, 2013
Last updated in NPPESApril 9, 2013

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPHYSICAL THERAPIST IN PRIVATE PRACTICE
Medical schoolOTHER
Graduated 2008 (18 years in practice)
Group practice Multicare Health System — 2302 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations6 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients53
Services billed 179 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Colleagues at Multicare Health System

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2302 clinicians in the practice; 12 are shown here.

Other providers in Milford