Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Marie Mullen, PT

Individual provider Physical Therapist · NPI 1013950872

Marie Mullen, PT is registered under Physical Therapist in Private Practice in Newark, Delaware. Qualified in 1996, 30 years ago. Practices with Ati Holdings, LLC, a 439-clinician group and accepts Medicare assignment. Licensed in Delaware.

Years since qualifying
30
Licensed in
DE
In the registry since
2006
What do these letters mean?
PT — Physical Therapist
A licensed therapist who treats movement, pain and injury.

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Practice location Address checks out

4102 Ogletown Stanton Rd
Newark, DE 19713-4183
Phone: (302) 894-1800
Fax: (302) 894-1811
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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 J10001082 (DE)

Record details

NPI number1013950872
Entity typeIndividual (Type 1)
GenderFemale
Credentials PT
Sole proprietorNo
NPI enumeratedJune 13, 2006
Last updated in NPPESSeptember 29, 2026

Medicare enrollment

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

Medicare specialtyPHYSICAL THERAPIST IN PRIVATE PRACTICE
Medical schoolOTHER
Graduated 1996 (30 years in practice)
Group practice Ati Holdings, Llc — 439 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients107
Services billed 3,234 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 Ati Holdings, LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 439 clinicians in the practice; 12 are shown here.

Other providers in Newark