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

Dr. Mary Jean Stack, DPT

Individual provider Physical Therapist · NPI 1508262734

Dr. Mary Jean Stack, DPT is registered under Physical Therapist in Private Practice in Great Falls, Virginia. Qualified in 2014, 12 years ago. Practices with Great Falls Physical Therapy LLC, an 8-clinician group and works from 2 locations. Licensed in Virginia.

Years since qualifying
12
Licensed in
VA
In the registry since
2014
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

766 Walker Rd Ste B
Great Falls, VA 22066-2650
Phone: (202) 349-1030
Fax: (703) 364-5124
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 10135 Colvin Run Rd Ste 100, Great Falls, VA 22066-1872 — (703) 349-1030

Specialties & licences

Physical Therapist (primary) Taxonomy 225100000X · Licence 2305212350 (VA)

Record details

NPI number1508262734
Entity typeIndividual (Type 1)
GenderFemale
Credentials DPT
Sole proprietorYes
NPI enumeratedNovember 17, 2014
Last updated in NPPESJune 4, 2026
Certification dateJune 4, 2026

Medicare enrollment

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

Medicare specialtyPHYSICAL THERAPIST IN PRIVATE PRACTICE
Medical schoolOTHER
Graduated 2014 (12 years in practice)
Group practice Great Falls Physical Therapy Llc — 8 clinicians
Accepts Medicare assignment Not indicated
Practice locations2 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 patients21
Services billed 918 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

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 Great Falls Physical Therapy LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice.

Other providers in Great Falls