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

Matthew Peter Griffin, DPT

Individual provider Physical Therapist · NPI 1427478320

Matthew Peter Griffin, DPT is registered under Physical Therapist in Private Practice in Washington, District of Columbia. Graduated from Marymount University in 2013, 13 years ago. Practices with Mass General Brigham Medical Group, Inc, a 140-clinician group and accepts Medicare assignment.

Years since qualifying
13
Trained at
Marymount University
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

600 Pennsylvania Ave SE Ste 202
Washington, DC 20003-4425 Not confirmed with CMS for 12 years — call before visiting
Phone: (202) 543-9400
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Physical Therapist (primary) Taxonomy 225100000X

Record details

NPI number1427478320
Entity typeIndividual (Type 1)
GenderMale
Credentials DPT
Sole proprietorNo
NPI enumeratedApril 18, 2014
Last updated in NPPESAugust 12, 2014

Medicare enrollment

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

Medicare specialtyPHYSICAL THERAPIST IN PRIVATE PRACTICE
Medical schoolMARYMOUNT UNIVERSITY
Graduated 2013 (13 years in practice)
Group practice Mass General Brigham Medical Group, Inc. — 140 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 patients102
Services billed 1,067 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 Mass General Brigham Medical Group, Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 140 clinicians in the practice; 12 are shown here.

Other providers in Washington