Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Tyler Greffrath, DPT
Physical Therapist in Boston, MA · enumerated 2023.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1649986266
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Registry record
Entity type Individual (Type 1)
Name Tyler Greffrath
Credential DPT
Sex Male
Practice address 1 Braintree St, Boston, MA, 02134
Phone (617) 787-8700
Fax (617) 787-8106
Enumeration date Jan 26, 2023
Last updated in NPPES Jan 26, 2023
Taxonomy & licenses
225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 26575 (MA) Primary
DPT · Doctor of Physical Therapy: A physical therapist holding the clinical doctorate now standard for the profession.
About the DPT credential
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
What specialty is Tyler Greffrath?
Tyler Greffrath is registered in NPPES with the primary taxonomy of Physical Therapist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
Other providers at this practice address
Browse all → Paul R Clark Customized Equipment (DME) · Allston, MA NPI 1851577795 David Merson Physical Therapist · Allston, MA NPI 1356674881 Mael Chiropractic, P.C. Chiropractor · Allston, MA NPI 1578873659 Michelle Perry Physical Therapist · Allston, MA NPI 1457793606 Michael Bachner Physical Therapist · Boston, MA NPI 1932616315 Jason Schoenfelder Physical Therapist · Boston, MA NPI 1932608692 Michael Geiger Physical Therapist · Boston, MA NPI 1982163614 Kristen Davis Physical Therapist · Boston, MA NPI 1912772815
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-01-26.