Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. David Adam Klein, DPT
Physical Therapist in Mattapan, MA · enumerated 2020.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1811504210
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Registry record
Entity type Individual (Type 1)
Name Dr. David Adam Klein
Credential DPT
Sex Male
Practice address 10 Fairway St, Mattapan, MA, 02126
Phone (617) 298-2225
Fax (617) 298-2226
Enumeration date Sep 29, 2020
Last updated in NPPES Nov 11, 2022
Taxonomy & licenses
225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 26123 (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 is the NPI number for David Klein?
The National Provider Identifier (NPI) for David Klein is 1811504210, a Type 1 (individual) record in the CMS NPPES registry.
Where does David Klein practice?
The practice location on file with NPPES is in Mattapan, MA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-11-11.