Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mark Greenberg, PT
Physical Therapist in Milford, MA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1285689927
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Registry record
Entity type Individual (Type 1)
Name Mark Greenberg
Credential PT
Sex Male
Practice address 37 Birch St, Milford, MA, 01757
Phone (508) 473-0862
Fax (508) 473-3229
Enumeration date May 23, 2006
Last updated in NPPES Feb 5, 2019
Taxonomy & licenses
225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers Secondary
225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 15483 (MA) Primary
PT · Physical Therapist: A licensed movement specialist treating injury and disability through exercise and rehabilitation.
About the PT credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 15483 | Other | MA | PT |
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
Where does Mark Greenberg practice?
The practice location on file with NPPES is in Milford, MA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Mark Greenberg?
The National Provider Identifier (NPI) for Mark Greenberg is 1285689927, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-02-05.