Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ms. Mary Ellen Langdon, PT
Physical Therapist in Andover, MA · enumerated 2008.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1568629574
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Ms. Mary Ellen Langdon
Credential PT
Sex Female
Practice address 32 Osgood St, Andover, MA, 01810
Phone (978) 475-3806
Fax (978) 475-6288
Enumeration date May 19, 2008
Last updated in NPPES May 19, 2008
Taxonomy & licenses
225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 7466 (MA) Primary
PT · Physical Therapist: A licensed movement specialist treating injury and disability through exercise and rehabilitation.
About the PT 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
How do I verify Mary Langdon's NPI record?
Cross-check NPI 1568629574 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1568629574 active?
Yes, as of the latest NPPES snapshot, NPI 1568629574 is active (record last updated 2008-05-19).
Other providers at this practice address
Browse all → Partners in Child Development, Inc Early Intervention Provider Agency · Andover, MA NPI 1326114711 Julee Gibson Occupational Therapist · Andover, MA NPI 1871644245 Jennifer Parkhurst Clinical Social Worker · Andover, MA NPI 1174656334 Caitlin Burke Developmental Therapist · Andover, MA NPI 1386825461 Sandra Levine Clinical Social Worker · Andover, MA NPI 1831370782 Rena Ginsberg Clinical Social Worker · Andover, MA NPI 1811178494 Johelvi Diaz Developmental Therapist · Andover, MA NPI 1336320894 Jennifer Aronson Developmental Therapist · Andover, MA NPI 1659552149
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-05-19.