Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ellen Waidner, PT, DPT
Physical Therapist in Plainview, NY · enumerated 2022.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1659004950
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Ellen Waidner
Credential PT, DPT
Sex Female
Practice address 651 Old Country Rd Ste 200, Plainview, NY, 11803
Phone (516) 681-8822
Enumeration date Jul 5, 2022
Last updated in NPPES Jul 5, 2022
Taxonomy & licenses
225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 048837 (NY) 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
What specialty is Ellen Waidner?
Ellen Waidner 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 → William Facibene Orthopaedic Hand Surgery Physician · Plainview, NY NPI 1699862268 Daniel Seidman Orthopaedic Surgery Physician · Plainview, NY NPI 1952696304 Adam Nestor Physical Therapist · Plainview, NY NPI 1437505278 Alexander Udey Occupational Therapist · Plainview, NY NPI 1518520329 Melissa Riback Physical Therapist · Plainview, NY NPI 1811625429
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-07-05.