Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mrs. Marne Ruth Waldo, PT
Physical Therapist in Blackduck, MN · enumerated 2010.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1396053435
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Registry record
Entity type Individual (Type 1)
Name Mrs. Marne Ruth Waldo
Credential PT
Sex Female
Practice address 172 Summit Ave W, Blackduck, MN, 56630
Phone (218) 835-3425
Fax (218) 835-3433
Enumeration date Sep 23, 2010
Last updated in NPPES Sep 23, 2010
Taxonomy & licenses
225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 6649 (MN) 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
Where does Marne Waldo practice?
The practice location on file with NPPES is in Blackduck, MN. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Marne Waldo?
The National Provider Identifier (NPI) for Marne Waldo is 1396053435, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-09-23.