Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Susan Mazzaferro-Knowles, PT
Physical Therapist in Lynnwood, WA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1881641942
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Registry record
Entity type Individual (Type 1)
Name Susan Mazzaferro-Knowles
Credential PT
Sex Female
Practice address 3005 Alderwood Mall Pkwy, Ste 100, Lynnwood, WA, 98036
Phone (206) 979-1413
Fax (425) 771-2425
Enumeration date May 27, 2006
Last updated in NPPES Mar 26, 2020
Taxonomy & licenses
225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License PT00005338 (WA) 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 is the NPI number for Susan Mazzaferro-Knowles?
The National Provider Identifier (NPI) for Susan Mazzaferro-Knowles is 1881641942, a Type 1 (individual) record in the CMS NPPES registry.
Where does Susan Mazzaferro-Knowles practice?
The practice location on file with NPPES is in Lynnwood, WA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Rachael Scott Massage Therapist · Lynnwood, WA NPI 1417093311 B.M.D Corporation Community/Retail Pharmacy · Lynnwood, WA NPI 1265575773 Valeriy Beliy Dmd, Pllc Dentist · Lynnwood, WA NPI 1649589813 Mindful Movement Physical Therapy, LLC Physical Therapist · Lynnwood, WA NPI 1346684792 Vital Life Sciences, Pllc Naturopath · Lynnwood, WA NPI 1164369559
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-03-26.