Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Marcin Swiderski, P.T.
Physical Therapist in Denver, CO · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1366567711
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Registry record
Entity type Individual (Type 1)
Name Marcin Swiderski
Credential P.T.
Sex Male
Practice address 420 E 58th Ave, Denver, CO, 80216
Phone (615) 778-4066
Fax (615) 778-9114
Enumeration date Mar 21, 2007
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 4534 (CO) 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 Marcin Swiderski practice?
The practice location on file with NPPES is in Denver, CO. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Marcin Swiderski?
The National Provider Identifier (NPI) for Marcin Swiderski is 1366567711, 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 2007-07-08.