Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Blake Steven Radtke, DPT

Physical Therapist in Duluth, MN · enumerated 2023.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1972292340

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Registry record

Entity type Individual (Type 1)

Name Mr. Blake Steven Radtke

Credential DPT

Sex Male

Practice address 407 E 3rd St, Duluth, MN, 55805

Phone (218) 786-8364

Enumeration date May 2, 2023

Last updated in NPPES May 2, 2023

Taxonomy & licenses

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers Primary

DPT · Doctor of Physical Therapy: A physical therapist holding the clinical doctorate now standard for the profession. About the DPT 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.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify Blake Radtke's NPI record?

Cross-check NPI 1972292340 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1972292340 active?

Yes, as of the latest NPPES snapshot, NPI 1972292340 is active (record last updated 2023-05-02).

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Traci Rogers Family Nurse Practitioner · Duluth, MN NPI 1841293347 Debbi Peters Neonatal Nurse Practitioner · Duluth, MN NPI 1003890138 Patrick Riley Physician Assistant · Duluth, MN NPI 1790765253 John Holst Emergency Medicine Physician · Duluth, MN NPI 1669442406 Peter Chase Emergency Medicine Physician · Duluth, MN NPI 1063485563 Michael Sassman Vascular & Interventional Radiology Physician · Duluth, MN NPI 1841263803 Lynn Howard Emergency Medicine Physician · Duluth, MN NPI 1942276209 John Degelau Hospitalist Physician · Duluth, MN NPI 1063489375

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-05-02.