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STEPHEN PAUL KLASSEN PT, MPT, CERT. MDT
NPI 1558489385
Physical Medicine & Rehabilitation - Neuromuscular Medicine in Norman, OK

Active since March 27, 2007Accepts Medicare Assignment
2201 TRAE YOUNG DR, NORMAN, OK 73069(405) 515-8080 Get Directions Write a Review

NPPES record last updated: April 9, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Stephen Paul Klassen Pt, Mpt, Cert. Mdt NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

STEPHEN PAUL KLASSEN PT, MPT, CERT. MDT (NPI 1558489385) is an individual neuromuscular medicine provider in Norman, Oklahoma, licensed in Oklahoma (3538) and active in the NPI registry since March 2007. He is a graduate of Other (2002).

NPPES Registry Identity

NPI1558489385
Entity TypeIndividualMale
Primary Taxonomy2081N0008X
Provider Legal NameSTEPHEN PAUL KLASSENCredential: PT, MPT, CERT. MDT
Location Address2201 TRAE YOUNG DRNorman, OK 73069-5090
Mailing Address2201 Trae Young DrNorman, OK 73069-5090 · (405) 515-8080
Phone(405) 515-8080
Sole ProprietorNo
Medical School CMSOtherGraduated 2002
Enumeration DateMarch 27, 2007
Last NPPES UpdateApril 9, 2025
NPPES CertifiedApril 9, 2025
✔ NPI 1558489385 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPhysical Medicine & Rehabilitation · Neuromuscular MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2081N0008X
License✔ Licensed in OK · 3538
Definition
A physician who specializes in neuromuscular medicine possesses specialized knowledge in the science, clinical evaluation and management of these disorders. This encompasses the knowledge of the pathology, diagnosis and treatment of these disorders at a level that is significantly beyond the training and knowledge expected of a general neurologist, child neurologist or physiatrist.
Also ListedPreventive Medicine · Occupational MedicineTaxonomy 2083X0100X · License 3538 (OK)
2201 TRAE YOUNG DR, Norman, OK 73069
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Oklahoma.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Stephen Paul Klassen Pt, Mpt, Cert. Mdt is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5799910287
PECOS Enrollment IDI20131111000093

Medicare Billing Reassignment

Medicare enrollment records show Stephen Klassen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Ortho Central
1.8 mi
Radiology
3400 W TECUMSEH RD STE 104
Norman, OK 73072
  • Reassigned Medicare billing, Oklahoma enrollment
  • 20 clinicians in this Medicare group
NPI 1134869548 (405) 360-6764

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Stephen Klassen's NPI number?

The NPI number for Stephen Klassen is 1558489385. It was assigned to this individual provider in the NPPES registry on March 27, 2007.

Where is Stephen Klassen located?

Stephen Klassen practices at 2201 Trae Young Dr, Norman, OK 73069. The listed phone number is (405) 515-8080.

What is Stephen Klassen's specialty?

The primary specialty registered for this NPI is Physical Medicine & Rehabilitation, specializing in Neuromuscular Medicine, with taxonomy code 2081N0008X.

Is Stephen Klassen enrolled in Medicare?

Yes. Stephen Klassen is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Stephen Klassen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Stephen Klassen reassigns Medicare benefits to Ortho Central (Norman, OK). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Stephen Klassen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Stephen Klassen accept?

Health plans from Blue Cross and Blue Shield of Oklahoma list Stephen Klassen as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Stephen Klassen was last updated on April 9, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.