Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

WILLIAM HJALMER HANSEN RDCS
NPI 1386540045
Specialist/Technologist Cardiovascular - Sonography in Rochester, MN

Q: What is William Hansen's NPI number?

The NPI number for William Hansen is 1386540045. It was assigned to this individual provider in the NPPES registry on October 19, 2026.

Q: What is William Hansen's specialty?

The primary specialty registered for this NPI is Specialist/Technologist Cardiovascular, specializing in Sonography, with taxonomy code 246XS1301X.

Q: When was this NPI record last updated?

The NPPES record for William Hansen was last updated on October 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 days 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.

Active since October 19, 2026

2408 VIOLA HEIGHTS DR NE, ROCHESTER, MN 55906(507) 259-4855 Get Directions Write a Review

NPPES record added: October 19, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About William Hjalmer Hansen Rdcs NPPES

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

WILLIAM HJALMER HANSEN RDCS (NPI 1386540045) is an individual sonography provider in Rochester, Minnesota, licensed in Minnesota (33960) and active in the NPI registry since October 2026.

NPPES Registry Identity

NPI1386540045

Entity TypeIndividualMale

Primary Taxonomy246XS1301X

Provider Legal NameWILLIAM HJALMER HANSENCredential: RDCS

Location Address2408 VIOLA HEIGHTS DR NERochester, MN 55906-6941

Mailing Address2408 Viola Heights Dr NeRochester, MN 55906-6941

Phone(507) 259-4855

Sole ProprietorNo

Enumeration DateOctober 19, 2026

NPPES CertifiedOctober 19, 2026

✔ NPI 1386540045 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpecialist/Technologist Cardiovascular · SonographyTechnologists, Technicians & Other Technical Service Providers

Taxonomy Code246XS1301X

License✔ Licensed in MN · 33960

2408 VIOLA HEIGHTS DR NE, Rochester, MN 55906

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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 William Hansen's NPI number?

The NPI number for William Hansen is 1386540045. It was assigned to this individual provider in the NPPES registry on October 19, 2026.

Where is William Hansen located?

William Hansen practices at 2408 Viola Heights Dr NE, Rochester, MN 55906. The listed phone number is (507) 259-4855.

What is William Hansen's specialty?

The primary specialty registered for this NPI is Specialist/Technologist Cardiovascular, specializing in Sonography, with taxonomy code 246XS1301X.

When was this NPI record last updated?

The NPPES record for William Hansen was last updated on October 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 days 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.