Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

WILLIAM RUMANCIK MD
NPI 1053524363
Radiology - Diagnostic Radiology in Wilmington, DE

Q: What is William Rumancik's NPI number?

The NPI number for William Rumancik is 1053524363. It was assigned to this individual provider in the NPPES registry on May 7, 2007.

Q: What is William Rumancik's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Q: When was this NPI record last updated?

The NPPES record for William Rumancik was last updated on August 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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 May 07, 2007

408 HAWTHORNE DR, WILMINGTON, DE 19802(917) 565-6505 Get Directions Write a Review

NPPES record last updated: August 2, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Aug 2, 2026, Jan 26, 2021, Sep 27, 2020 and 1 more (4 updates tracked since 2020).

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About William Rumancik Md NPPES

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

WILLIAM RUMANCIK MD (NPI 1053524363) is an individual diagnostic radiology provider in Wilmington, Delaware, licensed in Delaware (C1-0024032) and active in the NPI registry since May 2007.

NPPES Registry Identity

NPI1053524363

Entity TypeIndividualMale

Primary Taxonomy2085R0202X

Provider Legal NameWILLIAM RUMANCIKCredential: MD

Location Address408 HAWTHORNE DRWilmington, DE 19802-1242

Mailing Address408 Hawthorne DrWilmington, DE 19802-1242 · (917) 565-6505

Phone(917) 565-6505

Sole ProprietorYes

Enumeration DateMay 7, 2007

Last NPPES UpdateAugust 2, 20264 updates tracked since enumeration

NPPES CertifiedAugust 2, 2026

✔ NPI 1053524363 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians

Taxonomy Code2085R0202X

Licenses✔ Licensed in DE · C1-0024032✔ Licensed in CA · G152002✔ Licensed in NY · 142593

Definition

A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.

408 HAWTHORNE DR, Wilmington, DE 19802

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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 Rumancik's NPI number?

The NPI number for William Rumancik is 1053524363. It was assigned to this individual provider in the NPPES registry on May 7, 2007.

Where is William Rumancik located?

William Rumancik practices at 408 Hawthorne Dr, Wilmington, DE 19802. The listed phone number is (917) 565-6505.

What is William Rumancik's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

When was this NPI record last updated?

The NPPES record for William Rumancik was last updated on August 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.