Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Berit L Madsen, MD

Radiation Oncology Physician in Poulsbo, WA · enumerated 2006.

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

National Provider Identifier

1164518841

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Registry record

Entity type Individual (Type 1)

Name Berit L Madsen

Credential MD

Sex Female

Practice address 19917 7th Ave Ne, Poulsbo, WA, 98370

Phone (360) 697-8000

Enumeration date Oct 4, 2006

Last updated in NPPES Apr 30, 2025

Taxonomy & licenses

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License MD-21280 (HI) Secondary

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License MD00030690 (WA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
US0862051	Other	WA	AETNA SPECIALIST PIN
920001720	Other	WA	RAILROAD MEDICARE
MD036WA	Other	AK	ALASKA MEDICAID
MA8437	Other	WA	BLUE SHIELD NUMBER
8152159	Medicaid	WA	-
0039587	Other	WA	LABOR AND INDUSTRIES
805180300	Other	ID	IDAHO MEDICAID

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.

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Frequently asked questions

Is NPI 1164518841 active?

Yes, as of the latest NPPES snapshot, NPI 1164518841 is active (record last updated 2025-04-30).

How do I verify Berit Madsen's NPI record?

Cross-check NPI 1164518841 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-04-30.