Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Karen Nussbaumer, DDG, RDMS, RVT

Vascular Specialist/Technologist Cardiovascular in Danbury, CT · enumerated 2014.

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

National Provider Identifier

1487074241

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Registry record

Entity type Individual (Type 1)

Name Dr. Karen Nussbaumer

Credential DDG, RDMS, RVT

Sex Female

Practice address Danbury, CT, 06810

Phone (855) 663-2366

Fax (914) 663-5555

Enumeration date Apr 21, 2014

Last updated in NPPES Mar 16, 2026

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

2471S1302X Sonography Radiologic Technologist Technologists, Technicians & Other Technical Service Providers · License 92676 (CT) Secondary

2471V0105X Vascular Sonography Radiologic Technologist Technologists, Technicians & Other Technical Service Providers · License 92676 (CT) Secondary

2471V0105X Vascular Sonography Radiologic Technologist Technologists, Technicians & Other Technical Service Providers · License 92676 (NY) Secondary

246Z00000X Other Specialist/Technologist Technologists, Technicians & Other Technical Service Providers · License 0001 (CT) Secondary

246XS1301X Sonography Specialist/Technologist Cardiovascular Technologists, Technicians & Other Technical Service Providers · License 22035 (NY) Secondary

2471S1302X Sonography Radiologic Technologist Technologists, Technicians & Other Technical Service Providers · License 92676 (NY) Secondary

246XC2903X Vascular Specialist/Technologist Cardiovascular Technologists, Technicians & Other Technical Service Providers · License 92676 (CT) Primary

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 1487074241 active?

Yes, as of the latest NPPES snapshot, NPI 1487074241 is active (record last updated 2026-03-16).

How do I verify Karen Nussbaumer's NPI record?

Cross-check NPI 1487074241 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-03-16.