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Karen Lynn Knudsen, MD

Endocrinology, Diabetes & Metabolism Physician in Williamsburg, VA · enumerated 2007.

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

National Provider Identifier

1659574309

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Registry record

Entity type Individual (Type 1)
Name Karen Lynn Knudsen
Credential MD
Sex Female
Practice address 5424 Discovery Park Boulevard, Bldg B Ste 201, Williamsburg, VA, 23188
Phone (757) 903-4808
Fax (757) 707-3507
Enumeration date Jun 8, 2007
Last updated in NPPES Dec 5, 2019

Taxonomy & licenses

207RE0101X Endocrinology, Diabetes & Metabolism Physician Allopathic & Osteopathic Physicians · License 0101247423 (VA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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

Where does Karen Knudsen practice?
The practice location on file with NPPES is in Williamsburg, VA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Karen Knudsen?
The National Provider Identifier (NPI) for Karen Knudsen is 1659574309, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-12-05.