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

Ms. Karen Sue Gregg, RN

Q: What is the NPI number for Karen Gregg?

The National Provider Identifier (NPI) for Karen Gregg is 1083989933, a Type 1 (individual) record in the CMS NPPES registry.

Nephrology Registered Nurse in Jonesborough, TN · enumerated 2012.

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

National Provider Identifier

1083989933

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Registry record

Entity type Individual (Type 1)

Name Ms. Karen Sue Gregg

Credential RN

Sex Female

Practice address Jonesborough, TN, 37659

Phone (423) 483-1221

Enumeration date Mar 11, 2012

Last updated in NPPES Mar 11, 2012

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

Taxonomy & licenses

163WD1100X Peritoneal Dialysis Registered Nurse Nursing Service Providers · License 55458 (TN) Secondary

163WG0000X General Practice Registered Nurse Nursing Service Providers · License 55458 (TN) Secondary

163WH0500X Hemodialysis Registered Nurse Nursing Service Providers · License 55458 (TN) Secondary

163WN0300X Nephrology Registered Nurse Nursing Service Providers · License 55458 (TN) Primary

163WW0000X Wound Care Registered Nurse Nursing Service Providers · License 55458 (TN) Secondary

RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Karen Gregg practice?

The practice location on file with NPPES is in Jonesborough, TN. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Karen Gregg?

The National Provider Identifier (NPI) for Karen Gregg is 1083989933, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-03-11.