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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Kathy Hollenbaugh Sullivan, RN, MSN

Adult Health Nurse Practitioner in Newark, DE · enumerated 2006.

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

National Provider Identifier

1659309086

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Registry record

Entity type Individual (Type 1)
Name Kathy Hollenbaugh Sullivan
Credential RN, MSN
Sex Female
Practice address 300 Biddle Ave, Suite 201, Newark, DE, 19702
Phone (302) 838-4700
Fax (302) 838-4793
Enumeration date Jun 28, 2006
Last updated in NPPES Dec 9, 2015

Taxonomy & licenses

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License LB0000194 (DE) Primary
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.

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Frequently asked questions

What specialty is Kathy Sullivan?
Kathy Sullivan is registered in NPPES with the primary taxonomy of Adult Health Nurse Practitioner. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-12-09.