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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Karen S Martin, RN, CRNI

Infusion Therapy Registered Nurse in Harrisburg, PA · enumerated 2007 · practices at Specialty Rx PA Holdings LLC.

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

National Provider Identifier

1700095536

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Registry record

Entity type Individual (Type 1)
Name Mrs. Karen S Martin
Credential RN, CRNI
Sex Female
Practice address 491a Blue Eagle Ave, Harrisburg, PA, 17112
Phone (717) 651-9996
Fax (717) 651-9974
Enumeration date May 21, 2007
Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

163WI0500X Infusion Therapy Registered Nurse Nursing Service Providers · License RN297588L (PA) Primary
RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN credential

Other identifiers

Identifier Type State Issuer
RN297588L Other PA STATE LICENSE

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

What specialty is Karen Martin?
Karen Martin is registered in NPPES with the primary taxonomy of Infusion Therapy Registered Nurse. 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 2007-07-08.