Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Christine Susanne Donner-Tiernan, PHARMD
Pharmacist in Webster City, IA · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1831183425
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Dr. Christine Susanne Donner-Tiernan
Credential PHARMD
Sex Female
Practice address 823 Second St, Webster City, IA, 50595
Phone (515) 832-4025
Enumeration date Sep 9, 2005
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
PHARMD · Doctor of Pharmacy: A licensed pharmacist with a professional doctorate in pharmacy.
About the PHARMD 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.
Frequently asked questions
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.
What specialty is Christine Donner-Tiernan?
Christine Donner-Tiernan is registered in NPPES with the primary taxonomy of Pharmacist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.