Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Nina Pham Christensen, O.D.
Optometrist in Grafton, WI · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1518178342
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Registry record
Entity type Individual (Type 1)
Name Nina Pham Christensen
Credential O.D.
Sex Female
Practice address 950 N Port Washington Rd, Grafton, WI, 53024
Phone (262) 204-1063
Enumeration date May 24, 2007
Last updated in NPPES Apr 30, 2021
Taxonomy & licenses
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 38609900 | Medicaid | WI | - |
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
What is the NPI number for Nina Christensen?
The National Provider Identifier (NPI) for Nina Christensen is 1518178342, a Type 1 (individual) record in the CMS NPPES registry.
Where does Nina Christensen practice?
The practice location on file with NPPES is in Grafton, WI. Providers can have multiple locations; NPPES lists the primary practice address.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-04-30.