Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Margaret Wolan, O.D.
Optometrist in Marshfield, WI · enumerated 2011.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1245527027
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Registry record
Entity type Individual (Type 1)
Name Dr. Margaret Wolan
Credential O.D.
Sex Female
Practice address 1306 N Central Ave, Marshfield, WI, 54449
Phone (715) 387-8608
Fax (715) 384-2007
Enumeration date Jun 30, 2011
Last updated in NPPES Jun 30, 2011
Taxonomy & licenses
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD 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
Where does Margaret Wolan practice?
The practice location on file with NPPES is in Marshfield, WI. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Margaret Wolan?
The National Provider Identifier (NPI) for Margaret Wolan is 1245527027, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-06-30.