Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mrs. Emily Morgen Mertz, PA-C
Physician Assistant in Wausau, WI · enumerated 2014.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1356742019
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Registry record
Entity type Individual (Type 1)
Name Mrs. Emily Morgen Mertz
Credential PA-C
Sex Female
Practice address 411 Westwood Dr, Wausau, WI, 54401
Phone (715) 847-2558
Fax (715) 261-6452
Enumeration date Sep 11, 2014
Last updated in NPPES Mar 31, 2021
Taxonomy & licenses
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 3726-23 (WI) Primary
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA5090 (MA) Secondary
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 NPI 1356742019 active?
Yes, as of the latest NPPES snapshot, NPI 1356742019 is active (record last updated 2021-03-31).
How do I verify Emily Mertz's NPI record?
Cross-check NPI 1356742019 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-03-31.