Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Marla L Murray-Koss, APNP
Nurse Practitioner in Onalaska, WI · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1891791190
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Registry record
Entity type Individual (Type 1)
Name Marla L Murray-Koss
Credential APNP
Sex Female
Practice address 1202 County Road Ph Ste 100, Onalaska, WI, 54650
Phone (608) 781-2225
Fax (608) 781-2495
Enumeration date Jun 22, 2005
Last updated in NPPES Feb 22, 2008
Taxonomy & licenses
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 2529 (WI) Primary
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 41255800 | 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
How do I verify Marla Murray-Koss's NPI record?
Cross-check NPI 1891791190 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1891791190 active?
Yes, as of the latest NPPES snapshot, NPI 1891791190 is active (record last updated 2008-02-22).
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-02-22.