Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ann F Olson, CNP
Nurse Practitioner in Winona, MN · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1144337692
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Ann F Olson
Credential CNP
Sex Female
Practice address 859 Mankato Avenue, Winona, MN, 55987
Phone (507) 454-3680
Fax (507) 457-7672
Enumeration date Aug 23, 2006
Last updated in NPPES Dec 30, 2011
Taxonomy & licenses
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License R0918859 (MN) Primary
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 569840500 | Medicaid | MN | - |
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 specialty is Ann Olson?
Ann Olson is registered in NPPES with the primary taxonomy of Nurse Practitioner. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
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.
Other providers at this practice address
Browse all → Martha Cooley Advanced Practice Midwife · Winona, MN NPI 1518977180 Laurie Broghammer Podiatrist · Winona, MN NPI 1891705505 John Mulrooney Internal Medicine Physician · Winona, MN NPI 1275543829 John Rowekamp Surgery Physician · Winona, MN NPI 1881604478 Gary Hayes Oral and Maxillofacial Surgery (Dentist) · Winona, MN NPI 1104836709 Mary Michener Family Medicine Physician · Winona, MN NPI 1124038724 David Christenson Family Medicine Physician · Winona, MN NPI 1972513588 Suzanne Jelense Surgery Physician · Winona, MN NPI 1447260088
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-12-30.