Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Allison Elizabeth Sivertsen, APRN

Critical Care Neonatal Nurse Practitioner in Oklahoma City, OK · enumerated 2022.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1750035366

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Registry record

Entity type Individual (Type 1)

Name Ms. Allison Elizabeth Sivertsen

Credential APRN

Sex Female

Practice address 1200 Childrens Ave, Oklahoma City, OK, 73104

Phone (405) 271-2006

Enumeration date Feb 11, 2022

Last updated in NPPES Oct 8, 2024

Taxonomy & licenses

363LN0005X Critical Care Neonatal Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 206747 (OK) Primary

APRN · Advanced Practice Registered Nurse: An umbrella credential covering NPs, CRNAs, CNMs, and clinical nurse specialists. About the APRN 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Allison Sivertsen?

The National Provider Identifier (NPI) for Allison Sivertsen is 1750035366, a Type 1 (individual) record in the CMS NPPES registry.

Where does Allison Sivertsen practice?

The practice location on file with NPPES is in Oklahoma City, OK. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-10-08.