Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Abigail Knudson, CNM

Advanced Practice Midwife in Iowa City, IA · enumerated 2024.

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

National Provider Identifier

1821836933

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Registry record

Entity type Individual (Type 1)

Name Abigail Knudson

Credential CNM

Sex Female

Practice address 200 Hawkins Dr, Iowa City, IA, 52242

Phone (319) 356-2294

Fax (319) 384-7346

Enumeration date Jul 15, 2024

Last updated in NPPES Nov 17, 2025

Taxonomy & licenses

176B00000X Midwife Other Service Providers Secondary

367A00000X Advanced Practice Midwife Physician Assistants & Advanced Practice Nursing Providers · License B180402 (IA) Primary

CNM · Certified Nurse Midwife: An advanced practice nurse specializing in pregnancy, childbirth, and reproductive care. About the CNM 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

Where does Abigail Knudson practice?

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

What is the NPI number for Abigail Knudson?

The National Provider Identifier (NPI) for Abigail Knudson is 1821836933, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-11-17.