Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Heidi M Bonthuis, PA--C

Physician Assistant in Waterloo, IA · enumerated 2005.

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

National Provider Identifier

1164421954

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Registry record

Entity type Individual (Type 1)

Name Heidi M Bonthuis

Credential PA--C

Sex Female

Practice address 905 Franklin St, Waterloo, IA, 50703

Phone (319) 272-4300

Enumeration date Jul 14, 2005

Last updated in NPPES Apr 30, 2018

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 000826 (IA) Primary

Other identifiers

Identifier	Type	State	Issuer
0076372	Medicaid	IA	-
0184473	Medicaid	IA	-
IA0133	Other	-	JOHN DEERE HEALTH CARE

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 Heidi Bonthuis?

The National Provider Identifier (NPI) for Heidi Bonthuis is 1164421954, a Type 1 (individual) record in the CMS NPPES registry.

Where does Heidi Bonthuis practice?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-04-30.