Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Carol J. Hoffarth, A.R.N.P.

Pediatric Nurse Practitioner in Mason City, IA · enumerated 2008.

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

National Provider Identifier

1770739328

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Registry record

Entity type Individual (Type 1)

Name Carol J. Hoffarth

Credential A.R.N.P.

Sex Female

Practice address 22 N Georgia Ave, Ste 310, Mason City, IA, 50401

Phone (641) 424-0030

Fax (341) 424-0080

Enumeration date Aug 14, 2008

Last updated in NPPES Jun 4, 2012

Taxonomy & licenses

363LP0200X Pediatric Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License C051682 (IA) Primary

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.

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Frequently asked questions

How do I verify Carol Hoffarth's NPI record?

Cross-check NPI 1770739328 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1770739328 active?

Yes, as of the latest NPPES snapshot, NPI 1770739328 is active (record last updated 2012-06-04).

Other providers at this practice address

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Lynda Innes Mental Health Counselor · Mason City, IA NPI 1396838355 Elderbridge Agency on Aging Case Management Agency · Mason City, IA NPI 1851442909 Avalon Center Community/Behavioral Health Agency · Mason City, IA NPI 1003969148 Leah Weber Mental Health Counselor · Mason City, IA NPI 1073895348 Jenna Haglund Social Worker · Mason City, IA NPI 1629513536

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-06-04.