Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Denisa Hagau, M.D.

Cardiovascular Disease Physician in Mason City, IA · enumerated 2010.

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

National Provider Identifier

1861703910

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Registry record

Entity type Individual (Type 1)

Name Denisa Hagau

Credential M.D.

Sex Female

Practice address 250 S Crescent Dr, Mason City, IA, 50401

Phone (641) 494-5300

Fax (641) 494-5321

Enumeration date Jun 23, 2010

Last updated in NPPES Jun 16, 2026

Taxonomy & licenses

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License MD-43219 (IA) Primary

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License ME167219 (FL) Secondary

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License 43219 (IA) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License LP01915 (RI) Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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.

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Frequently asked questions

How do I verify Denisa Hagau's NPI record?

Cross-check NPI 1861703910 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1861703910 active?

Yes, as of the latest NPPES snapshot, NPI 1861703910 is active (record last updated 2026-06-16).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-06-16.