Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

David A Ruen, MD

Family Medicine Physician in Mason City, IA · enumerated 2006.

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

National Provider Identifier

1710093547

Verified

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Registry record

Entity type Individual (Type 1)

Name David A Ruen

Credential MD

Sex Male

Practice address 1010 4th St Sw, Suite 340, Mason City, IA, 50401

Phone (641) 428-7766

Fax (641) 428-7788

Enumeration date Aug 22, 2006

Last updated in NPPES Jul 27, 2023

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 22988 (IA) Primary

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

Other identifiers

Identifier	Type	State	Issuer
0035378	Medicaid	IA	-
14274	Other	IA	WELLMARK

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

Is NPI 1710093547 active?

Yes, as of the latest NPPES snapshot, NPI 1710093547 is active (record last updated 2023-07-27).

How do I verify David Ruen's NPI record?

Cross-check NPI 1710093547 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Stephen Thorn Obstetrics & Gynecology Physician · Mason City, IA NPI 1932188166 Magnetic Resonance Services Ptr Magnetic Resonance Imaging (MRI) Clinic/Center · Mason City, IA NPI 1093767113 Radiologists of North Iowa PC Diagnostic Radiology Physician · Mason City, IA NPI 1942252051 Timothy Lucas Diagnostic Radiology Physician · Mason City, IA NPI 1740233428 Gary Swenson Diagnostic Radiology Physician · Mason City, IA NPI 1437102936 Jeana Petree Diagnostic Radiology Physician · Mason City, IA NPI 1285687137 Brad Janson Diagnostic Radiology Physician · Mason City, IA NPI 1497709372 Kristin White Diagnostic Radiology Physician · Mason City, IA NPI 1710932850

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-07-27.