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Mason City Sleep Center LLC

Q: What type of organization is Mason City Sleep Center LLC?

Mason City Sleep Center LLC is registered in NPPES as a Sleep Disorder Diagnostic Clinic/Center (its primary provider taxonomy).

Sleep Disorder Diagnostic Clinic/Center in Mason City, IA · enumerated 2008 · authorized official Francis Connelly, Director/Owner.

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

National Provider Identifier

1841461613

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Registry record

Entity type Organization (Type 2)

Legal business name Mason City Sleep Center LLC

Practice address 1050 15th St Sw Ste 1, Mason City, IA, 50401

Phone (614) 423-3566

Fax (641) 423-0932

Enumeration date Mar 19, 2008

Last updated in NPPES Aug 6, 2026

Taxonomy & classification

261QS1200X Sleep Disorder Diagnostic Clinic/Center Ambulatory Health Care Facilities Primary

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers Secondary

Authorized official

Name Francis Connelly

Title Director/Owner

Phone (641) 423-3566

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 type of organization is Mason City Sleep Center LLC?

Mason City Sleep Center LLC is registered in NPPES as a Sleep Disorder Diagnostic Clinic/Center (its primary provider taxonomy).

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-08-06.