Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MASON CITY SLEEP CENTER LLC
NPI 1841461613
Clinic/Center - Sleep Disorder Diagnostic in Mason City, IA

Q: What is Mason City Sleep Center LLC's NPI number?

The NPI number for Mason City Sleep Center LLC is 1841461613. It was assigned to this organization in the NPPES registry on March 19, 2008.

Q: What is Mason City Sleep Center LLC's specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Sleep Disorder Diagnostic, with taxonomy code 261QS1200X.

Active since March 19, 2008

1050 15TH ST SW STE 1, MASON CITY, IA 50401(614) 423-3566(641) 423-0932 Get Directions Write a Review

NPPES record last updated: August 6, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Aug 6, 2026, Nov 9, 2022 (2 updates tracked since 2022).

On this page

About Mason City Sleep Center Llc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MASON CITY SLEEP CENTER LLC (NPI 1841461613) is a healthcare organization registered as a sleep disorder diagnostic in Mason City, Iowa and active in the NPI registry since March 2008. The organization lists Francis Joseph Connelly, Director/owner, as its authorized official.

NPPES Registry Identity

NPI1841461613

Entity TypeOrganization

Primary Taxonomy261QS1200X

Legal Business NameMASON CITY SLEEP CENTER LLC

Location Address1050 15TH ST SW STE 1Mason City, IA 50401-5677

Mailing AddressPo Box 1464Mason City, IA 50402-1464 · (641) 423-3566 · Fax (641) 423-0932

Phone(614) 423-3566

Fax(641) 423-0932

Organization SubpartNo

Authorized OfficialFrancis Joseph ConnellyDirector/owner · (641) 423-3566

Enumeration DateMarch 19, 2008

Last NPPES UpdateAugust 6, 20262 updates tracked since enumeration

NPPES CertifiedAugust 6, 2026

✔ NPI 1841461613 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyClinic/Center · Sleep Disorder DiagnosticAmbulatory Health Care Facilities

Taxonomy Code261QS1200X

Also ListedNurse PractitionerTaxonomy 363L00000X

1050 15TH ST SW STE 1, Mason City, IA 50401

Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Home State Health, Ambetter from NH Healthy Families, Ambetter from Sunflower Health Plan and more.Insurance ›

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Sleep study including heart rate, breathing, and sleep time 95800

A sleep study monitors your sleep patterns to evaluate your sleep quality. It records your heart rate, breathing, and actual sleep time. This information helps identify any sleep disorders, ensuring you get the rest you need for optimal health.

210 services204 patients

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mason City Sleep Center LLC's NPI number?

The NPI number for Mason City Sleep Center LLC is 1841461613. It was assigned to this organization in the NPPES registry on March 19, 2008.

Where is Mason City Sleep Center LLC located?

Mason City Sleep Center LLC is located at 1050 15th St SW Ste 1, Mason City, IA 50401. The listed phone number is (614) 423-3566.

What is Mason City Sleep Center LLC's specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Sleep Disorder Diagnostic, with taxonomy code 261QS1200X.

What insurance does Mason City Sleep Center LLC accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Home State Health, Ambetter from NH Healthy Families and Ambetter from Sunflower Health Plan and 1 other insurer list Mason City Sleep Center LLC as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Mason City Sleep Center LLC was last updated on August 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.