Mason City Sleep Center LLC

Primary specialty

Sleep Disorder Diagnostic Clinic/CenterTaxonomy code 261QS1200X

Legal business name

MASON CITY SLEEP CENTER LLC

Practice address

1050 15TH St SW Ste 1
Mason City, IA 50401-5677

Phone

(614) 423-3566

Fax

(641) 423-0932

NPI assigned

Mar 19, 2008

Organization subpart

No

Registry information is reported by the provider to CMS and is not verified. About this source

Authorized official

Name

Mr. Francis Joseph ConnellyNPI 1225570294

Title

Director/Owner

Phone

(641) 423-3566

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in IA

Enrollment records 1

Member of 1

Organizations this organization is a member of, according to the National Provider Directory.

• Mason City Clinic P.C.

  • Durable Medical Equipment & Medical Supplies
  • Mason City, IA
  • NPI 1932128709

  Member Of

  NPD member

Locations

Practitioners 2

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.

• Francis Connelly

  • Contractor
  • Mason City, IA
  • NPI 1225570294
  NPD Authorized official
• Phillip C Lee, M.D.

  • Sleep Medicine (Otolaryngology) Physician
  • Mason City, IA
  • NPI 1083609317
  NPD

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1205884800000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1785974400000",
    "number": "1841461613",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 1464",
            "city": "MASON CITY",
            "state": "IA",
            "postal_code": "504021464",
            "telephone_number": "641-423-3566",
            "fax_number": "641-423-0932"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1050 15TH ST SW STE 1",
            "city": "MASON CITY",
            "state": "IA",
            "postal_code": "504015677",
            "telephone_number": "614-423-3566",
            "fax_number": "641-423-0932"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "MASON CITY SLEEP CENTER LLC",
        "organizational_subpart": "NO",
        "enumeration_date": "2008-03-19",
        "last_updated": "2026-08-06",
        "certification_date": "2026-08-06",
        "status": "A",
        "authorized_official_last_name": "CONNELLY",
        "authorized_official_first_name": "FRANCIS",
        "authorized_official_middle_name": "JOSEPH",
        "authorized_official_title_or_position": "DIRECTOR/OWNER",
        "authorized_official_telephone_number": "641-423-3566",
        "authorized_official_name_prefix": "Mr."
    },
    "taxonomies": [
        {
            "code": "261QS1200X",
            "taxonomy_group": "",
            "desc": "Clinic/Center, Sleep Disorder Diagnostic",
            "state": null,
            "license": null,
            "primary": true
        },
        {
            "code": "363L00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Nurse Practitioner",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Mason City Endodontics LLP
• Mason City Healthcare
• Mason City Ia Skilled Nursing Facility LLC
• Mason City Imaging Partners LLC
• Mason City Senior Living Holdings LP
• Shumaila Masood, M.D.
• Ronald Ommen Masters II, D.C.
• Ashley Matern, ARNP
• Benjamin Mathews
• Marlies Elaine Mathis, PHARMD

• Sleep Disorder Diagnostic Clinic/Center in Mason City, IA
• Providers in Mason City, IA by specialty
• Sleep Disorder Diagnostic Clinic/Center in Iowa

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 6, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.