Individual provider Active NPI

Casmir Cosmas Masega, AGACNP-AG

  • Nurse Practitioner
  • Columbia, MO
National Provider Identifier
1326775198
Registry record updated Aug 11, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Nurse PractitionerTaxonomy code 363L00000X
License
2026030934 Issued in MO
Practice address
1 Hospital Dr
Columbia, MO 65212-1000
Phone
(573) 882-1515
Fax
(573) 884-4249
NPI assigned
Aug 2, 2022
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Aug 11, 2026

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Acute Care Nurse Practitioner 363LA2100X 1080183 TX
Critical Care Medicine Nurse Practitioner 363LC0200X 1080183 TX
Nurse Practitioner 363L00000X 2026030934 MO Primary

Addresses

Primary practice location

1 Hospital Dr
Columbia, MO 65212-1000

Mailing address

PO Box 843966
Kansas City, MO 64184-3966
Phone (573) 884-3300

Electronic endpoints 2

TypeEndpointUseAffiliation
Other URL .org Direct
Other URL .org Direct

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in TX, OK2 enrollments
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: No
Green means eligible to order or refer.

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20230309002255 TX Practitioner - Nurse Practitioner 7315310414 Reassigns benefits to 2 organizations
I20250929000581 OK Practitioner - Nurse Practitioner 7315310414 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Nurse Practitioner
Education
Other, 2021
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Dallas Pulmonary and Critical Care PAGroup PAC ID 2163679200, 186 clinicians
Ou Health Partners IncGroup PAC ID 5991105876, 1,167 clinicians

Practice addresses (Care Compare)

221 W Colorado Blvd
Suite 525
Dallas, TX 75208-2312
Phone 214960568175

900 NE 10TH St
Ouhp Family Medicine
Oklahoma City, OK 73104-5420
Phone (572) 244-0065

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Nurse Practitioner

Practice roles

OrganizationSpecialtyStatusNew patients
Hospitalist Medicine Physicians of Texas, PLLC Nurse Practitioner CurrentSince Jan 1, 2023 Accepting new patients
Ou Health Partners, Inc CurrentSince Sep 8, 2025 Accepting new patients
Dallas Pulmonary & Critical Care PA Acute Care CurrentSince Jul 10, 2023 Accepting new patients
Ou Health Partners, Inc CurrentSince Sep 8, 2025 Accepting new patients

Locations

825 NE 10th St
Ste 5B
Oklahoma City, OK 73104
Phone (405) 271-3635

900 NE 10th St
Oklahoma City, OK 73104
Phone (405) 271-2230

221 W Colorado Blvd
Ste 525
Dallas, TX 75208
Phone (214) 956-4525

18951 N Memorial Dr
Humble, TX 77338
Phone (281) 319-8409

5605 N MacArthur Blvd
Ste 740
Irving, TX 75038
Phone 2149605681 ext. 75

2600 Saint Michael Dr
Texarkana, TX 75503
Phone (903) 614-1000

Organizations & group practices 4

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

Hospital & facility affiliations 5

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

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

{
    "created_epoch": "1659398400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1786406400000",
    "number": "1326775198",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 843966",
            "city": "KANSAS CITY",
            "state": "MO",
            "postal_code": "641843966",
            "telephone_number": "573-884-3300",
            "fax_number": "573-884-0943"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1 HOSPITAL DR",
            "city": "COLUMBIA",
            "state": "MO",
            "postal_code": "652121000",
            "telephone_number": "573-882-1515",
            "fax_number": "573-884-4249"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MASEGA",
        "first_name": "CASMIR",
        "middle_name": "COSMAS",
        "name_prefix": "Mr.",
        "credential": "AGACNP-AG",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2022-08-02",
        "last_updated": "2026-08-11",
        "certification_date": "2026-08-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LA2100X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Acute Care",
            "state": "TX",
            "license": "1080183",
            "primary": false
        },
        {
            "code": "363LC0200X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Critical Care Medicine",
            "state": "TX",
            "license": "1080183",
            "primary": false
        },
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "MO",
            "license": "2026030934",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "OTHERS",
            "endpointTypeDescription": "Other URL",
            "endpoint": ".org",
            "affiliation": "N",
            "endpointDescription": "casmir.masega@bswhealth.org",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "CSV",
            "contentTypeDescription": "CSV",
            "address_1": "1901 N MacArthur Blvd",
            "city": "Irving",
            "state": "TX",
            "country_code": "US",
            "postal_code": "750612220",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "OTHERS",
            "endpointTypeDescription": "Other URL",
            "endpoint": ".org",
            "affiliation": "N",
            "endpointDescription": "casmir.masega@bswhealth.org",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "CSV",
            "contentTypeDescription": "CSV",
            "address_1": "1901 N MacArthur Blvd",
            "city": "Irving",
            "state": "TX",
            "country_code": "US",
            "postal_code": "750612220",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Columbia, MO

Sources for this page

Verify at the official NPI Registry.