Thamer Kassim, M.D

Primary specialty

Gastroenterology PhysicianTaxonomy code 207RG0100X

License

31802 Issued in NE

Practice address

601 N 30TH St Dept of
Omaha, NE 68131-2128

Phone

(402) 717-0800

NPI assigned

Aug 1, 2016

Last updated

Feb 4, 2026By the provider in NPPES

Sex

Male

Sole proprietor

No

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

Specialties & licenses 4

Addresses

Medicare fee-for-service enrollment

Enrolled in NE, MO, WY, KS4 enrollments

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 4

Specialty

Gastroenterology

Education

Other, 2012

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Cotton-O'Neil Clinic Revocable TrustGroup PAC ID 5496659195, 659 clinicians

Saint Francis Medical CenterGroup PAC ID 9931007929, 441 clinicians

Meritas Health CorporationGroup PAC ID 6305748153, 492 clinicians

Heartland Regional Medical CenterGroup PAC ID 6709772767, 394 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Mosaic Life Care at St Joseph Hospital, Saint Joseph, MO, CCN 260006
• Saint Francis Medical Center Hospital, Cape Girardeau, MO, CCN 260183
• Stormont Vail Hospital Hospital, Topeka, KS, CCN 170086
• NKC Health Hospital, North Kansas City, MO, CCN 260096
• Mosaic Medical Center - Maryville Hospital, Maryville, MO, CCN 261340

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations (25 of 27)

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

• Cotton-O'Neil Clinic Revocable Trust

  dba Cotton O'Neil

  • Internal Medicine Physician
  • Topeka, KS
  • NPI 1811944457
  Medicare reassignment Care Compare group NPD
• Heartland Regional Medical Center

  dba Mosaic Life Care

  • General Practice Physician
  • Saint Joseph, MO
  • NPI 1477575405

  Internal Medicine

  Medicare reassignment Care Compare group NPD
• Saint Francis Medical Center

  dba Saint Francis Medical Center Anesthesia

  • Anesthesiology Physician
  • Cape Girardeau, MO
  • NPI 1356304489
  Medicare reassignment Care Compare group NPD
• Meritas Health Corporation

  dba NKC Health

  • Family Medicine Physician
  • Kansas City, MO
  • NPI 1801875091
  Medicare reassignment Care Compare group
• Alegent Creighton Clinic

  dba CHI Health Clinic

  • Family Medicine Physician
  • Omaha, NE
  • NPI 1548287907
  Medicare reassignment NPD
• Bryan Hospital Kearney

  dba Kearney Regional Medical Center Platte Valley Medical Clinic

  • Family Medicine Physician
  • Kearney, NE
  • NPI 1033875380

  Internal Medicine

  Medicare reassignment NPD
• CHI Health Clinic Specialty, LLC

  • Hospitalist Physician
  • Lincoln, NE
  • NPI 1285138065

  Gastroenterology

  Medicare reassignment NPD
• St. Mary's Community Hospital

  dba CHI Health St. Mary's

  • Critical Access Hospital
  • Nebraska City, NE
  • NPI 1528016995
  Medicare reassignment NPD
• Teledigm Physician Services, LLC

  • Specialist
  • Lincoln, NE
  • NPI 1548667256
  Medicare reassignment NPD
• West Park Hospital District

  dba Cody Regional Health

  • Critical Access Hospital
  • Cody, WY
  • NPI 1558351536
  Medicare reassignment NPD
• Bryan Hospital Kearney

  dba Kearney Regional Medical Center

  • General Acute Care Hospital
  • Kearney, NE
  • NPI 1407513484
  NPD
• St. Mary's Community Hospital

  dba Nebraska City Medical Clinic

  • Rural Health Clinic/Center
  • Nebraska City, NE
  • NPI 1851737316
  NPD

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

• Heartland Regional Medical Center

  dba Mosaic Life Care at St Joseph Medical Center

  • General Acute Care Hospital
  • Saint Joseph, MO
  • NPI 1437259694
  Care Compare affiliation
• Mosaic Medical Center - Maryville

  • Critical Access Hospital
  • Maryville, MO
  • NPI 1265906663
  Care Compare affiliation
• North Kansas City Hospital

  dba Skilled Nursing Unit

  • Skilled Nursing Facility
  • North Kansas City, MO
  • NPI 1437103215

  Hospital

  Care Compare affiliation
• North Kansas City Hospital

  dba NKC Health

  • General Acute Care Hospital
  • North Kansas City, MO
  • NPI 1629062799
  Care Compare affiliation
• Saint Francis Medical Center

  • General Acute Care Hospital
  • Cape Girardeau, MO
  • NPI 1467412726
  Care Compare affiliation
• Saint Francis Medical Center

  • Internal Medicine Physician
  • Cape Girardeau, MO
  • NPI 1578513016

  Hospital

  Care Compare affiliation
• Stormont-Vail Healthcare Inc

  dba Stormont Vail Hospital

  • General Acute Care Hospital
  • Topeka, KS
  • NPI 1194782409
  Care Compare affiliation

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

{
    "created_epoch": "1470009600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1770163200000",
    "number": "1518410091",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "7500 MERCY RD",
            "city": "OMAHA",
            "state": "NE",
            "postal_code": "681242319",
            "telephone_number": "855-524-4001"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "601 N 30TH ST DEPT OF",
            "city": "OMAHA",
            "state": "NE",
            "postal_code": "681312128",
            "telephone_number": "402-717-0800"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2790 Clay Edwards Dr Ste 1235",
            "address_purpose": "LOCATION",
            "city": "North Kansas City",
            "state": "MO",
            "postal_code": "641163276",
            "country_code": "US",
            "telephone_number": "816-691-1920",
            "fax_number": "816-346-7210",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1500 SW 10th Ave",
            "address_purpose": "LOCATION",
            "city": "Topeka",
            "state": "KS",
            "postal_code": "666041301",
            "country_code": "US",
            "telephone_number": "785-354-6000",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "802 N Riverside Rd Ste 220",
            "address_purpose": "LOCATION",
            "city": "Saint Joseph",
            "state": "MO",
            "postal_code": "645072509",
            "country_code": "US",
            "telephone_number": "816-271-7074",
            "fax_number": "816-385-8083",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "KASSIM",
        "first_name": "THAMER",
        "credential": "M.D",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2016-08-01",
        "last_updated": "2026-02-04",
        "certification_date": "2026-02-04",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "IA",
            "license": "MD45497",
            "primary": false
        },
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "NE",
            "license": "31802",
            "primary": true
        },
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "KS",
            "license": "04-52148",
            "primary": false
        },
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "MO",
            "license": "2023021293",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Remy Ellen Kaslon, APRN, ACNP-BC
• Gulshan Noshir Kasnavia Chander, PT
• Nairi Kasparian
• Stephanie Ann Kasper, CRNA
• Cale A Kassel, MD
• Zoe Kassmeyer
• Annmarie Kastan
• Kendall M Kastner, M.S., BCBA
• Fernand Kasusa
• A Kat

• Gastroenterology Physician in Omaha, NE
• Providers in Omaha, NE by specialty
• Gastroenterology Physician in Nebraska

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 4, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.