Individual provider Active NPI

Kai Sun, M.D.

  • Hematology & Oncology Physician
  • Houston, TX
National Provider Identifier
1841746112
Registry record updated Nov 7, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Hematology & Oncology PhysicianTaxonomy code 207RH0003X
License
T4470 Issued in TX
Practice address
6445 Main Street Opc 24
Houston, TX 77030-1502
Phone
(713) 441-9948
Fax
(713) 793-1642
NPI assigned
Aug 28, 2016
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Nov 7, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Hematology & Oncology Physician 207RH0003X T4470 TX Primary

Addresses

Primary practice location

6445 Main Street Opc 24
Houston, TX 77030-1502

Mailing address

6445 Main Street Opc 24
Houston, TX 77030-1502
Phone (713) 441-9948

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in TX
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 1

Enrollment IDStateProvider typePAC IDDetails
I20220629003897 TX Practitioner - Hematology/Oncology 2365822863 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Hematology/Oncology
Education
Other, 2013
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
TMH Physician Associates PLLCGroup PAC ID 4486711744, 1,881 clinicians
Houston Methodist Specialty PhysiciansGroup PAC ID 5193239796, 1,498 clinicians

Practice addresses (Care Compare)

6445 Main St
FL 24
Houston, TX 77030-1502
Phone (713) 441-3800

6565 Fannin St
Houston, TX 77030-2703

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

Practice roles

OrganizationSpecialtyStatusNew patients
TMH Physician Associates PLLC CurrentSince Aug 1, 2022 Accepting new patients
TMH Physician Associates PLLC CurrentSince Aug 1, 2022 Accepting new patients

Locations

6445 Main St
#24
Houston, TX 77030
Phone (713) 441-9948

7575 San Felipe St
Ste 155
Houston, TX 77063
Phone (713) 266-9955

6550 Fannin St
Ste 1001
Houston, TX 77030
Phone (713) 441-4333

6445 Main St
Fl 24
Houston, TX 77030
Phone (713) 441-3800

16605 Southwest Fwy
Ste 400
Sugar Land, TX 77479
Phone (281) 275-0800

Interoperability endpoints

  • Direct secure messaging: ksun67584@directhoustonmethodist.org

Organizations & group practices 3

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": "1472342400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1762473600000",
    "number": "1841746112",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "6445 MAIN STREET OPC 24",
            "city": "HOUSTON",
            "state": "TX",
            "postal_code": "770301502",
            "telephone_number": "713-441-9948",
            "fax_number": "713-793-1642"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "6445 MAIN STREET OPC 24",
            "city": "HOUSTON",
            "state": "TX",
            "postal_code": "770301502",
            "telephone_number": "713-441-9948",
            "fax_number": "713-793-1642"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SUN",
        "first_name": "KAI",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2016-08-28",
        "last_updated": "2025-11-07",
        "certification_date": "2025-11-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RH0003X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology & Oncology",
            "state": "TX",
            "license": "T4470",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Houston, TX

Sources for this page

Verify at the official NPI Registry.