Individual provider Active NPI

Diana Afia Dankyi Appou, MSN, AGACNP-BC

  • Acute Care Nurse Practitioner
  • Houston, TX
National Provider Identifier
1205689189
Registry record updated Feb 25, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Acute Care Nurse PractitionerTaxonomy code 363LA2100X
License
1157175 Issued in TX
Practice address
6400 Fannin St Ste 2800
Houston, TX 77030-1534
Phone
(713) 486-8000
Fax
(713) 486-8088
NPI assigned
Apr 9, 2024
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Feb 25, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Acute Care Nurse Practitioner 363LA2100X 1157175 TX Primary
Nurse Practitioner 363L00000X 1157175 TX

Addresses

Primary practice location

6400 Fannin St Ste 2800
Houston, TX 77030-1534

Mailing address

6400 Fannin St Ste 2070
Houston, TX 77030-1541
Phone (713) 486-8000

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: No
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20250305004249 TX Practitioner - Nurse Practitioner 2860913910 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
Nurse Practitioner
Education
Other, 2023
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)

4710 Bellaire Blvd
Bellaire, TX 77401-4505
Phone (713) 363-9411

6445 Main St
Suite 2500
Houston, TX 77030-1502
Phone (713) 441-3150

6550 Fannin St
Houston, TX 77030-2743

7575 San Felipe St
Suite 155
Houston, TX 77063-1777
Phone (713) 266-9955

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Master of Science - Nursing, Nurse Practitioner

State licenses

LicenseStateTypeSpecialty
1157175TXMDNurse Practitioner

Practice roles

OrganizationSpecialtyStatusNew patients
TMH Physician Associates PLLC CurrentSince Mar 23, 2025 Accepting new patients
TMH Physician Associates PLLC CurrentSince Mar 23, 2025 Accepting new patients
Houston Methodist Specialty Physicians CurrentSince Jan 1, 2026 Accepting new patients
Houston Methodist Nurse Practitioner Past Accepting new patients
Methodist Radiology Associates, PLLC Past Accepting new patients

Locations

6550 Fannin St
Houston, TX 77030
Phone (713) 363-9604

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

6565 Fannin St
#623
Houston, TX 77030
Phone (713) 363-8584

6445 Main St
Ste 2500
Houston, TX 77030
Phone (713) 441-3150

6550 Fannin St
Ste 1501
Houston, TX 77030
Phone (713) 441-5141

Interoperability endpoints

  • Direct secure messaging: ddankyiappou373309@directhoustonmethodist.org

Organizations & group practices 6

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.

NPI Registry JSON

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

{
    "created_epoch": "1712620800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1771977600000",
    "number": "1205689189",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "6400 FANNIN ST STE 2070",
            "city": "HOUSTON",
            "state": "TX",
            "postal_code": "770301541",
            "telephone_number": "713-486-8000",
            "fax_number": "713-500-0871"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "6400 FANNIN ST STE 2800",
            "city": "HOUSTON",
            "state": "TX",
            "postal_code": "770301534",
            "telephone_number": "713-486-8000",
            "fax_number": "713-486-8088"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DANKYI APPOU",
        "first_name": "DIANA",
        "middle_name": "AFIA",
        "credential": "MSN, AGACNP-BC",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2024-04-09",
        "last_updated": "2026-02-25",
        "certification_date": "2026-02-25",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LA2100X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Acute Care",
            "state": "TX",
            "license": "1157175",
            "primary": true
        },
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "TX",
            "license": "1157175",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Houston, TX

Sources for this page

Verify at the official NPI Registry.