Individual provider Active NPI

Darren Edward Harrison, MB BCH BAO

  • Cardiovascular Disease Physician
  • Austin, TX
National Provider Identifier
1124517172
Registry record updated Oct 19, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Cardiovascular Disease PhysicianTaxonomy code 207RC0000X
License
T2802 Issued in TX
Practice address
2802 Webberville Rd
Austin, TX 78702-2947
Phone
(512) 978-8113
NPI assigned
May 5, 2018
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Oct 19, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Cardiovascular Disease Physician 207RC0000X T2802 TX Primary

Addresses

Primary practice location

2802 Webberville Rd
Austin, TX 78702-2947

Mailing address

1111 E Cesar Chavez St
Austin, TX 78702-4209
Phone (512) 978-8130

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
I20211130001030 TX Practitioner - Cardiovascular Disease (Cardiology)Practitioner - Internal Medicine 3375933740 Reassigns benefits to 6 organizations

Care Compare profile

Medicare Care Compare
Specialty
Cardiovascular Disease (Cardiology)Also: Internal Medicine
Education
Other, 2018
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Usacs Integrated Acute Care Services of Texas, PLLCGroup PAC ID 7618237264, 398 clinicians
Travis County Healthcare DistrictGroup PAC ID 5890843858, 30 clinicians

Practice addresses (Care Compare)

1201 W 38TH St
Austin, TX 78705-1006
Phone (512) 324-1000

1500 Red River St
Austin, TX 78701-1918
Phone (512) 324-0150

201 Seton Pkwy
Round Rock, TX 78665-8000
Phone (512) 324-4000

260 Cully Dr
Kerrville, TX 78028-5950
Phone (830) 258-7747

2802 Webberville Rd
Austin, TX 78702-2947
Phone (512) 978-8130

3501 Mills Ave
Austin, TX 78731-6309
Phone (512) 324-1017

6001 Kyle Pkwy
Kyle, TX 78640-6112
Phone (512) 504-5125

Hospital & facility affiliations

  • Ascension Seton Medical Center Austin Hospital, Austin, TX, CCN 450056
  • Ascension Seton Williamson Hospital, Round Rock, TX, CCN 670041

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Usacs Integrated Acute Care Services of Texas, PLLC Internal Medicine CurrentSince Oct 1, 2024 Accepting new patients
Cardiology Clinic of San Antonio, PLLC Cardiovascular Disease CurrentSince Jan 12, 2026 Accepting new patients
Cogent Healthcare of Texas, PA Internal Medicine CurrentSince Sep 1, 2021 Accepting new patients
Seton Family of Doctors Internal Medicine CurrentSince Dec 1, 2023 Accepting new patients
Travis County Healthcare District Internal Medicine CurrentSince Apr 1, 2025 Accepting new patients
Hospitalist Medicine Physicians of Texas, PLLC Internal Medicine CurrentSince Sep 1, 2021 Accepting new patients
Seton Family of Doctors CurrentSince Dec 1, 2023 Accepting new patients
Community Care Collaborative PastSince Oct 27, 2024 Accepting new patients
San Antonio Cardiology Clinic PA Cardiovascular Disease Past Accepting new patients

Locations

12221 N Mopac Expy
Austin, TX 78758
Phone (512) 901-2530

1111 E Cesar Chavez St
Austin, TX 78702
Phone (512) 978-8000

601 E 15th St
Austin, TX 78701
Phone (512) 324-7868

1400 N Interstate 35
Ste 300
Austin, TX 78701
Phone (512) 324-8300

3501 Mills Ave
Austin, TX 78731
Phone (512) 324-1017

1201 W 38th St
Austin, TX 78705
Phone (512) 324-1058

3201 W State Highway 22
Corsicana, TX 75110
Phone (903) 654-6800

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

260 Cully Dr
Kerrville, TX 78028
Phone (830) 258-7323

6001 Kyle Pkwy
Kyle, TX 78640
Phone (512) 504-5000

2700 E Broad St
Mansfield, TX 76063
Phone (682) 242-2000

201 Seton Pkwy
Round Rock, TX 78665
Phone (512) 324-1010

4411 Medical Dr
Ste 300
San Antonio, TX 78229
Phone (210) 582-5145

7700 Floyd Curl Dr
San Antonio, TX 78229
Phone (210) 575-5564

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

Interoperability endpoints

  • Direct secure messaging: darren.harrison.1@8363.direct.athenahealth.com

Organizations & group practices 9

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 2

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": "1525478400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1760832000000",
    "number": "1124517172",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1111 E CESAR CHAVEZ ST",
            "city": "AUSTIN",
            "state": "TX",
            "postal_code": "787024209",
            "telephone_number": "512-978-8130"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2802 WEBBERVILLE RD",
            "city": "AUSTIN",
            "state": "TX",
            "postal_code": "787022947",
            "telephone_number": "512-978-8113"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HARRISON",
        "first_name": "DARREN",
        "middle_name": "EDWARD",
        "name_prefix": "Dr.",
        "credential": "MB BCH BAO",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2018-05-05",
        "last_updated": "2025-10-19",
        "certification_date": "2025-10-19",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RC0000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Cardiovascular Disease",
            "state": "TX",
            "license": "T2802",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Austin, TX

Sources for this page

Verify at the official NPI Registry.