Individual provider Active NPI

Hwarang Stephen Han, DO

  • Nephrology Physician
  • Austin, TX
National Provider Identifier
1740667534
Registry record updated May 14, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Nephrology PhysicianTaxonomy code 207RN0300X
License
T2878 Issued in TX
Practice address
1500 Red River St Ste 11006
Austin, TX 78701-1918
Phone
(512) 324-7930
NPI assigned
Apr 30, 2015
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on May 14, 2026

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Nephrology Physician 207RN0300X T2878 TX Primary
Nephrology Physician 207RN0300X 20A15603 CA
Internal Medicine Physician 207R00000X 5985 OK

Addresses

Primary practice location

1500 Red River St Ste 11006
Austin, TX 78701-1918

Mailing address

1500 Red River St Ste 11006
Austin, TX 78701-1918
Phone (512) 324-7930

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA, TX2 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 2

Enrollment IDStateProvider typePAC IDDetails
I20200708002883 CA Practitioner - NephrologyPractitioner - Internal Medicine 3971926015 Reassigns benefits to 3 organizations
I20210920000796 TX Practitioner - Nephrology 3971926015 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Nephrology
Education
Oklahoma State University College of Osteopathic Medicine, 2015
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Seton Family of DoctorsGroup PAC ID 0941333280, 785 clinicians

Practice addresses (Care Compare)

1400 N Ih 35
Austin, TX 78701-1926

1400 N Ih 35 LL
Cl400 Tri County Prac Assoc
Austin, TX 78701-1926
Phone (512) 324-7300

1500 Red River St
Austin, TX 78701-1918
Phone (512) 324-7000

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
5985OKMDInternal Medicine Physician
20A15603CAMDNephrology Physician
T2878TXMDNephrology Physician
15603CAMDSpeech-Language Pathologist

Practice roles

OrganizationSpecialtyStatusNew patients
Regents of the University of California Internal Medicine CurrentSince Jun 30, 2020 Accepting new patients
University of Texas Southwestern Medical Center at Dallas Current Accepting new patients
University of California San Francisco CurrentSince Jun 30, 2020 Accepting new patients
The University of Texas Southwestern Medical Center at Dallas CurrentSince Oct 4, 2021 Accepting new patients
UCSF Medical Group Business Services Internal Medicine CurrentSince Jun 30, 2020 Accepting new patients
University of California San Francisco Current Accepting new patients
Seton Family of Doctors Internal Medicine CurrentSince Nov 1, 2022 Accepting new patients
Seton Family of Doctors CurrentSince Nov 1, 2022 Accepting new patients
University of Texas Southwestern Medical Center at Dallas Internal Medicine CurrentSince Oct 4, 2021 Accepting new patients
University of California San Francisco Internal Medicine CurrentSince Jun 30, 2020 Accepting new patients
UCSF Medical Group Business Services CurrentSince Jun 30, 2020 Accepting new patients
Ascension Seton Past Accepting new patients

Locations

3333 California St
San Francisco, CA 94118
Phone (415) 514-3577

533 Parnassus Ave
Ste 2300
San Francisco, CA 94143

400 Parnassus Ave
#A632
San Francisco, CA 94143
Phone (415) 473-1000

505 Parnassus Ave
San Francisco, CA 94143
Phone (415) 476-9058

2330 Post St
San Francisco, CA 94115
Phone (415) 502-4444

1500 Red River St
Ste 11006
Austin, TX 78701
Phone (512) 324-7930

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

2201 Inwood Rd
Dallas, TX 75235
Phone (214) 645-2563

6201 Harry Hines Blvd
Dallas, TX 75235
Phone (214) 633-4700

3000 N Interstate 35
Denton, TX 76201
Phone (469) 303-3591

3621 22nd St
Ste 400
Lubbock, TX 79410
Phone (806) 791-8484

11937 US Highway 271
Tyler, TX 75708
Phone (903) 877-3451

Organizations & group practices 12

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 1

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": "1430352000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1778716800000",
    "number": "1740667534",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1500 RED RIVER ST STE 11006",
            "city": "AUSTIN",
            "state": "TX",
            "postal_code": "787011918",
            "telephone_number": "512-324-7930",
            "fax_number": "833-340-0748"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1500 RED RIVER ST STE 11006",
            "city": "AUSTIN",
            "state": "TX",
            "postal_code": "787011918",
            "telephone_number": "512-324-7930"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HAN",
        "first_name": "HWARANG",
        "middle_name": "STEPHEN",
        "credential": "DO",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2015-04-30",
        "last_updated": "2026-05-14",
        "certification_date": "2026-05-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RN0300X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Nephrology",
            "state": "TX",
            "license": "T2878",
            "primary": true
        },
        {
            "code": "207RN0300X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Nephrology",
            "state": "CA",
            "license": "20A15603",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "OK",
            "license": "5985",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Austin, TX

Sources for this page

Verify at the official NPI Registry.