Sayf Yassin, M.D.

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

R8293 Issued in TX

Practice address

201 Seton Pkwy
Round Rock, TX 78665-8000

Phone

(512) 324-4170

NPI assigned

Apr 2, 2015

Last updated

Feb 19, 2025By the provider in NPPES

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in TX, TN2 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

Specialty

Internal Medicine

Education

Other, 2004

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Usacs Integrated Acute Care Services of Texas, PLLCGroup PAC ID 7618237264, 398 clinicians

HCC of Laredo LLCGroup PAC ID 8123386521, 29 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Ascension Seton Williamson Hospital, Round Rock, TX, CCN 670041
• Laredo Medical Center Hospital, Laredo, TX, CCN 450029
• Ascension Seton Southwest Hospital, Austin, TX, CCN 450865
• Ascension Seton Smithville Hospital, Smithville, TX, CCN 671304

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

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.

• HCC of Laredo LLC

  • Internal Medicine Physician
  • Laredo, TX
  • NPI 1942712252
  Medicare reassignment Care Compare group NPD
• Usacs Integrated Acute Care Services of Texas, PLLC

  • Internal Medicine Physician
  • Cedar Park, TX
  • NPI 1801300322
  Medicare reassignment Care Compare group NPD
• Aco Jason Martin Medical Consulting

  • Internal Medicine Physician
  • Austin, TX
  • NPI 1881578961
  Medicare reassignment NPD
• Cogent Healthcare of Texas, PA

  • Internal Medicine Physician
  • Dallas, TX
  • NPI 1992722953
  Medicare reassignment NPD
• Comprehensive Hospitalist Services of Texas PLLC

  • Hospitalist Physician
  • Odessa, TX
  • NPI 1295062198
  Medicare reassignment NPD
• Hospitalist Medicine Physicians of Texas, PLLC

  • Internal Medicine Physician
  • Humble, TX
  • NPI 1629307095
  Medicare reassignment NPD
• Jason Martin Medical Consulting LLC

  • General Practice Physician
  • Austin, TX
  • NPI 1851736243
  Medicare reassignment NPD
• Velasco Inpatient Services PLLC

  • Emergency Medicine Physician
  • Angleton, TX
  • NPI 1811295512
  Medicare reassignment NPD
• Saint Thomas Medical Partners

  dba Ascension Medical Group Saint Thomas

  • Internal Medicine Physician
  • Nashville, TN
  • NPI 1437194669
  Medicare reassignment NPD
• Victoria Hospitalist Associates, LLC

  • Hospitalist Physician
  • Tulsa, OK
  • NPI 1023236825

  TX

  Medicare reassignment NPD
• Comprehensive Hospitalist Services of Texas PLLC

  • Hospitalist Physician
  • Corsicana, TX
  • NPI 1396142394
  NPD
• Ascension Seton

  dba Ascension Seton Williamson

  • General Acute Care Hospital
  • Round Rock, TX
  • NPI 1578780870
  NPD (past)

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

• Ascension Seton

  dba Ascension Seton Williamson

  • General Acute Care Hospital
  • Round Rock, TX
  • NPI 1578780870
  Care Compare affiliation
• Ascension Seton

  dba Ascension Seton Smithville

  • Critical Access Hospital
  • Smithville, TX
  • NPI 1619726064
  Care Compare affiliation
• Ascension Seton

  dba Ascension Seton Southwest

  • General Acute Care Hospital
  • Austin, TX
  • NPI 1750499273
  Care Compare affiliation
• Laredo Texas Hospital Company LP

  dba Laredo Medical Center

  • General Acute Care Hospital
  • Laredo, TX
  • NPI 1548232044
  Care Compare affiliation

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

{
    "created_epoch": "1427932800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1739923200000",
    "number": "1043605371",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "709 TIMBER CREEK CV",
            "city": "ROUND ROCK",
            "state": "TX",
            "postal_code": "786655652",
            "telephone_number": "202-469-9111"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "201 SETON PKWY",
            "city": "ROUND ROCK",
            "state": "TX",
            "postal_code": "786658000",
            "telephone_number": "512-324-4170"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1700 Medical Center Pkwy",
            "address_purpose": "LOCATION",
            "city": "Murfreesboro",
            "state": "TN",
            "postal_code": "371292245",
            "country_code": "US",
            "telephone_number": "615-396-4694",
            "fax_number": "615-396-6751",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "YASSIN",
        "first_name": "SAYF",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2015-04-02",
        "last_updated": "2025-02-19",
        "certification_date": "2025-02-19",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "TN",
            "license": "66293",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "TX",
            "license": "R8293",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

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• Internal Medicine Physician in Round Rock, TX
• Providers in Round Rock, TX by specialty
• Internal Medicine Physician in Texas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 19, 2025; 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.