Jack Demirjian, MD

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

V6004 Issued in TX

Practice address

1201 W 38TH St
Austin, TX 78705-1006

Phone

(817) 313-1495

NPI assigned

Mar 24, 2022

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

Addresses

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

Specialty

Internal Medicine

Education

Other, 2021

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

Practice addresses (Care Compare)

Hospital & facility affiliations

• Ascension Seton Medical Center Austin Hospital, Austin, TX, CCN 450056
• Ascension Seton Williamson Hospital, Round Rock, TX, CCN 670041
• Ascension Seton Hays Hospital, Kyle, TX, CCN 670056
• Ascension Seton Northwest Hospital, Austin, TX, CCN 450867

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: jack.demirjian@hca8.eclinicaldirectplus.com

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.

• Usacs Integrated Acute Care Services of Texas, PLLC

  • Internal Medicine Physician
  • Cedar Park, TX
  • NPI 1801300322
  Medicare reassignment Care Compare group NPD
• Ascension Seton

  • General Acute Care Hospital
  • Austin, TX
  • NPI 1164526786
  NPD (past)

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

• Ascension Seton

  • General Acute Care Hospital
  • Austin, TX
  • NPI 1124137054
  Care Compare affiliation
• Ascension Seton

  • General Acute Care Hospital
  • Austin, TX
  • NPI 1164526786
  Care Compare affiliation
• Ascension Seton

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

  • General Acute Care Hospital
  • Kyle, TX
  • NPI 1619115383
  Care Compare affiliation

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

{
    "created_epoch": "1648080000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1752451200000",
    "number": "1609526714",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1201 W 38TH ST",
            "city": "AUSTIN",
            "state": "TX",
            "postal_code": "787051006",
            "telephone_number": "915-297-2250"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1201 W 38TH ST",
            "city": "AUSTIN",
            "state": "TX",
            "postal_code": "787051006",
            "telephone_number": "817-313-1495"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DEMIRJIAN",
        "first_name": "JACK",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2022-03-24",
        "last_updated": "2025-07-14",
        "certification_date": "2025-07-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "TX",
            "license": "V6004",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Christopher Demetriades
• Victoria Rose Demichel, PA-C
• Jennifer Rachel Demichele, LAC
• Kellea Demille, MSC
• Daniel Wayne Deming, M.D.
• Melkam Demissie
• Demiu Home Healthcare
• Monica Soun Demolay, COTA/L
• Jayvon Dempsey, RBT
• Angela Dempski, PT, DPT

• Internal Medicine Physician in Austin, TX
• Providers in Austin, 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 Jul 14, 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.