John Chang Luk, M.D.

Primary specialty

Pediatrics PhysicianTaxonomy code 208000000X

License

L2434 Issued in TX

Practice address

313 E 12TH St
Ste. 104
Austin, TX 78701-1954

Phone

(409) 772-2222

Fax

(409) 772-0885

NPI assigned

Jun 6, 2006

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

Pediatric Medicine

Education

Hahnemann University College of Medicine, 1996

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Dell Childrens Medical GroupGroup PAC ID 8224092978, 117 clinicians

Practice addresses (Care Compare)

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 and National Provider Directory roles.

• Dell Children'S Medical Group

  • Pediatrics Physician
  • Austin, TX
  • NPI 1326072943
  Medicare reassignment Care Compare group NPD
• Dell Children'S Medical Group

  • Sleep Disorder Diagnostic Clinic/Center
  • Austin, TX
  • NPI 1124748249
  NPD
• Dell Children'S Medical Group

  • Pediatrics Physician
  • Round Rock, TX
  • NPI 1790103869
  NPD
• Ascension Seton

  • Children's Hospital
  • Austin, TX
  • NPI 1447355771
  NPD (past)
• City of Austin

  • Emergency Medical Services (Emergency Medicine) Physician
  • Austin, TX
  • NPI 1083245070
  NPD (past)
• Seton Family of Doctors

  • Neurological Surgery Physician
  • Austin, TX
  • NPI 1588997233
  NPD (past)
• University of Texas Medical Branch, Austin Initiatives at Utmb

  • Internal Medicine Physician
  • Austin, TX
  • NPI 1144393802

  Pediatrics

  NPD (past)
• Utmb Austin - Initiatives

  • Multi-Specialty Clinic/Center
  • Austin, TX
  • NPI 1427099506
  NPD (past)

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

{
    "created_epoch": "1149552000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1154360790",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "301 UNIVERSITY BLVD",
            "address_2": "PROVIDER ENROLLMENT - RT. 1022",
            "city": "GALVESTON",
            "state": "TX",
            "postal_code": "775555302",
            "telephone_number": "409-747-0890",
            "fax_number": "409-772-0885"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "313 E 12TH ST",
            "address_2": "STE. 104",
            "city": "AUSTIN",
            "state": "TX",
            "postal_code": "787011954",
            "telephone_number": "409-772-2222",
            "fax_number": "409-772-0885"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LUK",
        "first_name": "JOHN",
        "middle_name": "CHANG",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-06-06",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "TX",
            "license": "L2434",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Michele Luhm, M.D.
• Nicollette C Luibrand, LCSW
• Karinna Luis-Marquez, RN
• Gianni Luisi, LCSW
• Deanne J Lujan I, COTA
• Jeff Luke, DC
• John Alonzo Luker, MD
• Suzanne Elaine Lukovics, P.T.
• Kaley Nichole Lulkovich
• Lauren Lull, RD

• Pediatrics Physician in Austin, TX
• Providers in Austin, TX by specialty
• Pediatrics Physician in Texas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 2026; 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.