Gregory John Semancik, M.D.

Primary specialty

Pediatric Gastroenterology PhysicianTaxonomy code 2080P0206X

License

7076 Issued in AK

Practice address

3841 Piper Street
Suite T4-020
Anchorage, AK 99508

Phone

(907) 929-7337

Fax

(907) 929-7330

NPI assigned

Jan 2, 2007

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 1

Addresses

Other identifiers 1

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 MedicineAlso: Gastroenterology

Education

Other, 1989

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: gsemancik60731@ak.providencedirect.org
• Direct secure messaging: gsemancik@direct.scf.cc

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.

• Alaska Native Tribal Health Consortium

  • General Acute Care Hospital
  • Anchorage, AK
  • NPI 1437189339

  TX

  Medicare reassignment NPD
• Southcentral Foundation

  • Mental Health Clinic/Center (Including Community Mental Health Center)
  • McGrath, AK
  • NPI 1780614263

  TX

  Medicare reassignment
• Southcentral Foundation

  • Multi-Specialty Clinic/Center
  • Wasilla, AK
  • NPI 1457196685
  NPD
• Southcentral Foundation

  • Community/Behavioral Health Agency
  • Anchorage, AK
  • NPI 1659924108
  NPD
• Alaska Pediatric Specialties LLC

  • Specialist
  • Anchorage, AK
  • NPI 1396140950
  NPD (past)

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

{
    "created_epoch": "1167696000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1777334400000",
    "number": "1194882282",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3841 PIPER STREET",
            "address_2": "SUITE T4-020",
            "city": "ANCHORAGE",
            "state": "AK",
            "postal_code": "99508",
            "telephone_number": "907-929-7337",
            "fax_number": "907-929-7330"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3841 PIPER STREET",
            "address_2": "SUITE T4-020",
            "city": "ANCHORAGE",
            "state": "AK",
            "postal_code": "99508",
            "telephone_number": "907-929-7337",
            "fax_number": "907-929-7330"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SEMANCIK",
        "first_name": "GREGORY",
        "middle_name": "JOHN",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2007-01-02",
        "last_updated": "2026-04-28",
        "certification_date": "2026-04-28",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2080P0206X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Pediatric Gastroenterology",
            "state": "AK",
            "license": "7076",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "MD9892",
            "state": "AK"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Lavinia Sellers
• Tyrell Sellers
• George Cameron Sellner Jr., RN
• Laura Selvidio, CNM
• Julie M P Semaken
• Amanda Lynn Semenza, BA, CDCS
• Tiffany Ann Semenza, AA, CDCII
• Charles P Semling, PHARM D, BS
• David Wayne Semmens
• Andria Diane Semmler, B.A.

• Pediatric Gastroenterology Physician in Anchorage, AK
• Providers in Anchorage, AK by specialty
• Pediatric Gastroenterology Physician in Alaska

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 28, 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.