Gregory Mason, MD

Primary specialty

Hospitalist PhysicianTaxonomy code 208M00000X

License

49567 Issued in MN

Practice address

400 East 3Rd Street
Duluth, MN 55805

Phone

(218) 786-8364

NPI assigned

Feb 15, 2007

Sex

Male

Sole proprietor

No

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 MN

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

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

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.

• The Duluth Clinic LTD

  dba Essentia Health Cloquet Clinic

  • Multi-Specialty Clinic/Center
  • Cloquet, MN
  • NPI 1902563638
  Medicare reassignment NPD
• The Duluth Clinic, LTD

  dba Essentia Health Duluth Clinic

  • Multi-Specialty Clinic/Center
  • Duluth, MN
  • NPI 1245278209
  NPD
• The Duluth Clinic, LTD.

  dba Essentia Health Hinckley Pharmacy

  • Community/Retail Pharmacy
  • Hinckley, MN
  • NPI 1245081066
  NPD
• St Marys Medical Center

  dba Essentia Health St Marys Medical Center

  • General Acute Care Hospital
  • Duluth, MN
  • NPI 1457393035
  NPD (past)

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

{
    "created_epoch": "1171497600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1713830400000",
    "number": "1437292976",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "400 EAST 3RD STREET",
            "city": "DULUTH",
            "state": "MN",
            "postal_code": "55805",
            "telephone_number": "218-786-8364"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "400 EAST 3RD STREET",
            "city": "DULUTH",
            "state": "MN",
            "postal_code": "55805",
            "telephone_number": "218-786-8364"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MASON",
        "first_name": "GREGORY",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-02-15",
        "last_updated": "2024-04-23",
        "certification_date": "2024-04-23",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "MN",
            "license": "49567",
            "primary": false
        },
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "MN",
            "license": "49567",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Julie A Martinson, RDH
• Lindsey Jean Martinson
• Amy Marxhausen, RDH
• Ashlee Ellen Marynik, PT
• Alexandra Rachel Mason
• Joselyn Mason
• David J Mast, MD
• Emily Louise Matack, CNP
• Nicholas Rudolph Matack, DDS
• Danijela Mataic, MD

• Hospitalist Physician in Duluth, MN
• Providers in Duluth, MN by specialty
• Hospitalist Physician in Minnesota

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 23, 2024; 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.