Russell C Tontz III, M.D.

Primary specialty

Occupational Medicine PhysicianTaxonomy code 2083X0100X

License

1013927 Issued in MA

Practice address

5 Middlesex Ave
Somerville, MA 02145-1102

Phone

(617) 665-1000

NPI assigned

Jun 19, 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

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: rtontz118092@direct.challiance.masshiway.net
• Direct secure messaging: rtontz428009@ehrdirect.mayoclinicmsg.org

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.

• Cambridge Public Health Commission

  • General Acute Care Hospital
  • Cambridge, MA
  • NPI 1487603585
  NPD

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

{
    "created_epoch": "1182211200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1700438400000",
    "number": "1295930261",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1025 MARSH ST",
            "city": "MANKATO",
            "state": "MN",
            "postal_code": "560014752",
            "telephone_number": "507-625-4031"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5 MIDDLESEX AVE",
            "city": "SOMERVILLE",
            "state": "MA",
            "postal_code": "021451102",
            "telephone_number": "617-665-1000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "155 N Fresno St",
            "address_purpose": "LOCATION",
            "city": "Fresno",
            "state": "CA",
            "postal_code": "937012302",
            "country_code": "US",
            "telephone_number": "559-499-6450",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1025 Marsh St",
            "address_purpose": "LOCATION",
            "city": "Mankato",
            "state": "MN",
            "postal_code": "560014752",
            "country_code": "US",
            "telephone_number": "507-625-4031",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "TONTZ",
        "first_name": "RUSSELL",
        "middle_name": "C",
        "name_suffix": "III",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-06-19",
        "last_updated": "2023-11-20",
        "certification_date": "2023-11-20",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "MN",
            "license": "64408",
            "primary": false
        },
        {
            "code": "2083X0100X",
            "taxonomy_group": "",
            "desc": "Preventive Medicine, Occupational Medicine",
            "state": "MA",
            "license": "1013927",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Madeline Tkacs, B.S.
• Alexandra Todd, D.M.D
• Tino Tomasi
• Parra Tomkins, MD
• Kathleen Mary Tonne
• Catherin Torres-Iparraguirre
• Katelyn Marie Torres
• Charlene Ann Torrisi, RN
• Denise Tortora, MSPT
• Kathryn Tougas

• Occupational Medicine Physician in Somerville, MA
• Providers in Somerville, MA by specialty
• Occupational Medicine Physician in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 20, 2023; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.