Mark T Sontag, M.D.

Primary specialty

Anesthesiology PhysicianTaxonomy code 207L00000X

License

29393 Issued in WI

Practice address

1221 Whipple St
Eau Claire, WI 54703-5270

Phone

(715) 838-3311

NPI assigned

Aug 11, 2005

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

Other identifiers 1

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

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.

• Chippewa Valley Anesthesia Associates, S.C.

  • Anesthesiology Physician
  • Altoona, WI
  • NPI 1336751023

  Anesthesiology

  NPD (past)
• Eau Claire Anesthesiologists LTD

  • Certified Registered Nurse Anesthetist
  • Eau Claire, WI
  • NPI 1346249422
  NPD (past)
• Mayo Clinic Health System-Northwest Wisconsin Region, Inc.

  • Critical Access Hospital
  • Barron, WI
  • NPI 1740239557
  NPD (past)

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

{
    "created_epoch": "1123718400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1400112000000",
    "number": "1528060381",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1101 W. CLAIREMONT AVE.",
            "address_2": "STE. 2C",
            "city": "EAU CLAIRE",
            "state": "WI",
            "postal_code": "54701",
            "telephone_number": "715-834-8721",
            "fax_number": "715-834-3087"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1221 WHIPPLE ST",
            "city": "EAU CLAIRE",
            "state": "WI",
            "postal_code": "547035270",
            "telephone_number": "715-838-3311"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SONTAG",
        "first_name": "MARK",
        "middle_name": "T",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-08-11",
        "last_updated": "2014-05-15",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "WI",
            "license": "29393",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "31423100",
            "state": "WI"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Kiran Raj Somers, DO
• Kelsie R Sommerfeld, OD
• Won S Song, M.D.
• Sarah Noelle Sonnenfeld, PHARM.D.
• Hannah Sonsalla
• Patricia T Sontag, NP
• Tominee Sorenson, PHARMD
• David Sorge, MD
• Sharon J Sormrud, SAC-IT
• Kimberlyn Rachael Sorvaag, MSW, APSW

• Anesthesiology Physician in Eau Claire, WI
• Providers in Eau Claire, WI by specialty
• Anesthesiology Physician in Wisconsin

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 15, 2014; 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.